19. Additional Applications

A. Aerial Faults (Toning)

1. Transmitter Setup

1.Connect the transmitter (based on type of fault) as described in Connection Diagrams in the following section.

2.Press and hold off [T-1] to perform a battery test.

3.Press on: Ohm-meter/Fault Locate/Tone [T-2] to turn the Transmitter on and to verify the fault.

4.Press on: Ohm-meter/Fault Locate/Tone [T-2] twice more to select the Tone mode.

5.The Digital Display [T-4] will alternately flash between 577 and 200K.

6.Press Output Level [T-5] for high or maximum output level.

2. Receiver Setup

1.Press On/Off (Power) [T-1] to turn the receiver on.

2.Press Locate/OK [5]

3.Press Tone/Ext [SK] to select Tone mode.

4.Press Freq [SK Toggle] to select 577Hz.

5.Connect a toning coil to the receiver External Jack [14] ([13] on 2250M transmitter).

6.Move the toning coil along the cable and find a peak signal, then press Gain [4] down to adjust the receiver gain.

7.Press Speaker Volume Control (Spkr/Xpnd) [2] to adjust the speaker volume as needed.

8.Follow the cable with the toning coil.

−− When the receiver detects a short, cross, or ground fault (Connection Diagram Figures #1, #2, or #3), the audio and Signal Strength [10] will stop or drop off sharply.

−− When the receiver detects a split (Connection Diagram Figure #4) the audio and signal strength will increase significantly.

−− When verifying a split (Connection Diagram Figure #5) the audio and signal strength will decrease after the toning coil has passed the split.

78-8130-6150-0 Rev G

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3M 2250M-iD, 2273M-iD manual Additional Applications, Aerial Faults Toning