Hydrazine Analyzer Series 2171 Specifications 70-82-03-64 November 2009

Introduction

The 2171 is the most advanced hydrazine instrument

specifically developed for use in continuous measurement

and determination of hydrazine concentration in boiler

feedwater. Common application points in a boiler system for

online hydrazine measurement include: deaerator,

condensate system and boiler feedwater. The 2171

hydrazine analyzer operates automatically and comes

complete with true fully automatic calibration.

Features

Wide Analysis Range (0.01 PPB - 10 PPM)

The fully automatic 1-point calibration Low

maintenance : Autonomous nstrument for up to two

months

Grab sample capability

No change of diffusion tubing

Automatic Range Selection

Process calibration-calibrate to sample

Two 4-20mA isolated current outputs

Protection of sensor from “Hot sample”

Automatic temperature compensation

Automatically stores last 10 calibrations and alarm logs

Rechargeable hydrazine cell

2171 Sensor Unit

The sample flows through the heat exchanger, passes

through constant head (used to stabilize minor changes

in flow rate) and through the three solenoid valves. A

vapor entrainment mechanism adds alkaline buffer vapor

to the sample before it enters the sodium measuring flow

cell and flows to drain. Calibration and grab sample are

controller automatically by the analyzer.

Standard/grab sample liquid is brought into system via

the three 3-way solenoid valves. A thermistor is housed

in the flowcell and is used to detect the temperature of

the sample/standard/ grab sample.

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Hydrazine Analyzer Series 2171 2

Sensor Parts

General Specifications

Performance

Range 0.01 ppb - 10 ppm.

Accuracy ± 5% of reading or ± 0.1 ppb (whichever is greater) within ± 5°C of calibration temperature

Reproducibility ± 5% of reading or ± 0.1 ppb (whichever is greater) at constant temperature

Response Time 90% of 1-10 ppb step: less than 4 minutes 90% of 100-1 ppb step: less than 6 minutes

Temperature Compensation Automatic

pH Compensation Alkaline vapor buffer: 0.88 SG (35% W/V) ammonia above 0.1 ppb sodium 50% diethylamine solution below 0.1 ppb sodium

Single or 2-point calibration Manual and fully automatic calibration. Manual initiated by operator, automatic with programmable frequency in days. No manual changes of standards during calibration.

Current Outputs Two isolated 4-20 mA current (analog) outputs

Digital Outputs Communication interface via RS-232 & RS-485 using MODBUS RTU protocol

Alarms Three voltage-free contacts, alarm points set from transmitter rated at 2A, 250VAC (non-inductive)

Power Wide range of input power supply 90VAC – 250VAC

CE Certification (on request) Meets low voltage and low electromagnetic compatibility directives

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Hydrazine Analyzer Series 2171 3

General Specifications

Operating Conditions

Sample Temperature: 41 – 131 °F (5 - 55°C); Flow 150 - 400 ml/min

Ambient Temperature 32 - 131 °F (0 - 55°C)

Pressure 5 – 30 psig (0.35 – 2.07 bar)

Composition Filter to 60 micron, free of film forming compounds

Mechanical

Construction

Transmitter – high strength ABS, IP65 (NEMA 4x)

Wet section – high strength ABS and sheet metal, all wetted parts stainless steel or PVC, IP55 (NEMA 4)

Dimensions

Height=31”(78.74 cm) including drain

Width=22”(55.88 cm)

Depth=8.5”(21.59 cm)

Mounting

Four key-style holes:

Height=0.86”(2.18 cm), Top Width=0.281”(0.714 cm), Radius=0.280”(0.711 cm)

Horizontal: 14.7”(37.34 cm), Vertical: 11”(27.94 cm)

Weight 40 lbs. (18.14 kg)

Wiring Eight (8) conduit knockouts

Piping Sample Inlet: 1/4"(0.635 cm) OD Swagelok®

Drain: 3/8"(0.953 cm) OD tube

Finish Corrosion resistant

Distance Up to 325 feet (100 meters) on request

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Hydrazine Analyzer Series 2171 4

For More Information

Learn more about how Honeywell’s 2131C Sodium

Analyzer can increase performance, reduce downtime

and decrease configuration costs, visit our website

www.honeywell.com/ps/hfs or contact your Honeywell

account manager.

Honeywell Process Solutions

1860 West Rose Garden Lane

Phoenix, Arizona 85027

Tel: 1-800-423-9883 or 1-800-343-0228

www.honeywell.com/ps

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your

local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage,

Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is

in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular

purpose. Specifications may change without notice. The information we supply is believed to be accurate and reliable as

of this printing. However, we assume no responsibility for its use.

While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the

customer to determine the suitability of the product in the application.

Swagelok is a registered product of Swagelok Co.

Specifications are subject to change without notice.

