3M 2220M manual Transmitter Operations, Direct Connection, 3M Dynatel Dyna-Coupler Clamp

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Transmitter Operations

There are three different methods of applying the transmitter’s locating signal to the target conductor: Direct Connection, 3MDynatelDyna-Coupler Clamp, and Induction.

Direct Connection

This is the preferred mode of operation because the transmitter is connected directly to a metallic portion of the target conductor (hydrant, meter, riser, valve, sheath, or tracer wire).

1.While the transmitter is off, plug the direct connect cable into the output jack of the transmitter.

2.Attach the red lead of the direct connect cable to the target conductor.

3.Extend the black lead as far as possible from the target conductor at a right angle (90 degrees) to the suspected path of the target.

4.Insert the external ground rod and attach the black lead of the transmitter.

5.Turn the transmitter ON by pressing the frequency button. Select 8 kHz, 82 kHz, or both (8 K and 82 K will flash on the display).

6.An audible tone, indicating the continuity of the signal path will sound for 10 seconds and the output current will display in mA.

a.Solid tone = Good signal.

b.Fast Beep = Moderate signal.

c.Slow Beep = Minimal signal.

d.No tone = Poor signal

7.The frequency will flash alternately with the current of the target conductor on the display.

8.Trace the signal path with the receiver. (See Receiver Operations, page 8.)

3M Dynatel Dyna-Coupler Clamp

If a direct connection to the target facility is not possible, use the Dyna-Coupler clamp to apply the locating frequency on the metallic target conductor. In order to trace a target using the Dyna-coupler method, both ends of the target must be well grounded.

1.While the transmitter is off, attach the coupler cable to the Dyna-Coupler clamp and plug it into the output jack of the transmitter.

2.Clamp the Dyna-coupler around the metallic target. The jaws of the coupler must be fully closed.

3.Select 8 kHz or 82 kHz on the transmitter by pressing the frequency key.

4.Select High Output level for the best signal-to-noise ratio.

5.Trace the signal path with the receiver. (See Receiver Operations, page 8.)

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Contents 3M Dynatel Operator ManualContents Introduction Model Number Included in Equipment Package Optional 3M Dynatel AccessoriesStandard 3M Dynatel 2220M Locator Equipment Packages ➊ ➋ ➌ ➍ Transmitter Battery Installation Transmitter OverviewQuick Start Receiver Battery Installation  Warning➍ ➎ ➌ ➏ ➐ Receiver Overview3M Dynatel Dyna-Coupler Clamp Transmitter OperationsDirect Connection Induction Method Initial Settings Receiver SetupLine Locate Frequencies Selection Default Receiver OperationsPage 50 Hz / 60 Hz ➌ ➍ ➑ ➎ Line Locating ScreenPipe and Cable Locating Depth and CurrentSonde Locating Screen ➌ ➐ ➍ ➎Sonde Locating Pin-Pointing the Sonde Transmitter SpecificationsReceiver Cleaning Instructions EnvironmentalStatement of Intended Use CE ComplianceStatement of Conformity Track and Trace Solutions