Preheating / Warm-Up - Teledyne CP Series User Manual

User Manual
CP Series
Version 3.1 – June 2020
6. Ready to start
This message is displayed when PowerBox has detected the connected CP SERIES generator and when
it is ready to make a shot.
Note:
The START button must be pressed between 0.3 and 3 seconds to be activated. This is done so to prevent
accidental activation by an object falling on the START button.
The STOP button will always respond immediately without any limitation of the duration of pressing the red
STOP button. STOP button must be released to start an exposure with the START button.
4.2.3 P
REHEATING
The preheating, also called warm-up, is a procedure which is required to progressively re-establish the
maximum vacuum level inside the X-ray insert when it has not been used for more than 8 hours. During
this preheating procedure, the high voltage and insert current is gradually applied to the insert and built up
to the maximum power output or the selected power output.(kV and mA) This procedure is fully automatic
and the required preheating time is calculated by the PowerBox based on the kV settings during the last
exposure, the idle time of the CP SERIES generator since that last exposure and the set kV. The data
which is required for the calculation of the preheating time is taken from the CP SERIES's internal memory.
This way, your CP SERIES will be correctly pre-heated in the minimum amount of time as possible, even
when the CP SERIES generator was previously used with another PowerBox.
It is not possible for the user to avoid the preheating procedure since bypassing it would lead to serious
defects and malfunction of the equipment.
The preheating time is mainly based on the kV setting and idle time of the CP SERIES generator. The
calculation follows these general rules of thumb:
no preheating is required for 8 hours or less idle time
•
• 5 minutes preheating is required after 8 hours
for each additional day of idle time, 1 additional minute of preheating time is required
•
• the maximum duration of the preheating is limited to 60 minutes
• The required preheating time will be less if the programmed kV is lowered.
No preheating is required for kV settings up to and including 60kV.
•
To start the preheating, make sure the carrousel is in the preheating / lead cap position and press the
START button.
Note:
It is recommended to preheat the generator up to maximum kV once a month. In case the generator has
been stored unused for more than 6 months, then the preheating procedure is replaced by a conditioning
procedure. The principle is the same than for a preheating, but it is divided in several step and the time to
achieve it is highly expended.
When a conditioning is required, the Power Box displays "Condi 1/XX" where XX is the number of steps
required, depending of the idle time. When in this case, the operator must press the "Start" button to achieve
/ W -
ARM UP
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