70-82-03-64 September 2009 © 2010 Honeywell International Inc.

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Hydrazine Analyzer Series 2171C Specifications 70-82-03-65 September 2009

Introduction

The 2171C is the most advanced hydrazine instrument

specifically developed for use in continuous

measurement and determination of hydrazine

concentration in boiler feedwater.

Features

Wide Analysis Range (0.01 PPB - 10 PPM)

Low maintenance

Very low reagent and standard consumption to be

changed only every two months

Self diagnostics

Stable pH through vapor buffering

No change of diffusion tubing

Automatic Range Selection

Process calibration-calibrate to sample

Two 4-20mA isolated current outputs

3 relay contacts for high, low and general alarm

Large, easy-to-read 128 x 64 pixel graphic LCD

display

Internal diagnostics to show probe status

Protection of electrodes from “Hot sample”

Communication interface via RS-232 & RS-485

using MODBUS RTU protocol

User-configurable settings for recorder outputs and

alarm set points

Automatically stores last 10 calibrations and alarm

logs

Wide range of input power supply: 90VAC –

250VAC

Rechargeable hydrazine cell

Hydrazine Analyzer

2171C Sensor Unit

During calibration the 3-way valve is activated, a standard

of known hydrazine concentration passes through a heat

exchanger to equilibrate the solution’s temperature to that

of the sample. The standard then enters the constant head

unit where flow is stabilized. Alkaline buffer vapor is added

via a vapor entrainment mechanism before the standard

enters the hydrazine cell and flows to drain. During normal

operating conditions the standard solution is replaced by

the sample.

Sensor Parts

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Hydrazine Analyzer Series 2171C 2

Flow path during calibration mode and normal operating conditions

General Specifications

Performance

Range 0.01 ppb - 1ppm.

Accuracy ± 5% of reading or ± 2ppb, whichever is greater for concentrations up to500ppb. Less than 10% for concentrations above 500ppb.

Stability ± 5% of reading or ± 02 ppb, whichever is greater

Response Time 90% of a step change in less than 3 minutes

Temperature Compensation Automatic, reduces sample temperature error to less than 0.5% or reading per degree C.

pH Compensation Buffer continuously included into sample flow – Ammonium Hydroxide 0.88 SG (35% NH3)

Calibration Manual calibration.

Current Outputs Two isolated 4-20 mA current (analog) outputs.

Alarms Three voltage-free contacts, alarm points set from transmitter rated at 2A, 250VAC (non-inductive)

Power Wide range of input power supply 90VAC – 250VAC

Operating Conditions

Sample Temperature: 41 – 131 °F (5 - 55°C); Flow 150 - 400 ml/min.

Ambient Temperature 32 - 131 °F (0 - 55°C).

Pressure 5 – 30 psig (0.35 – 2.07 bar)

Composition Sample should be filtered to 60 micron, free of film forming compounds.

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Hydrazine Analyzer Series 2171C 3

General Specifications

Mechanical

Construction

Transmitter: High strength ABS

Wet section: Combination ABS and sheet metal. All wetted parts stainless steel or PVC

Dimensions

Transmitter: Height = 9.45” (24.00 cm), Width = 6.3”(16.00 cm),

‘Depth = 3.54” (9.00 cm)

Wet Section: Height = 18” (45.72 cm), Width =11” (27.94 cm), Depth = 7” 0.583)

Mounting

Four key-style holes: Height = 0.86”(2.18 cm), Top Width = 0.281”(0.714 cm), Radius = 0.280”(0.711 cm)

Horizontal: 12.875” (32.70 cm), Vertical: 9” (22.86 cm)

Weight 23 lbs. (10.44 kg)

Wiring Eight (8) conduit knockouts

Piping Sample Inlet: 1/4"(0.635 cm) OD Swagelok®

Drain: 3/8"(0.953 cm) OD tube

Finish Corrosion resistant.

Distance 325 feet (100 meters)

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Hydrazine Analyzer Series 2171C 4

For More Information

Learn more about how Honeywell’s Hydrazine

Analyzer Series 2171C can increase performance,

reduce downtime and decrease configuration costs,

visit our website www.honeywell.com/ps/hfs or contact

your Honeywell account manager.

Honeywell Process Solutions

1860 West Rose Garden Lane

Phoenix, Arizona 85027

Tel: 1-800-423-9883 or 1-800-343-0228

www.honeywell.com/ps/

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local

sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell

will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is in lieu of all

other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose.

Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this

printing. However, we assume no responsibility for its use.

While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the

customer to determine the suitability of the product in the application.

Specifications are subject to change without notice.

70-82-03-65 September 2009 © 2010 Honeywell International Inc.

HFS Catalog_Without Tab_HighRes.pdf 91 6/8/2011 12:41:08 PM