User Manual
MC 9090
ex
series
Technical data subject to change without notice.
Issue 03/2010
Page 42
6.1.3
Removing/Changing the Keypad
The keypad and SD card may only be replaced outside the hazardous area!
1.
Turn off the MC 9090
ex
.
2.
Remove the battery. (see chapter 5.3.2 "Charging Processes")
3.
Take out the screws at the top edge of the keypad.
Fig. 1: Removing the keypad
4.
Pull the keypad downwards in the direction of the arrow and then forwards to take it out of the MC 9090ex.
5.
Check that the contacts and seals are clean and in good condition.