ConMed ExcaliburPLUS PC - Page 64

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4.5.6 Line Frequency Leakage CAUTION: To prevent RF current from
destroying the test equipment and/or affecting
Equipment: These tests are performed most con- leakage readings, set all power settings to
veniently using any good quality biomedical elec- zero.
trical safety tester. If you do not have such a
tester, then it is possible to construct your own 3. With all power controls set to zero, measure
using a millivoltmeter and a simple RC network the leakage current as in step 1 from each of the
constructed according to IEC 60601-1, Clause three active output terminals to neutral (see Table
19.4 e). 4.5) while that output is activated in Cut by the
appropriate footswitch or hand control jumper.
1. Connect the electrical safety analyzer to make Hand control cut activations are accomplished by
the measurements indicated in Table 4.4. connecting a jumper between the lower black jack
and the red jack of the desired hand switchable
2. Since the Excalibur Plus PC monopolar active accessory jack.
outputs are disconnected by relays when the unit
is not activated, active-to-neutral leakage tests
must be performed with the unit activated in
order to be valid.
Leakage Line Case Test
Path Polarity Ground Limit
Bipolar-Neutral Normal Closed 5uA
Bipolar-Neutral Normal Open SuA
Bipolar-Neutral Reversed Closed SuA
Bipolar-Neutral Reversed Open SuA
Return Electrode-Neutral Normal Closed SuA
Return Electrode-Neutral Normal Open SuA
Return Electrode-Neutral Reversed Closed SuA
Return Electrode-Neutral Reversed Open SuA
Chassis-Neutral Normal Open 40uA
Table 4.4 Unkeyed Line Frequency Leakage Tests
Leakage Line Case Test
Path Polarity Ground Limit
Foot Active-Neutral Normal Closed 5uA
¡Controlled Active-Neutral Normal Open 5uA
Active-Neutral ‘Reversed Closed 5uA
Active-Neutral Reversed Open 5uA
Hand Control Active-Neutral Normal Closed 5uA
1 Active-Neutral © Normal Open SuA
Active-Neutral Reversed Closed 5uA
Active-Neutral Reversed Open 5uA
Hand Control Active-Neutral Normal Closed 5uA
2 Active-Neutral Normal Open 5uA
Active-Neutral Reversed Closed 5uA
Active-Neutral Reversed Open 5uA
Table 4.5 Keyed Line Frequency Leakage Tests
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