4 CALIBRATION
18
Optional item
Perform calibration at system startup and every three months in the following order:
Common zero-calibration
→
pH (optional)
→
color
→
turbidity
→
conductivity (optional)
→
residual chlorine.
Replace the mesh filter after a three-month calibration.
Water pressure and water temperature (optional) are already calibrated before shipment,
so additional calibration is unnecessary. The calibration procedure is given as a
reference. Only when an abnormality occurs, check that the calibration value is close to
the manually-analyzed value.
Adjustment calibration of pH using sample water is recommended every month.
Calibration pattern
Calibration cycles
Procedure
reference
Measurement
item
System
startup
Daily
Every 3
months
Abnormality
occurrence
pH
pH 6.86 calibration and pH
9.18 calibration
◎
◎
◎
Adjustment calibration using
sample water
(Zero calibration)
○
○
○
Conductivity
Span calibration
◎
◎
◎
Individual zero-calibration
◎
Adjustment calibration using
sample water
(Span calibration)
○
○
○
Water
temperature
Adjustment calibration using
sample water
(Zero calibration)
(Check
only)
Summary of Contents for TW-100
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