GE CT Sytec Technical Manual

Technical Publications
2234976
Revision 2
CT Sytec/Sytec i Series Functional Check /Adjustment
Copyrighte 1999 by General Electric Company
Operating Documentation
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
WARNING
AVERTISSEMENT
2234976
D THIS SERVICE MANUAL IS AVAILABLE IN ENGLISH ONLY. D IF A CUSTOMER’S SERVICE PROVIDER REQUIRES A LANGUAGE OTHER
THAN ENGLISH, IT IS THE CUSTOMER’S RESPONSIBILITY TO PROVIDE TRANSLATION SERVICES.
D DO NOT ATTEMPT TO SERVICE THE EQUIPMENT UNLESS THIS SERVICE
MANUAL HAS BEEN CONSULTED AND IS UNDERSTOOD.
D FAILURE
PROVIDER, OR OTHER HAZARDS.
D CE MANUEL DE MAINTENANCE N’EST DISPONIBLE QU’EN ANGLAIS. D SI LE TECHNICIEN DU CLIENT A BESOIN DE CE MANUEL DANS UNE AUTRE
LANGUE QUE L’ANGLAIS, C’EST AU CLIENT QU’IL INCOMBE DE LE FAIRE TRADUIRE.
D NE PAS TENTER D’INTERVENTION SUR LES ÉQUIPEMENTS TANT QUE LE
MANUEL SERVICE N’A PAS ÉTÉ CONSULTÉ ET COMPRIS.
D LE NON-RESPECT DE CET AVERTISSEMENT PEUT ENTRAÎNER CHEZ LE
TECHNICIEN, L’OPÉRATEUR OU LE PATIENT DES BLESSURES DUES À DES DANGERS ÉLECTRIQUES, MÉCANIQUES OU AUTRES.
T
O HEED THIS W
OPERATOR OR PATIENT FROM ELECTRIC SHOCK, MECHANICAL
ARNING
MA
Y RESUL
T IN INJUR
Y T
O THE SER
VICE
WARNUNG
AVISO
D DIESES KUNDENDIENST–HANDBUCH EXISTIERT NUR IN
ENGLISCHER SPRACHE.
D FALLS EIN FREMDER KUNDENDIENST EINE ANDERE SPRACHE BENÖTIGT,
IST ES AUFGABE DES KUNDEN FÜR EINE ENTSPRECHENDE ÜBERSETZUNG ZU SORGEN.
D VERSUCHEN SIE NICHT, DAS GERÄT ZU REPARIEREN, BEVOR DIESES
KUNDENDIENST–HANDBUCH WURDE.
D WIRD
D ESTE MANUAL DE SERVICIO SÓLO EXISTE EN INGLÉS. D SI
D NO SE DEBERÁ DAR SERVICIO TÉCNICO AL EQUIPO, SIN HABER
D LA NO OBSERVANCIA DEL PRESENTE AVISO PUEDE DAR LUGAR A QUE EL
DIESE W DES KUNDENDIENSTTECHNIKERS, DES BEDIENERS ODER DES PATIENTEN DURCH ELEKTRISCHE SCHLÄGE, MECHANISCHE ODER SONSTIGE GEFAHREN KOMMEN.
ALGÚN PROVEEDOR DE SER QUE NO SEA EL INGLÉS, ES RESPONSABILIDAD DEL CLIENTE OFRECER UN SERVICIO DE TRADUCCIÓN.
CONSULTADO Y COMPRENDIDO ESTE MANUAL DE SERVICIO.
PROVEEDOR DE SERVICIOS, EL OPERADOR O EL PACIENTE SUFRAN LESIONES NATURALEZA.
ARNUNG NICHT BEACHTET
PROV
OCADAS POR CAUSAS ELÉCTRICAS, MECÁNICAS
NICHT
ZU RA
TE GEZOGEN UND VERST
, SO KANN
VICIOS AJENO A GEMS SOLICIT
ES ZU VERLETZUNGEN
ANDEN
A UN
IDIOMA
O DE OTRA
a
GE MEDICAL
REV
0
ATENÇÃO
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
2234976
D ESTE MANUAL DE ASSISTÊNCIA TÉCNICA SÓ SE ENCONTRA
DISPONÍVEL EM INGLÊS.
