Integral Transmitter - Internal Heater Fuse Replacement - ABB Endura AZ series User Manual

Endura AZ series integral and remote transmitter
Combustion oxygen monitor
4.11.1 Integral Transmitter – Internal Heater Fuse Replacement
Note. The internal fuse is a protection device for the probe heater – it is not an integral transmitter mains
power isolation device.
To replace the integral transmitter internal heater fuse:
1. Isolate the integral probe from mains power – see Section 4.1, page 11.
2. Referring to Fig. 4.14, screw in security screw
3. Unscrew and remove lid
4. Slacken the three cartridge screws
Note. If screws
5. Remove the plug-in fuse
socket.
6. Refit the cartridge and lid by reversing steps 4 to 1.
Fig. 4.14 Integral Transmitter – Replacing the Internal Fuse
IM/AZ20E–EN Rev. F
B
.
C
and lift the cartridge D away from the housing.
C
are not visible, refer to Fig. 4.2, page 13 to rotate the cartridge.
E
from the fuse socket and plug a new fuse (1 A type F) into the fuse
D
E
A
.
4 Electrical Installation
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