The RHT-DM transmitters 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. The microprocessor based circuit enables full
configuration of output range when used with the TxConfig PC interface and the
Windows® based software. The humidity signal can be configured to either
relative humidity or dew point output. The RHT-DM model is suitable for duct and
through-the-wall applications.
Features & Specifications:
- Humidity Accuracy: Refer to Figure
01 above
- Humidity Repeatability: ± 1 % RH
- Humidity Non-linearity: < 1 %
RH
- Humidity Stability: < 1 % RH /
year
- Humidity Span: 0 and 100 % RH or
-100 and 103 ºC for dew point
- Humidity Response time: 4 seconds
in slow moving air (63 %)
- Temperature Accuracy: Refer to
Figure on left
- Temperature Repeatability: ±0.1 ºC
- Temperature Response time: up to
30 seconds in slow moving air (63 %)
- Power supply: 12 Vdc to 30 Vdc
(4-20 mA model)
- Outputs: 4-20 mA or 20-4 mA
current, 2-wire loop power supply
- Output Load (RL): 4-20 mA output:
RL (Ohms max.) = (Vdc – 12) / 0.02 let Vdc = Loop power supply (12 to 30 Vdc).
- Channel isolation: the 4-20 mA
outputs
- Reverse polarity protection: YES
- Protection: Electronic circuit
case: IP65; Sensors capsule: IP40
- Operating limits: Sensor and probe
(RHT/DM): see Figure 01
- Electronic circuit: -10 to +65 °C,
0 to 95 % RH.
- Configured via TXConfig & USB
interface - TXConfig USB is required to program or reprogram the units
