KROHNE OPTISONIC 3400 CSA EN - Manual (Page 28)

5
MAINTENANCE AND SERVICE
28
OPTISONIC 3400
www.krohne.com 10/2013 - 7313222100 - AD CSA OPTISONIC 3400 -en- R01
5.4.1 Field version
Perform the following procedures:
• Unscrew the display cover of the electronics compartment by hand, by turning it counter
clockwise 1.
• Remove the display by using two screwdrivers 2.
• Unscrew the two M4 screws 3 at the electronics unit 4.
• Pull the two metal pullers 5 at the left and right of the display, using a screwdriver or similar
tool and partially pull out the electronics unit.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
Figure 5-1: Unscrew the cover and remove the display
Figure 5-2: Pull off printed circuit board
CAUTION!
Please pay attention that the same amount of force is applied on both pullers, otherwise the
connector at the backside can be damaged.