Post on 04-Jun-2018
(UK 2262)
V(0)a
United Kingdom of Great Britain and Northern Ireland
Certificate of EC type-approval of a
measuring instrument
Number: UK 2262 Revision 5 issued by the Secretary of State for Business, Innovation & Skills
Notified Body Number 0126
In accordance with the requirements of the Non-automatic Weighing Regulations 2000
(SI 2000/3236) which implement, in the United Kingdom, Council Directive 2009/23/EC,
this certificate of EC type-approval has been issued to:
Avery Weigh-Tronix Ltd
Foundry Lane
Smethwick
West Midlands, B66 2LP
United Kingdom
in respect of a class III non-automatic weighing instrument designated the L226.
Maximum capacity 60 kg
Minimum capacity 400 g
Verification scale interval 20g
Maximum tare effect -60 kg
The necessary data (principal characteristics, alterations, securing, functioning etc) for
identification purposes and conditions (when applicable) are set out in the descriptive annex
to this certificate.
This Revision replaces earlier versions of the certificate.
Signatory: G. Glas for Chief Executive
National Weights & Measures Laboratory
(Part of National Measurement office)
Department for Business, Innovation & skills
Stanton Avenue
Date: 16 December 2009 Teddington
Valid Until: 23 May 2013 Middlesex TW11 0JZ
Reference No: T1128/0156 United Kingdom
2
Descriptive Annex
1 NAME AND TYPE OF INSTRUMENT
This mains operated digital electronic weight indicator incorporating counting facilities is
designated the Avery Weigh-Tronix L226. It is connected to a platform, designated the Avery
H300 to comprise a Class III self-indicating non-automatic weighing instrument.
The instrument has a capacity of 60 kg and a scale interval (e = d) of 20 g.
Alternative models of the instrument are designated Avery Weigh-Tronix L225, L216, L215,
L116 or L115.
2 DESCRIPTION
2.1 Digital weight indicator
A summary of the basic hardware and visual differences between the Model L226 and the
other models is given below: -
Model L226 Stainless steel waterproof case; alphanumeric keyboard, function keys and soft
keys; transmissive cold cathode backlit LCD graphics panel.
Model L225 Plastic case; alphanumeric keyboard, function keys and soft keys; integral
printer; transmissive cold cathode backlit LCD graphics panel.
Model L216 Stainless steel waterproof case; numeric keyboard, function keys and soft keys;
reflective black-on-white LCD graphics panel. An optional LED backlight
may be fitted.
Model L215 Plastic case; numeric keyboard, function keys and soft keys; integral printer;
reflective black-on-white LCD graphics panel. An optional LED backlight
may be fitted.
Model L116 Stainless steel waterproof case; numeric keyboard and function keys; simple
LCD display. An optional LED backlight may be fitted.
Model L115 Plastic case; numeric keyboard and function keys; integral printer; simple LCD
display. An optional LED backlight may be fitted.
All keys are non-tactile. Features allowed by the software of the L225 and L226 are codes
input; product look up (PLU); totalising; counting; check weighing; packing; conversion
factors and filling. A trips option is available on all models.
All models have a RS232 communications feature and may have RS422/RS485
communications by means of an additional PCB. A 20 mA loop is available on all models
except the L116 and L115. Computers may be connected to the indicator, via the opto-
isolated communications ports, for producing transaction documents and for management
purposes.
3
2.1.1 Mechanical
The models having a stainless steel case are described as complying with IP67 and those with
a plastic case to IP41 of EN 60529.
2.1.1.1 The IP41 enclosure comprises of an upper and lower plastic moulding to
which are attached the printed circuit board and other mechanical components.
The main printed circuit board is attached to the rear face of the lower moulding and to
D-type connectors in such a way that the D-type socket fit into apertures in the interface plate.
The print head mechanism is attached to the printer assembly plate. The controller board is
mounted such that the component side faces away from the plate onto which it is mounted.
The display module is mounted on four pillars in the upper moulding.
The keyboard tails pass through slots in the exterior front face of the upper moulding, the
membrane assembly is self-adhesive and stuck into an aperture on the exterior front face of
the upper moulding.
2.1.1.2 The IP67 version has a stainless steel case which has a lid and base. The
transformer and printed circuit boards are fitted to an internal base plate which may be
removed from the outer base. The display and keyboard are mounted in the lid.
Cable entry to the indicator is via waterproof glands on the lower case assembly. The signal
cables utilise bayonet connectors to facilitate the removal of peripherals. Unused cable entries
have metal blanking plates. The weight input leads use the connectors furthest away from the
mains input lead.
The mains lead enters the case via a waterproof gland and sealing washers. This lead is not
fitted with a plug for safety reasons.
The lid assembly is secured to the lower case assembly by four screw locks. A self adhesive
gasket is attached to the inner face of the lid around the periphery of the keyboard to prevent
ingress of water.
2.1.2 Electrical
IP41 Versions
The mains power input is via an IEC socket with integral fuse and EMC filter. The live and
neutral connections from the output of the IEC connector are taken to the primary of the
transformer.
IP67 Versions
The mains power cable enters the machine via a waterproof gland with the live conductor
being connected to one side of the internal fuse holder whilst the neutral conductor is
connected to the EMC filter. The fused live conductor is also connected to the appropriate
terminal of the EMC filter. These conductors are in turn connected to the primary of the
mains transformer.
4
2.1.2.1 The power supply used in both versions is of the switched mode type and uses
a switching regulator operating as a fly-back converter in continuous mode.
The output from the secondary windings of the transformer is connected to the main board
and is full wave rectified. All voltages necessary for the unit are derived from the 27 volt dc
secondary.
The power supply is designed to cope with excessive currents and to detect power failure.
2.1.2.2 The digital micro-controller controls the functions of the indicator by means of
a program stored in the EPROM. Since the address space of this micro-controller is limited to
64-kbytes, the program area is arranged in banks which are segmented into 16-kbyte blocks
referred to as pages. The input and output devices are mapped into memory and selected by
one of the decode lines as required. All data transfer and micro-controller actions are
synchronised to the system clock generated by a crystal oscillator.
2.1.2.3 The non-volatile EEPROM is used to store calibration data that is recalled
when the indicator is switched on, a serial access device is used to increase security of the
data from corruption.
Serial data is transferred between the EEPROM and the micro-controller and synchronised to
the clock signal generated within the micro-controller.
2.1.2.4 The system clock oscillator is buffered to provide a clock signal to the
analogue-to-digital converter. Serial data is then transferred in and out of this converter and
synchronised by the clock signal.
The data conversion circuitry is based around a semi-conductor monolithic 20-bit converter,
which supports either 5-, 4-, or 3-pin interfacing.
This converter is operated in external dc excitation mode and communicates with the micro-
controller via a 5-wire serial bus. Neither the internal calibration systems nor the offset DAC
is used.
Whenever power is applied to the converter the device must be reset to a known condition
before correct operation can occur, the converter includes an internal power on reset function
that initialises the internal logic. The analogue input voltage from the load cell is applied to
the converter via a low pass filter and a capacitor which decouples any high frequency noise.
2.1.2.5 The auto zero tracking function automatically adjusts the zero offset of the
scale to compensate for small variations of readings from the unit. The function only operates
when the unit’s weight reading is within the gross zero division and, when the weight is
deemed steady according to the parameters entered in the service set up mode. The zero
tracker will only work within the configured balance range. Zero setting is limited to 4% of
the total capacity.
2.1.2.6 In order to prevent the weight display from flickering when the weight is right
on the edge of a division, the anti-flicker function will bias the weight upwards or downwards
by a maximum of ± 2/10 div to ensure a stable reading.
This function will only operate if the weight is deemed to be steady and will not be active
when the unit is at zero or full capacity.
5
2.1.2.7 There are two tare keys on the L226 and L225 which enable the use of semi-
automatic and preset tares.
Both allow the user to subtract a value from the current load on the load receptor, although
each one is entered separately.
