Combined Temperature/Humidity Sensor in Shelter

The Sensor is used for measurement of the rel. humidity and the air temperature. A capacitive measuring element is used for the measurement of the rel. humidity and Pt 100 is used for the measurement of the air temperature.

Both sensors are located in a measuring probe, protected by a membrane filter. The measuring probe is built in a radiation protection shelter out of a defined white colored plastic.

There is also an electrically ventilated version availabel for measurement of the exact temperature if there is no wind.

Technical Specification

Variations

HUMIDITY SENSOR:
Measuring element: capacitive
Measuring range: 0...100 % rH
Measuring accuracy: ±1.5 % (10…90 % rH at 23 °C)
±2 % (<10 % rH >90 % rH)
Temperature influence TK: <0.05 % rH/K (at 23 °C)
Calibrating accuracy: ±1 % rH
Max. annual drift: 1 % rH / year
Time constant: 0.7 s
Output: 0...1 V corresp. 0...100 % rH
Impedance: >10 kΩ
Response time: T90: <1.5 min.
:
TEMPERATURE SENSOR:
Measuring element: Pt 100 1/3-DIN class B
(acc. DIN IEC 751)
Measuring range: -40...+60 °C
Accuracy (active output): ±0.2 K (at 23 °C)
Temperature influence TK (active output): <0.005 K/K (at 23 °C)
Output: Measuring resistance Pt 100, 4 line
:
GENERAL:
Material of probe: ABS-plastic
Compliances: WMO Guide No. 8/7th ed.
Power supply: 5...30 VDC, < 4 mA
(without electrical ventilation)
Operating temperature range: -40...+75 °C
Min. wind speed at sensor head: 0.5 m/s
Protection, probe: IP30
Protection, connector: IP67
Power requirement 0...10 V/0...1 V: < 3 mA
Load resistance 0...10 V/0...1 V: ≥ 10 kΩ / ≥ 2 kΩ
EMC according: EN 61326-2-3
Dimensions (shelter): ∅ 120 mm,
height approx. 192 mm
Weight (shelter with holder): approx. 780 g
:
FAN:
Versions 3033.1XXX: 12 VDC, approx. 70 mA
Versions 3033.2XXX: 24 VDC, approx. 33 mA
:
MEASURING CONVERTER:
Input: Voltage: 0...1,0 V; meas. range.: 0...100 %
Pt 100, meas. range: -35...+45 °C
Output: 4...20 mA; supply 10...35 VDC,
load depending (500 Ω...1,9 kΩ)
Max. error: ± 0.25 %
Error by: Supply voltage: < 50 ppm/V
Ambient temp.: < 50 ppm/°C
EMV, Emission: EN 50081-1
EMV, Noise: EN 50082-2
Connection: 8-p. connector, IP67 sealed
(plugged)

note 3033.0000Combined Temperature/Humidity Sensor in Shelter, incl. 5 m connection cable
note 3033.0200with measuring converter 4...20 mA, incl. 5 m connection cable
note 3033.1000shelter electrically aspirated 12 VDC, incl. 5 m connection cable
note 3033.1200shelter electrically aspirated 12 VDC, with measuring converter 4...20 mA, incl. 5 m connection cable
note 3033.2000shelter electrically aspirated 24 VDC, incl. 5 m connection cable
note 3033.2200shelter electrically aspirated 24 VDC, with measuring converter 4...20 mA, incl. 5 m connection cable

Combined Temperature/Humidity Sensor in Shelter

The sensors are protected by the shelter and are ventilated constantly. The measuring converter is placed below the shelter.

Temperature and Humidity Sensor on a crossarm

3033 Mounting

Mounting plate