Measurement range of hydrogen concentration, vol. % (ppm)
10-6 - 10-3 (0.01 - 10)
10-4 - 10-2 (1 - 100)
10-2 - 1
Resolution, vol. %
10-6
10-4
10-2
Response time, τ0.9, min, not greater than
10
3
0.1
Relaxation time, τ0.1, min, not greater than
10
3
0.1
Arbitrary measurement error, %
±10
±5
±3
Power voltage, V
=12 or ~220, 50Hz
Dimensions, cm
20×12×5
Weight, kg
1
Sensor lifetime, years
5
Selectivity
Selective to Н2
(has no sensitivity to Н2S, NO2, alcoholes, hydrocarbons, СО2, СО)
The device is equiped by memory for continuous measure storing and serial port RS-232 to access saved data. Every measure consists of measure value, exact date and time of measurement.
VG-3"A" and VG-3"Б" applications are the following: geology (gases foundation), industry (detecting hydrogen solvated in liquids and metals), control of construction's containment (as leakage dectectors), microelectronics (technological processes control) and medicine.
VG-3"В" applications: anticombusting automatic systems (hydrogen and air mix monitoring), rocket engines checkout sequence, hydrogen fueled automobile engine control, control of powerful accumulators, and as leak detectors for inspecting of large volumes (upto 10 m3) and profilecomposite constructions (tube systems).
Low power consumption hydrogen sensor
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