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o
Minent
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8.8.4
DULCOMETER
®
D1C Measured Variable Chlorine and DULCOTEST
®
CTE
Sensor for Total Chlorine, Maintenance
Controller
The
DULCOMETER
®
controller type D1C for the measured variable total chlorine is maintenance-
free.
Sensor
IMPORTANT
• Service the sensor regularly to avoid overdosing within a control system, due to
in cor rect measured value.
• Observe the current national regulations for maintenance intervals.
• Do not touch the electrodes or allow them to come into contact with greasy substances.
• Never attempt to clean the membrane with acid/alkaline solutions, cleaning reagents or
mechanical aids (brushes or similar).
Maintenance interval
based on experience are:
• Potable, industrial, process and cooling water: depending on the specifi c conditions
(1-4 weeks)
• swimming pools:
weekly
• spa pools (whirlpools):
daily
Maintenance
Work
Check the sensor regularly for dirt, algae and air bubbles. As far as possible, avoid contamina-
tion of the membrane with solid particles, deposits etc. Eliminate air bubbles by increasing the
fl ow rate.
Check the displayed sensor value on the controller regularly according to the DPD-4 method
using an appropriate chlorine measurement kit.
If necessary, recalibrate the sensor.
If calibration cannot be carried out properly, the membrane cap must be replaced and cali bra-
tion must be repeated.
Total Chlorine
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