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High Frequency Generators - Veterinary Systems APR-VET

Operation

OM-0118R0

31

SECTION 4

OPERATING SEQUENCES

4.1

START-UP ROUTINE

System power is applied by pressing the “

Power On

” push-button on the Control

Console. The Generator will go through a start-up routine conducting an
automatic self-test that will show on the RAD kVp Display information usable
only by service personnel.

After the power-up has been completed the Console should display normal
radiographic factors. If a malfunction if found, error messages will be displayed
on the RAD kVp Display specifying the fault.

Some indicators on the Console are used to provide service
information during the start-up process. These indicators should
be ignored by the operator until the unit has completed its
power-up sequence.

4.2

X-RAY TUBE WARM-UP PROCEDURE

Before effecting X-ray exposures ensure that the Tube is
properly warmed-up. Make sure that no persons will be
inadvertently exposed to unnecessary X-rays during this
procedure.

Routine exposures should not be effected unless the Tube is previously
warmed-up, this prolongs X-ray Tube life.

It is recommended that the following procedure will be performed for X-ray Tube
warm-up, at the start of each day and when the Tube selected has not been in
use for approximately one hour.

This warm-up procedure is used for a typical X-ray Tube.
Consult the X-ray Tube manufacturer instructions for the
actual Tube in use, comparing its recommendations with this
procedure. If there is conflict with this procedure, comply
with the Tube manufacturer’s instructions.

Note

.

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Содержание VET-X APR-VET

Страница 1: ...Operation Veterinary Systems High Frequency Generators APR VET Console Technical Publication OM 0118R0 ...

Страница 2: ......

Страница 3: ...ity of any persons carelessly unwisely or unknowingly exposing themselves or others to X radiation It is important that everyone working with X radiation be properly trained and take adequate steps to insure protection against injury The manufacturer assumes that all operator and service personnel authorized to use install calibrate and maintain this equipment is cognizant of the danger of excessi...

Страница 4: ...le of the equipment or system comes to an end becomes dangerous and need to be considered as harmful waste according to the international domestic and local regulations The manufacturer recommends to contact an authorized representative of the manufacturer or an authorized waste management company once the life cycle of the equipment or system comes to an end to remove this equipment or system DEC...

Страница 5: ... Their application and meaning are described below DANGERS ADVISE OF CONDITIONS OR SITUATIONS THAT IF NOT HEEDED OR AVOIDED WILL CAUSE SERIOUS PERSONAL INJURY OR DEATH ADVISE OF CONDITIONS OR SITUATIONS THAT IF NOT HEEDED OR AVOIDED COULD CAUSE SERIOUS PERSONAL INJURY OR CATASTROPHIC DAMAGE OF EQUIPMENT OR DATA Advise of conditions or situations that if not heeded or avoided could cause personal i...

Страница 6: ...anying documents Ionizing radiation Type B equipment Dangerous voltage Ground This symbol indicates that the waste of electrical and electronic equipment must not be disposed as unsorted municipal waste and must be collected separately Please contact an authorized representative of the manufacturer or an authorized waste management company for information concerning the decommissioning of your equ...

Страница 7: ...g of Personnel 10 2 6 Protection against Electric Shock Hazards 10 2 7 Protection against Hazards from Unwanted or Excessive Radiation 10 3 OPERATING CONTROLS 11 3 1 Radiography and General Controls 13 3 1 1 Power ON OFF 13 3 1 2 Bucky No Bucky Selection 13 3 1 3 Focal Spot Indicators 14 3 1 4 Status Indicators 14 3 1 5 Self Diagnostic Indicators 15 3 1 6 Radiographic Parameters 16 3 2 Automatic E...

Страница 8: ...ed Radiographic Table with Floating Table Top 29 3 9 Bucky Cassette Tray 29 3 10 Collimator Controls 29 4 OPERATING SEQUENCES 31 4 1 Start up Routine 31 4 2 X ray Tube Warm up Procedure 31 4 3 Radiographic Operation 32 4 4 AEC Operation 33 4 5 APR Operation 34 5 PERIODIC MAINTENANCE 35 5 1 Operator Tasks 35 5 2 Service Tasks 36 6 TECHNICAL SPECIFICATIONS 37 6 1 Factors 37 6 2 Range of Radiographic...

Страница 9: ... all the necessary information to understand and operate the Veterinay Systems with High Frecuency Generator and Radiographic Console APR VET It provides a general description safety and regulatory information operation instructions and specifications concerning the equipment Illustration 1 1 Veterinay Systems APR VET ...

Страница 10: ...iques in one two or three points or use any anatomical programming APR The Console is designed to provide an easy operation and it is the interface with the Generator and the rest of the System Optionally the Console can be installed alone or assembled on a pedestal Tube Collimator Assembly and Radiographic Table The System configuration is based on both components G Tube Collimator Assembly Avail...

