7 MAINTENANCE
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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
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.
Maintenance item
Maintenance cycle
When to clean/replace
Applicable
Sensors
Description
3 months 6 months
Yearly
As needed
Adjustment of flow 80 mL/min
○
Mesh filter replacement
○
When dirty,
After the 3-month
calibration
Replace the filter cartridge of the
zero water filter
○
When dirty
Residual-
chlorine
Sensors
Polish the residual-chlorine
sensor
○
When dirty,
When measurement
value is unusual
Replace beads
○
When dirty
Replace the residual-chlorine
sensor
○
When the calibration
alarm is activated,
When measurement
value is unusual
Replace both meshes of bottom
(beads support) and top (for
beads trap) in residual-chlorine
cell
○
Conductivity
sensor
(optional)
Replace the conductivity sensor
○
When the calibration
alarm is activated,
When measurement
value is unusual
pH sensor
(optional)
Replace the pH sensor
○
When the calibration
alarm is activated,
When measurement
value is unusual
Summary of Contents for TW-100
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