Technical Features
Output signal: two ways 4 ... 20mA (two-wire system), 0 ... 1 5 10V or RS485
Output parameter: temperature, relative humidity
Temperature compensation: temperature compensation and calibration in the range of -40 ... 80℃
Filter：plastic film, stainless steel sintering, VHP, PTFE (optional)
Shell material: flame-retardant PC
Typical Applications
Environmental test chamber
Biological incubator
Biopharmaceutical machinery
Handheld meter
Technical Data
Input and output
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Operating voltage
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24V DC ±20%
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Current output
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Two ways 4 ... 20mA RL < 500 Ohm
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Power consumption
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＜ 20mA (current or voltage ouotput)
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Voltage output
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Two ways 0 ... 1/ 5 /10V
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Channel precison: ±0.2%FS
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＜ 6mA (digital output)
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Digital output
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RS485 (Modbus RTU)
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Measurement Parameter
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Relative humidity
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Temperature
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Measurement range
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0 ... 100%RH
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Measurement range
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−40 … +80°C
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Measurement precision
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±2%RH (0 … 90%RH & 20℃)
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Measurement precision
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±0.2°C
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Calibration error
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±0.5%RH (0 … 90%RH)
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Calibration error
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±0.1°C (20°C)
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±0.8%RH (40 … 95%RH)
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τ63 response time
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30s (probe fitted with stainless steel sintered filter)
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- -
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- -
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Humidity sensitive element
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High molecular polymer humidity-sensitive capacitor
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Temperature sensitive element
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Pt1000 (Grade 1/3B, DIN EN 60751)
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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
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Wiring conneciton
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Four core thread joint or four core wire 0.5mm2
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Probe protection
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Plastic film, stainless steel sintering, VHP, PTFE
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Shell material
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PC (flame-retardant grade UL94-V0)
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Protection grade
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IP65
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Operating temperature
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-20 ... 80℃
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Electromagnetic compatibility
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EN61326-1 EN61326-2-3
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Storage temperature
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-20 ... 60℃
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Data download:
PTH20 Probe-Type Temperature and Humidity Transmitter Product Manual