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Revision D 250 Series Maternal/Fetal Monitor 4-11

2020551-001

Maintenance: Electrical Safety Tests

3. Verify the following:

 < 300 µA (100, 120, 220, 230, or 240 VAC monitors)

4. Record the primary leakage for the following conditions:

Patient-to-Ground Leakage for ECG

1. Connect an ECG test body to the monitor’s front panel ECG input. The ECG test

body can be shorted MECG cable, or the assembly leakage cable.

IMPORTANT

TEST CABLES—If you use transducers in lieu of the assembly leakage

cable, and you are testing a Model 129/129F Monitor, you must test both

FECG and MECG.

2. Set the fixture’s Leakage switch to Patient.

3. Turn ON the monitor using the monitor’s power switch.

4. Verify the following:

 < 50 µA (100, 120, 220, 230, or 240 VAC monitors)

5. Record the patient-to-ground leakage for the following conditions:

Table 1. Unit to Primary Leakage Conditions

Neutral Ground Power (Polarity)

Closed Closed Normal

Closed Open Normal

Closed Open Reversed

Closed Closed Reversed

Open Closed Normal

Open Closed Reversed

Table 2. Patient-to-Ground Leakage Conditions for ECG