Manual

1918
IMPORTANT: For manual compensation, you must disconnect the temperature probe (see page 9). 1. Switch the meter on. Press the MODE
key to select pH mode.
2. Press the CAL/MEAS key to enter pH
calibration mode. The CAL indicator will appear above the primary display.
3. While in pH calibration mode, press
the MODE key to enter temperature calibration mode. The primary display and secondary display show the last set value.
See figure
4. Check the temperature of your sample
using an accurate thermometer.
5. Press the ▲ or ▼ keys to offset the
temperature to the measured value from step 4.
See figure
6. Press ENTER to confirm the selected
temperature and to return to the pH measurement mode.
The meter will now compensate pH readings for the manually set temperature.
Notes To exit this program without confirming the manual temperature compensation value, DO NOT press ENTER in step 6. Press CAL/MEAS instead.
Manual Temperature Compensation
CAL
C
A
A
5.2
5. Measurement
This meter is capable of taking measurements with automatic or manual temperature compensation. Automatic temperature compensation only occurs when a temperature sensor is plugged into the meter. If there is no temperature sensor plugged into the meter, the default manual temperature setting is automatically 25°C. You can manually set the temperature to match your working conditions using a separate thermometer.
Automatic Temperature Compensation
For automatic temperature compensation (ATC) simply plug the temperature probe into the meter (see page 9 for directions). The ATC indicator will light on the LCD. See figure NOTE: If you are using a temperature probe, the probe must be submersed in the liquid you are measuring.
pH
ATC
MEAS
C
A
A
5.1
CAL
C
B
B
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