Installation
14
09/10 MN05013011Z-EN
Fitting the protective diaphragm
For special applications such as in the food industry, the
keypad must be protected against the ingress of dust, liquids
etc. In this case fit the protective diaphragm over the display/
operating unit.
Figure 7:
Fitting the protective diaphragm
a
Protective diaphragm
b
Display and operating unit
h
Fit the protective diaphragm before mounting the display/
operating unit.
a
b
i
Danger!
Ensure that the membrane fits snugly in the groove of the
display/operator unit. Otherwise a proper seal cannot be
guaranteed and particles may enter underneath the
membrane. This may cause malfunctions in the keypad.
In food industry applications, there is the risk of bacteria
building up underneath the membrane.
