Features
For indoor, air duct, and outdoor mounting
With resistance, current, or voltage outputs
Can be used continuously in areas of high humidity (up to 100 % RH) (duct version)
No voltage feed required for passive devices
In normal circulated air, the sensing element is largely maintenance free
For measuring relative humidity and temperature
Sensing element does not need any maintenance in clean air (no regeneration necessary)
Specification:
| Sensing element |
Plastic, hygrometric
Sensing element is water-resistant and largely maintenance-free |
| Measuring/working range |
0/30 to 100 % RH |
| Measuring accuracy |
±2.5 % RH above 40 % RH
to tolerance characteristic below 40 % RH
TK = 0.1 % RH/°C (referred to 20 °C and 50 % RH) |
| Medium |
Air, unpressurized, not corrosive |
| Permissible air velocity |
Duct version: 8 m/sec max. (15 m/sec with wind shield)
Indoor version: 15 m/sec max |
| Response times |
50 % time: 1.5 min at v = 2m/sec
Stabilization time: 30 to 40 min at v = 2 m/sec |
| Humidity output (passive) |
0 to 100 Ω linear, 2-wire circuit
0 to 200 Ω linear, 2-wire circuit
0 to 1000 Ω linear, 2-wire circuit
100 to 138.5 Ω linear, 2-wire circuit (Pt100 standard values, see Data Sheet 906000) |
| Permissible loading |
1.0 W |
| Electric strength |
42 V |
| Insulation resistance |
10 MΩ |
| Humidity output (active) |
0 to 20 mA, 4-wire circuit
to 20 mA, 2-wire circuit
0 to 10 V, 3-/4-wire circuit |
Temperature
| Sensing element |
Pt100 temperature sensor to EN 60751 |
| Measuring range |
Duct version, passive: -40 to +80 °C (take note of permissible ambient temperature)
Duct version, active: -30 to +100 °C (take note of permissible ambient temperature)
Indoor version, passive: 0 to 60 °C |
| Measuring accuracy |
±0.5 °C |
| Temperature output (passive) |
Pt100 |
Measuring current
or
Current/voltage signal |
1 mA (recommended)
0 to 20 mA, 4-wire circuit
4 to 20 mA, 2-wire circuit
0 to 10 V, 3-/4-wire circuit |
Electrical data for active versions with transmitter
| Supply voltage |
15 to 30 V DC
also 24 V AC ±10 % (for 0 to 10 V output) |
| Burden |
500 Ω max. for current output |
| Load resistance |
10 kΩ min. for voltage output |
| Power consumption |
5 mA per measuring range, 10 mA with AC version |
| Linearity error |
<0.5 % for temperature output |
| Output signals |
0 to 20 mA; 4 to 20 mA; 0 to 10 V |
| Electromagnetic compatibility |
EN 61326 |
Construction
| Housing |
Duct version: ABS plastic fitted with stainless steel probe
Indoor version: ABS plastic |
| Cable entry |
Duct version: via M20 × 1.5 gland
Indoor version: via flush-type box |
| Terminals |
For conductor cross-sections up to 0.5 mm² |
| Protection |
Duct version: IP64
Indoor version: IP20 |
| Ambient temperature |
Duct version: -20 to +60 °C on housing, -40 to +80 °C on probe
Indoor version: 0 to 60 °C |
| Operating position |
probe tube vertically downwards or horizontal, mounted directly through openings in housing or, optionally, by mounting flange. On indoor version unrestricted, the ventilation slots preferably at right angles to the air flow. |
| Weight |
Duct version: approx. 400 g
Indoor version: approx. 200 g |
|