Utah Medical Products Finesse ESU-110, Руководство по обслуживанию

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9.4 Repeat section 9.2 for "BLEND 2" mode.
9.5 Repeat section 9.2 for "BLEND 3" mode.
9.6 Repeat section 9.2 for "BLEND 3" mode, using '30' and '75'.
10.0 ELECTRICAL SAFETY TESTS
RF LEAKAGE TEST
10.1 Set patient load on the electrosurgical analyzer to 200 ohms.
Remove the dispersive lead from the dispersive input and
replace with a lead from chassis ground of generator.
10.2 Set cut display to '99' and coag display to '75'.
10.3 Set mode to "CUT" and activate cut switch. Power output
should be less than 4 watts.
10.4 Set mode to "BLEND 1" and activate cut switch. Power output
should be less than 4 watts.
10.5 Set mode to "BLEND 2" and activate cut switch. Power output
should be less than 4 watts.
10.6 Set mode to "BLEND 3" and activate cut switch. Power output
should be less than 4 watts.
10.7 Activate coag switch. Power output should be less than 4
watts.
10.8 Remove ground lead from analyzer.
CABLE FAULT SHUTDOWN
10.9 Reconnect active and dispersive leads to their corresponding
inputs on the analyzer.
10.10 Activate cut switch and remove dispersive pad plug from its
receptacle. Verify that the ESU indicates a lead fault and that
output drops to zero.
10.11 Replace dispersive pad plug and repeat for coag.
CROSS-KEY SHUTDOWN
10.12 Activate the cut and the coag buttons simultaneously. Verify
that there is no output power, a constant high pitch tone is
generated, and the red alarm lamp lights.
900 OHM ALARM TEST
10.13 Remove dispersive pad plug. Note that the ESU will indicate a
cable fault alarm. Plug the test connector jumpered with a
900 ohm resistor into the dispersive pad receptacle. The
alarm should continue to sound.
HIGH POTENTIAL TEST
10.14 Disconnect the active and dispersive leads from the electrosur-
gical analyzer and remove the power cord from the rear of the
unit.
10.15 Set test voltage to 1200 VAC. Connect ground lead of tester to
chassis ground of unit and touch high voltage probe to each of
the two supply line prongs of the power cord receptacle for 1
second. Verify that there is no arcing occurring in the unit.
11.0 HAZARD CURRENT TEST
11.1 Set the safety analyzer to measure chassis leakage, and set the
lead selector of the analyzer to the "SINGLE LEAD" position.
11.2 Plug the power cord from the Finesse ® unit into the test recep-
tacle on the safety analyzer.
11.3 Set Ground to "NORMAL" and Polarity to "NORMAL". Turn
the safety analyzer and the ESU on. Record hazard current
measurement.
11.4 Set Polarity to "REVERSE". Record measurement.
11.5 Set Ground to "OPEN". Record measurement.
11.6 Set Polarity to "NORMAL". Record measurement.
11.7 If any measurement exceeds 100
μ
A, analysis and repair of the
problem should be done.
Finesse Service Manual
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