4
Measurement
15
4.0 Measurement
Your meter is capable of taking measurements that incorporate temperature
measurements automatically (most common) or using a temperature which
you input manually (rare).
4.1 With Automatic Temperature Compensation (ATC)
To compensate your reading using temperature values as measured by your electrode,
simply attach the phono plug of the electrode to the meter. The measured reading is
automatically compensated to the specified normalisation temperature (either 20°C
or 25°C). The rate of compensation which is applied is the Temperature Coefficient.
See
Section 5.5 - Temperature Coefficient
See
Section 5.6 - Normalisation Temperature
4.2 Without ATC (Manual Temperature Compensation)
You can use manual temperature compensation after manually entering
the temperature value of your process into the meter. The meter will then
compensate from this fixed value to the normalisation temperature. Any
temperature can be used between 0 and 50°C. The default value is 25°C.
To activate manual temperature compensation, simply unplug the temperature
sensor from the meter (mini phono plug) and follow the steps 2 thru 6 of
Temperature Calibration.
See
Section 3.6 - Temperature Calibration
4.3 Taking Measurements
1
Rinse the electrode with de-ionised or distilled water before use to
remove any impurities. Shake or air dry. To avoid contamination or
sample dilution, rinse probe with a small volume of your sample.
2
Dip the probe into the sample.
3
Allow time for the reading to stabilise. Note the reading on the display.
NOTE:
The protective probe guard must be attached during measurement.
Erroneous results will occur while the probe guard is removed. Always
immerse the probe beyond upper steel band for best results. Use the fill
line on the outside of the probe guard for reference.
