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4 CALIBRATION
17
4
CALIBRATION
Calibration is to adjust and match the measured and actual values and required to maintain
accurate measurement and system performance.
4.1
Calibration Patterns and Cycles
Periodic calibration is required.
Calibrate the values using any of the following patterns.
Std. item
◎
Recommended calibration
○
Simple calibration
Measurement
item
Calibration pattern
Calibration cycles
Procedure
reference
System
startup
Daily
Every 3
months
Abnormality
occurrence
Turbidity/
color/residual
chlorine
Automatic zero-calibration
◎
Turbidity
Common zero-calibration
and span calibration
◎
◎
◎
Individual zero calibration
and span calibration
○
○
○
Adjustment calibration using
sample water
(Zero Calibration)
○
○
○
Color
Common zero-calibration
and span calibration
◎
◎
◎
Individual zero-calibration
and span calibration
○
○
○
Adjustment calibration using
sample water
(Zero Calibration)
○
○
○
Residual
chlorine
Common zero-calibration
and span calibration
○
○
○
Individual zero-calibration
and span calibration
○
○
○
Adjustment calibration using
sample water
(Span calibration)
◎
◎
◎
Water
pressure
Adjustment calibration using
sample water
(Zero calibration)
(Check
only)
Summary of Contents for TW-100
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