testo P2A Software - First steps18
Maintaining the product
Cleaning
the
housing:
Clean the housing with a damp cloth (soap suds) if it is dirty. Do not use
aggressive cleaning agents or solvents!
Cleaning
the
sensor
of
the
testo 6621-AA01
(wall/voltage
version):
Do not touch sensor.
Open the housing and carefully clean the reflective surface of the sensor
(top right, assembled vertically on the circuit board) with distilled water or
ethanol. Allow the sensor to dry completely.
Cleaning
the
sensor
of
the
testo 6621-AA02
(duct),
testo
6621-AA03
(wall/current
version):
Do not touch sensor.
Unscrew the sensor protection cap and carefully rinse the reflective
surface of the sensor with distilled water or ethanol. Allow the sensor to
dry completely.
Cleaning
the
filter
of
the
testo 6621-AA02
(duct),
testo
6621-AA03
(wall/current
version):
If using a sintered filter:
Clean regularly by blowing out with compressed air or ultrasonic bath,
depending on the level of contamination created by the process.
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