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QUANTICHEM® 9001 COMPACT SERIES

Hydrazine Analyzer
Quantichem® 9071C

The Waltron Quantichem® 9071C Hydrazine Analyzer is the most advanced hydrazine instrument specifically developed for use in continuous measurement and determination of hydrazine concentration in boiler feedwater.

Common Hydrazine Analyzer application points in a boiler system for online hydrazine measurement include: deaerator, condensate system and boiler feedwater.

Download Hydrazine Analyzer 9071C brochure (PDF)

Waltron Quantichem® 9071C Hydrazine Analyzer

Please contact us
for panel mount version.

FEATURES		BENEFITS




Wide analysis range: 0.01ppb – 1ppm		Low reagent and standard consumption



Low maintenance		Minimal maintenance required



Very low reagent and standard consumption to be changed only every two months		Automatic operation



No change of diffusion tubing



Automatic range selection



Process calibration – calibrate to sample



Two 4-20 mA isolated current outputs



Protection of sensor from “Hot Sample”



Automatic temperature compensation



Automatically stores last 10 calibrations and alarm logs



Rechargeable hydrazine cell

Quantichem® 9071C 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.

Flow path during calibration mode and normal operating conditions QUANTICHEM® 9001 SERIES
Hydrazine Analyzer 9071C - flow path during calibration mode and normal operating conditions

GENERAL SPECIFICATIONS

Performance



Range		0.01 - 1ppm



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



Stability		± 5% of reading or ± 2ppb per week,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% of reading per degree C



pH Compensation		Buffer continuously induced into sample flow – Ammonium Hydroxide 0.88 SG (28% to 30% NH3)



Calibration		Manual calibration



Current Outputs		Two isolated 4-20mA 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






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 microns, 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		Transmitter:Height = 10.92” (27.74 cm), Width = 7” (17.78 cm), Depth = 3.54” (8.99 cm) Wet Section:Height = 18.25” (46.36 cm) including drain, Width = 11.25”(28.58 cm),Depth=7.63”(19.38 cm)



Mounting		Four key-style holes: Height = 0.86” (2.18 cm), Top Width = 0.281” (0.714 cm), Radius = 0.28” (0.711 cm) Horizontal:9” (22.86 cm), Vertical:12.875” (32.70 cm)



Weight		23 lbs. (10.44 kg)



Wiring		Eight (8) conduit knockouts



Piping		Sample Inlet: 1/4" (0.635 cm) OD Swagelokt®, Drain:3/8" (0.953 cm) OD tube



Distance		Up to 325 feet (100 meters) on request



Finish		Corrosion resistant

Hydrazine Analyzer Quantichem® 9071C

Hydrazine Analyzer
Quantichem® 9071C