Faxitron Model MX-20 Technical Manual May 2009

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

REVISION RECORD

Rev.

From Serial No.

To (and inc.) Serial No.

Section and Revision

Date

1

2

3

4

5

6

7

8

9

1

2321A0100

1

1

1

1

1

1

1

1

1

August 1, 1997

2

2321A0100

2

2

2

2

2

2

2

2

2

March 1, 1998

3

2321A0100

3

3

3

3

3

3

3

3

3

January 1, 1999

4

2321A0448

4

4

4

4

4

4

4

4

4

December 1, 2001

5

2321A0448

5

5

5

5

5

5

5

5

5

March 1, 2005

6

2321A0861

6

6

6

6

6

6

6

6

6

June 1, 2006

7

2321A0861

7

7

7

7

7

7

7

7

7

December 1, 2006

8

2321A0861

8

8

8

8

8

8

8

8

8

May 1, 2008

9

2321A1108

9

9

9

9

9

9

9

9

9

May 1, 2009

2321A0447

2321A0861

2321A1107

10

Rev. 9

0.1

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

MAINTENANCE WARNING TO BE SERVICED BY QUALIFIED PERSONNEL ONLY Serious injury (both physical and genetic) can result if all X-ray shielding is not properly replaced or interlocks are not operating after maintenance. Proper shielding replacement and interlock operation can only be confirmed by performing a radiation survey before placing the system in operation, and before use whenever the system is moved or serviced.

INSTALLATION WARNING Faxitron X-Ray LLC employees can perform a radiation leakage survey during installation of your FAXITRON system. These persons are competent but may not be considered qualified experts. Check with your state radiation control authority to determine what the particular survey requirements are in your state. It might be required, that a qualified expert must survey the installation before placed in routine operation.

SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation, service, and repair of this system. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture and intended use of the system. Faxitron X-Ray LLC assumes no liability for the customer's failure to comply with these requirements.

To ensure personnel safety, it is necessary that a radiation meter be used to check for radiation leakage during installation, after extensive maintenance, periodically (not to exceed six months), and after moving the system. The radiation meter must have adequate accuracy at maximum kVp and beam quality of the X-ray unit surveyed.. Geiger-Mueller and certain other scintillation-type radiation meters can be useful for making qualitative measurements of radiation from FAXITRON Systems, such as determining the location of “hot spots”. However, these types of meters should only be used for quantitative measurements when they have been calibrated to the energies in question. It is recommended that the user consult their Radiation Protection Professional for guidance on these measurements. Faxitron X-Ray LLC Service Centers can perform this survey upon initial installation as well as provide operational checks and user instructions. This should be an essential part of every sale in order to validate the system's warranty and ensure maximum radiation protection. The manufacturer considers the National Bureau of Standards Classification of FAXITRON Systems a Protective Installation.

Y2K PRODUCT COMPLIANCE The MX-20 Specimen Radiography System has no date related processing ("NDRP") and is therefore Year 2000 Compliant.

Rev. 9

0.2

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

GOVERNMENT REGULATIONS The MX-20 Specimen Radiography System conforms to standards set by the US Food and Drug Administration, Center for Devices and Radiological Health, (21 CFR-1020.40) and as such it does not require an installation report. However, as an X-ray source it may require to be registered in your state. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated July 26, 2001. Also complies with IEC 60825-1. This product is classified by Underwriters Laboratories Inc. in the U.S. and Canada with respect to electrical fire, shock, and mechanical hazards and has been tested to comply with the European Low Voltage and EMC directives. Certain states in the U.S. have radiation control regulations that require registration of radiation sources with cognizant state and/or local jurisdiction public health agencies. Registration normally must be made immediately or within 30 days of acquiring each such source. Please telephone or write your state or local public health agency for registration information pertinent to this installation. OPERATOR SAFETY FAXITRON Systems should be operated only by personnel who have been instructed in radiation safety and in operating instructions set forth in this manual. Faxitron X-Ray offers a Interactive Radiation Safety Training course on a CD. This CD describes what ionizing radiation is and its different types, the biological effect of ionizing radiation and associated risks, the basic principles of radiation protection and the different types of radiation monitors and their use. Please contact Faxitron X-Ray for more information. In addition, Faxitron XRay LLC recommends the use of a radiation film badge service for cumulative individual personnel monitoring. To obtain a film badge service and a radiation meter, contact the State Board of Health, a large hospital or an X-ray laboratory. MOVING THE SYSTEM It is permissible to move a FAXITRON System after initial installation. However, due to possible mishandling, it is essential that a radiation survey be performed after any move to prevent hazards to personnel.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the system in the presence of flammable gases, fumes, or suspended dust particles. Fire or explosions could result because of ignition from electrical arcing.

