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