Summit Industries 325E User manual

325E X-RAY GENERATOR
USER AND ASSEMBLER INFORMATION
For X-ray Control Model No.: F280
and X-ray High-voltage Generator Model No. A700
01496-000 Revision G
AUGUST 2005
SUMMIT INDUSTRIES, INC.
2901 W. Lawrence Avenue
Chicago, IL 60625
773-588-2444
www.Summitindustries.net

325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
TEXT REVISION HISTORY FOR F285 MANUAL
REVISION ECR DESCRIPTION RELEASE DATE
E 4196 UPDATED COVER SHEET AND
SCHEMATICS AUGUST 2004
F 4484 ADDED ERROR CODES AND TUBE
PROTECT DIP SW. SETTINGS DUE
TO 02249-000 TIMER BOARD.
ADDED TEXT REVISION HISTORY
PAGE, AND UPDATED TOC
FEBRUARY 2005
G 4727 UPDATED TOC TO INCLUDE 02581
SERVICE GUIDE AUGUST 2005

325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
TABLE OF CONTENTS
I. INTRODUCTION..................................................................................................2
II. USER INFORMATION .........................................................................................3
A. CONTROL FEATURES................................................................................3
B. RECOMMENDED OPERATING PROCEDURES ........................................6
C. MAINTENANCE ...........................................................................................7
D. TECHNICAL INFORMATION.......................................................................9
III. ASSEMBLER INFORMATION............................................................................11
A. CERTIFICATION OF COMPATIBILITY......................................................11
B. RADIATION PROTECTION .......................................................................11
C. ELECTRICAL POWER SUPPLY REQUIREMENTS..................................11
D. UNPACKING AND OPENING CONTROL..................................................12
E. PRELIMINARY ASSEMBLY AND TUBE PROTECT SELECTIONS..........14
F. PRELIMINARY ELECTRICAL CHECKS AND ADJUSTMENTS ................18
G. CALIBRATION............................................................................................20
H. FINAL COMPLIANCE TESTS....................................................................26
I. ANCHORING CONTROL CABINET TO THE FLOOR...............................28
J. SCHEMATICS
1. B127 --SCHEMATIC, 325 CONTROL CIRCUIT DIAGRAM..................29
2. 02249-002 -- COMPONENT LAYOUT FOR TIMER DRIVER PCBA .....30
3. B130-- SCHEMATIC, MOTOR START CRCT ......................................31
4. B131--PARTS LAYOUT FOR MOTOR START CRCT (A455) ............. 32
5. B132-- SCHEMATIC FOR KV COMP. PCB ASSY. (01204) .................33
6. B133--HIGH TENSION TRANSFORMER DIAGRAM (A700)............... 34
7. 02249-003--SCHEMATIC AND COMPONENT LAYOUTS …………….35
K. SERVICE GUIDE, SINGLE-PHASE GENERATORS (02581)...................36
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
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I. INTRODUCTION
The equipment, which is described in this manual, will perform reliably when installed,
operated, and maintained in accordance with the instructions of this manual.
This equipment is sold with the understanding that the user assumes sole responsibility
for radiation safety and that the manufacturer does not accept any responsibility for the
following:
1. Equipment improperly installed.
2. Equipment improperly used.
3. Equipment improperly maintained or repaired.
4. Equipment, which has been modified or altered in any way.
5. Injury or damage to patient or other personnel for any of the above
causes.
We are proud of our products and are confident they will provide many years of useful
and enjoyable service.
Summit Industries Inc.

325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
II. USER INFORMATION
This x-ray generator is both easy to use and very versatile. It consists of an x-ray
control and a high voltage generator (H.V. generator).
A. CONTROL FEATURES
Refer to photo on page 6 for location of the following controls and indicators:
Note: Refer to Section B, “Recommended Operating Procedure” for detailed
description of proper use of these controls and indicators.
A) Power “on” – “off” switch – Controls power to the system.
B) Power “on” light – Indicator light lights when power is “on”.
