Beijing york instrument
Phymetrix Moisture Measurement Innovation at Work
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Nanopore Sensor , Portable Dew Point Meter , Repeatability 0.8 ℃
The nanopore sensor utilized in this analyzer measures the amount of water vapor molecules that have entered its pores.This amount is directly proportional to the partial water vapor pressure in the gas surrounding the sensor,and the partial water vapor pressure is dependant on the water vapor content of the gas and the total pressure of the gas,Thus to compute the water vapor content of the gas under measurement the analyzer has to “know”the total pressure of the gas.Since there is no built-in pressure sensor,the user should enter the total pressure into the analyzer,this can be easily done by entering atmospheric pressure(the analyzer default setting)and measuring at atmospheric pressure by allowing the sample cell outlet(exhaust)port to vent without restrictions.
The DPT-820 can be mounted directly Connections for inlet and outlet of the gas being measured are made through a variety of available options e.g.1/8”or 1/4”Swagelok tubing compression fittings
The DPT-820 is 4/20mA loop powered analyzers.The analyzer will operate from 12VDC to 30VDC power and will draw 4mA to 20mAdepending on the measurement and the analog output settings(factory default 4mA=-110 and 20mA=+20).
| Display | DP (℃), PPMV, RH %, either one |
| Power supply | DC12V - DC30V |
| Output | 4-20 mA |
| Sensor | Resistance capacity |
| Alarm | Colors: Red: High alarm Pink: low alarm White: test in range |
| Range | 110 ℃ ~ + 20 ℃ |
| Accuracy | 2 ℃(temperature corrected) |
| Repeatability | 0.8 ℃ |
| Response time | T95 = 3 min |
| Sampe flow | > 1LPM |
| Dimensions | 2. include sample chamber: 4.331″*2.362″*4.760″(L*W*H) (110 mm* 60mm * 120.9 mm)
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| Weight | Transmitter$sensor:14.11 oz.(0.4Kg) Sample chamber:29.98 oz.(0.85Kg) |
| Explosion-proof grade | IP67 (Designed) |
| Inlet&Outlet | 1/8 NPT 316L-SS |
| RS485 output | Modbus provide PC software (optional) |