9
Maintenance and service
9.1
Cleaning
Use a soft cloth and soap solution to clean the front of the field housing and the membrane
keypad.
Caution:
Even if the instrument becomes very dirty (e.g. from paint or varnish) do not use
agressive cleaning agents such as thinner or acetone!
9.2
Repair
Replacing a blown fuse
Disconnect the instrument from the power source. Loosen the four screws on the connection
space cover and remove the cover. The fuse is located in the upper right corner of the
connection space in the black, upright fuse holder. To change the fuse, loosen the fuse holder
cap (bayonet lock), replace the fuse and reinstall the cap.
Further repairs
Further repairs may only be carried out directly by the manufacturer or through the
Hauser service organisation. An overview of the Hauser service network
can be found on the back cover of these operating instructions.
liquisys CUM 252
Maintenance and service
Hauser
43
