NAVI D-25 Instruction Manual page 80

Asymmetrical potential display
D-52/53/54/55
Latest calibration data
1.
Press the ▼ key with latest calibration date
displayed.
The asymmetrical potential will be displayed.
Example of 3-point calibration
2.
Press the ▼ key to show sensitivity display.
Status display
When the meter is in a good condition
When the electrode needs washing
When the electrode is old and is going bad
Refer to"Asymmetrical potential display" on page 175.
pH latest check data
1.
Press the ▼ key with latest check date
displayed.
The repeatability display will appear.
Repeatability display
3.2 pH calibration history display
Status
Sensitivity display 4-7
3 Functions
Sensitivity
display
7-9
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