Belray 96 - Post Installation Confirmation; Power Supply Voltage Confirmation; Tube Current Confirmation; Exposure Warning Lamp and Buzzer Confirmation

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SECTION SIX : POST INSTALLATION CONFIRMATION
[1] CONFIRMATION OF POWER SUPPLY VOLTAGE
As specied in Electrical Requirements (Page 5), power supply voltage must be within the rated line
voltage ± 10%. Conrm the power supply voltage again before turning on the unit.
1. Open the front panel of control box by loosening two screws on top of the control box.
2. Set the range of digital multi meter at 300V AC, connect probes of multimeter to L and N of
terminal block of control box.
3. Conrm that the reading is rated line voltage ± 10%.
NOTE :
096 X-ray can not be operated unless the power supply voltage is within this range.
[2] CONFIRMATION OF TUBE CURRENT
Model 096 x-ray incorporates self diagnose system to check if the tube current is within specied
range both at the beginning of exposure and during stabilized period.
1. While depressing tooth selection switches T1, T4 & T5 together, turn on the main power switch.
2. Exposure time of 0.50 is displayed and ready light is on.
[If not, turn off main power switch and repeat 1.]
Then release T1, T4 & T5 switches.
3. Make an exposure by depressing hand exposure switch.
WARNING
:
X-RADIATION IS GENERATED FOR 0.5 SEC.
4. Conrm that "F I n" is displayed at exposure time display window.
Then, turn off the main power switch.
5. If "PH.
" and "EP. " are displayed alternately, follow Step 6 through 7 below.
6. When "PH.
" and "EP. " are displayed alternately, leave the unit for about 30 seconds until
display returns to "0.50". Then make an exposure again and conrm that "F I n" is displayed.
7. Repeat Step 5 & 6 until "F I n" is displayed.
[3] CONFIRMATION OF EXPOSURE WARNING LAMP & BUZZER
A. EXPOSURE WARNING BUZZER
1. Make an exposure and conrm that the exposure warning buzzer located within the control box
is activated during the entire exposure.
B. EXPOSURE WARNING LAMP
Exposure warning lamp is located on the front panel of the control box,
1. Make an exposure and conrm that the warning lamp illuminates during the exposure.
[4] CONFIRMATION OF LINE VOLTAGE REGULATION
1. Make sure that main power switch is "OFF".
2. Open the front panel of control box by loosening two screws on top of the control box.
3. Set the range of digital multi meter at 300V AC, connect probes of multimeter to L and N of
terminal block of control box.
4. Turn the main power switch on, and set the exposure time at 2.00 sec. with manual switch
.
5. Record the no-load line voltage (VN) indicated by the multimeter before exposure.
6. Make an exposure and record the load voltage (VL) indicated by the multimeter during exposure.
WARNING
:
X-RADIATION IS GENERATED FOR 2 SECONDS.
NOTE:
Read the multimeter when the value is stabilized (about one second after exposure).
7. Calculate line voltage regulation R (%) in the formula below:
VN - VL
R = X 100 Record this value in "Assemblers Installation Report".
VL
NOTE:
LINE VOLTAGE REGULATION MUST NOT EXCEED THE RANGE OF 2~5% for
120V, 0~3% for 220~240V. IF IT IS GREATER THAN THIS RANGE, THE SIZE OF
THE POWER SUPPLY WIRES MUST BE INCREASED.