Tares available are:
Preset
Semi-automatic
Retained
Cumulative and
Stored
2.1.3 Options printed circuit boards
There are two options printed circuit boards mounted directly above the main PCB.
The serial communications board provides facilities for one optically isolated RS232 serial
channel with RTS and CTS handshake lines and one optically isolated RS485 or RS422
receive and transmit channel.
The second board provides four optically isolated outputs and four optically isolated input
trips and one 4-20 mA current loop analogue output interface powered either from the
indicator or from an external current loop source.
2.1.4 The internal printer on the IP41 model uses a Citizen MD910 print head and a
CBM-909-2DNF controller board.
2.1.5 Sealing and identification
2.1.5.1 At least one of the case securing screws has a special head and is fitted with a
recessed washer to prevent ready removal without a special tool. This may be covered by an
inspector’s approval sticker where local regulations require it. Protection levels are described
in Section 2.7.
The load cell connector, on the stainless steel cased versions, is a shrouded moulding with a
tamper-resistant screw and cup. The plastic cased models have a wire seal across the long
screws on the load cell connector at the indicator.
Alternatively the combination of both indicator and load receptor(s) may be identified by
having suitable labels which bear a common serial or identification number.
2.1.5.2 Markings are positioned behind the keyboard and display overlay or are
affixed to the side of the instrument and include separate capacity and rating plates.
The capacity plate includes:
capacity,
interval,
model number and name.
6
The rating plate includes:
Maximum capacity (Max..)
Minimum capacity (Min..)
Scale interval (e= )
Accuracy classification (III)
Certification number
Manufacturer’s name and logo
Electrical data
Serial number
Model number
The location of markings on the front face is shown on a model L226 in Figure 2 and the
location of markings on the side of the instruments is shown in Figure 3 for the IP67
enclosures and Figure 4 for IP41 enclosures.
2.2 Weighing platform
The Avery H300 platform consists of a fabricated steel baseframe to which the Avery T101
load cell is bolted. A fabricated steel H-frame, with a reinforced centre area, is bolted to the
top of the load cell and a loose steel load receptor fits over this. Five stops are fitted to
prevent overloading of the load cell; one is directly under the load cell and the others between
the base and H-frames. A steel cover plate under the baseframe conceals the junction box. A
level-indicator is fitted to the baseframe and is visible without removing the cover. The level
is adjusted by means of four levelling feet below the baseframe. The platform dimensions are
500 mm x 550 mm.
2.3 Operation
The machine can be considered to operate in a number of modes described below:
Off mode
Weighing mode
Supervisor mode
Trips mode
Service mode
Filling mode
Packing run mode
Conversion factor mode
Type through mode
Product listing mode
Checkweighing mode
Counting mode
7
2.3.1 Off mode
There are three methods of entering the off mode:
If the scale has been inoperative for some time
If the standby key is depressed in any mode other than off mode
If the power fails
2.3.2 Weighing mode
There are four ways of entering weighing mode:
Pressing the standby key when the unit is in Off mode
Pressing the trips key when the unit is in Trips mode (models L115 and L116
only)
Exiting Service Set Up mode
Exiting Supervisor Set Up mode
The instrument will first perform a ‘self-test routine’ which includes checking the hardware
for the configured options. During this routine, if any error is detected in the hardware then
this error will be displayed in the form of an error message which can be cross referenced.
After ‘self-test’, the instrument will check its configuration to confirm what parameters are
required at power-up and will act on these parameters if it is in standby mode.
2.3.3 Supervisor mode
This mode is the subsection of the Service Set Up Mode in which only certain parts of the
instrument’s configuration, which do not effect its calibration or other key functions, may be
altered.
2.3.4 Trips Set Up mode
The trip outputs can be configured in Service set-up mode. The operation of the trips interface
for each different configuration is described in the users instructions.
2.3.5 Service Set Up mode
2.3.5.1 Entering. There are two methods of entering this mode:
If the following sequence occurs then the unit will enter Service Set Up mode.
(a) In any mode other than the service set up mode press the test key
(b) Whilst the display test is occurring, type in the password and the unit will enter
the service set up mode.
If the machine is configured to be totally secure, i.e. not allow any access to EEPROM data,
then a connection must be made on the main circuit board to override the security level. This
can only be achieved by a properly trained service engineer.
2.3.5.2 Exiting. Similarly there are two methods of exiting this mode:
2.3.5.2.1 For models L226, 225, 216 and 215, after entering new parameters. Depress
the “ESC” key and, following the display prompts, using the “↵” key to confirm acceptance
of information will return the instrument to the weighing mode.
8
For the L116 and 115, exiting the setting up mode is achieved by the following key sequence:
CE, ↵, 99, ↵, ↵, 99, ↵.
2.3.5.2.2 Depressing of the ‘Standby’ key, or allowing the auto shutdown condition to
be met or the power failing, will cause the unit to enter the ‘Off mode’.
2.3.6 Filling mode
Filling mode provides the operator with a display which will allow him to perform a filling
operation into a container on the load receptor. The display indicates numerically and
graphically what percentage of the filling operation has been completed. The filling operation
will work for both position and negative (emptying) weights.
Within filling mode, when the weight is such that the filling target has been reached, then the
filling display will flash, and, if configured in service mode, the bleeper will sound.
2.3.7 Packing run mode
The packing run option allows the operator to set up the L225/6 to perform a simple
automatic totalising and printing of a predetermined number of items. In use, an item is
placed on the load receptor. When the weight is deemed steady, the totals store is updated
with the net weight and a print-out is automatically initiated on any of the communications
channels configured for PRINT key operation. The serial string used is the configured string
for that serial channel. When the set number of transactions has occurred, a final printout of
the packing run is produced, and the totals stores and transaction counters used are flagged for
resetting. The final packing run string is configurable in Service set-up mode. The totals
stores used are the default stores if there is no PLU active; if a PLU is enabled then the totals
associated with that PLU are used for the packing run totalising.
Weights below the minimum packing run value will not cause the totalising/printing
operation to occur.
2.3.8 Conversion factor mode
The conversion factor option allows the operator to `scale’ the net weight by a user-entered
factor. The operator can enter the factor and select the required units which has been created
by the Supervisor previously.
The conversion factor must be configured to be limited to a maximum multiplier (or divider)
of 10; if the machine is so configured then the converted value will NOT be displayed on the
L225/6 but can appear on printouts.
2.3.9 Type through mode
Type-through mode allows the operator to use the alphanumeric keys to type in a text string,
which will then be printed out on the selected printer.
2.3.10 Product listing mode
Product listing mode allows the operator to perform a simple product listing/totalising
sequence. The facility operates in conjunction with the user fields to allow a list of items to be
printed, and a total of the items produced at the end of the listing sequence. The user fields
can be used for listing information, e.g. supplier, address, batch number, etc.
9
When product listing is active, pressing the Print key will not cause the L225/6 to prompt for
user field data entry; instead of this a description is required. If a PLU is active, then the
description associated with the PLU is used; if not then the operator is prompted to enter a
description.
2.3.11 The L226 and L225 incorporate certain battery backed totals stores for
management information. These totals can be updated automatically, if configured, or
manually by the use of the ‘ADD TO TOTALS’ and ‘SUBTRACT FROM TOTALS’ keys.
The totalising function can be used for the transaction of Sub Totals, Grand Totals, Trips
Totals and PLU Totals.
The PLU key enables the operator to display previously stored PLUs. A PLU can be enabled
either by entering a PLU number or by entering a part number associated with that PLU.
2.3.12 The Gross/Net key may be configured to toggle between gross and net
indications or to press and hold for the gross value.
2.4 Calibration
Calibration is only possible when the unit is in Service Set Up Mode and, as previously
described, this mode can be configured to be accessed only by authorised personnel. When in
Service Set Up Mode, user prompts guide the service engineer to the sequence required for
setting up the machine.
2.5 Counting mode
This mode allows the operator to configure the L215, L216, L225 and L226 to perform
counting operations. When the count is active the weight display is replaced by the count
display and the units icon changes to display the counting function.
