- GHM GROUP · BS Bessel 4th order Example: ASK-44A-BNC-V1-10k-BW pi-im-ask_44a_e.odt V1.26-00 1...

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Product information

ASK cards

ASK cards

Product information ASK Cards

2 pi-ask-karten_e V1.25-00

Functions and BenefitsThe modules provide isolated signal conversion and conditioningfor automation and measurement applications. Each module has a3-way isolation and offers flexible interference suppression withplug-in filters. These are designed as 4-pole Butterworth or Besselfilters. Other orders and characteristics are available on request.With isolating and filtering, the modules are best suited for interfer-ence suppression in measurement and control circuits, protectionof SPCs and AD converters, galvanic isolation of line and signal circuits, as well as prevention of ground loops.

Features Applications

System Analog signal isolation Digital signal isolation

Sources Voltage signals Current signals

Industrial measurement and control technology Test bench measurement Isolation of signals up to 2000 V Signal conditioning Signal filtering

Filter CharacteristicsBessel is the better choice for square edge signals like rectanglepulses, as the signal is only marginally derogated:

4- pole Butterworth filters show ringing for square edge signals, which can reach up to 11 %. 4- pole Bessel filters reach only up to0.8 %, but separate not so sharply from passband to stop-band:

Low-noise with a residual ripple of < 2 mVpp and an accuracy of0,1 % makes the modules also best usable for data acquisitionapplications.Signal inputs and outputs are via BNC sockets resp. screw termi-nals on the front panel of the module and/or back panel of a 19“chassis/housing.Customer-specific adaptations can be provided in many ways fore.g. measurement ranges and gains.


3pi-ask-karten_e V1.25-00

Dimensions 19“ plug-in unit Europe card sizeHeight 3 U, Width 5 U, 8 U, Depth 160 mm

Supply voltages 24 V DC oder ± 15 V DC

Environmental temperature

0°C..50°C

Signals Eingang: ± 10 V, ± 20 mAAusgang: ± 10 VInput: ± 10 V, ± 20 mAOutput: ± 10 V, 3-way isolation,Digitized isolation (ASK-DP)Low noise

Electric strength 2000 V DC (1 s) (except ASK-DP)600 Veff (permanent)

Accuracy < 0,1 %

Further data see individual modules

The frequency response of a filter increases with the steepness be-tween passband and stop-band. Here Butterworth has advantagesover Bessel:

General Technical Data

CardInput Output

PageVoltage Current RS 422 Plug-in Filter ± 10 V TTL

ASK-44A 4

ASK-44E 5

ASK-44D 6

ASK-DP 140, DP 200 7

ASK-8 8

ASK Card Housings 9

Plug-in Filter 10

Standard Optional resp. Switchable

Mistakes reserved, technical specifications subject to change without notice.

Module overview

4


pi-ask-karten_e V1.25-00

ASK-44A

ASK-44A

CharacteristicsThis Analog Card offers isolated signal conversion and filtering of 4voltage or current signals. Signal outputs are via connectors at thefront panel, signal inputs are fed through the card frame connector.Optionally signals can be amplified are attenuated.Inputs are on common ground, all outputs are isolated from eachother.The card is also available as a version 2/4A with 2 inputs and 2separate outputs each.

Technical DataSupply voltage 24 V DC ± 10 %Power consumption at nomi-nal voltage(without sensor / without load) 100 mAElectrical isolation(3-way isolation)

2000 V DC (1 s)600 Veff (permanent)

Accuracy < 0.,1 %Cut-off frequency (standard / maximum) 10 kHz / 30 kHz

Linearity (typical) 0.02 %Input – Voltage

Input rangeOptional attenuationOptional gainInput resistance

Input – Current (optional)Input rangeInput resistance

± 10 V± 50 V

± 10 mV..± 10 V10 MΩ

± 20 mA50 Ω

Output – VoltageOutput rangeLoad currentShort proof

± 10 V± 10 mA

yesResidual ripple @

fg = 10 kHz typical < 1 mVeff

Environmental temperature 0..50 °CPlug-in filterStandard frequencies in Hz

10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k, 30 k

Block Diagram

Dimensions19“ Unit, 3 U, 8 U (5 U, depending on version), depth 160 mm

Ordering Code1. 2. 3. 4.

