GE MEDICAL SYSTEMS CT 9800 QUICK SYSTEM
Rev. 1 Direction 18000
4-2-3
7. From the data collected, ensure the following temperature and humidity specifications are met. Should any
specifications not be met, the air conditioning supplier or your local GE service dept. should be contacted.
Temperature and Humidity Specifications
a. Inlet air to computing subsystems
- Main & Auxiliary computer cabinets
- Disk drive unit 60°-70°F operating limits, (15.5°-21.1°C)
b. Table and Gantry X-Ray Subsystems
- Control consoles Camera 60°-75°F operating limits, (15.5°-23.9°C)
c. Media (discs/tapes) Long term storage
-60°-75°F limits, (15.5°-23.9°C)
d. Media Short term storage (1/2 Hour before use)
- In computer environment
e. Relative humidity (All Areas)
- 30%-60% operating limits.
f. Temperature rate 5°F/Hr of Change Max (3°C)
g. Room temperature 5°F Max Gradient (3°C)
h. Relative humidity rate of change
- 5% RH/Hr Max
2-2 - Power Line Checks
1. It is assumed that during the pre-installation site checks, the power source for the system was checked for
mean voltage as well as any line voltage disturbance.
2. During this Functional Check, line voltage should be similarly monitored. In particular, look for...
• Is line voltage in fact the same as determined during the pre-installation check?
• Verify that during day to day operation, mean line voltage does not fall outside of equipment
specifications.
• Look for any line voltage disturbances and in particular, any correlation between disturbances and system
malfunctions such as “Aborts” or other component failures.
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