3M 2250M-iD User Manual

78-8130-6150-0 Rev G 

21

Perform a battery test. Use one of the following three methods to produce a trace signal 

on the target pipe or cable.

A. Direct Connect Method

! WARNING

This WARNING applies to the use of the Direct Connect Cables and the Transmitter.
To avoid potential shock, or electrically damaging the Transmitter, when setting up the 

Transmitter to locate using the Direct Connect method, follow these basic steps;
•   ALWAYS plug the Direct Connect Cable into the Transmitter Output Jack [T-6] BEFORE 

connecting the leads to the cable/pipe to be located and the ground rod.

  – Connect the red lead to the cable/pipe. 
  – Connect the black lead to ground rod.
A POTENTIAL FOR ELECTRICAL SHOCK, AND/OR TRANSMITTER ELECTRICAL DAMAGE, EXISTS 

WHEN USING THE DIRECT CONNECT CABLE ON CABLES ENERGIZED WITH ELECTRICAL POWER 

IF THE ABOVE INSTRUCTIONS ARE NOT FOLLOWED. USE APPROPRIATE SAFETY PROCEDURES.
CHECK VOLTAGE BEFORE CONNECTING TRANSMITTER. VOLTAGE HIGHER THAN 240 VOLTS WILL 

DAMAGE EQUIPMENT. FOLLOW STANDARD PROCEDURES FOR REDUCING THE VOLTAGE.

Plug the direct connect cable into the Output Jack [T-6] of the transmitter. Connect 

the black clip to the ground rod. Place the ground rod in the earth perpendicular to the 

suspected cable/pipe path. If necessary, extend the black lead with the Ground Extension 

Cable (#9043 available separately).

1.  Remove the ground bonding and attach the red clip to the shield of the cable, pipe, 

or target conductor. (If locating power cables, the red clip can be attached to the 

transformer cabinet, or the meter box). Metal contact must be made between the red 

clip and the transformer cabinet or meter box. If painted, some paint will need to be 

removed/scraped off to allow metal-to-metal contact.