GE Logiq 7 Service Manual

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 10-7 - Electrical Safety Tests 10-13
10-7-2 GEMS Leakage Current Limits
The following limits are summarized for NFPA 99 (For USA) and IEC 60601-1 Medical Equipment 
Safety Standards. These limits are GEMS standards and in some cases are lower than the above 
standards listed.
 
 
NOTE: *Mains Applied refers to the sink leakage test where mains (supply) voltage is applied to the 
part to determine the amount of current that will...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
10-14Section 10-7 - Electrical Safety Tests
10-7-3 Outlet Test - Wiring Arrangement - USA & Canada
Test all outlets in the area for proper grounding and wiring arrangement by plugging in the neon outlet 
tester and noting the combination of lights that are illuminated. Any problems found should be reported 
to the hospital immediately and the receptacle should not be used.
The Dale 600 has self-contained lamps designed for testing the...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 10-7 - Electrical Safety Tests 10-15
10-7-4 Grounding Continuity  
Measure the resistance from the third pin of the attachment plug to the exposed metal parts of the case. 
The ground wire resistance should be less than 0.2 ohms. Reference the procedure in the IEC 601-1.1.
10-7-4-1 Meter Procedure Follow these steps to test the ground wire resistance.
1.) Turn the LOGIQ™ 7 unit OFF.
2.) Plug the unit into the meter, and the meter...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
10-16Section 10-7 - Electrical Safety Tests
10-7-4-2 Dale 600 - Ground Continuity
The Dale 600 measures line cord resistance from the third pin of the attachment plug to the meter’s 
Chassis Cable clamp. Test the grounding continuity of the system to all exposed metal parts in 
accordance with the IEC 601-1.1 procedure as above. Refer to the Dale 600 Instruction Manual for 
meter self tests and operation. Record measured resistance of...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 10-7 - Electrical Safety Tests 10-17
10-7-5 Chassis Leakage Current Test
10-7-5-1 Definition
This test measures the current that would flow in a grounded person who touched accessible metal 
parts of the bedside station if the ground wire should break. The test verifies the isolation of the power 
line from the chassis. The meter is connected from accessible metal parts of the case to ground. 
Measurements should be made with the...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
10-18Section 10-7 - Electrical Safety Tests
10-7-5-3 Dale 600 Meter Procedure
When measuring system chassis currents with the Dale 600, always use the CHASSIS selection of the 
external/chassis function switch. This requires the ground clip lead and changing the meters switches 
in accordance with the IEC 601-1.1. Refer to the Dale 600 Instruction Manual for meter self-test and 
operation. Record the highest leakage current measured....

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 10-7 - Electrical Safety Tests 10-19
10-7-5-4 Data Sheet for Chassis Source Leakage Current
The test passes when all readings measure less than the value shown in Table 10-14. Record all data 
on the PM Inspection Certificate.
10-7-6Isolated Patient Lead (Source) Leakage–Lead to Ground
10-7-6-1 Definition This test measures the current which would flow to ground from any of the isolated ECG leads. The 
meter simulates a patient...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
10-20Section 10-7 - Electrical Safety Tests
10-7-6-2 Generic Procedure
Measurements should be made with the ground open and closed, with power line polarity normal and 
reversed, and with the unit Off and On. For each combination, the operating controls such as the lead 
switch should be operated to find the worst case condition.
 
10-7-6-3 Dale 600 Meter ProcedureThe Dale 600 provides five snap type ECG buttons for testing patient...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 10-7 - Electrical Safety Tests 10-21
10-7-6-3 Dale 600 Meter Procedure (cont’d)
5.) Set the meters “FUNCTION” switch to LEAD TO  GROUND position to measure the patient lead to 
ground leakage current.
6.) Select and test each ECG lead positions (except ALL) of the LEAD selector, testing each to the  power condition combinations. Figure 10-1 ECG Leakage Current Test
Table 10-19  Testing Power Conditions
ECG PowerMeter’s Polarity...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
10-22Section 10-7 - Electrical Safety Tests
10-7-6-3 Dale 600 Meter Procedure  (cont’d)
7.) Record the patient lead to ground leakage current measured on the data sheet.
8.) Set the meters “FUNCTION” switch to LEAD TO LEAD position to measure the lead to lead leakage  current.
9.) Select and test each ECG lead positions (except ALL) of the LEAD selector, testing each to the  power condition combinations.
10.) Record the lead to lead...