GROUND THE SYSTEM To minimize shock hazard, the system chassis and cabinet must be connected to an electrical ground. The instrument is equipped with a three-conductor AC power cable. The power cable must be plugged into an approved three-contact electrical outlet.

CHECK FOR PROPER WALL PLUG POLARITY To retain optimum safety of the system in the event of improbable but possible electrical failures, it is important that the system be connected to a properly wired outlet. A properly wired outlet should give the following readings when checked with an AC voltmeter: Neutral to Ground = 0 volts Line to Ground = 120 volts Figure 0-1. Power Receptacle

Rev. 9

0.3

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

DO NOT SUBSTITUTE PARTS OR MODIFY SYSTEM Because of the danger of introducing hazards, do not install substitute parts or perform any unauthorized modification to the system. Request assistance from a Faxitron X-Ray LLC Sales and Service Office for service and repair to ensure that safety features are maintained. NOTE: The laser energy source provided with this product is compatible only with the lasers used and specified in Section 9 of this manual. Any adjustments made to this product, other than those specified in this manual, may result in non-compliance with 21 CFR 1040.10 and 1040.11.

KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made by qualified maintenance personnel. Do not replace components with power cable connected.

DO NOT SERVICE OR ADJUST ALONE Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

AVOID ENVIRONMENTAL EXTREMES The MX-20 is designed to be operated and stored in controlled environments only. This system should not be exposed to extremes in temperature or humidity.

DANGEROUS PROCEDURE WARNINGS Warnings, such as the example below, precede potentially dangerous procedures throughout this manual. Instructions contained in the warnings must be followed. WARNING During some maintenance procedures, dangerous radiation and high voltages, capable of causing death, are present in the system. Use extreme caution when handling, testing and adjusting.

CAUTION CARE SHOULD BE TAKEN WHEN OPERATING THIS MACHINE WHEN HIGH ELECTROSTATIC POTENTIALS ARE PRESENT. ELECTROSTATIC DISCHARGES MAY CAUSE LOSS OF FUNCTION AND/OR FILM ARTIFACTS TO OCCUR.

Rev. 9

0.4

FAXITRON® LIMITED WARRANTY STATEMENT

®

Faxitron X-Ray LLC (FX) warrants this Faxitron X-ray Product against defect in material and workmanship for a period of one year from the date of first sale. If FX receives notice of such a defect during the warranty period, FX shall, at its option either repair or replace materials which prove to be defective. If FX is unable, within a reasonable time, to repair or replace any product to a condition as warranted, Buyer shall be entitled to a refund of the purchase price upon return of the Product to FX at Buyer's expense.

LIMITATION OF WARRANTY The limited warranty shall not apply to defects in the Product resulting from: 1.

Improper or inadequate maintenance by Buyer;

2.

Buyer-supplied software for interfacing;

3.

Unauthorized modification or misuse;

4.

Operation outside of the environmental specifications for the Product; or

5.

Improper site preparation and maintenance.

THE LIMITED WARRANTY SET FORTH ABOVE IS EXCLUSIVE AND NO OTHER WARRANTY, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED, IS INTENDED. FX SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL FX BE LIABLE UNDER THIS LIMITED WARRANTY FOR ANY CONSEQUENTIAL DAMAGES INCURRED BY ANY PERSON BY REASON OF USE OR DEFECT IN THE PRODUCT NOR SHALL FX BE LIABLE HEREUNDER FOR MORE THAN THE PURCHASE PRICE PAID FOR THE PRODUCT.

