The Relative Humidity and Temperature Professional transmitters RHT-WM and RHT-DM are microprocessed based instruments that incorporate high accurate and stable sensors whose information is converted to linear 4-20 mA or 0-10 Vdc.
Using the digital communication interface, the transmitter parameters can be configured to tailor a particular application.
The RHT-WM model is intended for wall mounting. The RHT-DM comes with a probe tip for duct mounting.
SPECIFICATIONS
Loop powered 4-20 mA or 20-4 mA outputs.
Voltage outputs 0-10 Vdc (optional). Power dispensing: 12 to 30 Vdc (4-20 mA output) or 18 to 30 Vdc (0-10 V output).
Channel isolation: the 4-20 mA outputs are isolated from each other. The 0-10 V outputs share a common ground.
Reverse polarity protection: YES.
Cable entrance: compress professional fitting PG7.
Operating limits:
Sensor e probe (RHT-DM): -20 to 80 °C, 0 to 100 % RH.
Electronic circuit: -10 to +65 °C, 0 to 95 % RH.
RH channel:
Accuracy: ±1,5 % RH @ 25 °C, from 20 to 80 % RH.
Repeatability: ±1 % RH.
Hysteresis: ±1 % RH.
Span: any value between 0 and 100 % RH or –40 to 100 °C for dew point.
Temperature channel:
Accuracy: ±0,5 °C @ 25 °C. Maximum ±2 °C from -40 to 80 °C.
Repeatability: ±0.1°C.
Span: between -40 and 120 °C.