Страница 11: ...elf diagnostic warnings that identify malfunctions in the equipment Tube protection circuitry that prolongs tube life and increases system performance Equipped with closed loop control of X ray tube current kVp and filaments which minimize potential errors and the need for readjustments Automatic line voltage compensation due to closed loop operation of X ray tube current and kVp Heat Unit storage...

Страница 12: ...The major items in the equipment have some identification labels attached to them which provide the following manufacturer and product information Product Model Volts V Line Phases Frequency Hz and Power kVA kW Date of manufacture Serial number Part number Manufacturer Place of manufacture Certification ...

Страница 13: ...r covered by this Operation Manual is classified as Protection against Electric Shock Class I Type B applied parts Protection against Harmful Ingress of Water Ordinary Degree of Safety in the presence of Flammable Anesthetics Mixture with air or with oxygen or with nitrous oxide Not suitable for use in the presence of Flammable Anesthetics Mixture with air or with oxygen or with nitrous oxide Mode...

Страница 14: ...High Frequency Generators Veterinary Systems APR VET Operation OM 0118R0 6 This page intentionally left blank ...

Страница 15: ...RVED IT IS VITALLY IMPORTANT THAT EVERYONE ASSOCIATED WITH X RAY RADIATION IS FAMILIAR WITH THE SAFETY AND REGULATORY INSTRUCTIONS CONTAINED WITHIN THIS MANUAL IN PARTICULAR THE STATEMENT AT THE BEGINNING OF THIS MANUAL ENTITLED IMPORTANT X RAY PROTECTION THESE INSTRUCTIONS SHOULD BE THOROUGHLY READ AND UNDERSTOOD BEFORE ATTEMPTING TO PLACE THIS EQUIPMENT IN OPERATION Although X radiation can be h...

Страница 16: ...HIS EQUIPMENT WHICH IS A RESULT OF POOR OPERATING TECHNIQUES OR PROCEDURES NO RESPONSIBILITY WILL BE ASSUMED FOR ANY EQUIPMENT THAT HAS NOT BEEN SERVICED AND MAINTAINED IN ACCORDANCE WITH THE MANUFACTURER INSTRUCTIONS OR WHICH HAS BEEN MODIFIED OR TAMPERED WITH IN ANY WAY IT IS THE RESPONSIBILITY OF THE OPERATOR TO ENSURE THE SAFETY OF THE PATIENT WHILE THE X RAY EQUIPMENT IS IN OPERATION BY VISUA...

Страница 17: ...The intensity of the secondary radiation is dependent upon the energy and intensity of the primary beam and the atomic number for the object material struck by the primary beam Secondary radiation may be of greater intensity than that of the radiation reaching the film Take protective measures to safeguard against it An effective protective measure is the use of lead shielding To minimize dangerou...

Страница 18: ... film to determine the amount of radiation A common method of determining whether personnel have been exposed to excessive radiation is the use of personal radiation dosimeters These consist of X ray sensitive film or thermoluminescent material enclosed within a holder that may be worn on the body Even though this device only measures the radiation which reaches the area of the body on which they ...

Страница 19: ...AEC Reset 10 Patient Size Selection APR 11 APR Display Selectors 12 Self Diagnostic Indicator 13 Status Indicators 1 On 2 Off 3 Bucky No Bucky Selection 4 Focal Spot Indicators 5 Radiographic Parameters 6 AEC Density Parameters 7 AEC Area Selection 1 2 3 5 11 12 7 8 4 10 12 6 11 13 9 SEDECAL WARNING THIS X RAY UNIT MAY BE DANGEROUS TO PATIENT AND OPERATOR UNLESS SAFE EXPOSURE FACTORS AND OPERATING...

Страница 20: ...R CEILING OR OTHER ELEMENTS IN THE ROOM IT MAY CAUSE SERIOUS DAMAGE TO THE EQUIPMENT MONITOR WITH SPECIAL CARE THE PATIENT POSITION TO AVOID INJURY TO PATIENT CAUSED BY TABLE TOP MOVEMENTS PATIENT EXTREMITIES BE KEPT AWAYFROM MOBILE COMPONENTS OF THE UNIT OPERATOR SHOULD NEVER MOVE TABLE TOP FROM LATERAL SIDE PATIENT HEAD OR FEET IT MAY CAUSE FINGERPINCH UNDER THE TABLE TOP INTRAVENOUS TUBING CATH...

Страница 21: ...the last workstation used will be automatically selected OFF The System is turned OFF by pressing this push button IN THE EVENT OF AN EMERGENCY ISOLATE THE X RAY SYSTEM FROM THE MAINS POWER BY FORCIBLY DEPRESSING THE X RAY ROOM EMERGENCY OFF SWITCH USUALLY A RED MUSHROOM SHAPED SWITCH THIS SWITCH SHOULD BE LOCATED ON OR NEAR TO THE X RAY ROOM ELECTRICAL CABINET USUALLY PLACED NEAR TO THE GENERATOR...