D SE QUALQUER OUTRO SERVIÇO DE ASSISTÊNCIA TÉCNICA, QUE NÃO A
GEMS, SOLICITAR ESTES MANUAIS NOUTRO IDIOMA, É DA RESPONSABILIDADE
D NÃO TENTE REPARAR O EQUIPAMENTO SEM TER CONSULTADO E
COMPREENDIDO ESTE MANUAL DE ASSISTÊNCIA TÉCNICA.
DO CLIENTE
FORNECER OS SER
VIÇOS DE TRADUÇÃO.
AVVERTENZA
D O NÃO CUMPRIMENTO DESTE
DO TÉCNICO, OPERADOR OU PACIENTE DEVIDO A‘ CHOQUES ELÉTRICOS, MECÂNICOS OU OUTROS.
D IL PRESENTE MANUALE DI MANUTENZIONE È DISPONIBILE
SOLTANTO IN INGLESE.
D SE
UN ADDETT MANUALE IN UNA LINGUA DIVERSA, IL DIRETTAMENTE ALLA TRADUZIONE.
D SI PROCEDA ALLA MANUTENZIONE DELL’APPARECCHIATURA SOLO DOPO
AVER CONSULTATO IL PRESENTE MANUALE ED AVERNE COMPRESO IL CONTENUTO.
D NON TENERE CONTO DELLA PRESENTE AVVERTENZA POTREBBE FAR
COMPIERE OPERAZIONI DA CUI DERIVINO LESIONI ALL’ADDETTO ALLA MANUTENZIONE, ALL’UTILIZZATORE ED AL PAZIENTE PER FOLGORAZIONE ELETTRICA, PER URTI MECCANICI OD ALTRI RISCHI.
O ALLA MANUTENZIONE ESTERNO ALLA GEMS RICHIEDE
A
VISO PODE POR EM PERIGO A SEGURANÇA
CLIENTE È TENUT
O A PROVVEDERE
IL
b
CT SYTEC/SYTEC I SERIES
GE MEDICAL
REV
0
SYSTEMS
FUNCTIONAL
CHECK /
ADJUSTMENT
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IMPORTANT! . . . X-RAY PROTECTION
X-ray equipment if not properly used may cause injury. Accordingly, the instructions herein contained should be thoroughly read and understood by everyone who will use the equipment before you attempt to place this equipment in operation. The General Electric Company, Medical Systems Group, will be glad to assist
and cooperate in placing this equipment in use.
Although this apparatus incorporates a high degree of protection against practical design of equipment can provide complete protection. Nor can take adequate precautions to prevent the possibility of any persons carelessly exposing themselves or others to radiation.
It
is important that everyone having anything to do with x-radiation be properly trained and fully acquainted with the recommendations available from NCRP Publications, 7910 Woodmont Avenue, Room 1016, Bethesda, Maryland 20814, and of the International
The
equipment is sold with the understanding that
and representatives have no responsibility for injury or damage which may result from improper use of the equipment. Various
protective material and devices are available. It is urged that such materials or devices be used.
of
the National Council on Radiation Protection and Measurements as published in NCRP Reports
Commission on Radiation Protection, and take adequate steps to protect against injury
the General Electric Company
x-radiation other than the useful beam, no
any practical design compel the operator to
, Medical Systems Group, its agents,
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GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
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DAMAGE IN TRANSPORTATION
All packages should be closely examined at time of delivery. If damage is apparent, have notation “damage in shipment
Electric representative or a hospital receiving agent. Whether noted or concealed, damage carrier immediately for inspection by the carrier within
Call Traf this time be ready to supply name of carrier, delivery date, consignee name, freight or express bill number, item damaged
Complete instructions regarding claim procedure are found in Section “S” of the Policy & Procedure Bulletins.
written on
this 14 day period.
fic and T
and extent of damage.
all
upon discovery
ransportation, Milwaukee, WI (414) 827–3449
copies of the freight or express bill
, or in any event, within 14 days after receipt, and the contents and containers held
. A transportation company will
not
before
delivery is accepted or
pay a claim for damage if an inspection is not requested
/ 8*285–3449
immediately
“signed for” by a General
MUST
be reported to the
after damage is found. At
OMISSIONS & ERRORS
GE
personnel, please use the GEMS CQA Process to report all omissions, errors, and defects in this documentation.
