Displaying Oxygen Saturation; Maintenance; Cleaning The Sensor Membrane - ProMinent DULCOTEST DO 1-mA-20 ppm Mode D'emploi

Every 2-3 months
Every 6 months
Every 2-3 years
ProMinent ®
Displaying oxygen saturation / Maintenance
9

Displaying oxygen saturation

The DO sensor's concentration value can be converted into oxygen
saturation using the actual water temperature.
To do so go to the DULCOMETER
setting?" menu, "Measurement parameter, temp. of water" (see
operating instructions for the DULCOMETER
ble oxygen). Please note that you will only get accurate oxygen
saturation values if you keep entering the actual water temperature.
10

Maintenance

Clean the sensor membrane (see chap. 10.1)
Calibrate the DO sensor (see chap. 8.3)
Replace the sensor unit (if used under normal operating conditions)
(see chap. 10.2)
10.1

Cleaning the sensor membrane

IMPORTANT
• Do not scratch the sensor membrane.
• If the sensor is pointing upwards for longer than 3 min. during
cleaning it will automatically replace the existing calibration
data with new values. Try therefore to clean the sensor with
it pointing downwards.
• Check that there is clearance all around the gold pin electrode
in the hole in the side of the sensor (membrane rupture
detector).
NOTE
If the sensor is pointing upward during cleaning it will emit a
4 mA signal.
Remove the sensor from the pool.
Rinse the sensor membrane in clean water – if necessary add a
little washing up detergent.
Dry the sensor with a soft cloth.
Place the sensor back into the pool.
®
D1C "Measurement parameters
® D1C, measured varia-
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