Instruction manual
Instruction Manual PC 510
13
5.7 Temperature Calibration
The conductivity electrode (EC-CONSEN91W / 35608-50) supplied has a
built-in temperature sensor. Alternatively, a separate temperature sensing
element can be used (such as temperature probe EC-WPPHTEM-01W /
35618-05), or a “3-in-1” pH/Temperature combination electrode with ATC
connection.
The conductivity probe is factory calibrated. Temperature calibration is
recommended only if you suspect temperature errors may have occurred
over a long period of time, or if you have a replacement probe.
Temperature calibration is accessible during pH, conductivity or TDS
calibration.
Temperature Calibration
1. Make sure the conductivity electrode, or temperature probe, or “3-in-1”
electrode is attached to the 6-pin connector.
2. Switch the meter on.
3. Press the CAL/MEAS key to enter calibration mode (either from pH or
conductivity mode). The CAL indicator will appear above the primary
display.
4. While in pH (or conductivity or TDS) calibration mode, press the MODE
key to enter temperature calibration mode. The primary display shows
the last set temperature value and the secondary display shows the
temperature reading with zero offset.
5. Dip the ATC probe into a solution of known temperature (i.e. a
temperature bath). Allow time for the temperature probe to stabilise.
6. Scroll with the or key to set the correct temperature value (i.e. the
temperature of the temperature bath). You can adjust the reading by 0.1
°C or °F increments.
7. Once you have selected the correct temperature press the ENTER key.
The meter automatically returns to measurement mode.
NOTES:
• You can offset the temperature reading up to ±5° from default reading.
• To exit this program without confirming the temperature calibration value, DO NOT press ENTER,
press CAL/MEAS in step 7 instead.
Figure 12: Temperature calibration
in pH mode
MEAS
pH
ATC
°C
7.16
22.3
MEAS
pH
ATC
°C
7.16
22.0
CAL
pH
pH
7.16
7.00
CAL
A
TC
°C
22.3
22.3
ATC
°C
22.0
22.3
CAL
READY
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