®

Faxitron is a registered trademark of the FAXITRON X-RAY LLC

May 2009

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

SECTION 1 GENERAL INFORMATION

CONTENTS

Rev. 9

PAGE

1.1

Introduction... 1.1

1.2

System Description... 1.1

1.3

Specifications... 1.2

1.4

Digital Camera Options... 1.4

1.5

Decals and Labels... 1.8

1.0

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522 SECTION 1 GENERAL INFORMATION

1.1

INTRODUCTION. The MX-20 is a Cabinet X-ray Unit specially designed for high detail radiographic imaging of medical specimens. The exceptionally high magnification capability from the 0.02 mm focal spot with optimized cabinet geometry and the superior contrast available from the low kV capability provides enhanced image performance. Due to its compact size, the MX-20 can be placed away from patient areas, such as directly outside the operating room or in a non-patient area of the radiology department to provide rapid verification that the correct tissue is excised during biopsy. When used in the pathology laboratory, the MX-20 may serve a number of applications essential to the efficient processing of tissue and bone specimens for accurate diagnosis. The standard MX-20 is equipped with simple and convenient manual controls for selection of exposure time and X-ray tube kilovoltage. Included is also a Laser Locator using two crossed narrow beams to indicate the center of the X-ray beam. This makes position of samples precise and convenient. An optional automatic exposure control, AEC, is also available. With this option, the standard manual or the automatic exposure control can be selected. The automatic exposure control helps the operator to select the optimum kVp and determine correct exposure time. An ionization chamber (exposure sensor) under the film shelf, monitors the X-rays penetrating the object and reaching the film, and terminates the X-ray when the proper exposure has been achieved. With the automatic exposure control, good pictures are more consistently obtained by inexperienced operators. Other options include the different Digital Cameras as shown in 1.2 System Description. The Digital Camera options provide digital imaging capability to the standard MX-20 system. The different cameras available with field of view of 2 x 2, 2 x 4, 4 x 4 or 4.7 x 4.7 inches. The cameras has up to 10 lp/mm resolution and provides instant on-screen viewing of specimen x-ray images. As with all x-ray generating devices, proper care is required to ensure that the MX-20 is operated and maintained within the guidelines established by the manufacturer and government regulatory agencies. This manual contains the guidelines to be used to obtain optimum performance as specified by the manufacturer, as well as procedures to be followed should service become necessary.

1.2

SYSTEM DESCRIPTION

MX-20

FAXITRON Specimen Radiography System; 10 - 35 kV constant potential output voltage; 0.3 mA continuous current; X-ray tube with 0.02 mm focus; shielded cabinet; safety interlocks; 100 - 120 or 180 - 240 VAC, 50/60 Hz operation.

OPTIONS

Rev. 9

A02X

Automatic Exposure Control. Regulates exposures based on absorbed dose rather than time. Film densities can be repeatable achieved through the use of the ACE sensor which is placed under the film cassette or envelope. Note: A02X can not be installed together with a Digital Camera.

DC2 DC4 DC22 DC24 DC44 DC5 DC10 DC12

Digital Camera. Digital Camera. Digital Camera. Digital Camera. Digital Camera. Digital Camera. Digital Camera. Digital Camera.

Dalsa, CCD type. 50 x 50 mm (2" x 2") field of view. Dalsa, CCD type. 50 x 100 mm (2" x 4") field of view. Bioptics, CMOS type. 50 x 50 mm (2" x 2") field of view. Bioptics, CMOS type. 50 x 100 mm (2" x 4") field of view. Bioptics, CMOS type. 100 x 100 mm (4" x 4") field of view. Hamamatsu, CMOS type. 50 x 50 mm (2" x 2") field of view. Hamamatsu, CMOS type. 100 x 100 mm (4" x 4") field of view. Hamamatsu, CMOS type. 120 x 120 mm (4.7" x 4.7") field of view.

1.1

Faxitron X-Ray LLC Date May 1, 2009 1.3

Model MX-20 Manual No. 5081-9522

SPECIFICATIONS.

RADIATION SAFETY • • • •

Radiation shielded cabinet. Compartment door equipped with dual safety interlocks. Radiation: Less than 0.1 mR/hr at 5 cm (2 in.) from exterior surface at maximum kV. Certified to comply with standards set by the US Food and Drug Administration, Center for Devices and Radiological Health, (21 CFR-1020.40). Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated July 26, 2001. Classified by Underwriters Laboratory in the US and Canada.

• •

X-RAY TUBE

Focal spot size kVp mA Beryllium window thickness Target material X-ray beam divergence

0.02 mm 10-35 0.3 0.25 mm Tungsten 40 deg.

BEAM COVERAGE (BC) AND SOURCE TO OBJECT DISTANCE (SOD) AT DIFFERENT SHELF POSITIONS/MAGNIFICATIONS FACTORS Shelf Position/ Mag. Factor 5 4 3 2 1.5 1 (bottom) Note:

Rev. 9

a. b.