Entry to the counting mode is achieved when the soft key labelled ‘COUNT’ is depressed.
Other soft keys enable use of various operations in the counting mode e.g.:
F1 for Sample counting
F2 for Piece Weight counting
F3 for Target counting and
F5 for updates on the status of the unit
If valid parameters are available from a previous counting operation, then these will be used
to provide a count display immediately. If no parameters are available, then the L226 and the
L225 will continue to display weight in the current units.
2.6 Checkweigher
The checkweigher option allows the operator to perform simple checkweighing, whereby the
display gives an indication of under tolerance, within tolerance and over tolerance. The L226
and the L225 can be configured in the Service Set Up mode in either of two ways:
the weight display is replaced with three large blocks indicating under, accept
or over or,
The weight display is reduced in size and small under, accept and over blocks
appear directly underneath it.
10
2.7 Safeguards and interlocks
Various levels of security are described in the manufacturer’s instructions. The highest level
is provided when an internal solder pad is open-circuit. Its location on the main printed circuit
board is shown in Figure 5. Lower levels of security become accessible by connecting the two
sides of the pad and entering a password.
2.7.1 Tare and balance are inhibited if motion is detected.
2.7.2 Security
The service engineer uses this option to assign levels of security for the L225 and L226
service set up variables.
Upon entry the display shows the message SET UP PROTECTION and the currently
configured option.
Possible levels of security are:
None - no security settings are configured; the service engineer may alter any
data within the set up mode
PROTECT CAL-INFO - set up information relating to the calibration of the
instrument may not be altered. Other machine parameters can be freely altered.
VIEW SET UP ONLY - no variables can be altered in the set up mode
DENY ACCESS - service mode is not accessible.
2.8 AUTHORISED ALTERNATIVES
In addition to the instruments described in Section 2.1 above the following alternatives are
covered by this approval:
2.8.1 Having a custom built LC display.
2.8.2 Having a reflective graphics panel.
2.8.3 Avery H300 as described above but having capacities between and including
150 kg and 300 kg and sizes between and including 300 mm x 300 mm and 600 mm x 600
mm.
2.8.4 Having alternative load receptors utilising the following load cells.
The capacity and number of load cells chosen to suit a particular application must meet the
complete requirement of Section 4.12 “Requirement for load cells” of EN45501: 1992.
11
Load cell Mounting Drawing Emax kg vmin nmax
Avery 8713 H400000000AAAA
or B72164-107
or WMA 5332
or WMA 5320
or WS 3244
or 70714-295
125, 250, 500 Emax/
9615
4000
Avery T101 F3938 or C82347165 60, 150, 300 Emax/
3529
3000
Avery T103 82151-191 or 82151-192 6, 15, 30 Emax/
3500
3000
Avery
T103AVR
E 1002-49.IAD 8, 18, 36 Emax/
7500
6000
Avery T109 82151-191 or82151-192 6, 15, 30 Emax/
3500
3000
Avery T110 70714-302 or 82151-196 60, 150, 300 Emax/
3500
3000
Avery T201 BRT.171194.1 100 – 2500 lb Emax/
15000
5000
Avery T202 BRT.170195.1
or BRT 170195.2
500, 1000,
2000, 5000
Emax/
10000
3000
Avery T203 H400000000AAA A
or B72164-107
or WMA 5332
or WMA 5320
or WS 3244
or 70714-295 or E1002-
60 or LDP & LDP2
125, 250, 500 Emax/
12500
6000
Avery T203 H400000000AAA A etc
or 4150000000AA00
125, 250, 500 Emax/
12500
3000
Avery T302 70712-136
70714-162
50000, 100000
lb
Emax/15000 5000
Avery 8707 F3936 or F3937 6, 15, 30 Emax/
3500
3000
Avery 8708 J300000000AA00 or
H500000000A300 or
E1018-1 or CK13743
750,
1500,3000,
7000
Emax/
9259
4000
Epel Industries
S.A. Type SC
E1048-1.IAD 750, 1000,
1500
Emax/
10000
3000
Flintab SB4 4-85105 500, 1000,
2000, 5000,
10000
Emax/
11000
3000
Flintab RC1 4-85105 250, 400 kN Emax/
7000
3000
Flintec SB4-C3
and C3 MI 7,5
4-85105 500, 1000,
2000, 5000 and
10000 kg
Emax/11000 3000
Flintec SB4-C4
and C4 MI 7,5
4-85105 500, 1000,
2000 and 5000
kg
Emax/11000 4000
12
Load cell Mounting Drawing Emax kg vmin nmax
HBM C2A 70712-136 or 70714-162 1-10 t Emax/
10000
4000
HBM C15AC./.t
& C15BC./..t
E1041-1.IAD 20 - 100 t Emax/
10000
4000
HBM C16 70712-136 or 82151-192 12 - 60 t Emax/
12000
4000
HBM SP4 82151-191 or 82151-192 7-100 t Emax/
7143
3000
HBM BLC,
TLC, HLC,THC
E1018-1.IAD 220 - 4400
(500 - 10000
lb)
Emax/
10000
3000
HBM PW2 82151-191 or 82151-192 7.2 kg Emax/3600 3000
12 kg Emax/6000 3000
Emax/12000 3000
13 kg Emax/6500 3000
18 kg Emax/3600 3000
Emax/9000 3000
36 kg Emax/3600 3000
72 kg Emax/3600 3000
HBM
PWS/PWSM
70714-302 or 82151-196 7 - 150 Emax/
7143
3000
HBM Z6 70714-298/297 50, 125, 250 Emax/
10000
3000
HBM Z6C1 H400000000AAAA or
B72164-107 or
WMA 5332 or
WMA 5320 or WS 3244
10 - 1000 Emax/11111 1000
Z6C2 Emax/11111 2000
Z6C3 Emax/11111 3000
Z6C3 MR 50 - 200 Emax/14286 3000
Molen CSP-M 70712-136 or 70714-162 5, 10, 25, 40,
60, 100 t
Emax/5000 1000
Emax/10000 2000
Emax/10000 3000
Emax/11666 3500
Philips Type
PR6222/..C3
70712-136 or 70714-162 20, 30, 50 t Emax/
14000
3000
Revere CSP-M 70712-136 or 70714-162 10 - 60 t Emax/
8333
3000
Revere SSB BJA060843 or
BRT 170195.2
500, 1000,
2000, 5000
Emax/
10000
3000
Revere HPS 70714-302 6, 12, 30, 60 Emax/5000 1000
Emax/10000 2000
Emax/12000 3000
Revere SHB PLP2 20, 50,
100,200, 500,
1000
Emax/
7143
3000
Revere BSP E 1002-49.IAD 50-5000 Emax/
10000
3000
Revere RLC E 2001-14.IAD 500-5000 Emax/7000 3000
Emax/9333 4000
Emax/11667 5000
Emax/14000 6000
13
Load cell Mounting Drawing Emax kg vmin nmax
Revere 92 70712-136 or 70714-162 50000-
200000 lb
Emax/
8500
3000
Revere 5102 6000LD/LP, 6000DT/P
or H506-6000U
50 – 10000 lb Emax/10000 2000
Emax/10000 3000
Revere 5222 E 1002-66.IAD 2000, 3000,
4000
Emax/
10000
3000
Revere 5223 E 1002-66.IAD 50000, 65000,
100000 lb
Emax/
10000
3000
Salter Type
Weigh bar
E1062-1.IAD 500-34000 kg Emax/
10000
6000
Sensortronic
65023C
E1002/41-1.1AD 1000 - 10000
lb 500 - 5000
kg
Emax/
1000
3000
Sensortronics
65040C
E1002-66.IAD 10 t 1.5 kg 3000
15 t 2.25 kg 3000
20 t 3.0 kg 3000
25 t 3.75 kg 3000
30 t 4.5 kg 3000
35 t 5.25 kg 3000
40 t 6.0 kg 3000
45 t 6.75 kg 3000
50 t 7.5 kg 3000
60 t 9.0 kg 3000
75 t 11.25 kg 3000
90 t 13.5 kg 3000
100 t 15.0 kg 3000
Shering
SCL20SA
70712-136 or 70714-162 10 t – 100 t Emax/
8333
3000
Shering
SCL40SA
70712-136 or 70714-162 10t – 60t Emax/
8333
3000
Tedea Huntleigh
1250 C3
LCT2000000BA00 or
LCT3000000CA00
50,75,100,150,
200, 250, 300,
500
Emax/
10000
3000
Tedea Huntleigh
1140
E1002-30 15, 20, 30,50,
75, 100,150,
200
Emax/7500 3000
TedeaHuntleigh
1040
E1002-30 5, 7, 10, 15,20,
30, 50, 75,100
Emax/
5000
3000
Tedea Huntleigh
HSB
PLP1 or E1055-1.1 500,
1000,2000,
5000
Emax/10000 3000
Tedea Huntleigh
355
PLP2 or
108098 A or 108506 A
20, 50,
100,200
Emax /
7143
3000
Tedea Huntleigh
355
2BC011 Issue 3
(“Cellmate”)
20, 50, 100,
200 kg
Emax/7143 3000
Tedea Huntleigh
1320
E1002-47.IAD 1, 1.5, 2 t Emax/
10000
3000
Tedea Huntleigh
3410
E 2001-14.IAD 450-1800 Emax/
10000
3000
14
Load cell Mounting Drawing Emax kg vmin nmax
Tedea Huntleigh
3410/HSB
2BC031 Issue 5
(“Cellmate”)
500 and 1000
kg
Emax/10000 3000
Tedea Huntleigh
3510
PLP1 or E1055-1.1 0.5 - 5 t Emax/12000 2000
Emax/12000 3000
Tedea Huntleigh
3510
2BC031 Issue 5
(“Cellmate”)
500, 1000,
2000 kg
Emax/8333 3000
Tedea Huntleigh
3510/HSB
2BC050 Issue 4
(“Cellmate”)
5000 kg Emax/8333 3000
Thames Side
T66
LDP 20, 50,
100,200
Emax/
1500
3000
Thames Side
Scientific T95
FS-TS-T95 2, 5, 10, 20 t Emax/5000
Emax/10000
Emax/10000
1000
2000
3000
For platforms having a single load cell the load cell rating shall be chosen such that the
maximum capacity utilises not less than 25% of the load cell rating.
