a. Friendly communication menu allows an intuitive and convenient operation;
b. 320×240 graphic dot-matrix color LCD display is clear to see;
c. Original imported thermal conductance sensor or fuel cell sensor has high measurement accuracy, long calibration cycle, and long service life, etc.;
d. The service life of the sensor (thermal conductance principle) won’t be shortened when the analyzer is turned off;
e. Automatic temperature compensation function could reduce the impact of environmental temperature changes on the measurement value;
f. The instrument allows multi-point fractional liner calibration, meeting the need for an accurate measurement of oxygen content among the full range;
g. 40 thousand pieces of historical data can be stored automatically, enabling user to read historical data freely;
h. The power is supplied in a wide range and could reduce impact from public electricity fluctuation;
i. Embedded mounting is easy and convenient to install and maintain;
j. The principle of thermal conductance and fuel cell are available;
k. The analyzer carries one way of programmable 4-20m, 0-20mA or 0-24mA analog output, one way of 0-5V or 0-10V analog output and two ways of programmable alarm output in dry contact type;
l. RS232 (default) or RS485 digital communication port can be selected according to clients’ requirement, to realize unidirectional or bidirectional communication with computer or other digital communication facilities.
l Measurement Principle: Fuel cell/ thermal conductance (optional)
l Display Mode: 320×240 dot matrix color LCD
l Measurement Range: 0~1%/30%/50%/99.99% H2 (thermal conductance)
0~10/100/2000PPm H2 (fuel cell)
l Measurement Accuracy: ≤±1.0%FS (thermal conductance)
≤±1.5%FS (fuel cell)
l Resolution: 0.01% (thermal conductance)
1PPm (fuel cell)
l Repeatability: ≤±1.0%FS
l Response Time: T90≤60S
l Output Port: 4-20mA (Non-isolated output, load resistance<1KΩ)
0-10V.DC(Non-isolated output, load resistance>10KΩ)
2 ways of programmable alarm output (Dry contact type, maximum load 220V/2A)
1 way of error alarm output
l Communication Mode: RS232 (default) or RS485
l Power Supply: AC88~264V 50/60Hz, power dissipation <25VA
l Environment Temperature: -10℃~+50℃
l Storage Environment Humidity: <90%RH, non-condensing
l Operation Environment Humidity: <100%RH, non-condensing
l Sample Gas Temperature: 0℃~50℃
l Sampling Mode: Gas in
l Sample Gas Flow: 400~600mL/min
l Gas Inlet Pressure: Thermal conductance: 5Kpa≤ relative pressure≤200Kpa (relief valve is recommended if the pressure >200Kpa)
Fuel cell: 5Kpa≤ relative pressure≤100Kpa (relief valve is recommended if the pressure >100Kpa)
l Gas Outlet Pressure: Free venting (under safe conditions)
l Background Gas: No corrosive gas (except for He)
l Size: 145mm×175mm×301mm (H×W×D)
l Installation Hole Size: 135mm×135mm (H×W)
l Sensor Service Life: Thermal conductance >5 years, fuel cell>3 years (under normal conditions of use)
l Gas Circuit Port: NPT 1/8 internal thread
l Instrument Weight: Net weight 2.8Kg
l Installation Method: Embedded mounting
It is widely used in hydrogen content measurement in ammonia decomposition and protective atmosphere equipment and online measurement of hydron content in gas matching of welding and cutting; it is also used in on-line monitoring of hydrogen content in hydrogen purification nitrogen making machine.
l Measurement range
l Measured gas pressure
l Background gas composition