accumet AE150 pH Benchtop Meter
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www.fishersci.com
mV Calibration
If relative mV has never been calibrated or if the meter has been reset, the value shown in
the upper display during the calibration will be the same as the absolute mV value.
The range of adjustment is -1999 mV to +1999 mV with 1 mV resolution or -199.9 mV to
+199.9 mV with 0.1 mV resolution.
1. To power the meter on, press the
ON/OFF
key. All the
display segments will be displayed briefly and then the pH
measurement mode will be displayed.
a. If necessary press the
MODE
key to select the pH
measurement mode.
2. Press the
CAL/MEAS
key to enter the calibration mode.
a. The “CAL” icon will be shown on top of the display to
indicate the meter is in R.mV calibration mode.
b. The upper display will show the relative mV reading
and lower display will indicate the absolute mV value.
3. Rinse the electrode with an appropriate rinse solution. If
using a separate temperature probe, thoroughly rinse the
temperature probe as well.
4. Select a standard and pour the standard into a clean
container.
5. Immerse the electrode and temperature probe into the
standard.
6. Press the
or
arrow key to set the relative mV value to match the desired
standard value.
7. Press the
ENTER
key to confirm the reading and the meter will proceed to the
measurement mode. The upper display will show the relative mV reading and the
“R.mV” icon will appear in the upper right hand corner.
Note:
New mV calibrations will override existing stored mV calibration data. The meter
retains stored mV calibrations even when the meter is turned off.
