Medrad ProVis Mark V, Руководство по обслуживанию

Страница: 22 / 143

Mark ProVis Injection System
4 - 6
Leakage
Check
To insure safe operation of the injection system, an electrical leakage
check must be part of regular maintenance.
Use a commercial leakage tester such as one of the following:
Manufacturer Model
Bio-Tek Instruments, Inc. Model 601 PRO
Electrical Safety Analyzer
Bender Unimet 1000 ST
Bapco IEC601L
1. With the AC ground open, power applied, and the line at normal,
leakage should be less than 100 micro amps at 110V, or 300 micro
amps at 220V.
2. With the AC ground open, power applied and the line reversed,
leakage should be less than 100 micro amps at 110V, or 300 micro
amps at 220V
3. Disconnect the leakage test device.
Ground
Continuity
Check
A ground continuity check must also be a part of regular maintenance
of the injection system.
1. Disconnect the injector from the power source.
2. Using an ohm meter, measure the resistance between the ground
terminal on the power cord and any exposed grounded metal sur-
face of the system. The resistance measured must be less than
0.2 ohms.