Xylem IQ SensorNet FDO 70x IQ (SW) - Manual (Page 30)

Maintenance, cleaning, replacement parts FDO
®
70x IQ (SW)
5 - 4 ba76014e01 02/2012
5.4.2 Interior cleaning of sensor cap and sensor head
If moisture or dirt have penetrated under the sensor cap, e.g. because
the sensor cap is damaged, you can make the sensor ready for opera-
tion again as follows:
Caution
Only use nonabrasive, alcohol-free detergents, as otherwise the
optical surfaces could be damaged.
Note
If the sensor cap is visibly damaged it has to be replaced.
1 Remove the sensor cap (see section 5.3).
2 Clean the sensor head and sensor cap:
– Rinse all inner surfaces with tapwater
– Remove contamination containing fat and oil with warm
water and household washing-up liquid
3 Dry all surfaces with a clean, lint free cloth. A lint-free cloth
such as a microfiber cloth used to clean eyeglasses is suitable.
4 Allow the sensor and sensor cap to dry completely at a dry
location so moisture can evaporate even from corners difficult
to access. When doing, so protect the inside of the sensor cap
from light.