a. Check the Patient Lead Leakage Current to Ground. Refer to figure 2-6.
Perform the following steps:
(1)
Set the mode switch to ECG.
(2) Connect the patient leads to the ECG binding posts on the top panel of the
safety analyzer.
Figure 2-6. Electrocardiograph patient lead test connections.
(3) Set the ECG selector switch to ALL. Set the corresponding switch of the
UUT to the same position. Measure the leakage current from all leads to ground. Make
patient lead current leakage measurements for the following conditions with normal
polarity selected.
(a)
UUT power off, grounded.
(b)
UUT power off, ground open.
(c)
UUT power on, grounded.
(d)
UUT power on, ground open.
(4) The next five switch positions measure the leakage current of individual
leads to ground.
b. Check Interlead Leakage Current. Refer to figure 2-6. Perform the following
steps:
(1)
Set the mode switch to ECG.
MD0356
2-8