9
Maintenance
intervals
based on experience are:
•
•
Maintenance
work
®
ProMinent
Maintenance
ATTENTION
• Service the sensor regularly to avoid overdosing within a
control system, due to incorrect 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).
swimming pools: weekly
spa pools (whirlpools): daily
Check the sensor regularly for dirt, algae and air bubbles. As far as
possible, avoid contamination of the membrane with solid particles,
deposits etc. Eliminate air bubbles by increasing the flow rate.
Check the sensor's reading on the controller regularly, using an appropriate
instrument for measuring bromine (e.g. DPD). If using BCDMH: DPD 4,
DPD 1 in case of DBDMH: DPD 1.
If necessary, recalibrate the sensor (see Chapter 8.2 "Calibration").
If calibration cannot be carried out properly, the membrane cap must be
replaced and calibration must be repeated (see Chapter 6 "Assembly",
8.1 "Run-in time" and 8.2 "Calibration").
Maintenance
41