ASK-44A - - - -

1. TerminalBNC BNC socketsPHOE Phoenix screw terminals

2. Input V1 ± 10 V (standard)V2 ± 10 V, ± 50 VV3 ± 1 V, ± 10 VYY Enter non-standard value ± 10 mV..10VA1 ± 20 mA

3. Output filter frequency (Hz)IMP Impedance converterO without filterXXX Enter standard value:10, 30, 50, 100, 300, 500,1k,

3k, 5k, 10kEnter non-standard value: 1..30k

4. Filter characteristicsBW Butterworth 4th orderBS Bessel 4th order

Example: ASK-44A-BNC-V1-10k-BW

pi-im-ask_44a_e.odt V1.26-00 1

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ASK-44A

CharacteristicsThis Analog Card offers isolated signal conversion and filtering of 4voltage or current signals. Signal outputs are via connectors at thefront panel, signal inputs are fed through the card frame connector.Optionally signals can be amplified are attenuated.Inputs are on common ground, all outputs are isolated from eachother.The card is also available as a version 2/4A with 2 inputs and 2separate outputs each.



Accuracy < 0.,1 %Cut-off frequency (standard / maximum) 10 kHz / 30 kHz




± 10 V± 50 V

± 10 mV..± 10 V10 MΩ

± 20 mA50 Ω


± 10 V± 10 mA




10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k, 30 k

Block Diagram



ASK-44A - - - -






Example: ASK-44A-BNC-V1-10k-BW

pi-im-ask_44a_e.odt V1.26-00 1

ASK-44E

ASK-44E

CharacteristicsThis Analog Card offers isolated signal conversion and filtering of 4voltage or current signals. Signal inputs are via connectors at thefront panel, optionally signals can be amplified are attenuated. Sig-nal outputs are fed through the card frame connector.All inputs are isolated from each other, outputs are on commonground.The card is also available as a version 2/4E with 2 inputs and 2separate outputs each.



Accuracy < 0.1 %Cut-off frequency (Standard / Maximal) 10 kHz / 30 kHz




± 10 V± 50 V

± 10 mV..± 10 V1 MΩ

± 20 mA50 Ω


± 10 V± 10 mA




10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k, 30 k

Block Diagram



ASK-44E - - - -






Example: ASK-44E-PHOE-V1-10k-BS

pi-im-ask_44e_e.odt V1.26-00 1

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ASK-44D

ASK-44D

CharacteristicsThe Digital Card offers isolated conversion of RS 422 signals intoa TTL signal. Outputs are via BNC sockets on the front panel: Eachcard has 4 x 2 tracks. Signal inputs are fed through the card frameconnector.



Channels 4 x 2 tracksFrequency Characteristics

Cut-off frequencySignal delaySlope

1 MHz< 0.1 µs

25 nsInput – Voltage

Input rangeInput resistanceInput capacitanceOver voltage protection

RS 422100 kΩ22 pF± 50 V

OutputOutput rangeShort proof

TTLyes

Residual ripple @fg = 10 kHz typical < 1 mVeff

Environmental temperature 0..50 °C

Block Diagram

Dimensions19“ Unit, 3 U, 8 U, depth 160 mm

Ordering Code

ASK-44D

Type (Standard)Converting RS 422 signals into TTL signals

Example: ASK-44D

pi-im-ask_44d_e.odt V1.26-00 1

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ASK-DP 140 ASK-DP 200

ASK-DP 140, DP 200

CharacteristicsThe DP Cards offers digitized electrical isolation of signals. Thesignal is digitized by a 16 bit AD converter, then isolated by a fastoptocoupler, and finally transformed back to its analog value with a16 bit DA converter. Internal sample rates are 140 resp. 200 kHz.This technology assures extremely good characteristic values withregard to offset and accuracy drift, signal-to-noise ratio, and har-monic distortion factor. AD and DA converter pulses of severalcards can be synchronized with a central clock on a master cardversion.

