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ORP Operation (mV)
1.
Connect the optional (67500B) mV ORP electrode to the BNC input jack at the top of
the meter.
2.
Turn the meter ON using the POWER button.
3.
Select ‘mV’ (millivolts) via the meter’s front panel slide-switch.
4.
Rinse the ORP probe in distilled water.
5.
Place the electrode in the test solution and read the millivolt (ORP) value.
6.
Rinse the electrode with distilled water before storing.
Note that calibration is not required for the ORP function.
Advanced Features
MIN MAX AVG Record / Recall Mode
1.
Press the RECORD key (the REC indicator will appear on the LCD).
2.
Press the RECALL key to view the highest (MAX) reading recorded since the RECORD
key was first pressed. The MAX indicator will appear on the LCD.
3.
Press the RECALL key to view the lowest (MIN) reading recorded since the RECORD
key was first pressed. The MIN indicator will appear on the LCD.
4.
Press the RECALL key to view the average (AVG) reading recorded since the RECORD
key was first pressed. The AVG indicator will appear on the LCD.
5.
Press the RECORD key again to exit this mode.
6.
Note that the Auto Power OFF feature is disabled in this mode.
Automatic Power OFF (APO)
The meter automatically switches OFF after 10 minutes. To defeat APO, put the meter
in the Record mode by pressing the RECORD key. To turn the meter OFF, first exit the
Record mode (long press the RECORD key until the RECORD display icon switches off)
and then press the POWER key.
Data Hold
Press the HOLD key to freeze the displayed reading. The DH indicator will switch on in
the Data Hold mode. Press the HOLD key again to exit the Data Hold mode (the DH
indicator will switch off).