Страница 22: ...t The Focal Spot may also be selected keeping kV and mAs constant pressing ON mA or mAs increase push buttons to select Large Focal Spot ON mA or mAs decrease push buttons to select Small Focal Spot Constant mAs set the maximum mA available and the minimum exposure time The Focal Spot change can be done whenever the present conditions of the X ray Tube allow it 3 1 4 STATUS INDICATORS READY Indica...

Страница 23: ...ibit the exposure anode overheated Parameters for next exposure may be temporally limited by the Generator change the exposure values or wait for the X ray Tube to cool Check that heat units available are lower than the calculated for the next exposure heat units close to zero Reduce exposure factors or wait for the X ray Tube to cool To display the Heat Units refer to Section 3 5 ROTOR ERROR ROTO...

Страница 24: ...actual mAs value until the AEC Reset push button is pressed to reset the error condition mA DISPLAY Shows the radiographic mA value selected for the technique Time DISPLAY can show The Time value in seconds selected for the radiographic technique When an exposure is made with AEC it shows the back up time during the exposure and the actual Time at the end of the exposure whenever the Prep push but...

Страница 25: ...power limit kV x mA is reached by increasing the mA up to a maximum possible value the mA value is blocked Flashing values on kV and mA Displays will alert operator about the situation If required kV could be increased up to its maximum value while mA value may automatically decrease as long as mAs value is kept the same Space Charge If a variation of the kV or mA induces to reach space charge lim...

Страница 26: ...s of back up time or mAs should be avoided to prevent patient from excessive exposure when a control error is produced FIELD SELECTION Each push button indicates its related physical location of the selected field in the AEC Exposure Detector and it may be selected or deselected by pressing it Any combination of fields can be selected and the push buttons illuminate when active FILM SCREEN COMBINA...

Страница 27: ... the radiographic parameters AEC Density AEC Fields and Film Screen Combination selections can be assigned to the APR techniques APR techniques can be modified and stored again in a non volatile memory by the operator The APR techniques are intended as a guide line only Accurate exposure factors depend among other things on the Bucky Grid factors Table Top absorption Film Screen Combinations and F...

Страница 28: ...o increase or decrease the final thickness selection of the area to be exposed mAs COMPENSATION With this APR mode the mAs value of the technique can be modified by using the AEC push buttons for Film Screen Combination and AEC Density even though AEC option is not activated The Film Screen Combination push buttons are used to adjust the mAs in relation to Film Screen speed The Medium Film Screen ...

Страница 29: ...cted Body Region the selected Thickness range and the final thickness selection of the area to be exposed Also the Console displays the Bucky No Bucky AEC or mAs Compensation Film Screen and AEC Density push buttons and Technique parameters 4 All the values and selections can be modified with the respective push buttons G Press the push buttons 7 and 8 or B and D to increase or decrease the final ...

Страница 30: ...llustration 3 2 The newly selected technique is now stored in memory and can be recalled for future examinations The changes performed and stored on an APR technique affect to the other thickness selection for that Body Region and Thickness Range in the following manner G If the thickness value cm of the stored APR technique is the minimum or maximum value of its Thickness Range all RAD parameters...

Страница 31: ...pre programmed APR technique 1 5 10 60 70 80 kVp cm 84 First modification of the kVp line Final kVp line of the APR technique 64 G If the thickness value cm of the stored APR technique is not the minimum or maximum value of its Thickness Range information about the selected kVp is not stored G Independently of the thickness value cm the new mAs value or mA and Exposure Time is stored in all cases ...

Страница 32: ... Footswitch half way Prep position to prepare the X ray Tube for exposure The Ready indicator on the Console will light when the X ray Tube is prepared and there are no interlock failure or system faults After pressing it the following functions are activated Anode rotation Filament current switches from stand by to the selected mA EXP After the Ready indicator is illuminated fully press the Hands...

Страница 33: ...n read the number of exposures made by the Generator as indicated below RAD EXPOSURES Press and hold and press once The number of exposures is shown on the kVp and mAs Displays up to a maximum of 999 999 exposures 123 456 exposures kV mAs 3 7 ERROR CODES Error codes indicate the potential cause of a system failure Error codes are shown on the kVp Display at the same time an audio signal is emitted...

Страница 34: ...If the error code persists turn the Generator OFF and wait 30 minutes before turning it ON again If the equipment remains inoperative turn it OFF and call Field Service E10 E11 System failure Press the AEC Reset push button If the error code persists turn the Generator OFF and ON If the equipment remains inoperative turn it OFF and call Field Service E12 No mA during exposure or mA value is out of...