For platforms having four load cells the load cell rating shall be chosen such that the
maximum capacity utilises not less than 25% of the total load cell rating.
The Avery 8708 load cell approved under this type approval certificate is technically
compatible and freely interchangeable with the Avery T204 load cell. Any weighing
instrument verified under this approval may incorporate a mix of both the 8708 and T204
load cells.
The Avery 8701 load cell approved under this type approval certificate is technically
compatible and freely interchangeable with the Avery T302 load cell. Any weighing
instrument verified under this approval may incorporate a mix of both the 8701 and T302
load cells.
The Tedea Huntleigh “Cellmate” load cell mounting arrangements may be used for other load
cells approved under this type approval provided that they are technically and dimensionally
compatible.
The Shering SCL20SA, SCL40SA and Revere CSP-M load cells approved under this type
approval certificate are technically compatible and freely interchangeable with each other.
Any weighing instrument verified under this approval may have a mix of the SCL20SA, the
SCL40SA and the CSP-M load cells. The load cells fitted to the system shall have the same
rated capacity and the instrument shall have a maximum of 2500 divisions.
2.8.5 Having an Avery beam type load cell between the transfer lever and the dead
structure of a mechanical instrument converted to use one of the types of indicator described
in this certification and having not more than 3000 digital scale intervals. Approved types are
listed below: -
15
Load cell Platform/Weighbridge type Drawing No
8713 Avery 8938 F4004
8708 Avery 8940 K13767
8708 Quadrelli ‘Traghetto’ E1001-01 through E1001-52
T203 Avery 8938 F4004
T109 Avery 89S E1047-1.IAD
Having the Avery 8708 load cell with not more than 4000 digital scale intervals.
Having the HBM Z3 load cell with the following characteristics:
Load cell type Emax nmax Y
Z3H2
Z3H3
10 kg – 2000 kg
10 kg – 2000 kg
2000
3000
7000
8400
Z3H2-A
Z3H3-A
50 kg – 2000 kg
50 kg – 2000 kg
2000
3000
7000
8400
2.8.6 Having one or more printers from the following range connected to the
indicator: -
Avery K200
Avery K500
Avery K504
Avery B600
Eltron LP2042SE
Epson FX 850
2.8.7 Having the GEC Avery name replaced by Brecknell and the model
designations changed to BL115, BL116, BL215, BL216, BL225 and BL226.
2.8.8 Having the GEC Avery name replaced by Berkel and the model designations
changed to LC115, LC116, LC125 (= GEC Avery L215), LC126 (= GEC Avery L216),
LC135 (= GEC Avery L225) and LC136 (= GEC Avery L226).
2.8.9 Having a GEC Avery L500 or L505 remote display connected to the
instrument. The L505 is the L500 in a flame-proof enclosure.
2.8.10 Having the mains supply disconnected and the display unit powered from a
battery option. This option is only fitted to the L115, L116, L215 and L216.
The L115/L215 requires 6 C type cells whilst the L116/L216 battery is a 12 volt / 7 ampere
hour rechargeable gel type. When the battery option is fitted a battery icon appears on the
display. When the supply voltage drops to 7.00 V the icon flashes and an error message will
appear on the display. The message on the L115/L116 is ‘ERR 996’, and on the L215/216 is
‘SUPPLY/BATTERY LOW’. Pressing the enter key will clear the message and allow normal
operation of the indicator to continue. The icon will continue to flash. When the supply
voltage drops to 6.33 V the indicator will cease to operate and a second error message will
appear on the display. The message on the L115/L116 is ‘ERR 998’, and on the L215/216 is
‘SUPPLY BATTERY LOW’, ‘TURN OFF INDICATOR’. The Battery must then be replaced
or recharged.
16
2.8.10.1 T301 Load cell
Having the combination of the load cell shown below used with the L226 family, where the
L226 family will be used as the indicator only with the suffix “D” to identify the indicator
used.
Load Cell Emax Mounting Drawing VMin nmax
Avery T301 30000 kg 70714-342 Emax/9375 6000
Analogue-to-digital conversion is performed in the T301 load cells. The circuit contains a
programmable gain amplifier set to a gain of 100 and a 20 bit A/D converter and digital filter.
The effective sample rate of the A/D is 16 kHz.
Various internal registers exist to enable programming of gain, offsets and operating modes.
The processor writes to these registers only at power up and also reads the registers back so as
to ensure that the device is correctly programmed. The register values are factory set.
The load cell column gauges provide a signal which is suitably de-coupled before reaching
the A/D converter chip.
An A/D reference voltage is generated by dividing down the +/- 5 V excitation voltage using
precision resistors.
Provision is made in the T301s analogue-to-digital processing to compensate for changes in
temperature by using an integrating A/D converter controlled by the processor. The processor
uses a timer to provide both a constant ramp-up time and to measure the temperature
dependant ramp-down period.
The weight is passed onto two digital filters after being temperature compensated. After
filtering, the weight is converted from counts to divisions and also linearised in one function.
The formula is stored in EPROM but is copied into RAM at power-up. The weight is then
passed to a junction box. The junction box has a painted mild steel enclosure with cable entry
glands for load cell cables (maximum 8-off), indicator cable and mains supply cable. It has a
lid secured with four screws which gives access to the internal components.
Internally, the junction box contains two PCBs:
(i) Power supply PCB, part no. 71014-880
This contains a mains transformer, rectification and regulation circuitry to provide the +/- 9V
DC power supply to the connected T301 load cells. Connectors are provided on the PCB to
allow up to eight T301 load cells to be connected and for a cable to a Loadstar indicator to be
connected. The PCB also incorporates surge arresters and transorbs to protect the system
from damage in the event of high voltage surges due to lightening activity.
