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Patient Auxiliary Current

This test measures patient auxiliary current in accordance with IEC60601-1, clause 19, for

Class I, type CF equipment. The applied voltage for IEC60601-1 is 264 volts, 50 to 60 Hz.

Patient auxiliary current is measured between each ECG test lead and between each

sensor connection for all possible connections.

Note: Keep the patient test cable length as short as possible during the leakage test.

Note: This test requires the same test cables for each patient connector as described in

the section “Patient Leakage Current”.

1. Configure the electrical safety analyzer as recommended by the electrical analyzer’s

operating instructions.

2. Connect the monitor’s AC power cord to the electrical analyzer as recommended by the

electrical analyzer’s operating instructions.

3. Connect the patient test lead combination in Table 7 to the appropriate input connector

on the electrical analyzer.

4. Turn on the monitor.

5. Perform patient auxiliary current test per Table 8 as recommended by the electrical

analyzer’s operating instructions.

6. Repeat the patient auxiliary current test for each test lead combination as listed in

Table 7 and measure each patient auxiliary current.

Table 7. Test Lead Combinations

First Test Lead Second Test Lead

ECG #1 (LA) ECG #2 (LL)

ECG #1 (LA) ECG # 3 (RA)

ECG #2 (LL) ECG #3 (RA)

ECG #1 (LA) Temperature

ECG #2 (LL) Temperature

ECG #3 (RA) Temperature

ECG #1 (LA) SpO

ECG #2 (LL) SpO

ECG #3 (RA) SpO

Temperature SpO

Table 8. Allowable Leakage Current

Test Condition Allowable Leakage Current (microamps)

Normal Condition (NC) 10

SFC Open Supply (OS) 50

SFC Open Earth (SFC OE) 50

Normal Condition RM (NCRM) 10

SFC Open Supply RM (SFC OSRM) 50

SFC Open Earth RM (SFC OERM) 50

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 109 110

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