MinXray HF100 - Operating the X-ray Unit; Connecting and Powering On; Setting kV and Timer; Radiation Field Adjustment

3. OPERATING PROCEDURES
CONNECTION: After confirming POWER CORD and EXPOSURE SWITCH are usual condition,
connect them to main body of x-ray unit certainly.
(If connector has lock, confirm it is locked.)
Confirm POWER SWITCH is OFF and connect POWER CORD to wall receptacle
of proper mains.
(When you used extension cord, 3.5kW should be obtained.)
POWER ON: Set POWER SWITCH on control panel to on, then each indicator will be turned on.
When the unit is warming up, exposures can not be taken. After approx. 10 sec.,
WARM UP indicator will go off. The unit is now ready to use.
CAUTION
DO NOT SWITCH ON AND OFF QUICKLY IN A SHORT TIME. WHEN
TURNING ON AGAIN AFTER TRUNING OFF, WAIT FOR AT LEAST 1
MINUTE. OTHERWISE, HIGH FREQUENCY INVERTER CANNNOT WORK
PROPERLY.
kV SETTING: Set kV in the range of 40kV to LOOKV.
TIMER SETTING: Set timer in the range of (HF100 : 0.01 sec. to 2.00 sec.)(HF100H : 0.08 to 4.00
sec.) depends on subject, distance and screen/film combination.
Time increments are 0.01 sec.
ADJUSTMENT OF RADIATION FIELD :
Pressing the collimator switch will illuminate the field for approx. (HF100:
90sec.) HF100H : 30 sec). Adjust light field to position of radiograph by two
knobs for adjustment of opening. During this time, use the adjustment knobs
to size the radiograph as you need.
RADIOGRAPHY :
Make sure that WARM UP indicator is OFF before pressing exposure switch.
CAUTION
WARM UP INDICATOR BECOMES OFF AFTER 10 SEC. FROM POWER ON.
WARM UP INDICATOR BECOMES OFF AFTER 10 SEC. FROM EACH
EXPOSURE.
IF WARM UP INDICATOR IS ON, RADIOGRAPHY IS IMPOSSIBLE.
Make sure all WARNING LAMPS are off.
After all safety checks, press only first stage of EXPOSURE SWITCH.
STANDBY indicator goes off after 1 sec. Then, unit is ready for exposure.
Press second stage of EXPOSURE SWITCH. X-RAY indicator is lit and
radiography is executed for the time set.
The EXPOSURE SWITCH is a DEDMAN style. So, if the button is released,
exposure is stopped. So, hold the button until exposure is complete.
WARM UP indicator will light after exposure.
X-RAY BUZZER is ON and OFF (only HF 100).
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