Customers,
please contact your GE Sales or Service represenatives.
CAUTION
Do not use the following devices near this equipment. Use of these devices near this equipment could cause this equipment to malfunction.
Devices not to be used near this equipment:
Devices radio–controlled toy
Keep power to these devices turned of Medical staf

which intrinsically transmit radio
, etc.
f in charge of this equipment is required to instruct technicians, patients an
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waves such as; cellular phone, radio transceiver
f when near this equipment.
, mobile radio transmitter
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d
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 2
2234976
REVISION HISTORY
REV DATE PRIMARY
0 Jan. 6, 1999 Initial release.. 1 May. 28, 1999 Added V/R 4.02 software Loading. 2 Dec. 20, 1999 DAS Count.
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REASON FOR CHANGE
LIST OF EFFECTIVE PAGES
PAGE REV PAGE REV PAGE REV PAGE REV PAGE REV
Title page 2. Title page rear blank. a to d 0. A2
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Tab 1 (Introduction)
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Tab APPENDIX
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INTRODUCTION (T
General
SYSTEM (T
OPERATOR CONSOLE (T
GANTR
AB 2)
Checks during System Installation Software Loading X–ray Alignment System Calibration Image Performance V
OC Components OC Operation
Y (T
AB4)
DC Power Supplies Gantry Mechanism Rotational Operation T
ilt Operation Collimator T
able and Gantry
AB 1)
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CONTENTS
erification
AB 3)
TABLE (TAB5)
Elevation Function Longitudinal Function T
able Accessories
DAS / DETECT
DAS Components Detector Related Devices DAS Operation
X–RA
Y GENERA
XG Components Generator Output Check
SWITCH / JUMPER SETTING (T
Operator Console Gantry DAS X–Ray Generator
OR (TAB6)
TOR (TAB7)
AB8)
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INTRODUCTION

TABLE OF CONTENTS
SECTION PAGE
SECTION
1 – GENERAL
1-1 GENERAL WARNING/CAUTION/NOTICE 1–2.
1-1-1 Gantry 1–2 1-1-2 Operator Console 1–3.
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1–1.
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INTRODUCTIONii
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SECTION 1 – GENERAL
Use
of This Manual
Use this ‘Functional Check/Adjustment’ for the following purposes:
D
A during– and post–installation check to ensure that the entire system operates properly
D
As a reference source for Periodic Maintenance which mainly contains abbreviated lists.
D
A post–FMI (Field Modification Instruction) check to verify system.
D
A pre–diagnostic check to verify or determine failure symptoms before of during troubleshooting.
D A
post–diagnostic check to verify system operation after repairs, before returning it to the customer to use.
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INTRODUCTION1–1
GE MEDICAL
REV
0
1-1
GENERAL W
1-1-1 Gantry
ROTATION HAZARD ! TURN INSERTING
SYSTEMS
ARNING/CAUTION/NOTICE
WARNING!
OFF THE ‘SCAN’ BREAKER LOCA
ANY OBJECT INT
O OR WORKING ON THE GANTRY.
WARNING!
FUNCTIONAL
TED A
T THE REAR OF THE GANTR
CT SYTEC/SYTEC I SERIES
CHECK /
Y BASE BEFORE
ADJUSTMENT
2234976
ROTATION HAZARD ! ALWAYS INSERT THE GANTRY AZIMUTH LOCK PIN BEFORE REPLACING THE TUBE, DAS OR
DETECT
OR.
WARNING!
ELECTROCUTION ! DANGEROUS VOLTAGES ARE PRESENT ON UNSHIELDED TERMINAL.
INTRODUCTION1–2
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1-1-2
Operator Console
WARNING!
ELECTRICAL SHOCK HAZARD ! DANGEROUS WORKING
Rotation Fan Assemblies ! Do
not place any item into rotating blades. Use extra care when working near Fan
VOLTAGES EXIST ON EXPOSED SURF
ON LIVE EQUIPMENT
CAUTION
NOTICE
ACES. USE EXTREME CAUTION WHEN
2234976
assemblies.
