WPI EVOM3, Instruction Manual

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14 World Precision Instruments
3. Press Date Format . Choose your preferred format and press Return .
Fig. 18—(Left) Set the date and press Return
Fig. 19—(Right) Choose the date format and press Return
4. Press Set Time . Set the appropriate time and press Return .
5. Press Time Format . Choose 12 hour or 24 hour and press Return .
Fig. 20—(Left) Set the time and press Return
Fig. 21—(Right) Choose the time format and press Return
Probe Null
1. Press Probe Null on the Setup page to access the NULL Probe Process screen.
Fig. 22—(Left) Null probe process.
Fig. 23—(Right) The potential difference offset shows on the main screen under the reading.
2. Place the electrodes in a saline media.
3. Push the
NULL button. Wait for the second message stating ”Solution value 0.0”
before returning. This action removes any voltage offsets on the electrodes and
neutralize the offset charge on V
1
-V
2.
4. Select the Enable/Disable radio button to use the offset.
5. Press Return . The potential difference offset shows on the main screen under the
reading. An electrode check should show 0.0 mV. The saved data file reflects the
offset.