XRS-4 X-RAY SOURCE OPERATOR’S MANUAL
CONTENTS ITEM PAGE 1.0 2.0 INTRODUCTION................................................................................. 2 WARNINGS......................................................................................... 2 DUTY CYCLE……………………………………………………………. 2 3.0 PHYSICAL DESCRIPTION................................................................. 3 HIGH VOLTAGE PULSER/TUBEHEAD....................................…….. 3 BASE..................................................................................
1.0 INTRODUCTION The XRS-4 produces high levels of radiation and must be operated by qualified personnel who have read the Warning and Operations section of the manual before operating the device. The XRS-4 is a small, lightweight x-ray generator that operates on its own removable battery pack. The XRS-4 is a pulsed x-ray device that produces x-ray pulses of very short duration (50 nanoseconds). It produces a relatively low dose rate comparable to a 0.25 ma constant potential machine.
3.0 PHYSICAL DESCRIPTION BEAM ANGLE LABEL HANDLE HEAD KEY CONTROL MODULE BATTERY COLLIMATOR BASE RADIATION WARNING LABEL Figure 1: XRS-4 X-ray Unit HIGH VOLTAGE PULSER/TUBEHEAD. The main body of the XRS-4 is the tube head which contains the tube cavity, cold cathode type X-ray tube, spark gap, high voltage capacitor, and transformer. The standard collimator located on the front of the head limits the X-ray beam to 40 degrees. Special order collimators up to 85 degrees are available. BASE.
3.5 CONTROL MODULE X-RAY PULSING LIGHT KEY LCD EMERGENCY STOP \ PULSE DEFAULT DELAY SWITCH UNITS SWITCH RANGE SWITCH POWER ON LIGHT BACK PLATE CABLE CONNECTOR Figure 3: Control Module POWER ON LIGHT: Illuminates when battery voltage is applied to control module. RED X-RAY PULSING LIGHT: Blinks after time delay button or remote cable button is pressed to warn that the XRS-4 is going to pulse. The light stays on continuously while the XRS-4 is pulsing. This is a failsafe warning light.
XRS-4 REAR VIEW/CABLE CONNECTOR PIN # 1 2 3 4 5 DESCRIPTION +5 VOLTS 100 ma MAXIMUM REMOTE SWITCH REMOTE SWITCH – NO DELAY X-RAY ON SIGNAL COMMON 0 VOLTS 1 2 3 5 4 REMOTE CONNECTOR: LEMO EPG.0B.305.HLN MATING CABLE PLUG: LEMO FGG.0B.305.CLAD 56Z PIN 2 PIN 5 Remote switch inputs are activated when grounded.
4.0 DESCRIPTION OF OPERATION The block diagram below illustrates how the XRS-4 functions. The following sequence of events takes place each time the XRS-4 is fired: 1. 2. 3. 4. 5. 6. 7. User initiates operation of the machine. The control section sends a signal to the converter section to begin oscillating. Once oscillating, the converter section changes the 18 volts DC to 22Khz AC. The transformer charges the High Voltage Capacitor to about 9000 volts.
5.0 OPERATING INSTRUCTIONS OPERATING PRECAUTIONS: The operator should always stand at least 20 feet behind the X-ray unit and clear all personnel at least 20 feet behind the unit or at least 100 ft. from the front of the unit before pulsing. The exclusion zone (below) should be a controlled area free of all personnel while X-ray pulses. 20’ 100’ 20’ X-ray Beam 20’ Figure 4: Exclusion Zone PULSE SELECTION 1. Attach a charged battery and turn on the X-ray generator. 2. Press the RANGE BUTTON.
DELAY MODE OPTION 1. Press Green DELAY BUTTON on top of the control module. 2. LCD displays 60 and X-ray begins 60 second time delay. 3. Hold DELAY BUTTON down for 1.5 seconds and time delay goes from 60 to 15 seconds. 4. X-ray makes audible beep and red pulsing light blinks as generator counts down to pulse. 5. Audible warning and red warning light stay on while X-ray generator pulses. REMOTE CABLE OPTION 1. Attach remote cable to back of control module. 2. Retreat distance of the cable behind the unit. 3.
6.0 SOFTWARE The software program that controls the microcontroller can be identified by turning the key switch on while both push button switches (RANGE & UNITS) below the LCD are depressed. The LCD displays the software version “65”. After “65” is displayed the total number of pulses on the XRS-4 will be displayed in the LCD. Each digit represents 10,000 pulses. Example: If the LCD reads “04” the total number of pulses on the XRS-4 is between 40,000 and 50,000 pulses.
8.0 TROUBLESHOOTING SYMPTOM No “power on” light TEST -Check battery voltage -Check battery connection Power on lights, but X-ray does not pulse. Power on lights, X-ray pulsing light does not illuminate, X-ray dose not pulse X-ray pulses, but no image or black image. Unit stops pulsing in the middle of a pulse train and LCD displays 00. -Check the battery voltage. -Check the 2amp fuse. ACTION - Replace or charge battery - Make sure battery is securely attached and battery clips are not bent or broken.
BOARD INSTALLATION 1. Slide counter board back into the top of the Control Module housing just below the screw receptacles. 2. Push the counter board up so LED goes through the appropriate hole in the control module housing. 3. Connect the three white and one black connector. 4. Screw the LED cover back on. 5. Put the three cap screws through the oscillator board and then put the ½” offsets on the back of the screws. 6. Plug the oscillator board back into the counter board and push it in position. 7.
2 AMP FUSE STEP 1 15 AMP 15 AMP FUSE FUS E POWER TRANSISTORS STEP 2 STEP 2 SIGNAL WIRE X-RAY ON / FEEDBACK SWITCH STEP 3 Figure 7:Oscillator Board KEY SWITCH CONNECTOR RIBBON CABLE Counter Board 12
10.0 WARRANTY Golden Engineering, Inc. warrants XRS-4 X-ray unit made and sold by it or its authorized representatives to be free of defects in materials and workmanship for a period of twelve (12) months from the date of shipment to the end user. Warranty does not cover maintenance required due to life. To make a claim under this limited warranty, customer must ship the entire unit (or the component believed to be defective) to Golden Engineering, post-paid. Golden Engineering, Inc.
11.0 SPECIFICATIONS PHYSICAL DIMENSIONS INCLUDING BATTERY PACK LENGTH WIDTH HEIGHT WEIGHT 17.5 inches (44.5 cm) 5 inches (13.5 cm) 8.5 inches (21.6 cm) 21 pounds (9.5 Kg) with battery X-RAY OUTPUT X-ray dose per pulse Pulses per battery charge Pulses per second Expected tube life (glass tube) X-ray source size Maximum Photon Energy X-ray pulse width 4 mR to 7 mR (12 inches in front of unit) 3000 10 (Nominal) 50,000 pulses 1/8 in.
