Amprobe AT-4000 Series Advanced-Wire-Tracer - Manual (Page 18)

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Use of the B2024 battery or the B2025 converter is recommended. 2.
Set the T-4000 to ‘HIGH’ mode. 3.
Set the R-4000CON to ‘SHORT’ mode and ‘LOW’ sensitivity. 4.
Trace the conduit. (Refer to Figure 20) 5.
Note: When using the battery booster (B2024 or B2025) the unit will
work in ultra high “U-HI” mode only. Remove the battery booster to
return to normal operation.
MAINTENANCE
Changing Batteries
The battery compartment on the back of the R-4000CON and the
T-4000 is designed to make it easy for the user to change the battery.
A screw is added to secure the battery in case the unit is dropped. A
9-Volt battery is used.
Remove the battery cover. 1.
Install a 9V Battery using the battery clip. 2.
Replace the battery cover and secure it with the provided screw. 3.
Changing Fuse
Remove the battery cover of the T-4000. 1.
Remove the bottom enclosure of the T-4000. 2.
Remove the fuse. It is located on the upper end of the unit. 3.
Use fuse replacement part #100721. 4.
Close the bottom enclosure first, secure it with the provided 5.
screws.
Close the battery cover, secure it with the provided screw.
6.
Replacement Parts
9V Battery 9V Alkaline
Clamp-On Transmitter Accessory A2202