Maintenance; Sensor Cleaning - E+E Elektronik EE371 Bedienungsanleitung

Manual english
6.

MAINTENANCE

6.1

Sensor cleaning

Do not touch or rub the sensing element during the cleaning process!
The best way to clean the sensor is to use an ultrasound cleaner. This is a commercially available piece of equipment, which generates
ultrasound vibrations in a small bath. The cleaning agent in the bath should be 50% isopropyl alcohol + 50% distilled water.
Remove the fi lter cap from the tip of the sensing probe. This has to be done very carefully in order to avoid damaging the humidity sensing
element.
Hold onto the sensing probe and slowly stir the tip of the sensing probe in the ultrasound bath for about 1 minute. The sensing element,
the leads, the socket and about ½ an inch of the stainless steel sensing probe should be immersed in the liquid.
If an ultrasound cleaning bath is not available, stir the sensor as described above in a container with a mixture of 50% isopropyl alcohol +
50% distilled water for approx. 2-3 minutes. This procedure suffi ces for "normal soiling".
In the event of extreme soiling – which can be seen on the humidity sensing element with the naked eye – continue the operation until the
pollutants are dissolved.
After the cleaning procedure with isopropyl alcohol, stir the tip of the sensing probe in a container with distilled water for about 30 seconds
and then allow it to dry at room temperature.
! Warning:
It is strongly advised NOT to try cleaning the sensor by mechanical means, such as rubbing the sensor with cotton material!
Important:
It is highly recommended to replace the fi lter cap with a new one after cleaning the sensor.
page 28
EE371 / EE372