ADEV-8866 Thermal Conductivity Hydrogen Analyzer from Italy

The ADEV 8866 thermal conductivity gas analyzer is used to accurately detect changes in a certain component of binary or quasi binary mixed gases, and can detect almost any mixed gas; Hydrogen

Helium, oxygen, carbon dioxide, methane, carbon monoxide, argon, nitrogen and other gases.

Application:
Gas blending
Welding gas
Heat treatment gas
Purity of hydrogen and helium
Food packaging gas
chemical gas

Operating principle
All gases have different thermal conductivity, which we usually refer to as the thermal conductivity (or thermal conductivity coefficient) of gases. Two pairs of matched detectors are installed in a large thermal conductivity detector

The heating wires are placed separately in the sample airflow path and the reference airflow path. The temperature of the heating wire changes with the concentration of the sample gas.

These detectors form a Wheatstone bridge, which is loaded with a constant current source. When the concentration of the measured component in the sample gas changes, the sample gas detector

Detected a change in thermal conductivity of the mixed sample gas, causing an imbalance in the Wheatstone bridge and outputting an electrical signal corresponding to the change in concentration of the measured component. this

The electrical signal is amplified and displayed on a high-definition LED display.

Technical Specifications
Measurement range: 0-100% optional
Resolution:+-0.5%
Accuracy:+-1%
Response time: Reading 90% within 23 seconds
Calibration range: 0-100% of the gas to be tested.
Test sensor type: Stable thermal conductivity measurement principle
Alarm: Two freely adjustable relay alarms that can be set to the full range. Electric shock power 240VAC/30V power supply
Analog output: 0-10V, 4-20mA (0-20mA) independent voltage
Serial port: Can connect to a computer

working conditions
Sample gas pressure: 3000pa
Sample gas flow rate: 0.1-0.2L/min
Sample gas temperature: -10 to 40 ℃
Environmental temperature: -5 to 50 ℃
Power supply: 220VAC
Display: 4-digit high-definition LED screen, 12 digit digital display
Weight: 10kg
Explosion proof grade: EExd IIC T6