General Tools CT103 User Manual

MULTI-VOLTAGE

LINE TESTER

USER’S MANUAL

CT103

Please read this manual carefully and

thoroughly before using this product.

KEY FEATURES

• Different visual indications of eight
common voltages—four AC and
four DC

• UL approved

• Double-insulated housing and leads;
safe for CAT II 600V use

• Self-storing leads

• Pocket clip on back

SAFETY
INSTRUCTIONS

DANGER

Electric

Shock Risk

Ꮨ Warning Ꮨ

To avoid possible electric shock or
personal injury, and to avoid damaging
the tester or the equipment being
tested:

• Do not use the CT103 in any way not
detailed in this manual or the tester’s
safety features may be compromised.

• Never use the tester to detect the
presence of voltages higher than
500V (AC or DC).

DANGER

Electric

Shock Risk

2

• The CT103 cannot detect the
presence of voltages below 110V.
Use caution whenever detecting AC
voltages above 42VAC

RMS

or DC
voltages above 60VDC. Both pose a
shock hazard.

• Before using the tester, inspect the
case. Do not use the CT103 if the
case is damaged. Look for cracks
or missing plastic. Pay particular
attention to the insulation around
the connectors.

• Do not operate the tester around
explosive gas, vapor, or dust.

• When using the probes, keep your
fingers behind the finger guards.
Never touch the metal ends of the
probes when making a measurement.

OPERATING
INSTRUCTIONS

To detect the presence of AC or DC
voltage and identify its level, insert the
test leads into an electric outlet (see
Fig. 1 on the bottom of the next page)
or carefully touch the leads to two
points of an energized circuit.

3