Mains power is supplied to this PCB via a mains filter which is located adjacent to the PCB.
17
(ii) T301 load cell scanning PCB, part no. 71014-875
This is a microprocessor based PCB with associated RAM, ROM, and EEPROM memory
and software. It is connected to the power supply PCB via a ribbon cable and its function is
to sequentially address the connected load cells to obtain weight values, apply corrections for
deadload, span, non-linearity and eccentric load conditions and to output a corrected total
load value to the connected Loadstar indicator. Corrections to the load cell weight values are
made in accordance with factors stored in the EEPROM memory at the time of system
calibration. The EEPROM checksum is validated at power up and the EEPROM contents are
hardware write-protected after calibration.
The scanning PCB also continuously monitors the status of the EEPROM and A-D converters
in each connected T301 load cell and flags potential error conditions to the connected
Loadstar indicator.
2.8.10.2 Having the limit of maximum capacity such that 6 kg ≤ maximum capacity ≤
200 000 kg for weighbridge applications, where the approved vmin and nmax figures for the
load cells shall be observed.
2.8.11 Having an additional 20 mA serial communications circuit board fitted to the
L115 and L116. This circuit board is referred to as a dual 20 mA serial communications PCB.
The circuit board provides either an RS 232 or a 20 mA communication on Comm 2 and a
20 mA only on Comm 3.
2.8.12 Having a GEC Avery B600/Thermatronic intelligent label printing device
connected to the display unit.
2.8.13 Having a GEC C919 remote keyboard. The remote keyboard imitates the
operation of the integral keyboard, which is not disabled when the remote keyboard is
connected.
2.8.14 Having a GEC Avery Y805 Trips Unit. The Y805 is used to interface Trips
facilities to the XL18 series of indicators between opto-isolated outputs and high AC/DC
loads. The unit has up to four input and four output modules which can be individually
configured for site applications.
2.8.15 Having an overhead track weighing device.
The device is constructed according to drawing number H100000000AAAA or
4150000000AAOO.
The load cells are Avery type 8713.
The device has a length between and including 300 mm and 1200 mm and a capacity of either
300 kg by 0.1 kg or 600 kg by 0.2 kg.
18
2.8.16 Having an H205 platform using a T103 or T109 load cell, with the following
three alternative AVR (Automatic Variable Resolution) capacities:
capacity 6 kg with e = 1 g from 0 to 3 kg
and e = 2 g from 3 kg to 6 kg
capacity 15 kg with e = 2 g from 0 to 6 kg
and e = 5 g from 6 kg to 15 kg
capacity 30 kg with e = 5 g from 0 to 15 kg
and e = 10 g from 15 kg to 30 kg
The load cell mounting is shown in Drawing No 82151-191 or 82151-192.
2.8.17 Having the L115, L215 and the L225 type instruments without the integral
printer.
2.8.18 Having:
(i) on models L226 and L225 as a replacement for the transmissive cold cathode
LCD panel, a reflective black on white LCD graphics panel with optional LED
backlighting;
(ii) on models L216 and L215 as a replacement for the reflective black on white
LCD graphics panel, a transmissive cold cathode LCD graphics panel.
2.8.19 Having Zenner barriers fitted to the excitation, sense (reference) and signal
lines of the cable, between the load cell and the indicator.
2.8.20 Having alternative load receptors utilising any combination of the Avery T302
and Avery 8701 load cells.
Load Cell Mounting Drawing Emax lb vmin on linearised
output nmax
Avery 8701 70712-136
70714-162
50000, 100000 Emax/
14164
5000
The load cell output is linearised digitally at up to nine points on the output. The entered load
and unlinearised figures are stored in EEPROM and when in weighing operation mode the
relevant calculation is used to linearise the digitised load cell signal to give a linearised
weight display reading.
The Avery T302 and Avery 8701 load cell may be incorporated into a multi-interval
instrument, with two partial weighing ranges, of not more than 3000 divisions per partial
range.
2.8.21 Having the indicator connected to H5XX series load receptors comprising four
Avery 8708 load cell graded for 6000 V. The load receptor is constructed according to
drawing number H500000000A300.
The system has a capacity of between and including 1200 kg and 6000 kg and has not more
than 6000 scale intervals.
The 8708 load cell can be used for partial weighing operation having two partial ranges where
n ≤ 3000 divisions per range.
19
2.8.22 Y101 cornering unit
The indicator may be connected to a Y101 load cell cornering unit. The maximum number of
cells which may be connected is determined from the following table. The Y101 unit should
be sealed.
Indicator type Display type Maximum number of load cells
L226 Transmissive cold cathode 8
Reflective LCD 8
L225 Transmissive cold cathode 8
Reflective LCD 8
L216 Transmissive cold cathode 8
Reflective LCD 8
L215 Transmissive cold cathode 8
Reflective LCD 8
L116 Transmissive cold cathode 8
Reflective LCD 8
L115 Transmissive cold cathode 8
Reflective LCD 8
2.8.23 Lightning protection
Additional components may be fitted to the main PCB to provide ‘Lightning Protection’.
Reference drawing number 71014-829.
The protection will act on the ADC the ‘COM 1’ communication channel.
2.8.24 Having the indicator mounted on a column and connected to an H115 type
load receptor. This combination may be known as the HL115. The load receptor uses a single
Excell Precision Co. Ltd. type C2L1 load cell. The mounting drawing number is
E1039/1.IAD.
For this combination:
60 kg ≤ max ≤ 300 kg n ≤ 3000
2.8.25 Having an Avery H305 platform, incorporating a T110 load cell, connected to
the indicator. In which case n ≤ 6000 for a single range instrument or ni ≤ 3000 for a multi-
interval instrument with not more than 2 ranges.
2.8.26 Having the indicator modified by the addition of a second analogue to digital
converter. This permits two platforms to be connected to the same indicator.
The primary display is able to show both platform weights simultaneously with the active
platform display highlighted, or individual platform displays one at a time.
20
2.8.27 Having an Avery H4xx platform, connected to the indicator, having platform
construction details as shown in the following table:
Construction Drawing Load Cell nmax
E1059-1.IAD
or
E1060-1.IAD
Avery T203 n ≤ 6000 for a single range instrument.
ni ≤ 3000 for a multi-interval instrument with not
more than 3 ranges.
E1059-1.IAD Avery 8708 n ≤ 6000
2.8.28 Having a pallet truck weigher platform, connected to the indicator, using the
load cells described below:
Load Cell Emax Mounting Drawing vmin nmax
Tedea Huntleigh 3410 450 - 1800 kg E 2001-14.IAD Emax/10000 3000
Tedea Huntleigh 3510 0.5 - 5 t PLP1 or E1055-1.1 Emax/4000 1000
Emax/8000 2000
Emax/12000 3000
The pallet truck weigher platform will have a level indicator.
2.8.29 Having either the L115, L215, or L225 indicator connected to a H115 type
load receptor. The combination will be known as the HL115, HL215 and HL225 respectively.
The load receptor uses a single load cell of a type listed below:
Load cell Emax Mounting drawing number vmin nmax
Celtron LPS 6, 10, 15, 20, 35 kg E1039/1.IAD Emax/5000 3000
Celtron LOC 5, 7, 10, 15, 20, 30,
50, 100 kg
E1039/1.IAD Emax/8000 3000
2.8.30 Having the following load cell:
Load cell Mounting Drawing No. nmax
T203 B72164-107, WMA5332,
WMA5320 or WS3244 n ≤ 3000 for a multi-interval instrument
with not more than 3 ranges
2.8.31 Having an H303/281 LC platform, incorporating a T110 load cell, connected
to the indicator, in the following capacities:
Max e Load cell capacity
60 kg 20 g 180 kg
150 kg 50 g 350 kg
2.8.32 Having a Tameside Scale Services filling head and vibration platform
designated the TSS LP, incorporating four Revere HCB load cells or four Tedea Huntleigh
3510 load cells. The platform may have a maximum capacity (Max) of between 300 kg and
6000 kg, having no more than 3000 scale intervals (n).
