Endura AZ30 series integral probe and remote transmitter
Combustion oxygen monitor
5 Electrical Installation
22
COI/AZ30E–EN Rev. D
5.3.2 Remote Transmitter – Replacing the Internal Heater Fuse
To replace the remote transmitter internal heater fuse:
1.
Isolate the transmitter from mains power – see Section 5.1, page 18.
Referring to Fig. 5.3
2.
Turn security screw
A
clockwise to release the transmitter front cover
B
.
3.
Unscrew and remove transmitter front cover
B
(a lever can be used across the flats if necessary).
4.
Slacken the three cartridge screws
C
and lift the cartridge
D
away from the housing.
5.
Remove the plug-in fuse
E
from the fuse socket and fit a new fuse (1 A type F) into the fuse socket.
6.
Refit the cartridge and front cover
B
by reversing steps 4 to 1.
7.
Turn security screw
A
anti-clockwise until the transmitter front cover
B
is locked in place.
Note.
The internal fuse is a protection device for the probe heater – it is not a remote transmitter mains
power isolation device.