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10 • Maintenance and servicing
80116-276_V24169
2022-01
User manual and visual inspections
• Test specimen and accessories (where enclosed) undamaged exter-
nally.
• Pressure regulator externally intact with no leaks.
• User manual present.
• All labels on the test specimen (conformity declaration mark, rating
plate, and all wording) present and readily legible.
Tests to be conducted in accordance with the national
specifications and regulations
Grounded conductor test • Ground terminal to chassis.
• Ground terminal to potential equalization pin.
Leakage current
measurement
• Ground leakage current, normal condition (N.C.).
• Ground leakage current, single-fault condition (S.F.C.).
IMPORTANT! For the following tests close the output relays of the unit
with the “TP relay” test program.
• Patient leakage current, normal condition (N.C.).
• Patient leakage current, single-fault condition (S.F.C.).
Performance tests
Test setup
• The test specimen is connected to the power supply via a VIO electro-
surgical unit.
Test procedure
Pushbuttons /
acknowledgement tone when
pressed
1. Check all pushbuttons (Focus buttons, Purge button) on the test
specimen to make sure they are operating properly. Press each button
at least twice. There must be an acoustic signal (= acknowledgement
tone) every time a button is pressed.
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