Delta OHM HD32.3, Operating Manual

Page: 42 / 74

HD32.3
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V1.4
TP3204S
Natural ventilation wet bulb probe for long-lasting measurements
Sensor type: Pt100
(*) Accuracy: Class A
Measurement range: 4 °C ÷ 80 °C
Connection: 4 wires plus SICRAM module
Connector: 8-pole female DIN45326
Cable: 2 m
Dimensions: L x W x H=140 x 65 x 178.5 mm (res bottle)
Cotton wick length: about 10 cm
Tank capacity: 500 cc
Tank autonomy: 15 days @ t = 40 °C
(**) Response time T
95
15 minutes
TP3204S wet bulb probe with natural ventilation
For the start up go on as indicated below:
-
Remove the sensor cap ( the cap is not screwed ).
- Insert the cotton wick, previously dipped with distilled water, into the temperature probe. The
cotton wick must protrude from the probe for about 20 mm.
- Replace the cap.
- Fill the bottle with 500 cc of distilled water .
- Turn the probe over and firmly screw the bottle to the probe reservoir.
- Turn the probe quickly (to avoid water spillage).
- Secure the probe to the HD32.2.7.1 support by using the two screws at the bottom of the probe.
For measurements in presence of solar irradiation, use the protection shield from solar radiations.
The cotton wick calcifies (becomes hard) with time: replace it periodically.
(*) The probe is calibrated, the calibration data are kept into the SICRAM module memory.
(**) T
95
response time is the time spent to reach the 95% of the final value. The measurement of the response time is
done with a negligible air speed (motionless air).
Screws
Reservoir
Cap
Cotton wick
Shield
Bottle