WPI EVOM3, Instruction Manual

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EVOM3
World Precision Instruments 13
2. Choose your units. Options include Millivolts, Volts, Ohms and K Ohms. If you
choose ohms, then you must also select an Ohms Range.
Fixed Current Variable Current
10 K 10 µA Auto 2 µA to 10 µA
50 K 4 µA
100 K 2 µA
3. Press Return .
Blank Handling Page
1. Press Blank Handling on the Setup page to subtract the control well blank from the
current resistance measurement.
Fig. 15—(Left) Blank Handling window.
Fig. 16—(Right) The main screen shows the offset underneath the reading.
2. Insert the probe into an empty well filled with media. Press Reading to make a
measurement.
3. Select the Blank Enable radio button to enable the offset.
4. Press Return . The resistance offset shows under the reading on the main screen.
If the blank (offset) is greater than the resistance reading, the reading will display
negative numbers in red text. The saved data file reflects the subtraction.
NOTE : This includes fluid and electrode resistances.
Setting the Date and Time
1. Press Time/Date on the Setup page to set the date and time format.
Fig. 17—The Set Date/Time screen lets you set the date and time and choose the display format.
2. Press Set Date . Set the appropriate date and press Return .