BC diameter cm (inches) 8.3 (3.3") 10.4 (4.1") 13.9 (5.5") 20.8 (8.2") 27.7 (10.9") 41.6 (16.4") see note b

SOD cm(inches) 11.4 (4.5") 14.3 (5.6") 19.1 (7.5") 28.6 (11.3") 38.1 (15.0") 57.2 (22.5")

Radiation intensity exhibits normal “heel” effect, typical charts available upon request. Beam coverage limited to the inside size of the cabinet, 35.5 x 40.6 cm (14" x 16").

RADIOGRAPHIC MAGNIFICATION:

Up to 5 times

ENERGY RANGE:

10 - 35 kV, Constant Potential

X-RAY TUBE CURRENT:

0.3 mA

EXPOSURE CONTROL:

a. Standard: Manual timer 0.1 to 999 seconds b. Option A02X: Automatic and manual.

LASER INFORMATION:

Peak Power 2 mW, Wavelength 670 nm.

POWER REQUIREMENTS:

100 - 120 or 180 - 240 VAC, ±10%, 50/60 Hz, 150 VA

1.2

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

SPECIFICATIONS (cont'd) ENVIRONMENTAL CONDITIONS:

This equipment is designed for the following conditions: • Indoor use • Altitude up to 2000 meters • Temperatures 5°C to 40°C • Maximum relative humidity 80% • Pollution Degree 2 • Over-voltage Category II

FUSES All fuses are 250 Volt, Slow Blow, 5 x 20 mm. Location Power Receptacle Power Receptacle Power Supply, FS1 Power Supply, FS2 Power Supply, FS3 Gun Board, F1 Gun Board, F2 Gun Board, F3 Camera Board (Optional), F1 Camera Board (Optional), F2

Circuit AC Power Input AC Power Input +5 VDC Supply +12 VDC Supply -12 VDC Supply -12 VDC Supply +12 VDC Supply +24 VDC Supply +5 or +21 VDC * +5 0r -21 VDC *

Fuse Value 5 Amp 5 Amp 8 Amp 5 Amp 2 Amp 0.5 Amp 2 Amp 2 Amp 1 or 0.5 Amp * 1 or 0.5 Amp *

Type Number T5A/250V T5A/250V T8A/250V T5A/250V T2A/250V T500mA/250V T2A/250V T2A/250V T1A or T500mA/250V * T1A or T500mA/250V *

* Depends on the type of Camera and Camera Pwr Board used.

EXTERIOR DIMENSIONS (Approximate)

Height Width Depth

Without Digital Option mm inches 737 29 432 17 470 18.5

With Digital Option mm Inches 864 34 432 17 470 18.5

COMPARTMENT INTERIOR DIMENSIONS (Approximate)

Height Width Depth

mm 480 356 406

inches 18.9 14 16

WEIGHT (Approximate)

Net Shipping

Rev. 9

Without Digital Option kg lbs 62 135 77 170

With Digital Option kg lbs 70 155 88 195

1.3

Faxitron X-Ray LLC Date May 1, 2009 1.4

DIGITAL CAMERA OPTIONS

1.4.1

Note:

Rev. 9

Model MX-20 Manual No. 5081-9522

Computer System Requirements

Processor

Pentium 4 or better with spare ISA slot

Speed

3 GHz or faster

Operating System

Windows XP

Hard Drive

80 GB, SATA, 7200 RPM min.

System RAM

2.0 GB min.

Video RAM

256 MB, 64 bit Video Display w/ DVI

CD ROM

48X32 or faster CDRW/DVD Combo

Network Connectivity

Ethernet capable 10/100/1000

USB

2.0 compatible

Removable Mass Storage

Read/Write CD ROM

Monitor

17 - 21", 1280 x 1024 Resolution 0.25 mm max. dot pitch

Printer

Medical Grade Imager, DICOM capability recommended, Codonics NP-1660M or equivalent

Software upgrades, telephone and modem support are currently offered free of charge. Please contact Faxitron X-ray LLC for additional information.

