The RHT-WM and RHT-DM 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 Windowså¨ based software.
The humidity signal can be configured to either relative humidity or dew point output.
The RHT-WM model is dedicated to wall mounted applications and the RHT-DM version is suitable for duct and through-the-wall applications.
- Power: from 12 Vdc to 30 Vdc (model 4-20 mA) or 18 to 30 Vdc (model 0-10 V)
- Output
- Two-wire loop powered 4-20 mA or 20-4 mA
- Voltage output: 0-10 Vdc (optional)
- Isolation between outputs
- Isolated 4-20 mA outputs
- Non-isolated 0-10 Vdc outputs
- Output load (RL)
- Model 4-20 mA: RL (max. in Ohms) = (Vdc åÐ 12) / 0.02
where: Vdc=power voltage in Volts
- Model 0-10Vdc: 10 Kohms Minimum
- Model 4-20 mA: RL (max. in Ohms) = (Vdc åÐ 12) / 0.02
- Internal protection against reversed voltage wire polarity
- Cable input: PG7 cable gland
- Operational Limits
- Electronic Module: -10 to +65°C, 0 to 95%RH
