Nellcor OxiMax N 5500, Руководство по обслуживанию, Страница: 30 / 101

Performance Verification
N5500 Service Manual 23
Performance
Verification, N5500
4. Set temperature simulator as follows:
l
Temperature: 37°C (98.0°F)
l
Probe type: Monotherm™ Temperature Probes (Probe accuracy: ±0.1°C)
5. After normal power-up sequence, verify temperature reads 37°C ±0.1°C (98.6°F
±0.2°F if Fahrenheit is selected as temperature units).
6. Turn monitor off.
Note: The accuracy of N5500 temperature measurements is ±0.1°C (±0.2°F) in the
range of 25°C to 45°C and ±0.2°C in the range of 15° C to less than 25° C as
specified in
Specification section. In the procedure above, add the tolerance of
the simulator and the probe to the acceptable range of readings.
3.4 Safety Tests
N5500 safety tests meet the standards of, and are performed in accordance with, IEC
60601-1, Clause 19 (Second Edition, 1988; Amendment 1, 1991-11, Amendment 2,
1995-03), EN60601-1 for instruments classified as Class I and Type CF.
3.4.1 Protective Earth Continuity
This test checks the integrity of the power cord ground wire from the AC plug to the
instrument chassis ground. The current used for this test is less than or equal to 4 Volts
RMS, 50 to 60 Hz, and 25 Amperes.
1. Connect the monitor AC mains plug to the analyzer as recommended by the analyzer
operating instructions.
2. Connect the analyzer resistance input lead to the equipotential terminal (ground lug)
on the rear of the instrument. Verify that the analyzer indicates 100 milliohms or less.
3.4.2 Electrical Leakage
The following tests verify the electrical leakage of the monitor.
3.4.2.1 Earth Leakage Current
This test is in compliance with IEC60601-1 earth leakage current. The applied voltage
for IEC60601-1 the voltage is 264 Volts AC, 50 to 60 Hz. All measurements shall be
made with the power switch in both “On” and “Off” positions.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Perform test as recommended by analyzer operating instructions.