1.4

Faxitron X-Ray LLC Date May 1, 2009 1.4.2

Model MX-20 Manual No. 5081-9522

Dalsa and Bioptics Cameras. Interface Software Handshake Protocol The MX-20 uses the following control signals to communicate with the Dalsa/Bioptics interface PCB: XREQ: Active low output signal from the MX-20 to the computer which indicates that the operator wishes to make an exposure. CCD:

Active low input signal to the MX-20 which indicates that the camera has cleared the CCD and is ready for X-ray.

PREP: Active low output signal from the MX-20 to the computer which indicates when X-ray has begun. Returns to high state at the end of the exposure. AEC:

Input signal to the MX-20 from the computer which indicates that a camera is present and is also used to terminate the exposure in progress by going to a high state. Prior to exposure the signal should be in a low state.

The startup and exposure sequence are as follows:

Rev. 9

1.

Upon power up the MX-20 looks for the AEC input signal to be in a low state indicating that the camera is present and the imaging software has been started. If not present the MX-20 will display “nc” in the kV display indicating “No Computer”. The Ready light on the MX-20 front panel will also be off. Once the imaging software has started the kV display should indicate the operating kV and the ready light will come on provided the 90 second warm-up time has completed and the door is closed.

2.

With the imaging software is ready to make an exposure the operator presses the start button on the front of the MX-20. The MX-20 sets the XREQ output signal low and enters a 400 msec loop looking for a active low CCD ready signal. If at the end of the 400 msec loop no CCD signal is detected the exposure process is terminated with no x-ray being produced. If a CCD signal is present the MX-20 starts the process of turning on the kV and enabling tube current. At that moment the PREP output signal is brought low for the duration of the exposure.

3.

Once an exposure has begun the MX-20 looks for the AEC input signal to go high indicating that the camera has finished integrating. The MX-20 turns off x-rays and sets the XREQ and Prep signal to their high states. The computer should place the AEC signal to an active low state for the next exposure. A ten second backup timer is used in the MX-20 that will terminate the exposure if the proper AEC signal is not received. This will also happen if the operator presses the stop button or opens the door during the exposure.

1.5

Faxitron X-Ray LLC Date May 1, 2009 1.4.3

Model MX-20 Manual No. 5081-9522

Hamamatsu DC5, DC10 and DC12 Cameras. The MX-20 uses the following control signals to communicate with the application software used with the Hamamatsu DC5, DC10 and DC12 digital cameras: The communication between the software and the X-Ray control unit consists of a Serial Port (RS232) connection. The software can set values and query values from the X-Ray Unit using the following protocol: A. The X_REQUEST protocol

Rev. 9

•

The Software shall provide a mode of operation that allows it to monitor the X_REQUEST protocol of the X-Ray hardware handshake interface by listening to the serial interface for events to determine when the X-Ray unit has requested an exposure.

•

The Unit shall send an ‘X’ character to the software, which will cause an event to prepare the camera for acquisition.

•

Once the Software has prepared the camera for acquisition, it will send a ‘C’ character to the Unit telling it to begin X-Ray generation.

•

The Unit will send a ‘P’ character back to the Software to indicate that the X-Ray generation has begun. At this point the software will begin exposure on the camera and present the user with a ‘Busy’ dialog telling them that the Unit is generating X-Rays.

•

After the exposure time, the Software will send an ‘A’ character to the Unit telling it to stop generating X-Rays.

•

The Unit will then send an ‘S’ character to the Software to reset the process.

1.6

Faxitron X-Ray LLC Date May 1, 2009 1.4.3

Model MX-20 Manual No. 5081-9522

Hamamatsu DC5, DC10 and DC12 Cameras, cont’d B. Setting and Querying of Data

The Setting and Querying of Data to/from the Unit is defined as follows: a.

Data Request messages are of the form: ?<Command Character><Carriage Return> (Example: ?Dr)

b.

Data Set messages are of the form: !<Command Character><ARGS><Carriage Return> (Example !MFr)

The allowable Command Characters are: Command Character: V - kV voltage display. !Vnnr – Set the kV to a value ?Vr – Response is à ?Vnnr Command Character: M - Operating Mode !M<F = Film Mode, R = Remote Mode>r ?Mr – Response is à ?M<F, M>r Command Character: D - Device Type ?Dr – Response is à ?Dxx-xxr Where xx-xx can be one of: DX-50 LX-60 MX-20 Note: It is no way to set this value. Command Character: R - EPROM Version ?Rn – Response is à ?Rnn.nr Note: It is no way to set this value. Command Character: S - Device Status ?Sr – Response is à ?Sxr Where x can be one of: W – Device is in warm up mode. D – Device door interlock is open. R – Device is ready. Note: It is no way to set this value. Command Character: T - Exposure Time. !Tnnnnr will set the exposure time to a specified time setting (formatted as below). ?Tr – Response is à ?Tnnnnr Where nnnn is the time setting in tenths of a second. Examples: 100 Seconds will appear as 1000 78.5 seconds will appear as 0785 !Br will ask the unit to start an exposure (same function as pressing the start button on the device).

