Fresenius Medical Care 5008, Руководство по обслуживанию

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Chapter 6: TSC / TMC / Maintenance
Fresenius Medical Care 5008 SM 1/08.04 6-25
Additional requirements:
If the device leakage current, scaled to the nominal voltage, is higher than 90 % of the
admissible alarm limit (450
µ A), the last measured value or the first measured value
must additionally be considered for the rating.
If the device leakage current has considerably increased since the last measurement
or has continuously increased since the first measurement (creeping deterioration of
the insulation), or if the sum composed of the current value plus the difference since the
last measurement is > 500
µ A, the measurement has not been completed successfully.
Example 1:
Device leakage current: 470
µ A
Last measured value: 450 µ A
470 + (470 – 450) = 470 + 20 = 490; is OK
Example 2:
Device leakage current: 470
µ A
Last measured value: 390 µ A
470 + (470 – 390) = 470 + 80 = 550; not passed
8 Final inspection and testing
TSC MA 8.1 T1 test performed with all options.
TSC MA 8.2 Disinfection performed.
TSC
TMC MA No. Description