10
Clean the electrode with distilled water.
Immerse the electrode in the standard solution(Zero Calibration: pH7, Span Calibration: pH4 or pH9).
Wait until the Controller has stabilized.(It may take up to 5 minutes)
Make sure that the setting temperature matches the temperature of the standard solution.
If it is not matched, change the setting temperature.(Refer to 9-11 The setting of Automatic
Temperature Compensation)
※When using automatic temperature compensation, separate settings are not required.
In the Measuring Mode, press the CAL key for 5 seconds to enter the Calibration Mode.
Press ENTER key, after selecting the Calibration Method(Automatic: Aut, Manual: n
-
An) with ▲
and ▼key.
Press ENTER key, after selecting the Calibration Type(ZERO, SPAN) with ▲and ▼key.
The measured pH value is displayed.
In case of Manual Calibration, can change the Calibration Value with ▲and ▼key.
If you are using a standard solution not specified in 8-1 the temperature characteristic table,
change it to pH value that corresponds to that standard solution.
Press ENTER key to complete the calibration.
8-4 ORP Calibration
※In case of ORP calibration, it will be not necessary to set any calibration because ORP Calibration
of the controller was already completed before delivery from factory.
Zero Calibration
①Disconnect the electrode wire from the rear
terminal of the Controller.
②Short circuit between G(M) and R terminals.
Span Calibration
①Clear the electrode with distilled water and
submerge it in Quinhydrone solution.
②Wait until the Controller’s concentration has
stabilized.
③In the Measuring Mode, press the CAL key for
5 seconds to enter the Calibration Mode.
④Press ENTER key, after selecting the
Calibration Type(ZERO, SPAN) with ▲and ▼
key.
⑤The measured ORP value is displayed.
⑥Can change the Calibration Value with ▲and
▼key.
※Change the Calibration Value only if it is
needed.
⑦Press ENTER key to complete the calibration.
※In case of Zero Calibration, connect the
electrode wire.
