- for humidity and temperature measurement
- with calibrated dModul
- dynamic Mela® humidity sensing element
- output of hx values
- equipped for on-site calibration using buttons and LEDs
- easy to install
General information
The industrial versions DK and DW can be used at operating temperatures between -30 ... 80°C. The integrated hx processor uses the values of the relative humidity and the temperature to calculate the dew point, the enthalpy, the mixing ratio, the
absolute humidity or the wet-bulb temperature. Per the customer’s preference, any two of these are emitted at two analogue outputs using standardized signals.
The core part of the D Series is the digital calibrated dModul, which processes the measurement values of relative humidity and temperature individually. The values are compared to the calibration values stored in the dModul and communicated digitally to the transmitter electronics, where they are processed to standardised current and voltage signals.
The housings of the industrial versions provide protection in accordance with IP 65. Only a single screw is required to close it securely
Technical data
| measuring element | capacitive MELA FE09 |
| output range | 0...100 %RH |
| measuring uncertainty | |
| 10...90 %RH at 10...40°C | ±2 %RH |
| < 10 %RH or > 90 %RH at 10...40°C | ±2.5 %RH |
| influence of temperature <10°C or >40°C | ±0.05 %RH/K |
| Temperature | |
| measuring element | Pt1000 1/3 DIN |
| output ranges | 0...+50°C |
| -30...+70°C | |
| 0...+100°C | |
| further ranges on reques | |
| measuring uncertainty | |
| sensors with active temperature signal | |
| with voltage output at 10...40°C | ±0.2 K |
| with current output at 10...40°C | ±0.3 K |
| influence of temperature <10°C or >40°C | ±0.01 K/K |
| outputs | 0...1 V |
| 0...10 V | |
| 4...20 mA | |
| passive temperature outputs on request | |
| voltage supply | see type survey |