Technical features:
Suitable for moisture analysis of corrosive gases and flammable gases
Absolute measurement method, no need for recalibration, regenerate sensor electrode film layer if necessary
Ultra fast response
high sensitivity
Fully microprocessor controlled
Automatic range switching
Instrument startup self-test function
Compliant with NAMUR standards

Analysis principle:
The pentoxide phosphorus sensor uses the principle of electrolyzing water molecules into hydrogen and oxygen. This sensor consists of a glass cylinder and two parallel electrodes. The electrode material is selected according to the specific application (usually made of platinum or rhodium metal wire), and a thin layer of phosphoric acid H3PO4 film is coated between the two electrodes. The electrolysis current appearing between the two electrodes decomposes the water in the acid into H2 and O2, and the final product of this process is pentoxide. P2O5 is a highly hygroscopic substance, so it absorbs water from the sample gas. Through a continuous electrolysis process, a balance is established between the water content of the sample gas and the water content after electrolysis. The electrolysis current is proportional to the water content in the sample gas, and the signal passes through the instrument. Signal amplifier processing, followed by display and data readout. This principle is suitable for analysis Xe、Ar、Kr、He、D2、F2、N2、H2、O2、O3、HBr、PH3、SF6、Freon、C2H2、CO2、CH4、Natural gas， Especially suitable for measuring trace moisture in high-purity acidic gases such as Cl2, HCl, SO2, H2S, etc. (except for a few gases that undergo chemical reactions with phosphoric acid).

Technical parameters:
Range: 0-10ppm/100ppm/1000ppm/2500ppm (automatic range)
Accuracy: 1% of the full range
Sensitivity: 0.1% of the full range
Analog output: 1 channel of 0/4-20mA or 0-10V analog output
Alarm output: 1 alarm relay
Display: LCD display, backlight switchable
Sample gas flow rate: 20Nl/h
Suggested pressure: 0.1-0.5 barg
Sample gas temperature: 5-150 ℃
Response time:<1 second
T50 response:<8 seconds
Environmental temperature: 5-65 ℃
Cable: 3 meters standard, up to 300 meters optional
Power supply: built-in rechargeable lithium battery or external mains power 80-230VAC@50-60Hz
Dimensions: Width 363mm x Height 115mm x Depth 377mm
Weight: Approximately 6Kg