Turn OFF power before removing or inserting any board of plug.
INTRODUCTION1–3
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INTRODUCTION1–4
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SYSTEM

TABLE OF CONTENTS
SECTION PAGE
SECTION
1 – CHECKS DURING SYSTEM INST
1-1 CHECK PRIOR TO APPLYING POWER 1–1. 1-2 GROUND CONTINUITY CHECK 1–4. 1-3 TEMPERATURE 1–5 1-4 POWER LINE VOLTAGE 1–6. 1-5 LOAD DISTRIBUTION 1–8. 1-6 EMERGENCY OFF TEST 1–10. 1-7 FILTER 1–10 1-8 CUSTOM PARAMETER 1–10. 1-9 X–RAY TUBE OVERHEAT SAFETY 1–11. 1-10 SCAN TEST 1–12.
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ALLATION 1–1.
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SECTION
SECTION
SECTION
SECTION
2 – SOFTW
2-1 GENERAL 2–1. 2-2 FD FOR SYSTEM/OPTION SOFTWARE 2–3. 2-3 PRE–ATINST PROCEDURE 2–5. 2-4 ATINST 2–11 2-5 POST–ATINST PROCEDURE 2–17.
2-5-1 Loading Version 3.02 System Software 2–25. 2-5-2 Loading Version 4.00 System Software 2–27. 2-5-3 Loading V/R 4.01 System Software 2–34. 2-5-4 Loading V/R 4.02 System Software 2–36.
3 – X–RA
3-1 GENERAL 3–1. 3-2 PLANE OF ROTATION 3–3. 3-3 DETECTOR BEAM ON WINDOW 3–6. 3-4 GRAVITY SAG 3–9. 3-5 ISO CENTER ALIGNMENT 3–14. 3-6 FILTER CENTER ALIGNMENT 3–18.
4 – SYSTEM CALIBRA
4-1 GENERAL 4–1. 4-2 CALIBRATION 4–2 4-3 CT NUMBER ADJUSTMENT 4–4.
5 – IMAGE PERFORMANCE VERIFICA
5-1 GENERAL 5–1. 5-2 IMAGE PERFORMANCE 5–2. 5-3 QUALITY ASSURANCE 5–5.
ARE LOADING 2–1.
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Y ALIGNMENT
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TION 4–1.
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TION 5–1.
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3–1.
SYSTEMi
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
blank
2234976
SYSTEMii
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
SECTION 1 – CHECKS DURING SYSTEM INSTALLATION
1-1 CHECK
This
section assumes all wiring and cabling is complete, equipment is installed, and that the following circuit
and switches are OFF.
PRIOR T
O APPL
YING POWER
CAUTION
Leave all power to the System OFF and tagged until power is called for in a specific step.
D
BREAKER IN P
D
6 BREAKERS (CB 1 – 6) in XG cabinet
D
4 REAR BREAKER SWITCHES (SW 1 – 4) and 1 BREAKER (NFB) in Gantry
.D.B (Power Distribution Box) for hospital supply
(NFB is only for System with T
able P9155AF)
2234976
breakers
D SER
D
D
Illustration 1–1
VICE SWITCH in Gantry SYS–OFF–MNL SWITCH in Gantry 2 BREAKERS (NFB1, 2) in OC
XG Cabinet
CB6
CB1CB5
TM1 TM2
SYSTEM1–1
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-1
CHECK PRIOR T
Illustration 1–2
O APPL
Gantry
2234976
YING POWER (continued)
Servo Amp
Sub Board
TGP Board
Service Switch (SYS/OFF/MNL)
Service Switch
DANGER!!
FATAL COLLISION HAZARD!! WHEN ‘CONTROL’ SWITCH LOCATED ON THE GANTRY REAR BASE IS TURNED ON (WITH THE ‘SCAN’ SWITCH ON), THE GANTRY WILL ROTATE DUE TO INITIALIZATION.
