Table of Contents
Advertisement
6
Calibration
Calibration
The sensor should be calibrated before use or after cleaning.
• Pressing
Caution
• Depending on the sensor to use, the displayed calibration items and operations
may vary.
For details, refer to the instruction manual for each sensor.
Item
ZERO Cal.
The sensor is immersed in distilled or deionized water
and the measurement value is adjusted to the reference
value (zero).
SPAN Cal.
The span is adjusted to the predetermined reference
value.
1-Point Cal.
The sensor's measurement value is adjusted to the
predetermined 1-point reference value.
2-Point Cal.
The sensor's two measurement values are adjusted to
the predetermined two reference values.
Optional
The sensor is immersed in liquid with certain density and
Density
the measurement value is adjusted to the density.
Initialize
The calibration value is reset to the factory default setting. P.62
Calibration Value
uExample: Zero calibration using turbidity checker
Calibration details depend on a sensor. Refer to each sensor's instruction manual.
1
Clean the sensor's main unit and detection window.
Immerse the sensor in distilled or deionized water.
2
If neither distilled water nor deionized water is
Caution
available, tap water without rust/turbidity can be
used instead.
Allow the sensor to acclimate to the water temperature for about
3
5 minutes, and check that there are no bubbles in the detection window.
4
Press
.
The sensor selection display is displayed.
60
automatically retains the measurement value.
Description
Refer to
P.60
Sensor's
instruction
manual
Advertisement
Table of Contents