21
2.8.33 Having a Thameside Scale Services filling head and vibration platform,
utilising the Avery H500 platform as described in 2.8.4. The platform may have a maximum
capacity (Max) of between 300 kg and 6000 kg, having no more than 3000 scale intervals (n).
2.8.34 Having an Avery Berkel M209 computer connected to one or more weighing
instruments.
The computer will provide indelible weight record storage and also the ability to view the
stored records on screen. The weight data is stored against a unique consecutive number and a
weighing system identification number.
The weight data storage software and the record retrieval software are legally relevant and
protected against change by common software tools through checksums. Any changes to this
software will prevent the program from running.
The version numbers are:
Data archive Version 1.1
Record retrieval Version 1.0
The version numbers can be viewed by running the record retrieval program.
2.8.35 Any load cell(s) may be used for instruments under this type approval
certificate, provided the following conditions are met:
• There is a respective OIML Certificate of Conformity (R60) or a test
certificate (EN45501) issued for the load cell by a Notified Body responsible
for type examination under Directive 2009/23/EC.
• The certificate contains the load cell types and the necessary load cell data
required for the manufacturer’s declaration of compatibility of modules
(WELMEC 2, Issue 5, 2009, No 11), and any particular installation
requirements. A load cell marked NH is allowed only if humidity testing to
EN45501 has been conducted on this load cell.
• The compatibility of load cells and indicator is established by the manufacturer
by means of the compatibility of modules form, contained in the above
WELMEC 2 document, at the time of EC verification or declaration of EC
conformity of type.
• The load transmission must conform to one of the examples shown in
WELMEC Guide 2.4.
22
2.8.36 Load receptor types
The load receptors in the following table are those types intended to be used with the load
cells listed under sections 2.8.4, 2.8.5, 2.8.9 and 2.8.20. The load cells must be mounted
correctly according to their mounting drawings.
Type Load receptor No. of load cells
Weighbridge All concrete platform with or without rails 4 – 10
All steel platform with or without rails 4 – 10
Steel + concrete platform with or without rails 4 – 10
All concrete platform with or without rails. Lever
system
1
All steel platform with or without rails. Lever system 1
Steel + concrete platform with or without rails. Lever
system
1
Platform scale Platform scale with corner load cells 4
“Bar” pair for pallet weighing 4 (2 per bar)
Platform scale with lever system 1
“Bar” pair for pallet weighing with two lever systems 2 per bar
“Single point” type 1
Overhead
track scale
Standard overhead track scale 1 or 2
Hopper Standard 3
Lever system + one load cell 1
2.8.37 Having an alternative indicating device, designated HL215C. The indicating
device has identical physical construction and metrological functionality to the L215 but has
additional software functions to include “Average weight/Bread modes”. These additional
software functions are optional which can be set up at installation.
2.8.38 Having any of the range of indicators connected to platforms incorporating the
Avery T204 load cell having the following characteristics:
- for multi-interval operation with not more than three partial weighing ranges
and nmax = 3000 for each partial weighing range. Having the T204 load cells
with Emax of 750 kg, 1500 kg and 3000 kg.
- for single interval operation with nmax = 6000 and using the T204 load cell
with Emax values as listed above.
2.8.39 Having a mechanical platform incorporating a load cell and lever arrangement
designated Model SH1000. The platform is manufactured from painted mild steel or with a
stainless steel plate and mild steel base and internal components and can have platform
dimensions from 0.80 m x 0.80 m to 1.50 m x 2.00 m.
23
The platform may have the following capacities utilising either the Avery T201, T203 or
T204 load cells as shown in the following table:-
Platform dimension Capacity Load cell Alternative load cell
0.80 m x 0.80 m 300 kg
600 kg
T203 – 125 kg
T203 – 250 kg
T201 – 90 kg
T201 – 225 kg
1.00 m x 1.00 m 600 kg
1000 kg
T203 – 125 kg
T203 – 250 kg
T201 – 90 kg
T201 – 225 kg
1.00 m x 1.25 m 600 kg
1500 kg
T203 – 125 kg
T203 – 250 kg
T201 – 90 kg
T201 – 225 kg
1.25 m x 1.50 m 600 kg
1500 kg
3000 kg
T203 – 125 kg
T203 – 250 kg
T203 – 500 kg
T201 – 90 kg
T201 – 225 kg
T201 – 450 kg
1.50 m x 1.50 m 600 kg
1500 kg
3000 kg
T203 – 125 kg
T203 – 250 kg
T203 – 500 kg
T201 – 90 kg
T201 – 225 kg
T201 – 450 kg
1.50 m x 2.00 m 1500 kg
3000 kg
6000 kg
T203 – 250 kg
T203 – 500 kg
T204 - 1500
T201 – 225 kg
T201 – 450 kg
T201 – 1100 kg
2.8.40 Having the indicator connected to an Avery J3xx load receptor comprising
four Avery 8708 load cells graded for 6000v. The load receptor is constructed according to
drawing number J300000000AA00.
The system has a capacity of between and including 1200 kg to 12000 kg and has not more
than 6000 scale intervals.
2.8.41 Having the limit of maximum capacity such that:
6 kg ≤ maximum capacity ≤ 200 000 kg
where the approved Vmin and Nmax figures for the load cell shall be observed.
2.8.42 Having the indicator connected to an Avery Berkel H4xx, H5xx or J3xx series
load receptor comprising four Revere HCB load cells graded for 6000v. The load cells may
alternatively be designated Avery T205.
The load receptors are constructed according to drawing numbers E1059-1.IAD,
H500000000A300 or J300000000AA00 respectively.
The system has a capacity of, between and including, 1200 kg and 6000 kg with not more
than 6000 scale intervals.
2.8.43 Having the instrument arranged for dedicated weighbridge operation by the
installation of appropriate software modules which will include the following additional
features:-
(i) Having the facility to perform ‘Public Weighings’ provided that the
requirements of any applicable National Regulations are met.
24
(ii) Having provision to perform Axle Weighings. This feature may only be used
for Article 1.2(b) applications as defined in Directive 90/384/EEC.
(iii) Having the provision for the addition of an Adjusted Net Weight value on the
ticket issued.
(iv) Having the facility to summate the weight values from multiple platforms,
provided that the platforms have the same maximum capacities (Max) and
verification scale interval (e).
2.8.44 Having Class IIII, with single interval and n ≤ 1000.
2.8.45 Having the instrument modified as described below.
2.8.45.1 System description
2.8.45.1.1 Having a FIBC bag filling system mounted on a 1.5 m x 1.5 m H500 platform
as shown in Figure 6. The system capacity is 2000 kg by 0.5 kg.
2.8.45.1.2 The FIBC bag filler comprises a mainframe fabricated from rolled steel
sections and plate.
2.8.45.1.3 A fabricated carriage is suspended within the mainframe and supported by a
counterweight. The carriage runs within guide tracks on the mainframe. The carriage supports
the filling spout and bag holding forks.
2.8.45.1.4 A pneumatic cylinder, mounted in the mainframe, controls the movement of
the carriage/counterweight assembly.
2.8.45.1.5 The FIBC bag is attached to the filling spout by means of a manually operated
locking ring.
2.8.45.1.6 The bag filling system is mounted on and secured to the top plate of the H500
platform by 4 bolts.
2.8.45.1.7 The filling system incorporates the following controls:
(i) CYCLE START Starts the normal filling cycle.
(ii) HOLD CYCLE Pauses the normal filling cycle.
(iii) TOP UP Add to delivered weight if necessary.
(iv) ACCEPT WEIGHT Accepts final delivered weight, commands
indicator to print final weight, releases bag for
removal.
(v) SELECT Two position selector switch:-
MANUAL/AUTO Manual - allows manual carriage and feed
operation.
Auto - allows the normal filling cycle to operate.
25
(vi) SELECT CARRIAGE. Three position selector switch.
UP/DOWN Functions with manual selector to raise and
lower the carriage and forks.
