Philips HD11 - ECG Lead Leakage Current Test (Source)

4535 612 10261 HD11 Service Manual Page 148
CSIP Level 1 Performance Tests: Electrical Safety Tests
3. Take ground wire leakage current measurements in an open ground condition, with both
normal and reverse polarity. Record the highest value, and compare it to the limit specified
for Normal condition in Figure 6-2 on page 147.
4. Take ground wire leakage current measurements in an open ground and open neutral condi-
tion, with both normal and reverse polarity. Record the highest value, and compare it to the
limit specified for Single Fault condition in Figure 6-2 on page 147.
A reading higher than acceptable limits can indicate a problem with the power cord, with its
associated connections, or with the power transformer.
ECG Lead
Leakage
Current Test
(Source)
This test checks ECG leads connected to the optional Physio module for electrical leakage.
Figure 6-3 on page 149 shows the basic electrical concept of the ECG Lead Leakage Current
test. Use a safety analyzer and complete the procedure that follows the figure.
WARNING This test can be hazardous. Avoid any contact with line voltage. Any time during the test that the
ground connection is open, do not touch the chassis or the patient cable.