Notes On The Measurement - Pce Instruments Pce-Com 20 Bedienungsanleitung

In order to make a measurement, the probe must be placed vertically and directly on the sample
material for two seconds. The meter will then emit a sound to signalise that the conductivity
measurement is completed. The measured data are automatically shown in the display and do not
disappear before a new measurement is made.
Make sure that you have set the correct temperature coefficient and that you adapt the value to the
compensation temperature of the material during the measurement. If this is not ensured, the
measuring accuracy will suffer. In the chapters 5.4.3 and 5.4.4, you can see how to set these values
correctly.
5.3

Notes on the measurement

•
During a calibration or measurement, the probe must be held in a way that it
always touches the material to be tested vertically and with moderate pressure.
It is also important that the probe is moved to and away from the material
carefully.
•
Do not hold the probe in your hands for too long as your body temperature would
make the temperature value of the meter increase. This will have a negative effect
on the measuring accuracy.
•
It is important to keep the probe, the sample, the device and the calibration body
at a constant ambient temperature level.
•
The device and the calibration body should only be used and stored in areas
where it is not exposed to corrosion, shocks and electromagnetic fields.
•
A measurement should only be carried out within the normal temperature range
of 0 ... 40 °C.
•
A measurement should only be made if no radiator or electric fan is in the direct
environment and if the instrument is not exposed to direct sunlight.
•
Do not touch the tip of the probe, the calibration block and the area of the material
you wish to test with your fingers.
•
If grease or dirt is on the probe, the calibration block or the sample material, make
sure to clean the parts affected immediately.
•
The meter and the probe must be protected from shocks and vibration. There
must not be any scratches on the surface of the calibration block.
•
If the end of the probe is worn, replace the probe.
•
Do not touch the temperature sensor with your fingers.
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