(vii) MANUAL MAIN Functions with manual selector to open feed
FEED device to allow fast feed to clear product
remaining in the feed system.
(viii) ABORT CYCLE Aborts the filling cycle. Once operated a filling
cycle cannot be restarted. The part full bag must
be removed before a new cycle is started.
Functions as an emergency stop.
2.8.45.2 System operation
2.8.45.2.1 An empty pallet is placed on the platform. With the carriage in the lowered
start position an empty bag is placed on the pallet and the bag loops slid over the carriage
forks. The neck of the bag is clamped in position on the filling spout.
2.8.45.2.2 The start pushbutton is pressed causing the carriage pneumatics to operate
lifting the bag clear of the pallet.
2.8.45.2.3 The system causes the indicator to tare off the weight of the pallet and the bag.
2.8.45.2.4 The feed device above the filling machine opens allowing material to flow into
the bag. When the weight of the product in the bag exceeds that of the counterbalance weight
the bag slowly lowers onto the pallet. The counterweight keeps the bag in tension during the
remainder of the filling cycle.
2.8.45.2.5 When set point 1 is reached a slow fill is activated. Filling continues at the
slow fill rate until set point 2 is reached when the feed stops.
2.8.45.2.6 The operator reads the delivered weight displayed on the indicator. If
underweight, the operator presses the “Top-up” pushbutton, activating slow fill, until the
required weight is delivered.
2.8.45.2.7 When the delivered weight, displayed by the indicator, is acceptable, the
operator presses the “Accept Weight” pushbutton. The system issues a print command to the
indicator and cancels the tare.
2.8.45.2.8 The system activates the carriage pneumatics lowering the carriage forks to
release the tension on the bag loops. The bag neck clamp is released allowing the bag to be
removed from the platform.
2.8.45.3 Authorised alternatives
2.8.45.3.1 Having a powered roller conveyor mounted on the platform, inside the
mainframe, to allow transfer of the pallet and bag to a roller or belt conveyor system when the
filling cycle is complete (Figure 7).
2.8.45.3.2 Having a powered belt conveyor mounted on the platform, inside the
mainframe, to allow transfer of the FIBC bag to a roller or belt conveyor system when the
filling cycle is complete (Figure 8).
26
2.8.45.3.3 Having the standard spout with locking ring replaced with an inflatable spout
to provide a seal between the bag neck and the filling spout (Figure 9).
2.8.45.3.4 Having the standard spout with locking ring replaced with a pneumatic clamp
spout to clamp the bag neck to the filling spout (Figure 9).
2.8.45.3.5 Having a bag inflation blower fitted for use with FIBCs fitted with loose
polythene liners. In which case the carriage forks may be omitted and an additional control
added to facilitate bag inflation.
2.8.45.4 Recommended additional tests
2.8.45.4.1 Ensure that all connections to the FIBC filling system do not, and could not,
cause any interference that could affect the weighing result.
2.8.46 Having a weighbridge installation with up to 12 load cells:
The installation is arranged as two groups of six load cells, type 8701. The six load cells of
each group are connected to a Y101 corner unit, the two Y101 corner units are connected to
the indicator where the summation of the weight value is calculated and displayed.
2.8.47 Having the L116 indicator re-badged with the Salter Brecknell name and
designated the Dp 101.
2.8.48 Having the manufacturer designated as Berkel Prior.
2.8.49 Having alternative load receptors utilising the following load cells. Where a
reduced operating temperature range is specified, this shall be included in the descriptive
markings.
Manufacturer Type Capacity No. of scale
intervals
Max. no. of
load cells
Temperature
range
Revere 363 2,000 & 3,000 lb 3000 1 -10 to +40 °C
Revere CP1 50,000 & 100,000 lb 3000 6 0 to +30 °C
Sensortronics 60001 1,000 & 2,000 lb 3000 1 0 to +30 °C
Toledo CS
Capcheck
50,000 lb 3000 6 0 to +30 °C
Solidate SB2 35,000 & 45,000 lb 3000 6 0 to +30 °C
BLH/Toledo C2PI 50,000 lb 2500 4 0 to +30 °C
HBM CISF 50,000 & 100,000 lb 2500 4 0 to +30 °C
HBM C3H2 30,000 kg 3000 6 -10 to +40 °C
2.8.50 Having the manufacturer designated as Avery Berkel Ltd or GEC Avery.
2.8.51 The Avery 8701 load cell approved under this type approval certificate is
technically compatible and freely interchangeable with the Avery T302, T302i and T302x
load cells. Any weighing instrument verified under this approval may incorporate a mix of
8701, T302, T302i and T302x load cells.
27
3 TECHNICAL DATA
Accuracy Class III
Maximum capacity = Max = 60 kg
Minimum capacity = Min = 400 g
Verification scale interval = e = 20 g
Maximum tare effect = - Max.
The above data, other than the accuracy classification, may vary for the alternatives listed in
Section 2.8 to reflect the relevant capacities and verification intervals.
4 PERIPHERAL DEVICES AND INTERFACES
Having the indicator connected via a serial communications port to a printer which will be
used for tally roll record purposes and, via an opto-isolated communications port, to a
computer. In such cases a green `M’ sticker must be affixed to the tally roll printer and a red
`M’ sticker to the computer.
The computer may incorporate a VDU and associated keyboard. The VDU may be in the
form of a CRT, Dot Matrix, LCD or similar form of display as appropriate to the system.
A unique consecutive number generated by the indicator is associated with each weight sent
to the computer. Unique in this context means that it shall not be repeated within one year.
The consecutive number including, where relevant, the date can not easily be reset.
A number of weighing systems may be connected to a common computer in which case the
consecutive number must also identify the particular weighing system in use.
Data sent from the computer or associated keyboard to the indicator is limited to:
requests for data
print commands
data acknowledgement
entry of a tare
operation of set points
Commands for the above may be initiated but not acted upon while motion is detected. The
instrument must respond without noticeable delay when stable equilibrium is achieved.
A ticket must be produced for each weighing. First and second weights used to produce a
“NET” weight may both be recorded on a common ticket.
In cases where a number of similar items are assembled into lots, e.g. a pallet, then a
summary ticket may be printed with clear details of the individual items forming that load.
The ticket has all weight related data in characters not less than 2 mm high and without
slashed zeros, has the correct units of measurement, indicates the consecutive number of each
weighing, identifies the place of weighment, is clear and unambiguous and carries clearly and
prominently the statement: “A tally roll record of this weight is retained for 6 months”, or
suitable equivalent wording.
28
It is not possible to initiate a second printout for the same weighing operation, unless:
(1) the second ticket is clearly a duplicate of the first ticket e.g. multi-leaf with
different colours, headings or is marked duplicate, or
(2) the ticket is in the form of labels to be attached to the item being weighed.
When the ticket is attached securely to, and retained on, the item weighed, weight related data
produced by or from the computer carries a clear statement:
“A tally roll record of this weight is retained for 6 months and may be found
by reference to the weight ticket.”
Other data will be clearly separated from the weight data and where such data includes
conversion factors these will be stated, e.g. milk xxx kg/litre xxx litres.
Where a stored “weighed tare or first weight” is used the consecutive number of that weight
and the date of weighment are shown on the relevant documents.
The computer may have additional printer(s) or terminals connected to the system for other
purposes.
The computer may be connected to a further remote computer.
Disconnection of the tally roll power supply, data line or shortage of paper inhibits data
transmission to the computer.
Where weight information is sent to the computer solely to provide control of a process then
the consecutive number need not be generated provided the architecture of the circuit and
software is such that the information cannot be stored, printed or passed on to another
computer.
A VDU may be used to display weight only where it forms part of the text of a multi-line
display and the weight data are the same height as the text and the digits / figures are not
more than 6 mm in height.
The computer is not used to control functions affecting the operation of the weighing system
e.g., zero setting devices, barriers to control the position of a vehicle on a weighbridge etc.