Rev. 9

1.7

Faxitron X-Ray LLC Date May 1, 2009 1.5

Model MX-20 Manual No. 5081-9522

DECALS AND LABELS

COMPLIES WITH DHHS RADIATION PERFORMANCE STANDARDS, 21 CFR, SUBCHAPTER J MODEL NO.

MX-20

SERIAL NO.

2321A0862

OPTION NO.

DC12

MANUFACTURED: APRIL 2006 100-120, 180-240 VAC

C

O

50/60 HZ

R

P

O

R

A

150 VA MAX

T

I

O

N

225 Larkin Drive, Unit 1, Wheeling, Illinois 60090 Made in USA 7123-0201

Figure 1-1. Location of Decals and Labels

Rev. 9

1.8

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

SECTION 2 INSTALLATION

CONTENTS

Rev. 9

PAGE

2.1

Introduction... 2.1

2.2

Initial Inspection... 2.1

2.3

Preparation... 2.1

2.4

Un-crating the MX-20... 2.1

2.5

Installation...2.2

2.6

Power Requirements... 2.2

2.7

Operational Checkouts and Radiation Survey... 2.2

2.8

Claims... 2.5

2.0

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

SECTION 2 INSTALLATION 2.1

INTRODUCTION. This section contains information and instructions necessary for installing Faxitron Model MX-20 Specimen Radiography System. Included are initial inspection procedures, power and grounding requirements, environmental information, installation procedures and instructions for repackaging for shipment.

2.2

INITIAL INSPECTION. Each Faxitron system is carefully inspected both mechanically and electrically before shipment. It should be free from scratches and in perfect operating order upon receipt. To confirm this, the system should be inspected for physical damage incurred in transit. If damage is found, refer to the claims paragraph in this section. Retain the packing material for possible future use.

2.3

PREPARATION. The MX-20 should be handled with care to prevent injury to personnel and/or damage to the equipment. The MX-20 system has a shipping weight of about 77 kg (170 lbs). WARNING Read the Safety Summary at the front of this manual before installing or operating the system.

NOTE. In the Continental United States, Hawaii, Alaska, Canada and certain European Countries, you can get assistance with installation from an FXC field engineer by contacting the nearest Faxitron X-Ray LLC Sales/Service Office. The field engineer will also perform or arrange for a radiation safety survey, and he will assist in training customer personnel in proper operation and use of the system.

2.4

UN-CRATING THE MX-20. 1. 2.

Cut strap band(s) and remove top cover and shroud. See Figure 2-1.Remove any accessories or documentation. Remove the MX-20 from pallet. See Figure 2-2.The weight of the MX-20 is 62 kg (135 lbs) and it can therefore be lifted from the pallet by two persons. Save the packing material. Check for any damage and follow instructions in the "Claims" paragraph later in this section.

Top Cover

Band Shroud

Pallet

Figure 2.1 MX-20 Crated

Rev. 9

Figure 2.2 MX-20 on Pallet

2.1

Faxitron X-Ray LLC Date May 1, 2009

2.5

Model MX-20 Manual No. 5081-9522

INSTALLATION Place the MX-20 on a sturdy, leveled table or bench in the area where the unit is to be operated. In areas where earth quake regulations are in effect, follow federal and local regulations to secure the system.

2.6

POWER REQUIREMENTS 1.

For protection of operating personnel, Faxitron X-Ray LLC requires that instrument panel and cabinet be grounded. The instrument is equipped with a threeconductor AC power cable that, when connected to an appropriate receptacle, grounds the instrument through the offset pin. Further, check to make certain the wall outlet is properly wired. See Figure 2-3.

2.

The MX-20 requires a power source of 100-120 or 180240 VAC, ±10%, 50/60 Hz, that can deliver 150 VA.

