WPI EVOM3, Инструкция по эксплуатации

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EVOM3
World Precision Instruments 23
• Select Plate –Choose the plate size.
• Select Mode Units – Choose OHMS or KOHMS for making resistance
measurements. Select the resistance range (auto or 10,000 ohms).
• Calibrate –Press Calibrate to calibrate the electrode. (This uses a 10 KΩ 0.1%
resistor). See "Instrument Diagnostics and Calibration" on page 21.
• Blank Handling – To subtract a blank well (including the fluid and electrode
resistances), place the electrode in a blank well and press Reading . Press the
Blank Enable radio button to subtract the blank value.
Fig. 41—(Left) Blank Handling window.
Fig. 42—(Right) The main screen shows the offset underneath the reading.
• Press Return to navigate back to the main menu.
4. Insert a USB drive into the USB port on the side of the EVOM3 and begin
measuring by pressing the foot switch or touching the Store button on the screen.
Tap the Next Well area on the right side of the screen to advance to the next well.
Repeat the sampling process.
5. Once the last well has been recorded, the file storing selection notification appears.
Fig. 43—Warning that the last cell measurement was taken.
6. Press Store . A system message will report if the USB thumb drive is usable,
or it will display an error. If the USB thumb drive is not plugged in or it is not
recognized, a warning message will appear. Press Cancel and try another drive.
The Store function cannot be used on an unrecognized drive. EVOM3 should
respond with “File saved” within 15 seconds. If “Saving file...” is still seen after 20
seconds, press the Return key and use another USB drive. Once a file has been
saved, open the file on a computer to verify the contents.
NOTE : The file saving routine can take up to 15 seconds to complete. See the
USB cautions on page 5.
7. Remove the USB thumb drive to transfer the data file to your computer as a CSV
file (Excel).