C) Bucky selector switch – Allows selection of either wall bucky, table bucky, or
no bucky.
D) Line check rocker switch – When depressed, this switch causes the kVp
meter (O) to indicate if the line voltage compensator (E) is adjusted properly.
E) Line voltage compensator – Allows operator to adjust input circuit of x-ray
control to match the line voltage easily and effectively.
F) Tube current (mA) selector switch – Rotary switch allows operator to select
the optimum tube current and focal spot for the desired technique.
G) Digital display – This display provides three very useful features:
1. Pre-exposure indication of mAs (the product of mA and exposure time).
2. Post-exposure indication of the number of x-ray pulses counted during
the previous exposure.
3. Error codes to indicate generator status or inappropriate selection.
Error Code Indicated Fault Corrective Action Required
E01 Tube Limits Exceeded Reduce kVp, mA or Time
E02 kVp too high (>128 kVp) Select 125 kVp or less
E03 kVp too low (<37 kVp) Select 40 kVp or more
E04 Invalid mA setting Reselect mA station
E06 Invalid Time Selection
or Leaking SCR Reselect Time station, call for service if error won’t clear.
We recommend that the above chart be kept available for easy reference.
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
H) X-ray exposure switch – Two level switch: Partial depression (PREP) causes
anode rotation and filament current boost. Full depression (EXPOSE)
initiates the production of x-rays.
I) Exposure time selector switch – Provides the operator capability to select any
one of 23 different exposure times.
J) Exposure interlock “ready” light – Indicator light lights when all exposure
interlocks are closed. (Collimator interlock, tube thermal protection, misc.
exposure interlock devices, etc.) When this light is “off”, exposures will not be
allowed.
K) Tube ratings exceeded light – Indicator light lights when internal electronic
circuitry detects that selected technique factors exceed the single exposure
ratings of the x-ray tube. Under these conditions, x-ray exposures are not
allowed.
L) Milliampere meter – Indicates actual tube current during an x-ray exposure.
Meter deflection is the visual indication of x-ray production.
M) kVp minor selector – Provides fine adjustment of peak tube potential (kVp).
N) kVp major selector – Provides coarse adjustment of peak tube potential
(kVp).
O) KILOVOLT meter – Pre-reading meter, which indicates selected peak tube
potential (kVp). This meter also serves as an indicator of line voltage
adjustment in conjunction with item (D) above.
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
M
L
N
K
J
O
A
I
F
G
B
H
C
D
E
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
B. RECOMMENDED OPERATING PROCEDURES
Note: It is important to turn the generator “on” at least 15 minutes before making
an exposure. This will provide sufficient “warm-up” time for the circuitry to
stabilize.
1. Turn the system “on” by slowly snapping the power switch (A) to the right.
Power “on” light (B) should light.
2. Check the line voltage by depressing “line check rocker switch” (D) while
observing the kVp meter (O). Rotate the knob of the “line voltage
compensator” (E) as necessary until the needle of the kVp meter falls within
darkened area of the scale marked “V”, (as near the center of the area as
possible.)
Note: If you are unable to position the needle within this area, it is an
indication that the line voltage is not correct and the equipment should
not be used. Either wait for line voltage to change or call for service.
3. Determine the desired technique factors Note: Do not exceed the x-ray
tube ratings. Refer to x-ray tube rating charts provided with the x-ray
tube. If the technique factors are set beyond the x-ray tube limits “E01”
should appear in the digital display window, preventing exposure.
Note: Proper warm-up of the anode must be done on a cold unit prior to
making exposures. The specific details may be found in “General
Information for Installing and Operating X-Ray Tubes”, that is included
with each tube shipped. The warm-up procedure tags are attached to
each unit. Basically this procedure will reduce the chance of tube
damage due to thermal shock.
4. Select the desired tube current. Selecting the 50 or 100 mA stations
automatically determine that the small Focal Spot will be used. The 150, 200,
and 300 mA stations are internally connected to the large F.S.
