Other Applications; Aerial Faults (Toning) - 3M Dynatel 2250M Series Operator's Manual

OTHER APPLICATIONS

Aerial Faults (Toning)

Transmitter Setup
Connect the transmitter (based on type of fault) as described in
Connection Diagrams in the following section.
Press and hold [T-1] to perform a battery test.
Press OHMS/FAULT/TONE [T-2] to turn the Transmitter on and to
verify the fault.
Press OHMS/FAULT/TONE [T-2] twice more to select the Tone mode.
The display [T-4] will alternately flash between 577 and 200K.
Press OUTPUT [T-5] for high output level.
Receiver Setup
Press ON/OFF [1] to turn the Receiver on.
Press Locate [5]
Press Tone/Ext [SK] to select Tone mode.
Press Freq [SK Toggle] to select 577Hz.
Connect a toning coil to the receiver EXTERNAL JACK [13].
Move the toning coil along the cable and find a peak signal then press
Gain/Down [4] to adjust the receiver gain.
Press SPEAKER [2] to adjust the speaker volume as needed.
Follow the cable with the toning coil.
* When the receiver detects a short, cross, or ground fault (Connection
Diagrams #1, #2, or #3), the audio and signal strength will stop or drop
off sharply.
* When the receiver detects a split (connection #4) the audio and signal
strength will increase significantly.
* When verifying a split (connection #5) the audio and signal strength
will decrease after the toning coil has passed the split.
Connection Diagrams:
Short:
Figure #1 Red clip to Tip; Black clip to ring.
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