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7
MAINTENANCE
Perform calibration and regular checks of this device to maintain normal operation and
performance.
For calibration of this device, see "4 CALIBRATION" (page 17).
7.1
Maintenance Items
Maintenance item
Applicable
Sensors
Adjustment of flow 80 mL/min
Mesh filter replacement
Replace the filter cartridge of the
zero water filter
Polish the residual-chlorine
sensor
Replace beads
Residual-
Replace the residual-chlorine
chlorine
sensor
Sensors
Replace both meshes of bottom
(beads support) and top (for
beads trap) in residual-chlorine
cell
Conductivity
sensor
Replace the conductivity sensor
(optional)
pH sensor
Replace the pH sensor
The maintenance cycle in the table is shown when using the device in the normal operating
conditions. Depending on the operating conditions, the optimum maintenance cycle may be
different; observe the condition of the device after operating for a while and adjust the
maintenance cycle accordingly.
Description
3 months 6 months
Maintenance cycle
Yearly
○
○
○
○
○
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7 MAINTENANCE
When to clean/replace
As needed
○
When dirty,
After the 3-month
calibration
When dirty
When dirty,
When measurement
value is unusual
When dirty
○
When the calibration
alarm is activated,
When measurement
value is unusual
When the calibration
alarm is activated,
○
When measurement
value is unusual
When the calibration
alarm is activated,
When measurement
value is unusual
135
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