The HT400 relative humidity meter is optimized for the best reliability in industrial applications from -40 °C (-40 °F) up to 200 °C (92 °F).In addition to highly accurate measurement of the relative humidity (RH) and temperature (T), the device calculates all other humidity-related parameters.
This temperature and humidity transmitter is specialized in strict industrial applications with HENGKO RHT series humidity measuring element. It has the advantage of accurately measuring, adapts to a wide temperature range, excellent chemical pollution resistance, steady working, and long service time, etc. 2-pin temperature and humidity 4-20mA current signal output.
Max temperature resistance: 200℃
The chip of the HT400 series temperature and humidity meter has excellent temperature resistance and can work under 200 ℃ for a long time. The special handling of the humidity sensor surface can make sensor keeping working in the chemical contamination. HT400 temperature humidity transmitter is the best choice in the high-temperature harsh environment.
| Humidity range | 0~100%RH |
| Temperature range | -40~200℃ |
| Humidity accuracy | ±2%RH |
| Temperature accuracy | ±0.3℃ |
| Response time | ≤15s |
| Output | 4-20mA current signal /RS485 interface |
| Supply voltage | 24V DC |
Features
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√ Connect method
Split-type design/
Easy to install
①Flange duct
②Threaded pipe
√ Output signal
4-20mA
RS485
√ Stainless steel/
Metal enclouse
Heat-resistant
Waterproof
Resist various environments such as high temperature and humidity, chemical thermoelectric workshop, etc.
Technical Data
0-100%RH
±2%RH（20% RH…80% RH）
±0.1%RH
<0.5%RH
15s
Temperature range
Accuracy(temperature)
Repeatability(Temperature)
Long-term steady(Temperature)
Response time-Temperature
（tau 63%）
-40℃~200℃
±0.2℃ @25℃
±0.1℃
<0.04℃
30s
Parameter calculation
Analog output
Digital interface
Load
Housing material
Displayer working temperature
Install method
Max cable length
Attachment
T, RH, dew point, mixture ratio & absolute humidity for choose
4-20mA
RS485 MODBUS RTU
≤500Ω
ABS
-40~70℃
Thread/Flange
1.5mm²
N/A
Note: The high temperature humidity sensor transmitter will cost about 1 minute to update its working status to ensure stable value measurement.
When Should Select High Temp? Temperature and Humidity Sensor
Common type temperature and humidity sensors usually have a max temperature of 80 Deg.C.(this is our product standard), and when the temperature is over 80℃. for long-term,e.g. 90℃ or over 100℃ or higher temperature. Under such conditions, it is better to select high temp. temperature humidity transmitter.
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