Страница 35: ... equipment remains inoperative turn it OFF and call Field Service E37 Tube Overload error The technique selected is beyond the X ray tube ratings or present conditions of the X ray tube inhibit the exposure anode overheated Parameters for next exposure may be temporally limited by the Generator change the exposure values or wait for the X ray tube to cool Check that heat units available are lower ...

Страница 36: ...the focal distance SID with reference to the Radiographic Table ROTATION Hold down the push button at the right side above the handle to release the brake of the Arm and allow rotation the Tube Collimator Assembly 90 3 8 2 BRAKES OF THE TUBE COLLIMATOR SUPPORT FOR VARIABLE SID COLUMN Two push buttons located below the Control Console are used to release the brakes of the Tube Collimator Support As...

Страница 37: ...ette Tray under patient 3 9 BUCKY CASSETTE TRAY Pull out Cassette Tray to load Cassette Film According to cassette size and orientation place manual clamps at corresponding number notch open the automatic clamp and insert Cassette Film This Cassette Tray accepts all standard Cassette Film sizes 3 10 COLLIMATOR CONTROLS Collimator controls consist of push button to switch on the Collimator Lamp and...

Страница 38: ...High Frequency Generators Veterinary Systems APR VET Operation OM 0118R0 30 This page intentionally left blank ...

Страница 39: ...indicators should be ignored by the operator until the unit has completed its power up sequence 4 2 X RAY TUBE WARM UP PROCEDURE Before effecting X ray exposures ensure that the Tube is properly warmed up Make sure that no persons will be inadvertently exposed to unnecessary X rays during this procedure Routine exposures should not be effected unless the Tube is previously warmed up this prolongs ...

Страница 40: ...w 1 Make sure that the X ray Tube to be used is properly warmed up 2 Position the patient for the examination 3 Select Bucky or No Bucky and technique parameters using the RAD controls on the Console 4 Maintain the patient in the required position Prepare the X ray Tube by pressing the Footswitch or the Handswitch until Prep and maintain it until the Ready indicator is illuminated 5 Make the X ray...

Страница 41: ...tient for the examination 3 Select Bucky or No Bucky and technique parameters using the RAD controls on the Console 4 Enter AEC mode by selecting at least one Area Detector Field on the Console 5 Select a Film Screen Combination by pressing the corresponding push button 6 Set the Film Density if required by using one of the five AEC Density controls 0 is the normal setting 7 Select the technique p...

Страница 42: ... examination 3 Activate the APR mode 4 Select a general Body Region and the Thickness Range of the indicated on the APR Display 5 Select the Thickness cm of the area to be exposed 6 Technique parameters Bucky or No Bucky selection Focal Spot AEC etc corresponding to the APR selection are displayed and indicated on the Control Console If needed the parameters and selections can be directly modified...

Страница 43: ...nt at least for five 5 years after the unit manufacturing 5 1 OPERATOR TASKS The tasks of this periodic maintenance shall include the following items DO NOT REMOVE ANY COVER DISASSEMBLE OR MANIPULATE INTERNAL COMPONENTS IN THE UNIT THESE ACTIONS COULD CAUSE SERIOUS PERSONAL INJURIES AND OR EQUIPMENT DAMAGE NEVER ATTEMPT TO CLEAN ANY PART OF THE UNIT WHEN ITISSWITCHEDON ALWAYSSWITCHOFFTHEEQUIPMENT ...

Страница 44: ...erinary Systems APR VET Operation OM 0118R0 36 5 2 SERVICE TASKS Only service personnel specifically trained on this medical X ray equipment should work on service tasks or maintenance of the equipment Refer to Maintenance document ...

Страница 45: ...o 125 kV in 1 kV steps mA From 10 mA to 400 mA through the following mA stations 10 12 5 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 Depending on the Generator model mAs Product of mA x Time values from 0 1 mAs to 500 mAs Exposure Time From 1 millisecond to 10 seconds through the following Time stations Milliseconds 1 2 3 4 5 6 8 10 12 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 50...

Страница 46: ...y with X ray Tube Collimator and Control Console 2000 mm 987 mm 2295 mm 224 kg Tube Support Assembly for Variable SID with X ray Tube Collimator and Control Console 500 mm max 828 mm 2235 mm 174 kg Tube Support Assembly for Fixed SID with X ray Tube Collimator Control Console and Bucky Cassette Tray Support 500 mm max 980 mm 2000 mm 77 kg Fixed Radiographic Table Floating Table Top 1500 mm 719 mm ...

Страница 47: ...icado por Manufactured by SEDECAL Sociedad Española de Electromedicina y Calidad S A Pelaya 9 Pol Ind Río de Janeiro Algete 28110 Madrid España Spain Phone 34 916 280 544 Fax 34 902 190 385 www sedecal com ...

Страница 48: ......

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