11
10
Millivolt (mV) Calibration
mV calibration is performed for ORP (Redox) measurements, where you can adjust
its mV values as a base value for measurements. Contact your OAKTON distributor
for ORP electrodes.
1.
Press MODE/INC key to enter mV mode. LCD displays "mV".
2.
Press the CAL key. LCD shows "CA", and the
reading flashes
See figure
3.
Use the MODE/INC key to adjust the reading
to your desired value. The maximum adjust-
ment you can make is ±25 mV. If the
MODE/INC key is pressed continuously, the
reading scrolls to the maximum allowable
value, and then loops back to the minimum
allowable value.
4.
Press ENTER key to confirm calibration. The
LCD displays "CO" and the meter then
reverts to measurement mode.
5. Measurement
Taking Measurements
1.
Rinse both electrode and temperature sensor with distilled water.
2.
Turn meter on. Press MODE key to select desired parameter
(pH, mV, Temperature).
3.
Dip electrode and temperature sensor approximately 1" to 2" into sample.
Stir gently and wait for display to stabilize. Note reading.
5.1
Hold function
To freeze your reading, press the HOLD key once.
The LCD show "HO" to indicate the HOLD func-
tion is activated
See figure
Press HOLD key again to deactivate the HOLD
function and return to measurement mode.
pH
HO
A
A
5.2
A
A
B
mV
B
4.3
Summary of Contents for pH 5+
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