Technical data
0 ...+100 °C
-20 ... +80 °C
-30 ... +70 °C
-40 ... +60 °C
-40 ... +85 °C (RS232 or Modbus)
(Modbusversion)
Temperature (°C)
Dew point temperature (°C)
Enthalpy (kJ/kg)
Mixing ratio (g/kg)
Absolute humidity (g/m³)
Wet-bulb temperature (°C)
0...5 V
0...10 V
4 ... 20 mA
RS232, RS485 Modbus
9 ... 30 V DC
13 ... 30 V DC / 24 V AC ±10%
12 ... 30 V DC
Downloads
Accessories
LW - wall mounted
Humidity and temperature transmitter optimised for HVAC
Features
- Operating temp. up to 80 °C
- Accuracy H.: ±3 % RH / 30…80 % RH
- Accuracy T.: ±0,8 K
- With analogue output
Options
Humidity and temperature transmitter optimised for HVAC – LW, economical transmitters – L-series is primarily optimized for ambient room conditions. It is very suitable to monitor energy costs in HVAC and building automation applications.
Moderate industrial conditions
Thanks to its high quality manufacturing, the LW transmitter can also be used in moderate industrial conditions. Optionally, it can be equipped with a PTFE filter with an IP65 degree of protection. A extra sealing can protect against increased requirements (e.g. condensation). It also can be made resistant to vibrations.
With analogue output
The transmitters with analog output have a very stable current or voltage signal.
Hx-values via Modbus
The hx values can be read using the RS485 Modbus RTU protocol. The measured values of relative humidity and temperature are used to calculate enthalpy, absolute humidity, air/water mixing ratio or wet bulb temperature.
Equipped with the highly dynamic capacitive MELA® sensor element for the entire range of relative humidity measurement.