Technical DataDP 140 DP 200

Supply voltage ± 15 V DC ± 10 %Power consumption(without sensor / without load) ISO-DPISO-DP Master

+ 100 / - 70 mA+ 130 / - 75 mA

+ 125 / -90 mA+ 135 / -90 mA

Electrical isolationDCACIsolation resistance

500 V350 V

> 1 x 1012 ΩAccuracy (typical) 0.03 %Cut-off frequency(Standard / maximum) 10 kHz / 20 kHz 27 kHz / 50 kHz

Linearity (typical) < 0.05 %Input

Voltageoptional currentResistanceAC coupling (lower fg)

± 10 V± 20 mA20 MΩ0.1 Hz

± 11 V± 20 mA20 MΩ0.1 Hz

Ranges/ Gain factorsselectable with rotary switch on front panel

10 mV V = 1001,0 V V = 1010 V V = 1

OutputVoltage rangeReverse voltage up toLoad current (short proof)Offset DCOffset drift (V=1) FSR/°CGain drift (V=1) FSR/°C

± 10 V± 20 V

± 12 mA< 7 mV4 ppm9 ppm

± 11 V± 20 V

± 12 mA< 7 mV6 ppm32 ppm

Residual ripple @ V=1fg = 10 kHzfg = 20 kHz

< 0.5 mVeff

< 0.5 mVeff

Signal-to-noise-ratio V=1, 10V=100

> 90 dB> 80 dB

> 90 dB> 77 dB

Crosstalk > 120 dB

DP 140 DP 200Harmonic distortion (< 22 kHz) < 0.1 %Environmental temperature 0..50 °C

Plug-in filterStandard frequencies in Hz

10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k, 20 k, 30 k, 50

k

Block Diagram


Ordering Codes1. 2. 3. 4. 5.

ASK-DP - - - - / - /

1. Sample rate140 Sample rate 140 kHz200 Sample rate 200 kHz

2. Type SynchronizationM Master for synchronization

3. InputV1 ± 10 V (standard)A1 ± 20 mA

4. Output filter frequency (Hz)XXX Enter standard value:10, 30, 50, 100, 300, 500,1k, 3k,

5k, 10k, 30k, 50kEnter non-standard value: 1..50k


Example: ASK-DP-200-V1-30k BS

pi-im-ask_dp_e.odt V1.26-00 1

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ASK-8

ASK-8

CharacteristicsThe ASK-8 Card offers electrical isolation of 8 channels to the out-put side. It can be also used as signal distribution card using oneinput channel only. Inputs and outputs are fed through the cardframe connector. The outputs are on common ground. Optionally 8LEDs for indication of a different cut-off frequency than 5 kHz canbe mounted on the front panel.

Technical DataSupply voltage ± 15 V DC ± 10 %Power consumption at nomi-nal voltage(without sensor / without load) 170 mA

Electrical isolation 2000 V DC (1 s)600 Veff (permanent)

Accuracy 0.03 %Cut-off frequency (Standard / Maximum) 5 kHz / 30 kHz

Linearity (typical) 0.02 %Input

Input range ± 10 VGain (optional) 0.5..2Output

Output rangeLoad currentShort proof

± 10 V± 10 mA


fg = 5 kHzwithout filter

typical < 4 mVpp

typical < 10 mVpp


10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k, 30 k

Block Diagram



ASK-8 - - - -

1. TypeV 2 2x 4 channels isolatedFF Channel assignment firm, gain firmFV Channel assignment firm, gain variableVV Channel assignment variable, Gain variable

