
Endura AZ series integral and remote transmitter
Combustion oxygen monitor
4 Electrical Installation
IM/AZ20E–EN Rev. F
25
4.11.1 Integral Transmitter – Internal Heater Fuse Replacement
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
A
.
3.
Unscrew and remove lid
B
.
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 plug a new fuse (1 A type F) into the fuse
socket.
6.
Refit the cartridge and lid by reversing steps 4 to 1.
Note.
The internal fuse is a protection device for the probe heater – it is not an integral transmitter mains
power isolation device.
Note.
If screws
C
are not visible, refer to Fig. 4.2, page 13 to rotate the cartridge.
Fig. 4.14 Integral Transmitter – Replacing the Internal Fuse
E
D