Technical Features
Output signal: 4 ... 20mA or RS485
Filter: pore filter, stainless steel sintered filter
Shell material: 316 stainless steel
Temperature range: -40 ... 80℃
Automatic calibration and heating function
Dew point measurement range: -60 ... +60℃
Typical Applications
Electric power SF6 insulating gas dryness monitoring
Battery process gas dryness monitoring
Technical Data
Input and output
Operating voltage
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24V DC ±20%
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Current output
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4 ... 20mA RL < 500 Ohm
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Power consumption
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<30mA (current output)
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Channel precise: ±0.2%FS
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<15mA (digital output)
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Digital output
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RS485 (Modbus RTU)
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Measurement Parameter
Dew point (frost point)
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Measurement range
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-60 ... +60 ℃ Tdf
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Measurement precise
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±2 ℃ Tdf
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Calibration error
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±0.5℃ Tdf
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τ63 response time
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10mins (in still oil)
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Humiditiy sensitive element
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High molecular polymer humidity-sensitive capacitor
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The above precisions are comprehensive precisions, including repeatability, linearity and hysteresis of the measurement, and can be traced to the CNAS standard.
Technical Specification
Wiring connection
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The maximum cable diameter of the terminal is 1.0mm2
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Operating temperature
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Circuit: -20 ... 60℃
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Shell material
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316 stainless steel
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Probe: -40 ... 80℃
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Cable connector
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5 core threaded joint
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Storage temperature
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-20 ... 60℃
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Probe protection
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Stainless steel pore filter
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Electromagnetic compatibility
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EN61326-1 EN61326-2-3
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Protection grade
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IP65
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Data download:
PTH80 Probe-Type Low Humidity Dew Point Transmitter Product Manual