The HG808-T is an industrial-grade super high temperature 200℃, humidity, and dew point transmitter designed for harsh environments with high temperatures.
In addition to measuring and transmitting temperature and humidity, the HG808-T calculates and transmits the dew point, which is the temperature at
which air becomes saturated with water vapor and condensation begins to form.
Here’s a breakdown of the key features:
*Temperature range: -40 ℃ to 200 ℃ (-40 °F to 392 °F)
*Probe: The transmitter is equipped with a high-temperature probe that is waterproof and resistant to fine dust.
*Output: The HG808 offers flexible output options for temperature, humidity, and dew point data:
Standard industrial interface RS485 digital signal
4-20 mA analog output
Optional: 0-5v or 0-10v output
*Display: The transmitter has an integrated display for viewing temperature, humidity, and dew point readings.
*Connectivity: The HG808 can be connected to various industrial control systems, including:
On-site digital display meters
PLCs (Programmable Logic Controllers)
Frequency converters
Industrial control hosts
✔ industrial sensors for applications up to 200°C
✔ IP 65
✔ for measuring relative humidity and temperature
✔ with porous metal humidity sensing element
✔ with current or voltage output
Designed for use in industrial process automation, the sensors of the HG808-T relative humidity temperature sensor can be installed in virtually any position. The robust devices are available to be mounted in ducts, on walls, or are available with a stainless steel probe that can be up to 5 m away from the output electronics. Depending on the application, we either recommend using transmitters with exchangeable or permanently assigned probes. The type of filters and filter materials can be adapted to suit the respective protection category required (up to IP65).
All devices work with an internal processor which uses the measured values for relative humidity and temperatures to also calculated absolute humidity, mixture ratio (water/air) or the dew point (can choose). Digitalization of the signal processing allows the measurement accuracy for humidity to reach excellent values of ±2.0% RH, and with the platinum resistance sensor, the accuracy of the temperature measurement reaches tolerances of ±0.3℃. Depending on the individual design, the sensors can be used at temperatures of between 0 °C and +200 °C and at pressures of up to 10 bar in non-corrosive air.
Here’s a specification details for the HG808-T series Humidity Transmitter :
| Category | Specification |
|---|---|
| Temperature Range | -40 ~ +200°C |
| Humidity Range | 0 ~ 100% RH (Recommend < 95% RH) |
| Temperature Accuracy | ±0.1°C (@ 20°C) |
| Humidity Accuracy | ±2% RH (@ 20°C, 10 ~ 90% RH) |
| Power Supply | DC 10V ~ 28V |
| Power Consumption | < 0.5W |
| Analog Outputs | Humidity + Temperature: 4~20mA / 0-5V / 0-10V (one out of three) |
| RS485 Digital Output | Temperature, humidity, dew point, PPM (read simultaneously) |
| Resolution Ratio | 0.01°C / 0.1°C (optional) 0.01% RH / 0.1% RH (optional) |
| Baud Rate | 1200, 2400, 4800, 9600, 19200, 115200 (default: 9600 bps) |
| Acquisition Frequency | Fastest response: 1 second; other settings per PLC |
| Byte Format | 8 data bits, 1 stop bit, no check |
| Pressurization | 16 bar |
| Working Temperature | -20°C ~ +60°C, 0% RH ~ 95% RH (Non-condensation) |
| Probe Type | Split type: Probe 3 –Split type ：3A# / 3B# Probe 5 – Pipeline ：5A# / 5B# Probe 6 – Split type ：6A# / 6B# |
Features
√ IP65
316L stainless steel material
Damp proof, condensation, dust, high temperature, rain and snow and other harsh environment, it can also work normally
We offer 6 types of probes for the HG808 Humidity Transmitter, with each type available in both A and B versions,
providing a total of 12 probes for various application options.
Technical Data
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