Belmont PHOT-X IIs 505, Installation Instructions Manual

Page: 31 / 36

APPENDIX 2 : MAINTENANCE CHECK LIST
-2 9 -
Parameter Acceptance limit Frequency Procedures when failed OK/NG
1. Line voltage Confirm the line voltage is within
±10% of rated voltage. Confirm
the voltage drop during exposure
is within 5% (for 100, 110, 120V)
Yearly Connect to the power supply
within ±10% of rated voltage.
Check disconnection of wire or
connection failure. Repair cable
connection as needed.
2. Tube current Confirm the measured mA
value indicated on the LED
window is within the rated
value ± 1 mA.
Yearly Perform MA adjustment.
(Refer to page 25 of Installation
manual.)
3. Tube potential Confirm the measured kV
value indicated on the LED
window is within the rated
value ±10%.
Yearly Check the tube potential
compensation (CP) values are
same as the values on the label in
the head yoke.
4. Wall mounting
plate
Confirm the wall plate is firmly
fixed to the wall.
Yearly If bolts are loose, find the reason
why bolts became loose, take
counter measure that prevents
bolts become loose.
5. Arm mounting
bracket
Make sure that the arm
bracket is firmly attached
to the wall plate.
Yearly If bolts that fix the arm bracket to
the wall plate are loose, find the
reason why bolts became loose,
take counter measure that prevent
bolts become loose.
6. Dosimetry Save the image that was taken
under appropriate conditions as
a reference image.
Compare a newly taken image
with a reference image to
assure the image quality.
Weekly If the image quality is found poor
comparing to a reference
image, check the condition of
image receptor (film, sensor or
imaging plate), image
developer (developing fluid,
dental film developer, PC or
scanner). If they are OK, then
set appropriate film / sensor
speed by referring to page 19 of
installation manual.
7. Horizontal arm Confirm that horizontal arm is
firmly inserted to the arm
bracket. Make sure the
retaining bolt is firmly inserted
to the arm bracket.
Daily
(before use)
If the retaining bolt is loose, find
the reason why bolt became
loose, take counter measure that
prevent the retaining bolt become
loose.
8. Head Confirm the head can be
smoothly positioned.
Daily
(before use)
Adjust the brake screws by
referring to page 16 of
installation manual.
9. Balance arm Confirm the balance arm
moves smoothly without
making noise.
Daily
(before use)
Adjust the tension of the balance
arm by referring to page 16 of
installation manual. If the
balance arm makes noise, apply
grease.
or 3 % (for 220, 230, 240V).