General Testing Information
6-2 Force 2 Service Manual
Important
General Testing Information
When removing the Power Supply
board, please refer to Schematic 1
for proper hardware installation.
Use a star washer in the location
indicated, for grounding. The
Force 2 generator rating is not for
continuous duty operation. The
recommended duty cycle is 50%
(15 seconds on, 15 seconds off).
(Maximum ON time at a power
setting of 100 is two minutes.)
When testing, follow proper testing procedures in order to duplicate
manufacturer test data. Keep test leads as short as possible. Lead
inductance and stray capacitance can affect meter readings adversely. Use
of uncompensated scope probes may cause large errors in measurements.
When measuring microampere leakage currents, accidental capacitive or
inductive coupling may cause order-of-magnitude error in the observed
values.
Perform the leakage current and ground resistance tests before returning
the generator to clinical use.
Warning
Take appropriate precautions (such as use of isolated tools and equipment; use
of the “one hand rule,” etc.) when taking measurements or troubleshooting the
generator.
Electric Shock Hazard Do not touch any exposed wiring or conductive surface
while the generator is disassembled and energized. Never wear a grounding
strap when working on an energized generator.
Notice
The generator contains electrostatic sensitive components. When repairing the
generator, work at a static control workstation. Wear a grounding strap when
handling electrostatic sensitive components. Handle the circuit boards by their
nonconductive edges. Use an antistatic container for transport of electrostatic
sensitive components and circuit boards.
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