3 Important application notes
3.1 Avoiding damage to the measuring probe
3.2 Calibration and measuring accuracy
Measuring devices are sensitive and must be handled with care:!
Avoid shocks, impacts and vibrations.
The sintered filter protects the sensor against mechanical stress and contamination.
Do not remove the filter. Only use the probe if the sintered filter is undamaged!
Prior to installation, check that there is no condensation, oil or dirt at the measuring
point! Should this be the case, repair and dry out the system!
The measuring system is not suitable for use with compressed air with a high oil content,
as directly covering the sensor with a film of oil impairs its response, blocks the pores of
the filter and damages the filter choke.
As a rule of thumb: If you have any questions, contact the manufacturer.
Do not attempt to experiment with the device as you may cause faults and damage
to occur!
Prior to delivery, the pressure dew-point sensor is adjusted and tested by means of a complex
calibration procedure involving several temperatures and humidity points. It is not possible for
the end user to calibrate the device.
Please observe the permissible temperature range for use. Excessive temperatures reduce the
measuring accuracy. The probe will be damaged if the temperature limit is exceeded.
The specified data, in particular the desired measuring accuracy, are valid at a temperature of
20°C. In principle, the lower the temperature at the sensor, the more accurate the measurement
result. If possible, measurements should be taken in a cool area, or the gas should be cooled to
ambient temperature.
With proper use, the probe will have a lifespan of many years. Nevertheless, to prevent errors,
it is important that the sensor be calibrated once a year, according to the manufacturer's
specifications. This particularly applies when the probe is used in critical applications within the
lower dew-point measuring range.
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