GE LOGIQ 200 Quality Assurance Manual page 66

GE MEDICAL SYSTEMS
REV 1
2-6 Initial Safety Checks (cont'd)
With the Dale 600 outlet tester, check the wiring arrangement of all outlets in the room or area.
Record the results for the one used by the ultrasound system.
Use the resistance function of the Dale 600 and measure the ground continuity (resistance in ohms) from
the ground pin on the system AC plug to:
Enter the measurement to the Probe Mounting Screw (exposed screw on side of connector)
Enter the measurement to the Console(exposed metal part)
Enter the measurement to the Caster Support (exposed metal part)
Enter the measurement to the Test 4 (exposed metal part)
Enter the measurement to the Test 5 (exposed metal part)
See Section 3-4 for more details.
Check the appropriate box to indicate an overall PASS/FAIL for the ground continuity tests.
NOTE: If any safety checks fail, the problem MUST be corrected prior to continuing the
QA tests or returning the use of the system back to the customer. Any corrective action
should be written up separately and coded appropriately (not as PM service).
2-7 Leakage Current Tests
Perform one source leakage current test to an exposed metal part of the chassis. Also perform the leakage
current checks on transducers 1 and 2.
2-8 Physical Inspection/Cleaning
Indicate YES, NO or N/A for the items in the table on the middle of the page that are to be inspected and/
or cleaned.
Consider the following steps during inspection and cleaning:
1. Wipe Down Exterior Console (Note the location of any controls that are not reset on boot)
Use appropriate cleansers and materials to clean the CRT, keyboards, operator controls, and panels.
2. Look for dirty or inoperative slide pots, backlit indicators that do not light, bad bulbs, dirty or sluggish
trackballs. Check or correct the time and date on the display. This could be an indication of battery
degradation.
3. Remove Power from System: Clean all filters and air pathways: Check for obstructions in any internal
pathways. If any internal or external filters cannot be cleaned, replace as necessary.
4. Clean and Inspect ALL External Cables for Stress-Cuts-Tears.
This includes external power cables – Probe Cables – Patient Leads – Video Interconnect Cables
5. Inspect Wheel Assemblies for wear or damage.
6. Clean transducers and inspect them for excessive wear or damage (document any abnormal wear).
Inspect the patient and operator contact areas of all available probes, noting any cracks or tears.
7. Remove system covers and peripherals, if necessary. Vacuum or blow out dust from all accessible
internal areas.
NOTE: Excessive air pressure or physical contact may cause damage to sensitive
components.
If it is necessary to disconnect any external video cables to remove the system covers, note their
location and label.
ULTRASOUND QUALITY ASSURANCE REFERENCE MANUAL
The ground wire resistance should be less than .2 Ohms.
2-2
2262684-100
See Section 3-3-1 for more details.