JY-EC300 Portable Intrinsically Safe Explosion-Proof Hydrogen Analyzer It is applied in hydrogen content measurement in ammonia decomposition and protective atmosphere equipment which require explosion-proof level of Ex ia IIC T4 Ga，online measurement of hydrogen content in matching gas for welding and cutting and online monitor of hydrogen content in hydrogen purification nitrogen making machine.
a. The segment code display mode is clear and intuitive, and the operation of the instrument is easy and convenient;
b. Original imported thermal conductance sensor has high measurement accuracy, long calibration cycle and stable performance, etc.;
c. 5000 pieces of historical data can be stored automatically, and data can be read through matching upper computer;
d. The menu lock function could prevent mis-operation, which may change instrument parameters and affect its performance;
e. Automatic temperature compensation function could eliminate the impact of environmental temperature changes on the measurement accuracy;
f. When power is off, the service life of the sensor will not be influenced;
g. It is easy to operate and maintain, and has a long service life.
l Measurement Principle: Thermal conductance
l Display Mode: Segment code screen
l Measurement Range: 0.01%~30.00%/50.00%/99.99% H2
l Measurement Accuracy: ≤±1.0%FS
l Resolution: 0.01%
l Repeatability: ≤±1.0%FS
l Response Time: T90≤30S
l Communication Mode: RS485
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: 1.5~2L/min
l Gas Inlet Pressure: 5Kpa≤ relative pressure≤200Kpa (relief valve is recommended if the pressure >200Kpa)
l Gas Outlet Pressure: Free venting (under safe conditions)
l Size: 274mm×213mm×100mm (H×W×D)
l Sensor Service Life: >5 years (under normal conditions of use)
l Battery Capacity: two 3.6V/19Ah disposable lithium batteries (type: SB-D02)
l Battery Life: >6 months (changeable, not chargeable)
l Gas Circuit Port: NPT 1/8 internal thread
l Explosion-Proof Level: Ex ia IIC T4 Ga
l Certificate Number: CNEx19.6295X
l Instrument Weight: 3.6Kg
l Installation Method: Portable
It is applied in hydrogen content measurement in ammonia decomposition and protective atmosphere equipment which require explosion-proof level of Ex ia IIC T4 Ga，online measurement of hydrogen content in matching gas for welding and cutting and online monitor of hydrogen content in hydrogen purification nitrogen making machine.
l Measurement range
l Measured gas pressure
l Background gas composition
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