The RHT-P10 and RHT-XS transmitter series incorporate the best high accuracy and great stability relative humidity and temperature sensors. They convert the measured values into linear 4 to 20 mA signals and optional 0 to 10 Vdc output can also be offered under request. The microprocessor based circuit enables full configuration of output range when used with the TxConfig PC interface and the Windows® based software.
RHT-P10 model is aimed at humidity and temperature monitoring in pressurized or vacuum systems. Sensor probe in Stainless Steel can be thread mounted in the supplied flange* or directly to the system wall or pipe.
RHT-XS is aimed at humidity and temperature monitoring in non-pressurized systems that require a remote sensor.
*The flange is not attached to the transmitter and must be purchased separately.
- Humidity measurement
Measuring range: Configurable between 0 and 100 % RH or -100 and 103 °C for dew point;
Response time (1/e (63 %)): 8 seconds @ 25 °C (is slow moving air 1 m/s).
- Temperature measurement
Total accuracy: Configurable between -40 and 120 °C;
Response time (1/e (63 %)): up to 30 s (is slow moving air 1 m/s).
- Power supply
4-20 mA model: 12 Vdc to 30 Vdc
0-10 V model: 18 a 30 Vdc / 15 mA max.
4-20 mA or 20-4 mA current, 2-wire loop power supply;
0-10 Vdc tension / 2 mA max.
- Output Load (RL)
4-20 mA model: RL (Ohms max.) = (Vdc - 12) / 0.02 let: Vdc= Power supply in Volts.
0-10 Vdc model: 2 mA max.
- OUT1 output resolution: 0.006 mA (4-20 mA) or 0.003 V (0-10 V).
- OUT2 output resolution: 0.022 mA (4-20 mA) or 0.015 V (0-10 V).
- Isolation between loops
The 4-20 mA outputs are isolated from each other.
The 0-10 V is not isolated from each other.
- Provides protection against power supply polarity inversion
Electronic circuit case: IP65;
Sensors capsule: IP40.
- Cable entrance
Compress fitting PG7.
- Electronic circuit
Electronic circuit (RHT-P10): -10 to +65 °C, 0 to 95 % RH.
Electronic circuit (RHT-XS): -10 to +65 °C, 0 to 95 % RH.