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IRECTION GB091046, REVISION 2 VIVID E9 / VIVID E7 BT’13 SERVICE MANUAL
Chapter 5 - Components and functions (theory) 5 - 23
Section 5-6
Air Flow control
5-6-1 General description
5-6-1-1 Air Flow components
The Air Flow control includes the following components:
• Air filter in the air intake on the rear of the of the VIVID E9 / VIVID E7.
• Air filter in the air intake below the fans of the of the VIVID E9 / VIVID E7 (ref. next step).
• Fan unit on bottom of the VIVID E9 / VIVID E7.
• Two fans on top of the Card Rack.
• Fans inside the BEP and the Main Power Supply.
• Temperature sensors several places inside VIVID E9 / VIVID E7.
• Temperature control software on the BEP
5-6-1-2 Software control
Software, running on the BEP, samples the temperature on each sensor.
• If the temperature rises, fan speed (and air flow) is increased.
• If the temperature decrease, the fan speed decrease.
If the temperature increase over a pre-defined level for each sensor, the scanner will shut down. It will
then need to rest for a period of time, until the temperature inside the unit has decreased to an
acceptable value, before it is possible to turn it on again. If the VIVID E9 / VIVID E7 power down due to
high temperature inside the unit, it may indicate that the air filters need to be dusted or a failure situation.
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