Integral Transmitter - Replacing The Internal Heater Fuse - ABB Endura AZ30 series Programming Manual

Endura AZ30 series integral probe and remote transmitter
Combustion oxygen monitor
5.4.2 Integral Transmitter – Replacing the Internal Heater Fuse
Note. The internal fuse is a protection device for the probe heater – it is not a transmitter mains power
isolation device.
To replace the integral transmitter internal heater fuse:
1. Isolate the transmitter from mains power – see Section 5.1, page 18.
Referring to Fig. 5.8
2. Turn security screw
3. Unscrew and remove transmitter front cover
4. Slacken the three cartridge screws
5. Remove the plug-in fuse
6. Refit the cartridge and transmitter front cover
7. Turn security screw
Fig. 5.8 Integral Transmitter – Replacing the Internal Fuse
28
A
clockwise to enable the transmitter front cover
C
and lift the cartridge
E
from the fuse socket and fit a new fuse (1 A type F) into the fuse socket.
A
anti-clockwise until the transmitter front cover
E E
B B
B
(a lever can be used across the flats if necessary).
D
away from the housing.
B
by reversing steps 4 to 1.
A A
D D
5 Electrical Installation
B
to be removed.
B
is locked in place.
COI/AZ30E–EN Rev. D