KROHNE ALTOSONIC V12 EN - Manual (Page 94)

8
SERVICE
94
ALTOSONIC V12
www.krohne.com 04/2013 - 4002643502 - MA ALTOSONIC V12 R02 en
8.6 Exchange of electronics unit
Before opening the converter housing: Before opening the converter housing: Before opening the converter housing: Before opening the converter housing:
8.6.1 Field version
• First release the fasteners that prevent thoughtless or imprudent opening of the Ex d
enclosure, this requires a 2.5 mm Allen key.
• Loosen the display cover of the electronics compartment by hand, by turning it counter
clockwise 1.
• Pul the metal pullers to remove the display.
• Pull the pullers a bit out.
• Remove the plastic covers and loosen the two M4 screws 3 at the electronics unit.
• Loosen all connectors.
• Pull the two metal pullers 4 at the left and right of the display 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!
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Make notes of important specific data, before exchanging the electronics.
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 8-35: Remove electronic unit