10 Repair
76
10 Repair
WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
• Before opening the housing, switch off the power supply.
CAUTION
Risk of burns due to hot measuring media
The device surface temperature may exceed 70 °C (158 °F),
depending on the measuring medium temperature!
• Before starting work on the device, make sure that it has
cooled sufficiently.
NOTICE
Damage to components!
The electronic components of the printed circuit board can be
damaged by static electricity (observe ESD guidelines).
• Make sure that the static electricity in your body is
discharged before touching electronic components.
10.1 Spare
parts
Repair and maintenance activities may only be performed by
authorized customer service personnel.
When replacing or repairing individual components, use original
spare parts.
Note
Spare parts can be ordered from the manufacturer.
10.2 Replacing the fuse
NOTICE
If the O-ring gasket is seated incorrectly or damaged, this
may have an adverse effect on the housing protection
class.
Follow the instructions in
Opening and closing the terminal
box
on page 22 to open and close the housing safely.
1
Fuse holder with fuse
Figure 50: Fuse holder
A fuse is located in the transmitter housing.
Component Part
number
Power supply fuse (T 500 mA, 250 V)
suitable for all models
00706386
Follow the steps below to replace the fuse:
1.
Switch off the power supply.
2. Unscrew front cover.
3.
Take off LCD display.
4.
Remove defective fuse and insert new fuse.
5.
Re-attach LCD display.
6.
Screw on cover again.
7.Switch on the power supply.
8.
Check the device for correct functioning.
The device is defective and needs to be replaced should the fuse
blow again after activation of the device.
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Summary of Contents for 406060
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