2—18
User-Entered Calibration, continued
3. Insert the reagent blank or deionized water into the meter and cover with the
cap. Press the
ZERO/SCROLL key. The meter will display “- - - -”, followed by
“0.000”. This initializes (zeroes) the meter.
4. Press the
MENU key and hold it down until the display shows “USER”, followed
by “CAL”. Press
READ/ENTER to enter the calibration mode.
5. In factory-calibrated meters, S0 will appear in the display.
Note: When recalibrating a factory-calibrated meter or range, RES (resolution) cannot
be changed.
6. In uncalibrated meters or meters with ranges labeled Abs, “RES” will appear.
Press
ZERO/SCROLL to review the current resolution (decimal placement). Press
ZERO/SCROLL again to accept the current resolution. To change the resolution,
press
READ/ENTER, then ZERO/SCROLL to change the resolution. Press
READ/ENTER to accept the new resolution. “S0” will appear on the display.
7. Press the
READ/ENTER key again, then enter the blank value.
Note: Press the
READ/ENTER
key to move from digit to digit. Use the
ZERO/SCROLL
key to
change the number.
8. After completing entry of the blank value, press the READ/ENTER key. The
display will show “A0”.
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