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

Models: 2250M-iD 2273M-iD 2250M 2273M

1 66
Download 66 pages 57.08 Kb
Page 55
Image 55

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

55

Page 55
Image 55
3M 2250M-iD, 2273M-iD manual Additional Applications, Aerial Faults Toning