accumet AE150 pH Benchtop Meter
19 of 28
www.fishersci.com
Measurements
Temperature Compensation
Automatic Temperature Compensation (ATC):
For ATC measurements, simply attach the temperature probe to the meter and the “ATC”
icon will be shown on the display.
Note:
If using a temperature probe, the probe must be submersed in the liquid being
measured so that the sample temperature can be recorded and compensated for (pH
measurement mode only) along with the primary measurement.
Manual Temperature Compensation (MTC):
Important: For manual temperature compensation, the temperature probe must be
disconnected from the meter.
1. Power the meter on by pressing the
ON/OFF
key.
2. Press the
MODE
key to select the pH measurement mode.
3. Press the
CAL/MEAS
key to enter the pH calibration mode.
The “CAL” icon will be shown above the upper display.
4. While in pH calibration mode, press the
MODE
key to enter
temperature compensation mode.
a. The upper display will show the current temperature
setting and the lower display shows the default value
25.0 °C (if the meter has never been manually set for
temperature) or the last manually set value if the
meter has previously set for MTC. If you have not set
the current temperature setting the upper display will
also show the default value of 25.0 °C.
5. Check the temperature of the sample using an accurate
thermometer.
6. Press the
or
arrow key to scroll to the temperature
value corresponding to the measured sample temperature.
7. Once the correct temperature is set, press the
ENTER
key to confirm. The meter will
automatically proceed to the pH measurement mode. The meter will compensate pH
reading for the manually set temperature.
