Testing
WARNING: DANGER OF ELECTRIC SHOCK. DO NOT TOUCH ANY EXPOSED PARTS
WHILE CONDUCTING THIS TEST. DO NOT TOUCH ANY PART OF YOUR
BODY WITH THE CONTACTS OF THE PROBES.
This equipment should not be used if you have a hearing aid or pacemaker fitted, due to the possibility
of electromagnetic disturbance.
Specification:
1) 1.5 kVac is applied between the live and neutral wires (connected together), and
the appliance's earthed parts. No breakdown should occur.
2) 4k Vac is applied between the live and neutral wires (connected together) and the
appliance's non-earthed enclosure. No breakdown should occur.
Leakage Circuit Test (USA)
Measure the risk currents in accordance with the ANSI-AAMI ESI-1993 Standard (American National
Standard Safe Current Limits for Electromedical Apparatus) or as specified in UL
2601-1).
9
Mattress Pressure and Function Test
This procedure must be carried out after a service or major repair of a mattress. To test/calibrate the
mattress correctly, the following equipment is required:
Table 40 - Mattress Pressure and Function Test Equipment
Pressure/Flow meter
Portable inflation test unit
Stop watch
Test Procedure
9.1
Connect a portable inflation unit to the mattress.
9.2
Fully inflate the mattress and connect it to a pressure/flow meter and test to the following
requirements:
•
Inflation test pressure 80 to 90 mmHg
•
Inflation stabilisation period 30 seconds
•
Inflation test period 3 minutes
•
Leak rate must not exceed 3 mmHg
Note: If the mattress fails the tests, investigate as to the reason why, repair any faults and re-test in
accordance with the test specification.
Chap 6
Page 14
Equipment
SER0001
Nimbus/DFS Service Manual
Issue 2
April 2010
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