2. Measurement ranges G2 Non-standard value: 2

3. Output filter frequency (Hz)XXX Enter standard value:10, 30, 50, 100, 300, 500,1k, 3k,

5k, 10kEnter non-standard value: 1..30k


Example: ASK-8-FF-10k-BW

pi-im-ask_8_e.odt V1.26-00 1

ASK Card Housings

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ASK Card Housings

ASK-Card Housings

CharacteristicsVarious chassis and desktop housings in 19” technology are offeredto accommodate the ISO-Cards. Customer-specific versions canbe provided in many ways for the number of cards and neededpower supplies. A wide-range power supply is available for mobileapplications.

Technical DataSupply voltage 110..230 V AC

9..36 V DC

Power supply Switch-mode power supplyoptional linear power supply

InputOutput

BNC socket or screw terminal onfront panel and/or back paneldepending on type of card

Environmental temperature 0..50 °CDimensionsDesktop housingChassis

28..84 U84 U

Dimensions19“ housing

Width 21, 28, 63, 84 U, for chassis 84 UHeight 3 U (optional 4 U)Depth desktop housing 316 mm (256..496 mm)Depth chassis 340 mm (240..460 mm)

Ordering Code1. 2. 3.

ASK-44G - - -

1. Housing typeVR 19“ chassisVT desktop housing

2. Number of plug-in units)Input resp. output via BNC sockets of back panel 4 for 4 plug-in units 8 for 8 plug-in units10 for 10 plug-in units

3. Type of power supplyB DC 9..36 VN AC 110..230V, 50 Hz

Example: 61-VT-16-ISO-DP-N

1. 2. 3.

ASK-DPG - - -

1. Housing typeVT 19“ desktop housing

2. Number of plug-in units 4 816

3. Type of power supplyB DC 9..36 VN AC 110..230V, 50 Hz

Example: ASK-DPG-16-N

1. 2. 3.

ASK-8G - - -

1. Housing typeVR 19“ chassisVT 19“ desktop housing

2. Number of plug-in units 2 for 2 units 2 U chassis, BNC sockets 8 for 8 units 3 U chassis, BNC sockets16 for 16 units 3 U chassis, BNC sockets

3. Type of power supplyN AC 110..230V, 50 Hz

Example: ASK-8G-VR-16-N

pi-im-ask_gehaeuse_e.odt V1.26-00 1

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Plug-in Filter

Plug-in Filter

CharacteristicsThe filters are designed for flexible interference suppression of sig-nals. The cut-off frequency of a TSA Module can be easily changedby inserting another filter. Besides the frequency another character-istics can be selected as well. By combination of 2 filters, an 8-polefilter can be created.

Technical DataSupply voltage by TSA Module (± 15 V)

Standard frequencies in Hz 10, 30, 50, 100, 300, 500,1 k, 3 k, 5 k, 10 k

Accuracy filter frequency < ± 15 %Residual ripple < 2 mVpp

CharacteristicsLow-pass, High-pass(Band pass)(others on request)

ButterworthBessel

OrderStandardCombination of 2 filters

48

Environmental temperature 0..50 °C

Frequency response Butterworth filter

Frequency response Bessel filter

Dimensions

Ordering Code1. 2.

SFIL - -

1. Filter frequencies (Hz)Enter standard values:10, 30, 50, 100, 300, 500,1k, 3k, 5k, 10kEnter non- standard value: 10..30k


Example: SFIL-20k-BS

pi-im-sfil_e.odt V1.31-00 1

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GHM GROUP International

AustriaGHM Messtechnik GmbHO ce AustriaBreitenseer Str. 76/1/361140 Vienna | AUSTRIAPhone +43 660 [email protected]

Visit us at: www.ghm-group.de

Centers of Competences

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Headquarter

GHM Messtechnik GmbHGHM GROUP CORPORATETenter Weg 2-842897 Remscheid | GERMANYPhone +49 2191 [email protected]

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