9091 Dissolved Hydrogen Analyzer
Range: 0-10 mg/L
Range: 0 – 1000μg/L
The Waltron 9091/9091C Dissolved Hydrogen Analyzer is the intelligent choice for continuous measurement of dissolved hydrogen in ultrapure water applications. Measurement is based on a highly-accurate electro-chemical process. The 9091’s potentiostatic technology allows for a much faster response time than amperometric or colorimetric systems, ensuring short start-up times, easy operation, and low maintenance costs. Calibration is automated and the sensor can be mounted separately from the transmitter, allowing for remote control away from hazardous areas. Important application points include primary loop of nuclear power plants, boiler feedwater in thermal power plants, denitrification of drinking water, and catalytic reduction of oxygen on noble metal surfaces in water treatment plants. The dissolved hydrogen concentrations can provide quantitative and qualitative evidence of the rate of corrosion corresponding to the buildup or destruction of the protective oxide layer inside pipes and boiler tubes. Options include the online 9091 version and a portable 9091C for online and benchtop applications.
- Fully automatic remote calibration
- Wide range analysis: 0 -1000 μg/L, 0 – 10 mg/L
- Automatic temperature and flow compensation
- Fast response time (t90 = 30 sec)
- No zero point adjustment required
- Withstands pressures up to 8 bar (116 psi)
- Analog and digital outputs
- Low reagent consumption
- Minimal maintenance required
- Automatic operation
PERFORMANCE
Range
0 – 1000μg/L, 0-10 mg/L
Accuracy
+/- 3 % of reading
Response Time
t90 = 30 sec
Temperature Compensation
Automatic
Calibration
Automatic or manual
Current Outputs
0-20mA, 4-20mA (shunt max 500 Ohm)
Digital Outputs
serial interface RS232
Alarms
flow, calibration, power
Power
100VAC – 240 VAC, 50/60 Hz
SAMPLE DELIVERY OPERATING CONDITIONS
Sample Flow
3 – 18 L/h
Sample Temperature
32-140° F (0-60° C)
Ambient Temperature
32-131° F (0-55° C)
Pressure
0.3 – 8 bar (5 – 116 psig)
Recommended Conditioning
Sample should be filtered to 60 microns
Sample Conductivity
≥ 2μS/cm ; salt cell is required if conductivity is less
MECHANICAL
Dimensions
Transmitter: Height=11” (27.7 cm), Width=7” (17.8 cm), Depth=7.75” (19.7 cm) with wall-mount bracket, Depth = 4.5” (11.4 cm) without wall-mount bracket
Wet Section: Height=6” (15 cm), Width=4” (10 cm), Depth=6” (15 cm)
Technical Documents
