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SAFETY NOTICE
SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
The AC line cord of power supply connect to terminal.
And plug the AC line cord of power supply into a 120V
AC outlet. Use an AC voltmeter, having 5000 ohm per
volt or more sensitivity.
Connect a 1500 ohm 10W resistor, paralleled by a
0.15uF
150V AC capacitor between a known good earth ground
(water pipe, conduit, etc.) and all exposed metal parts
Measure the AC voltage across the 1500 ohm resistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3V. A reading
exceeding 0.3V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with AC line reversed.
NEVER RETURN A RECORDER TO THE CUSTOMER
WITHOUT TAKING NECESSARY CORRECTIVE
ACTION.
AC VOLTMETER
(5000 ohm per volt
or more sensitivity)
Good earth ground
such as a water pipe,
conduit, etc.
READING SHOULD NOT EXCEED 0.3V
Test all exposed metal.
Voltmater Hook-up for Leakage Current Check
TO AC OUTLET
1500 ohm
10W
0.15u(micro)F 150V AC
DIGITAL RECORDER
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.