Note: Select the desired tube current (mA) prior to selecting the desired
peak tube potential (kVp).
If at any time, a different tube current is selected, it will be necessary to
reset the kVp selector switches.
5. Rotate the exposure time selector switch (I) to the desired time setting.
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
6. Observe the digital display (G) to confirm that the correct mAs has been
selected.
7. Select the desired peak tube potential (kVp) by observing the kVp meter (O)
while rotating the kVp selectors (M&N)
8. This generator is equipped with tube protect circuitry that compares the
selected technique factors to the “single exposure ratings” of the x-ray tube.
Exposures will only be allowed if the selected values are less than or equal to
the x-ray tube limits. Refer to the chart below for description of “E01” error.
9. If the x-ray system includes a bucky (wall or table or both) and it is desired to
use a bucky technique, select the appropriate bucky by depressing the bucky
selector switch. If a non-bucky technique is desired select the center “off”
position of the bucky selector switch.
10. This generator is also equipped with an indicator light identified as “exposure
interlocks ready” light, which monitors the status of all auxiliary exposure
interlock circuitry. When all interlocks are ready the light will light. If the light
is not “on”, x-ray exposures will not be allowed. Such interlocks might be SID
interlock switches, tube thermal protectors, collimator interlock, etc.
11. Depress the exposure switch approximately halfway. This action will cause
the rotating anode of the x-ray tube to accelerate to full speed and the
selected filament of the x-ray tube to heat up to its proper emission
temperature. Depress the exposure switch fully and hold. A beep tone will
indicate the termination of the exposure, and the mA meter deflection will
provide a visual indication of x-ray production.
Note: It is permissible to depress the exposure switch fully in one
motion. There will be however, a one second delay before x-ray
production begins.
After the exposure terminates, but while the exposure switch is still
depressed, the digital display will flash “on” and “off” indicating the number of
x-ray pulses produced. This is primarily a service feature provided for the x-
ray serviceman to verify proper operation.
12. Error codes and corrective action for digital display window.
Error Code Indicated Fault Corrective Action Required
E01 Tube Limits Exceeded Reduce kVp, mA or Time
E02 kVp too high (>128 kVp) Select 125 kVp or less
E03 kVp too low (<37 kVp) Select 40 kVp or more
E04 Invalid mA setting Reselect mA station
E06 Invalid Time Selection
or Leaking SCR Reselect Time station, call for service if error won’t clear.
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325E X-Ray Generator
Summit Industries, Inc. Model Numbers F280 / A700
C. MAINTENANCE
Periodic inspection and preventative maintenance of this equipment is necessary to
assure continued safe performance and compliance with applicable state and federal
regulations. The following maintenance program must be closely followed.
Q: Who should perform the service?
A: Service personnel specifically trained, experienced, and familiar with this type of
medical x-ray equipment.
Q: When and How often?
A: Appropriate inspection and service should be performed 30 days after installation
and every 6 months thereafter.
Q: Specifically, what must be inspected, tested and/or serviced?
A: Several things:
1. Verify that the knob on exposure time selector is mounted solidly and
indicates the proper value.
2. Verify that all push-button and rocker switches operate freely with no sticking
or hanging up.
3. Verify proper operation of all pilot lights.
4. Verify proper operation of audible and visual indicators of x-ray termination
and production respectively.
5. Verify the accuracy of exposure timer, tube current, and peak tube potential,
and adjust as necessary.
6. Perform reproducibility and linearity tests and verify compliance.
7. Inspect electro-mechanical contactor for pitting and/or burned contacts.
Replace if necessary.
8. Examine terminal connections of high voltage generator. All terminals should
be tight.
9. Examine oil level of H.V. generator and refill as necessary. There should be
approximately ½ to ¾” air space between the oil and the inside edge of the
generator cover.
10. Examine the plugs of the high voltage cables. They should be clean with no
signs of carbon tracking.
Note: This x-ray generator should not be altered or modified in any way
as such action may invalidate its regulatory compliance and void the
factory warranty.
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