H2 gas transmitter H₂-Sens

semiconductorthermalpressure vessel

Product overview The H₂-Sens is a hydrogen transmitter based on thermal conductivity designed to measure hydrogen from trace levels up to percentage concentration. The instrument provides H2 readings compensated for humidity, pressure and temperature variations. Standard analog outputs are available and an ATEX option (II 2G Ex db IIC T6/T5) can be supplied.

Sensor and calibration The H₂-Sens uses a semiconductor heat thermal conductivity detector (HTC) housed in a measuring cavity with additional sensors for humidity, pressure and temperature. Compensation data can be output as signals. The sensor is factory calibrated and can be recalibrated using a selected calibration gas within the measuring range.

Available versions

• Room control version
• Screw-in sensor
• Pipe-mount sensor
• ATEX in pressure enclosure Ex d

Benefits

• Humidity, pressure and temperature compensated measurement
• Compact form factor
• Cost-effective solution
• Long-life sensing element
• Enclosure protection class IP69
• Fast response time (T90 < 5 s)

Technical data

• Parameters: Hydrogen % / Hydrogen ppm
• Method: Thermal conductivity
• Range: 0 – 5 %; 0 – 10 %; 0 – 100 %
• ATEX: Yes (option II 2G Ex db IIC T6/T5)
• SIL: No
• Accuracy: ±0.5% FSD at constant temperature; ±5% FSD for 0–50 °C
• Resolution: 0.01%
• Response time T90: < 5 s
• Output: 4 – 20 mA / 0 – 10 V
• Supply voltage: 10 – 30 VDC / 1.6 W
• Pressure: 0.6 – 5 bar abs
• Gas temperature: -40 – +85 °C
• Display: Graphical display
• Protection class: IP69
• Connection: Amphenol LTW BD-08BFFA-LL7001
• Dimensions: 95 x 93 x 41 cm
• Weight: 1 kg