Figure 2-3. Power Receptacle

2.7

OPERATIONAL CHECKOUTS AND RADIATION SURVEY. Perform operational checkouts and radiation survey as follows:

WARNING A radiation meter, with adequate accuracy at maximum kVp and beam quality of the X-ray unit surveyed, is required for personnel safety during performance of this procedure.

1.

Make certain that the system has been installed securely on a sturdy, leveled table or bench.

Top Cover

2.

Check that the power cord is disconnected.

Screws

3.

See Figure 2-4 and remove the top cover. After removing two screws from each side, use a screw driver and wedge out the lower edge before lifting it up and away from the unit.

Figure 2-4 Removing Top Cover

Rev. 9

2.2

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

Operational Checkouts and Radiation Survey (cont'd) 4.

When the top cover has been removed, inspect all components visible in the power and control sections. See Figure 2-5. Pay special attention to connectors etc. which could come loose during shipment of the unit.

5.

Locate the key for the On/Off Key Switch and place it in the Key Switch (see Figure 3-1 in the Operating Section). Make certain that the Key Switch is in its off position. WARNING During some maintenance procedures, dangerous radiation and high voltages, capable of causing death, are present in the system. Use extreme caution when handling, testing and adjusting.

6.

Locate the power cord and attach it to the receptacle located on the back panel. Make certain that the switch built into the power cord receptacle is in the off position. Connect the power cord to a properly grounded AC power source of 100-120 or 180-240 VAC, ±10%, 50/60 Hz and turn on the switch built into the power cord receptacle.

7.

Make certain that the cover for the high voltage unit, as shown in Figure 2-5, is secured in its place. Also, in the following steps, be careful not to come in contact with any live circuits exposed in the power and control sections.

8.

Read through the operating section of the manual and then follow the step-by-step operating instructions for the manual mode.

9.

Set 20 kV and 300 seconds, then make an exposure.

Power Supply -

kV

+

1 VDC=10 kV

-

mA

+

High Voltage Unit

1 VDC=1 mA

Figure 2-5. Power and Control Sections

Rev. 9

2.3

Faxitron X-Ray LLC Date May 1, 2009

Model MX-20 Manual No. 5081-9522

Operational Checkouts and Radiation Survey (cont'd) 10.

Check kV and mA calibration by connecting a digital voltmeter to the calibration points shown in Figure 2-5 and making 30 seconds exposures at 10, 20 and 35 kV. Record the values in Table 2-1 for future reference. If the values recorded are not within the reference values, contact your Faxitron X-Ray LLC Sales/Service Office for assistance.

kV

kV Calibration Voltage

mA Calibration Voltage

Measured VDC

Measured VDC

Reference VDC

Reference VDC

10

0.95-1.05

0.285-0.315

20

1.90-2.10

0.285-0.315

35

3.33-3.67

0.285-0.315

Notes

Table 2-1 11.

Perform a radiation survey as described in section 8 of this manual.

12.

Start an exposure at 20 kV and 300 seconds. Open the Exposure Chamber Door slowly and check that the exposure is terminated and the Door Indicator 3, X-RAY ON Indicator 4, Ready Indicator 5, and X-RAY ON Indicator 11 goes off. See Figure 3-1 in the operating section of the manual.

13.

Close the Exposure Chamber Door and make certain that both X-RAY On Indicators 4 and 11 remain off.

14.

For units delivered with the optional Automatic Exposure Control (AEC), check the response time in the following way: a. See the step-by-step operating instructions for the AEC and set the controls as follows: 20 kV, AEC Mode, Density to 100% and Film to F5. b. Without any object or shelf in the exposure chamber, make an exposure and confirm that the exposure terminates instantly.

15.

If the unit is delivered with the Digital Camera Option, connect it to the computer system, install the software and check the operation according to the operation section of this manual.

16.

Finally, if the unit has the optional Laser Locator, check that it is properly aligned and that the center of the cross is centered with the center beam marker in the bottom of the cabinet. If the Digital Camera Option is installed, the center of the cross should be centered with the camera opening.

17.

This completes the installation check. Turn off the unit, disconnect the power cord and install the top cover.

18.

Fill out the Installation Report supplied with this manual and return the top copy to: Faxitron X-Ray LLC Customer Service manager 575 Bond Street Lincolnshire, IL 60069, U.S.A. Retain the bottom copy and place it in the manual for permanent record.

Rev. 9

2.4