3M 2273E - Manual (Page 9)

DYNA-COUPLER METHOD
Cable Path
Page 8
Connect the Dyna-Coupler to the Transmitter front panel jack using the
coupler cable.
Clamp the Dyna-Coupler around the cable below any bonds just before
cable enters the earth. The jaws of the coupler must fully close.
Press to turn Transmitter on. Press again to select 8 kHz, 33 kHz or
133 kHz.
Select high output level by pressing . Transmitter setup is finished,
now go to LOCATING A BURIED CABLE - R ECEIVER S ETUP (P AGE 10).