Operating instructions – General Tools and Instruments CT102 User Manual
Page 3
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damage. Use caution when detecting
AC voltages above 42VAC
RMS
.
• Before using the tester, inspect the
case. Do not use the CT102 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
Attach the clip leads across a low-
voltage device (a doorbell transformer
or relay, for example) or any two points
in a low-voltage DC circuit. The bulb
will light to indicate the presence of
5 to 50VDC.
3
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