Running In; Calibration - ProMinent DULCOTEST DO 1-mA-20 ppm Instrucciones De Servicio

ProMinent ®
8.2

Running in

Hold the sensor downward (as shown in Fig. 14) in the atmosphere
until the measured variable displayed on the DULCOMETER
has stabilised. A 2 minute run-in period is usually sufficient.
The sensor is now ready for calibration.
DO 1
Fig. 14: Positions of DO sensors during run-in
8.3

Calibration

IMPORTANT
• The sensor should not be subjected to direct sunlight or other
heat source during calibration. This will prevent temperature
compensation.
• The sensor is calibrated in the normal atmosphere (oxygen
content = 20.9 vol. %).
• Observe relevant national legislation when calibrating, e.g.
in Germany EN 25814.
NOTE
• Do not calibrate the sensor with a DULCOMETER
controller for longer than 10 min. The D1C will otherwise
display an error (error text "O
• If you cancel the calibration within 3 min. the sensor will
continue to operate with the previous calibration values.
Clean the sensor (see chap. 10.1)
Check whether the DULCOMETER
in the normal atmosphere.
Commissioning
DO 2
input ≤ 4 mA").
2
® D1C displays a stable value
®
D1C
®
D1C
41