This thermal conductivity gas analyzer measures gas concentration by utilizing the different thermal conductivities of 2 gas components. In the detector, there are reference and measuring chambers in each of which a thin platinum wire is stretched. The reference chamber is filled with reference gas and through the measuring chamber, sample gas is flowed. Each platinum wire composes a bridge circuit in combination with an external fixed resistor, and it is heated by flowing a constant current. Where there is a change in the concentration of the component under measurement, the thermal conductivity of sample gas will change to affect the temperature of the platinum wire in the measuring chamber. The resulting thermal change is taken out as a change in electric resistance, according to which the concentration of measured gas is calculated

H2-200 Process Hydrogen Analyzer

Technical Specifications

Measure Range: 0-30% or 50%~100% H2 FS ranges

Accuracy: <±1.2% of FS range under constant conditions

Application: H2 analysis from 0.01% to 30% or 50.00%~100% in different thermal conductivities of 2 gas components.

Area Classification: General purpose

Alarms: 2 adjustable form C relay contacts non-latching

Compensation: Barometric pressure and temperature; optional heated sample system and sensor housing

Connections: 1/4’’ or 1/8’’ compression tube fittings

Controls: Menu driven calibration, alarm and system functions

Data Acquisition: Selectable data point intervals;

Display: Graphical LCD 128×64MM;

Enclosure: Painted aluminum 144(H)×144(W)×295MM(D)

Flow Sensitivity: 300~600ml/min recommended

Pressure: Inlet - regulate to 0.05MPa~0.35MPa Vent – atmospheric

Power: Universal; 85~264 VAC, 50/60Hz

Response Time: 90% of final FS reading < 50 seconds

Sample System: Flow control; flow indicator

Sensor Life: 36 months at 25℃ and 1 atm

Signal Output: 4-20mA isolated or 0-10V (optional)

Temp. Range: 0~45 ℃

Item#: H2-200