12 Maintenance
ASTOTHERM PLUS Instructions for Use
39
12.1 Recurrent tests
A recurrent test must be carried out on the ASTOTHERM PLUS warmer at least
every 24 months to ensure the safe operation of the warmer.
Please ensure that all the applicable national directives (e.g. IEC/EN 62353) for
checking the safety of medical equipment are observed additionally and that the
test equipment is calibrated.
Necessary test equipment:
Standard medical electrical safety tester
Digital clinical thermometer (max. diameter of probe tip 3.5 mm and
accuracy ± 0.1°C)
The following sections describe how the tests are to be performed. The attached
test protocol (see
chapter 12.3 Test protocol
) can be used.
Test 1
Visual inspection
Required
Actions
Check the following items:
Complete and legible labeling.
No damage to the housing.
Control panel in good condition. (Since the front foil prevents
fluid from entering the unit, it is important that its full surface
adheres securely to the housing.)
No defects in the power supply cord and mains connector
insulation, with clean and non-corroded contacts.
Test 2
Protective earth resistance
Required
Actions
Measure the resistance between the earth pin on the power plug
and the connector for potential equalization, located on the rear
side of the housing.
For detailed information performing this test see
chapter 12.2
Result
The test is successful when the limits are met in accordance with
the test protocol.
Test 3
Insulation resistance
Required
Actions
Measure the resistance of the insulation between the live parts
and the parts which are connected to earth.
For detailed information performing this test see
chapter 12.2
Result
The test is successful when the limits are met in accordance with
the test protocol.
