3M 2210E - Manual (Page 5)

TRANSMITTER BATTERY TEST
To test the Batteries, hold down and listen to the tone (solid
tone=good; beeping tone=low; no tone=replace batteries).
Note: The battery test indicates battery condition for normal output
levels. If the unit resets when the high output level is selected, use the
normal output level or replace the batteries.
Page 4
LOCATING A BURIED CABLE
Transmitter Setup
Note: Key descriptions can be found inside the Transmitter lid.
Perform a battery test and then connect the Transmitter using one of the
three methods below to put tracing signal on a cable.
DANGER!
Check for stray voltage before attaching Transmitter. Voltage greater
than 240 volts will damage equipment and cause personal injury and
death. Follow standard procedures for reducing the voltage.
WARNING!
Potential for electrical shock exists when handling connecting cables
while the Transmitter is in the TRACE, FAULT or TONE modes.
Turn the Transmitter off before handling connecting cables.