Battery Replacement
Note: Use only good quality alkaline batteries for maximum
operating life. Always replace with a complete set of new
batteries of the same type. Remove batteries as soon as
they become exhausted to avoid damage due to leakage.
Remove the batteries for storage lasting longer than 1 month
or when the unit will be used infrequently.
Transmitter:
Ensure that the test leads are removed from the output
jacks and the circuit under test.
1) Remove the battery cap by loosening the screw.
2) Replace batteries with (6) new AA batteries.
3) Re-fit cap and re-tighten the screw.
Receiver:
1) Remove the battery cap by loosening the screw.
2) Replace batteries with (4) new AA batteries.
3) Re-fit cap and re-tighten the screw.
Fuse Replacement (TR-946 & TR-948)
If the following symptoms are exhibited, the internal protection
fuse should be checked and replaced:
• The transmitter appears to power up normally but signal
output is zero, or greatly diminished.
• When connected to a live circuit, the indicator does not light.
• The receiver still indicates a strong reading when placed in close proximity to the transmitter.
WARNING
To avoid personal injury or damage to the transmitter, use only the IDEAL fuse specified in this
manual.
Ensure that the test leads are removed from the output jacks and the circuit under test.
1) Remove the battery cap and batteries as described above.
2) Unscrew the (6) retaining screws from the rear section of the case and remove.
3) The fuse is located at the connector end. Replace with IDEAL part #F-950.
4) Replace the case rear section and screws, batteries and battery cap.
Page 27
Connect to
Ground Rod