Without Temperature Probe (No Atc) - LaMotte pH 5 PLUS Manual

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1. Connect the temperature probe to the meter. Press the MODE
key until the °C annunciator appears on the DISPLAY.
2. Compare the displayed value to a NIST certiÞ ed thermometer or
other thermometer known to be accurate. For the most accurate
results, place both the probe and thermometer in a constant
temperature bath.
3. Press the CAL key to enter the temperature calibration mode.
The DISPLAY will show CA momentarily and the displayed
reading will ß ash.
4. Press INC key until the display shows the desired temperature.
The meter will allow an adjustable maximum value of ±5 °C
from the factory default.
5. To cancel or abort this operation, press the CAL key. To conÞ rm
the calibration, press the ENTER key. A new value will be
stored in the meter non-volatile memory. The meter will display
CO momentarily, and then revert to the measurement mode.

3.2.2 Without Temperature Probe (no ATC)

If a temperature probe is not used, the meter will compensate the pH
response based on a temperature value that has been manually set or at
the factory default of 25.0 °C.
1. Press the MODE key until °C shows on the DISPLAY.
2. Compare the displayed value to a NIST certiÞ ed thermometer or
thermometer that is known to be accurate (dipped into a constant
temperature bath).
3. Press the CAL key to enter the temperature calibration mode.
The DISPLAY will show CA momentarily and the displayed
reading will ß ash. Note that the displayed value should be either
25.0 °C or the last set temperature value.
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