General Tools ST400 User Manual v.2
SCREWDRIVER
AC/DC VOLTAGE
TESTER
USER’S MANUAL
ST400
Please read this manual carefully and
thoroughly before using this product.
KEY FEATURES
• Visual indication of 80 to 250V
(AC or DC)
• Easy to use; no test leads or battery
needed
• UL approved
• Double-insulated housing
• Pocket clip
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 ST400 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
250V (AC or DC).
DANGER
Electric
Shock Risk
2
• The ST400 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 ST400 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
1. Insert the tip of the screwdriver into
the “hot” side of a 110VAC or
220VAC outlet, or touch the tip to a
point on a live circuit.
3
Loading...