3M Dynatel 7550 Series User Manual

60 78-9000-5020-0 Rev C
21. Memory Self Test
Menu [6] + >>More [SK:4] + S/N# SK:7]
This operation performs a self-test on the locator.
The locator will display current information about the unit (model number, serial number,
software revision, and hardware revision).
1. Press Run [SK] to start the self test.
− A status bar will appear while the self test is running.
− Results will appear on the display when the test is complete.
− Press Exit [SK] to return to the Menu.
22. Additional Applications
A. Aerial Faults (Toning) (3M
™
Dynatel
™
Locator Models 7573 only)
Transmitter Setup
Step 1. Connect the transmitter (based on type of fault) as described in Connection
Diagrams in the following section.
Step 2. Press and hold off [T-1] to perform a battery test.
Step 3. Press on: Ohm-meter/Fault Locate/Tone [T-2] to power the Transmitter on and
to verify the fault.
Step 4. Press on: Ohm-meter/Fault Locate/Tone [T-2] twice more to select the Tone mode.
Step 5. The Digital Display [T-4] will alternately ash between 577 and 133K.
Step 6. Press Output Level [T-5] for high or maximum output level.
Receiver Setup
Step 1. Press On/Off [1] to power the receiver on.
Step 2. Press Menu/OK [6:Toggle to MAIN MENU]
Step 3. Press Tone/Ext [SK] to select Tone mode.
Step 4. Press Freq [SK Toggle] to select 577Hz.
Step 5. Connect a toning coil to the receiver External Jack [10]
Step 6. Move the toning coil along the cable and nd a peak signal then press Gain [4]
down to adjust the receiver gain.
Step 7. Press VOL [1] to adjust the speaker volume as needed.
Step 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 will stop or
drop off sharply.
− When the receiver detects a split (Connection Diagram Figure #4) the audio
and signal strength will increase signicantly.
− When verifying a split (Connection Diagram Figure #5) the audio and signal
strength will decrease after the toning coil has passed the split..

3M Dynatel 7550 Series Specifications

General

Brand	3M
Model	Dynatel 7550 Series
Category	Measuring Instruments
Language	English