| Measured Variables |
| Relative Humidity |
| Measuring Range |
0 – 100% RH |
Accuracy with regard to works standards, including non-linearity,
hysteresis and repeatability |
At 20°C: ±1% RH (0 – 90% RH); ±1.7% RH (90 – 100% RH)
At -20 to +40°C: ±(1.0 + 0.8% of measurement) % RH
At -40 to -20°C, 40 to 180°C: ±(1.5 + 1.5% of measurement) % RH |
| Uncertainty of factory calibration1(20°C) |
For 0 – 40% RH: ±0.6% RH
For 40 – 97% RH: ±1.0% RH |
| Sensors |
For general applications: HUMICAP® 180R
With heated probe: HUMICAP® 180RC |
| Response time (t0.9) at 20°C in stationary air |
With grid filter: 8sec
With st. steel mesh filter: 20sec
With sintered filter: 40sec |
| Temperature |
| Measuring range for type |
907023/331: -40 to +60°C
907023/333: -40 to +80°C/+120°C
907023/334, 907023/335, 907023/337, 907023/338: -70 to +180°C |
| Temperature Sensor |
Pt100 to EN 60 751 |
| Accuracy at 20°C |
±0.2°C
Accuracy over the entire range |
| Derived variables (option) |
dew point temperature (Td), mixing ratio (x), absolute humidity (a), wet
bulb temperature (Tw), enthalpy (h), water vapor pressure (pw) |
| Operating Conditions |
| Operating temperature range at |
Probes: as measuring ranges
Electronics: -40to +60°C
With LC display: 0 to 60°C
907023/334: 0 – 10MPa (0 – 100bar)
907023/338: 0 – 4MPa (0 – 40bar)
907023/333, 907023/335, 907023/337: vapor-tight |
| EMC |
as per EN 61 326-1:1997
+ Annex 1:1998 + Annex 2:2001 |
| Inputs/outputs |
| Operating voltage range |
10 – 35V DC, 24V AC
- with optional supply module: 100 – 240V AC 50/60Hz |
| Current drawn (20°C, Ub = 24V DC) |
- When used with RS232C: ≤25mA
- Output 2x 0 – 1V / 0 – 5V / 0 – 10V: ≤25mA
- Output 2x 0 – 20mA: ≤60mA
- With display and background lighting: 20mA
- During sensor cleaning: 110mA max.
- With probe heating (907023/337): 120mA |
| Analog outputs (2 are standard, 3rd is optional) |
- Current output: 0 – 20mA, 4 – 20mA
- Voltage output: 0 – 1V, 0 – 5V, 0 – 10V |
| Accuracy of the analog outputs |
At 20°C: ±0.05% of full scale |
Temperature drift of the
analog outputs |
±0.005% of full scale |
| External loads |
- Burden for current outputs: <500Ω
- Voltage output 0 – 1V: >2kΩ
- Voltage output 0 – 5V / 0 – 10V: >10kΩ |
| Maximum core cross-section |
0.5mm2 |
| Serial interface |
RS232C, RS485 (option) |
| Relay outputs (option) |
0.5A, 250V AC |
| Digital display |
LCD with background lighting,
graphical trend display of all
variables |
| Menu languages |
English, German, French,
Spanish, Japanese, Swedish,
Finnish |
| General data |
| Connection options |
- Cable gland: M 20x1.5 for 8 –11mm dia. cable
- Conduit fitting (option): M 20x1.5 / NPT 1/2"
- Connector: M 12, 8-pole, type RKC8/9.M12
- 5m connecting cable: M 12, 8-pole, type RKT8-282/5M |
| Probe cable diameter |
- 907023/333: 6.0mm
- All other probes: 5.5mm
Housing material: G-AlSi 10 Mg (DIN 1725)
Enclosure protection: IP65
Weight: 1 to 2 kg, depending on the version |