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Hydrazine Analyzer Quantichem® 9071C
QUANTICHEM® 9001 COMPACT SERIES
QUANTICHEM® 9001 COMPACT SERIES
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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. Please contact us for panel mount version of the Hydrazine Analyzer. |
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| FEATURES | BENEFITS | |
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| Wide analysis range: 0.01ppb-1ppm | Low reagent and standard consumption | |
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| Low maintenance | Minimal maintenance required | |
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| Very low reagent and standard consumption to be changed only every two months | Automatic operation | |
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| No change of diffusion tubing | ||
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| Automatic range selection | ||
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| Process calibration – calibrate to sample | ||
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| Two 4-20 mA isolated current outputs | ||
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| Protection of sensor from “Hot Sample” | ||
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| Automatic temperature compensation | ||
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| Automatically stores last 10 calibrations and alarm logs | ||
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| Rechargeable hydrazine cell | ||
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| 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. |
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| GENERAL SPECIFICATIONS | ||
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| Performance | ||
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| Range | 0.01 - 1ppm | |
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| Accuracy | ± 5% of reading or ± 2ppb,whichever is greater for concentrations up to 500ppb. 10% or better for concentrations above 500ppb | |
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| Stability | ± 5% of reading or ± 2ppb per week,whichever is greater | |
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| Response Time | 90% of a step change in less than 3 minutes |
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| Temperature Compensation | Automatic, reduces sample temperature error to less than 0.5% of reading per degree C | |
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pH Compensation |
Buffer continuously induced into sample flow – Ammonium Hydroxide 0.88 SG (28% to 30% NH3) |
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| Calibration | Manual calibration |
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| Current Outputs | Two isolated 4-20mA current (analog) outputs | |
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| Digital Outputs | Communication interface via RS-232 & RS-485 using MODBUS RTU protocol | |
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| Alarms | Three voltage-free contacts, alarm points set from transmitter rated at 2A, 250VAC (non-inductive) |
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| Power | Wide range of input power supply 90VAC – 250VAC | |
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| CE Certification (on request) | Meets low voltage and low electromagnetic compatibility directives | |
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| Operating Conditions | ||
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| Sample | Temperature: 41 – 131° F (5 – 55° C); Flow 150 – 400 ml/min | |
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| Ambient Temperature | 32 – 131° F (0 – 55° C) | |
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| Pressure | 5 – 30 psig (0.35 – 2.07 bar) | |
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| Composition | Sample should be filtered to 60 microns, free of film forming compounds | |
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| Mechanical | ||
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| 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) |
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| Dimensions | Transmitter:Height = 10.92” (27.74 cm), Width = 7” (17.78 cm), Depth = 3.54” (8.99 cm) |
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| 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) | |
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| Weight | 23 lbs. (10.44 kg) | |
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| Wiring | Eight (8) conduit knockouts | |
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| Piping | Sample Inlet: 1/4" (0.635 cm) OD Swagelokt®, Drain:3/8" (0.953 cm) OD tube |
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| Distance | Up to 325 feet (100 meters) on request | |
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| Finish | Corrosion resistant | |
