Product Specifications
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Digital radiography system, dental C10819 Series
(Negative) and storing for a fixed accumulation time and then outputs the data. At
this time, this accumulation time is setup beforehand in the main unit similar to that
of (1) Internal Synchronization Mode. The edge polarity of the external trigger signal
at this time is only negative logic (Negative).
(3) External Trigger Level Mode ("EXT.LEVEL1" Mode)
This mode fetches the data in synchronization with the external trigger signal. How-
ever, the external trigger signal itself is entered from the sensor unit. In this mode
also, this external trigger signal performs dummy scanning by pulses in synchroni-
zation with the X-ray radiation start time, till the external trigger signal is entered by
the Sensor. Immediately after the external trigger signal is entered, the Sensor per-
forms storing for a time equal to the pulse width and then outputs the data. The
polarity of the external trigger signal at this time is only negative logic (Negative).
Accumulation Time
Because of the Sensor accumulation time adjustment function of the hardware, it
can be varied by every 1 msec step in the range of 1 to 65,535 msec. However, in
case of External Trigger Edge Mode(EXT.EDGE1), the accumulation time is in the
range of 41 to 65,535 msec. Also this setup is valid only when the Internal Synchro-
nization Mode (INT) and External Trigger Edge Mode (EXT.EDGE1) are setup. This
setup value corresponds to the "Exposure Time" of "6.3 Data Acquisition Timing
Chart".
Operational mode
This function allows the user to set this product in 4 operational modes. However,
("Data Transfer Mode" mode is automatically performed in the main unit. Also, each
of the operational modes is separated in different display by STATUS Display LED
mounted on to the main unit.
(1) "Suspend Mode"
The main unit can be safely removed from the PC. It is a normal operational mode
of the USB.
(2) "Idle/Sleep Mode"
The status when main unit power is on, in other words it is connected to the PC, the
sensor unit can be disconnected or connected.
When do not data acquisition, set mode for this mode(Idle/Sleep).
(3) "Standby Mode"
It is the standby state wherein data acquisition is enabled. At this time, the Sensor
sweeps out the dark current, in other words it performs dummy scan operation.
When make the transition to standby state, set mode for this mode(Standby) at least
60 seconds before data acquisition.
(4) "Data Transfer Mode"
The Sensor takes the X-ray images and transfers the data to the PC.
