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Chapter 8 Periodic Inspection Mode
This chapter explains about the function to periodically check performance of the
instrument and the electrode in pH, ION, and COND measurements using.
We recommend that you perform the check once every 3 months. Setting conditions are
described individually in each pH, ION, and COND measurement item.
8.1 pH Periodic Inspection Mode Setting
There are three modes for the pH periodical check: JIS mode, Pharmacopoeia mode, or
Simulator (X-51) mode.
JIS mode
This mode conforms to the JIS Z8802-1984.
Using the combination of electrode and the instrument, you can check the coincident
format of the JIS by standard solutions of pH7, pH4 and pH9 .
Pharmacopoeia mode
This mode conforms to the Japanese Pharmacopoeia 16th edition.
After measurement by standard solutions of pH7 and pH4, the measurement of the
solution of pH7 is given five times, and the repeatability is confirmed.
Simulator (X-51) mode
Optional pH simulator (X-51) checks the meter only (electrode check is not included).
・ The JIS and Pharmacopoeia modes are based on the corresponding regulations, but
not fully compliant with the regulations. Note that the modes may not follow the
regulations if the regulations are revised or amended.
・ Set the indicated resolution to 0.001 pH in "3.6 Indicated Resolution of pH
Measurement Values Setting" (P.44).
8.1.1 Settings
The setting of pH periodic inspection mode is completed.
Hereinafter, how to set each pH periodical inspection item is described.
1.
Tap
, and tap "Inspection".
2.
Tap
when displayed the periodic inspection
select screen, and tap "CH1 CAL SET".
Display the pH periodic inspection item.
3.
Tap
on the right of the pH periodic
inspection item, and tap the pH periodic
inspection method.
The setting applies.
The check mark on the current setting item is
displayed.
To cancel the settings, tap
.
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