All tickets and documents concerning weight data produced by or from the above system,
including remote computers, intended for purposes listed in Article 1.2(a) of the Directive
2009/23/EC are directly traceable to the tally-roll record which contains enough information
to allow cross-reference.
The ticket printer may be connected to the indicator directly in place of the tally roll printer in
which case:
(1) all relevant information (such as the unique consecutive number) is now
printed on the above ticket and the ticket shall be retained for a period of 6
months.
(2) data shall not be sent to the computer unless a ticket has been produced and
any weight related data produced by or from the computer shall carry a clear
statement: “The weight of these items may be verified by reference to the
relevant weight ticket”, or appropriate equivalent wording.
29
4.1 Having an Avery M209 peripheral device with integral data archiving facility.
The M209 is basically an Intel 386, 486 or ‘Pentium’ based PC mounted within a stainless
steel case. An LCD panel and keyboard are provided.
The stainless steel case is secured against unauthorised entry.
Weight data is securely stored in a separate partitioned area of the hard disk with sufficient
storage capacity for 2000 records a day for 6 months.
Weight data records may be viewed but cannot be altered. When the data storage area is full
the records will start again from the beginning, over-writing the previous records. At this time
the previous records are at least six months old.
This peripheral device may be used to replace a computer and associated tally record printer.
4.2 The non-automatic weighing instrument (NAWI) may be connected to any
peripheral device which is technically compatible and has a Test Certificate issued by a
Notified Body designated for EC Type Examination under Directive 90/384/EEC in any
member State and which meets the essential requirements of the Directive including the
relevant EMC requirements. Such peripherals bear a Green `M’ sticker.
However, simple recipient devices that:
- bear the CE mark for conformity to the EMC Directive 89/336/EEC;
- are not capable of transmitting any data or instructions into the NAWI other
than to release a printout or to check for correct data transmission;
- print or indicate weighing results and other data as received from the NAWI
without any modification or further processing; and
- comply with the applicable requirements of EN45501 i.e. 4.2, 4.4, 4.5, 4.6 and
4.7,
may be connected to a NAWI which transmits data in accordance with 5.3.6.3 of EN45501
without a Test Certificate having been issued. A printing device may print additional
information such as date or number, to identify the printed weighing result(s) or sets of
weighing results.
4.3 The weighing instrument may be connected to any of the following printers:
Epson TM290
Epson TM295
4.4 Having a Tulip type DC/DT 486 sx/dx computer to which one or more
weighing instruments can be connected. Each connected weighing instrument has its own
identifier which is also used to differentiate between the indelible weight records for each
instrument.
30
The computer is used to provide an indelible weight record using the following software
Program Version Description Legally
relevant
MS DOS 6.0,6.2 or 6.22 Operating system No
MS Windows 3.1 or 3.11 Operating environment No
Application
software
varies with
application
1 Communicates with hopper weighing
application.
2 Provides other functions relevant to the
application.
No
Trade weighing
application
1.xx 1 Communicates with the indicators
2 Sends weight to data archive.
3 Communicates with application
software.
4 Prints tickets
5 Provides secondary weight display.
Yes
Data archive 1.1 Provides indelible weight record storage. Yes
Data archive
retrieval
1.0 Displays indelibly recorded weight records Yes
The version number of the hopper weighing application software can be displayed from a
menu option.
All legally relevant software is protected against intentional changes with common software
tools by the generation of a checksum during initial installation. The checksum is verified
internally every time ‘Windows’ is run. An unsuccessful checksum verification will cause
`Windows’ to terminate.
4.5 Having a computer or other logic device(s) connected to the indicator for
controlling the zero setting devices and optional devices used to control the position of
vehicles on a weighbridge for the purpose of providing driver operated weighbridge facilities.
In this case:
(i) A ticket is issued to the driver.
(ii) A weight indicating device is available to the driver.
(iii) Adequate instructions are clearly visible to the driver together with a contact
point in the event of any problems. Where the weight is below the minimum
load or above the capacity of the instrument a ticket indicating “Invalid
Weight”, or equivalent wording, is issued or printing is inhibited with
alternative instructions available to the driver.
Interlocks may be provided so that when a vehicle is not correctly positioned on the
weighbridge load receptor no ticket is issued.
If any weight data is passed to the computer then the computer linking is as described in
Section 4.
31
4.6 Having a Tulip type DS 5/xxx, DT 5/xxx, or DE 5/xxx computer to which one
or more weighing instruments can be connected. Each connected weighing instrument has its
own identifier which is also used to differentiate between the indelible weight records for
each instrument.
The computer is used to provide an indelible weight record using the following software:
PROGRAM VERSION DESCRIPTION LEGALLY
RELEVANT
MS DOS 6.0, 6.2 or
6.22
Operating system No
MS
Windows
3.1 or 3.11 Operating environment No
Application
software
varies with
application
1 Communicates with hopper weighing
application.
2 Provides other functions relevant to the
application.
No
Trade
weighing
application
software
1.xx 1 Communicates with the indicators.
2 Sends weight to data archive.
3 Communicates with application.
4 Prints tickets.
5 Provides secondary weight display.
Yes
Data archive 1.1 Provides indelible weight record storage. Yes
Data archive
retrieval
1.0 Displays indelibly recorded weight records Yes
The version number of the hopper weighing application software can be displayed from a
menu option.
All legally relevant software is protected against intentional changes with common software
tools by the generation of a checksum during initial installation. The checksum is verified
internally every time ‘Windows’ is run. An unsuccessful checksum verification will cause
‘Windows’ to terminate.
IMPORTANT NOTES
(1) Computer control of set-points in such a manner that the weighing system becomes an
automatic weighing instrument is NOT covered by this type approval.
(2) The condition that the tally roll or ticket records are kept for six months is to ensure
that the weighing results which are printed or recorded correctly are accessible to both parties
concerned.
32
5 TECHNICAL ANNEX
Contents of the technical annex are held with the notified body.
Control documents
Examination documents
Test reports
6 ILLUSTRATIONS
Figure 1 Range of instruments covered by this certificate
Figure 2 Front face of Model L226
Figure 3 Location of approval stickers etc on IP67 enclosures
Figure 4 Location of approval stickers etc on IP41 enclosures
Figure 5 Location of security solder pad on main printed circuit board
Figure 6 FIBC filling system
Figure 7 FIBC filling system with powered roller conveyor
Figure 8 FIBC filling system with powered belt conveyor
Figure 9 Filling spout options
7 CERTIFICATE HISTORY
ISSUE NO. DATE DESCRIPTION
UK 2694 22 December 2003 Type approval first issued
UK 2262 Revision 1 26 June 2003 Revision 1 issued consolidating Additions 1-
90, addition of HBM Z3 load cell to
Section 2.8.5, creation of Section 2.8.48, and
extending the validity for a further 10 years.
UK 2262 Revision 2 16 September 2003 Revision 2 issued. Creation of Section
2.8.49, and change of Emax in the table in
Section 2.8.5.
UK 2262 Revision 3 3 May 2005 Section 2.8.20 modified to include the Avery
T302 load cell.
UK 2262 Revision 4 11 July 2008 Shering SCL40SA added to Section 2.8.4
Note added to Section 2.8.4, stating that load
cells SCL20SA, SCL40SA and CSP-M are
freely interchangeable. Change of
manufacturer name.
UK 2262 revision 5 16 December 2009 Authorised alternative 2.8.51 added.
33
Fig
ure
1 R
ange
of in
stru
men
ts c
over
ed b
y this
cer
tifica
te
Figure 2 Front face of Model L226
35
Figure 3 Location of approval stickers etc on IP67 enclosures
36
Figure 4 Location of approval stickers etc on IP41 enclosures
37
Figure 5 Location of security solder pad on main printed circuit board
38
Figure 6 FIBC filling system
39
Figure 7 FIBC filling system with powered roller conveyor
40
Figure 8 FIBC filling system with powered belt conveyor
Figure 9 Filling spout options
Crown Copyright 2009
NATIONAL WEIGHTS AND MEASURES LABORATORY
(Part of National Measurement Office)
Department for Business, Innovation & Skills