Tuttnauer 3545 - 11 Maintaining and Replacing Parts; Safety Tests after Repair

Page 34 of 63 Pages
11. MAINTAINING AND REPLACING PARTS
11.1 Safety Tests after Repair
ATTENTION!
After every repair or dismantling the enclosure, the autoclave
should pass two safety electrical test by the Service Engineer. The
following shall be performed:
1. Enclosure Leakage Current Test.
Every autoclave should pass this test as follows:
1. Connect the electrical cord to the autoclave.
2. Turn on the main switch and the circuit breaker.
3. Short-circuit the L and N pins on the cord's plug.
4. Connect the Short-circuit pins to the L pole on the Megger.
5. Connect the earth pins to the earth pole on the Megger.
6. Impose an electrical potential of 500-1000V on the tested
autoclave. The insulation resistance should be at least 2 MΩ.
The test is successful if there was no leakage.
2. Protective Earth Impedance Test
1. Connect the grounding pin of the power cord plug to one pole
of an Ohmmeter.
2. Connect any other metallic part (preferable – the metallic part
of the locking screw) to the second pole of the Ohmmeter.
3. The resistance should not exceed 0.3 Ω.
After performing these tests, the Service Engineer should complete and
sign the Work Order.