GE MAC 600 SPY, Руководство по обслуживанию

Страница: 74 / 127

4-24 MAC
TM
600 Revision G
2047426-002
Maintenance: Check out Procedure
Electrical Safety Tests
The suggested safety analysis tests comply to the international standard
IEC 60601-1. The tests should be performed with safety testing
instruments with measuring circuits calibrated according to IEC 60601-
1. To ensure personal safety, refer to the “
testing instrument’s user
documentation” .
Perform the tests under normal ambient conditions of temperature,
humidity and pressure, with line voltage.
The leakage currents correspond to 110% of rated voltage for the tested
unit. If this is not taken into account when performing leakage tests, the
measured values must be calculated.
Recommended Test Equipment

Safety tester for measurements according to 60601-1.
Recommended Test Schedule

After initial setup.

Once every 12 months, thereafter, as part of a regular maintenance
plan.

Whenever power sources are affected by servicing.
Ground Resistance Test
Connect the power cord to the ACDC adaptor and adaptor out put to the
unit. Check for the resistance between power cord ground and printer
metal base. If the value of resistance is greater than 1 Ohm, then it
results in failure.
NOTE
The MAC600 is categorized as a Class I device.
NOTE
All shipments of MAC 600 devices to China are Class I. However,
for all other countries, the MAC 600 installed base is Class II if
the serial number is less than SF713500001PA.
Leakage Current Tests
The following electrical diagram shows the Measuring Circuit [M]
required for leakage current. The reading in mV corresponds to mA
(leakage current). The safety tester instruments generally work with this