9091C 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.

 Portable system – Model 9091C available


 Fully automatic remote calibration


 Wide range analysis: 0-1000 μg/L, 0-10 mg/L, 0-100 cc/kg


 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


 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=5.5” (14 cm), Width=7” (18 cm), Depth=7” (18 cm)

Wet Section: Height=6” (15 cm), Width=4” (10cm), Depth=6” (15 cm)


Technical Documents