Specification:
| Humidity sensor |
Capacitive, can take condensation (with sensor coating) |
| Humidity measuring range |
0 to 100 % RH |
| Humidity working range |
10 to 90 % RH: Tabletop and wall-mounted indicator, indoor version
10 to 95 % RH: Wall-mounted and duct version (HVAC)
0 to 100 % RH: Wall-mounted and duct version, rod version |
| Humidity accuracy at 20 °C |
±2 % RH: Indoor version and display unit in the humidity range of 40 to 60 % RH,
wall-mounted and duct version in the humidity range of 0 to 90 % RH,
rod version with Modbus output, (in the remaining range ±3 % RH)
±2.5 % RH: Wall-mounted and duct version (HVAC),
rod version (for DC 24 V, 20 °C and 0.2 m/s)
±3 % RH: Indoor version with CO2 in the humidity range of 30 to 70 % RH,
(in the remaining range ±5 % RH) |
| Temperature dependency |
±0.03 % RH/°C (typical) |
| Sensor coating |
Sensor coating for the humidity sensor is an additional protective coating, which offers better protection from contaminants for the humidity sensor and in many cases allows for longer service life, especially with particularly contaminated or aggressive atmospheres. With the exception of the indoor version, all devices are equipped with this feature for increased protection as standard. |
Temperature (T)
| Temperature sensor |
Platinum-chip temperature sensor Pt1000 according to DIN EN 60751, (passive also Pt100) |
| Temperature measuring range |
0 to 50 °C: Indoor version; wall-mounted and duct version (HVAC) and (CO2)
-5 to +55 °C: Tabletop and wall-mounted indicator
-40 to +80 °C: Wall-mounted and duct version (observe admissible ambient temperature)
-40 to +60 °C: Rod version (-40 to +80 °C with Modbus output) |
| Temperature accuracy at 20 °C |
±0.2 °C: Wall-mounted and duct version, rod version with Modbus output (±0.6 °C in the end range at 20 °C)
±0.3 °C: Indoor version – voltage output, duct version (CO2)
±0.4 °C: Indoor version – current output (±0.7 °C with CO2)
±0.3 °C: Wall-mounted and duct version (HVAC); rod version, tabletop and wall-mounted indicator |
Carbon dioxide (CO2)
| Measuring principle |
NDIR (non-dispersive infrared technology) |
| Sensor |
2-beam infrared cells |
| Measuring range |
0 to 2000 ppm, 0 to 5000 ppm
0 to 10000 ppm (only wall-mounted and duct version) |
| Accuracy at 25 °C and 1013 mbar |
±(50 ppm +2 % of the measured value) for 0 to 2000 ppm
±(50 ppm +3 % of the measured value) for 0 to 5000 ppm
±(100 ppm +5 % of the measured value) for 0 to 10000 ppm |
| Temperature dependency |
2 ppm CO2/°C (typical) |
| Long-term stability |
20 ppm/a (typical) |
| Sampling rate |
Approx. 15 s |
| Response time |
< 195 s (300 s for wall-mounted version) |
| Warm-up time |
< 5 min |
Electrical data
| Voltage supply |
2× DC 1.5 V alkaline batteries: Tabletop and wall-mounted indicator
DC 15 to 35 V, AC 24 V ±20 %: For output of 0 to 10 V / RS485 or CO2 measuring probe
DC 20 to 28 V: For output of 4 to 20 mA
DC 20 to 35 V: For output of 4 to 20 mA (HVAC)
DC 4.5 to 30 V: Only rod version with voltage output
DC 9 to 28 V: Only rod version with current output
DC 4 to 18 V: Only rod version with Modbus output |
| Current consumption |
5 to 15 mA for DC voltage supply (wall-mounted and duct version)
13 to 25 mA for AC voltage supply (wall-mounted and duct version)
1.5 mA for rod version (typical 0.4 mA for Modbus output, sampling rate 1 s)
10 mA plus output current, max. 0.5 A for 0.3 s for CO2 measuring probe |
| Load resistance |
RL < 500 ohm with current output |
| Output signals |
4 to 20 mA and 0 to 1 V, 0 to 10 V, passive also Pt100 and Pt1000
RS485 digital output |
| Electromagnetic compatibility |
EN 61326-1 and EN 61326-2-3 |
| Connection |
Screw terminals max. 1.5 mm2 |
| Connection diagram |
See operating manual |
Case
| Case |
Polycarbonate |
| Protection type |
IP20: indoor version, tabletop and wall-mounted indicator
IP65: wall-mounted, duct and rod version |
| Cable entry |
M16 × 1.5 wall-mounted and duct version |
| Ambient temperature |
-20 to +60 °C: Indoor version, wall-mounted and duct version (CO2)
-5 to +55 °C: Indoor version with LCD display, tabletop and wall-mounted indicator
-15 to +60 °C: Wall-mounted and duct version (HVAC)
-40 to +60 °C: Wall-mounted and duct version (-20 to +50 °C with LCD display)
-40 to +60 °C: Rod version |
| Storage temperature |
-20 to +60 °C: Indoor version
-25 to +60 °C Wall-mounted and duct version (HVAC)
-40 to +60 °C Wall-mounted, duct and rod version |
| Weight |
Approx. 100 g: Indoor version and tabletop and wall-mounted indicator
Approx. 150 g: Wall-mounted version
Approx. 250 g: Duct version
Approx. 150 g: Rod version (1.5 m connecting cable, standard)
Approx. 180 g: Rod version (3 m connecting cable) |
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