Owandy Radiology i-max touch, Руководство по обслуживанию

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SERVICE MANUAL
Troubleshooting
I-Max Touch 8-37
8.3.4.3. Cassette zero
This function is not active on the digital mode; if selected it will generate
an error message.
8.3.4.4. Primary collimator setup
WARNING:
In this menu the emission is enabled; it starts with the X-ray button
press, so take care of this situation.
This function allows centering the offsets of the linear slit collimator.
Once the patient centering (>0<) key is pressed, the following message is
displayed:
P C C Z E R O [ Y Y ] a
Z E R O O F F S

x x x x x
where:

"YY" is the stepper motor speed, that can be changed using the
parameter increase/decrease keys.

"a" is the status of the zero optical barrier; 1 means engaged (i.e.
barrier interrupted), 0 otherwise.

"xxxx" is the current value of the offset, that can be changed with the
left/right keys.
This function is used to check the beam alignment; the emission is
started by the X-ray button pressing and the exposure parameters can
be set by pressing the key ; when it has been pressed, the
normal change procedure to set manual exposure parameters is followed.
NOTE:
The position of the primary slit is set to the correct value during the
factory final test; changes on the stored value must be done only in case
of:

Replacement of one part of the linear slit collimator (motor, zero
barrier sensor, etc.); in this case the beam must be aligned to the
sensor entrance acting on the offset value.

Replacement of a defective tubehead; in this case, the beam aligned
moving the tubehead
leaving the offset value unchanged.