Note
The ‘Scan’ and ‘TBL/Tilt’ switches must be turned ON before turning ‘Control’ switch ON. The switches
turning ON sequence is as follows:
‘Scan’ ON ––> ‘TBL/T
ilt’ ON ––> ‘Control’ ON
The ‘DAS/Det’ switch ca be turned ON any time.
SYSTEM1–2
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-1
CHECK PRIOR T
Illustration 1–3
O APPL
YING POWER (continued)
Operator Console
2234976
NFB1, NFB2
SYSTEM1–3
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-2
GROUND CONTINUITY CHECK
V
erify that you removed the four(4) tilt lock plates and pulled out the Gantry azimuth lock pin.
1. Review illustration xxx, SYSTEM GROUNDING DIAGRAM schematics in the Installation Manual (P9018AS), and
check that all connections are mechanically secure at both ends.
2.
Use a multimeter of equivalent device to measure the DC resistance between the following components in the System, and verify that the resistance of each is less than
Ground specifications ≤ 0.1
T
able 1–4
GND (PDB) GND (XG) GND (GANTRY) GND (GANTRY) GND (TABLE)
Ground Continuity Check
FROM TO Resistance
.
GND (XG)
0.1Ω.
()
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GND (XG) GND (OC) GND (OC) GND (MT)* GND (OC) GND (MFC)* GND (OC) GND (OD)* GND (OC) Note:
* indicates optional components.
GND (Advantage Windows)*
SYSTEM1–4
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-3 TEMPERATURE
During the installation and start–up of the system you must take continuous temperature checks to make sure the environment meets specifications listed in Section 3 of the Preinstallation manual (P9018AR). Excessive tempera­ture,
coupled with reduced air flow from clogged filters, may overstress components and cause failures.
Filters
Check
and clean all electronic equipment dust filters. GE recommends initially doing this on a weekly basis, because new installations nance
interval as site environment improves.
Specifications
During installation, use the temperature/humidity recorder and thermometer to record the temperature and relative humidity tions.
in the scanner room. Make sure the data you collect meets the following temperature and humidity specifica
D Scanner
always have dust and dirt present at this stage. Over a period of time, you may increase the mainte
Room
–T
emperature :
20°C ∼
28
°C
2234976
-
-
Action
Contact tions.
Relative Humidity :
D Operator’
the air conditioning supplier or your local GE service department when your data fails to meet any specifica
s Room and/or Equipment Room
–T
emperature :
Relative Humidity :
40% ∼ 70% (Non Condensing)
15°C ∼ 20% ∼ 80% (Non Condensing)
30
°C
-
SYSTEM1–5
GE MEDICAL
REV
0
1-4
POWER LINE VOL
Input Selection of 200V or 208V
V
erify that the following connections in X–Ray Generator meet the input power voltage.
SYSTEMS
FUNCTIONAL
TAGE
CT SYTEC/SYTEC I SERIES
CHECK /
ADJUSTMENT
2234976
Illustration 1–5
TM3 TM4
200V C 208V 200V C 208V
TM3 TM4
200V C 208V 200V C 208V
V
oltage Selection
For 200V System
For 208V System
SYSTEM1–6
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-4
POWER LINE VOL
The
following assumes that the power source for the system was checked for mean voltage, as well as any line
disturbance
Instrument
Use
the same instrument (Dranetz, etc.) to monitor line voltage during this check that you used during the preinstalla
tion
check. The recommended line analyzer is or Dranetz Model line monitor plug in modules. Y mean voltage, surges, sags, short term impulses, and frequency drift.
Check Using an Instrument
Monitor the input power lines (200V
during preinstallation site checks.
D V
erify that the current line voltage equals the voltage measured during the preinstallation check.
D Verify
that mean line voltage does not fall outside of equipment specifications during the day to day opera
tion
of other site equipment during the installation period.
TAGE (continued)
AC or 208V
the Dranetz Model 606–3 (3 channel) with the 101 frequency option,
ou can use a
AC) to the System at the System. Check in particular:
similar analyzer
, as long as it can monitor and report
2234976
voltage
-
-
D Look
From the printouts, ensure that the power supply meets the following criteria :
Check Using an Oscilloscope
Monitor between the oscilloscope’ harmonics of the third, seventh, and eleventh derivative will be the most prevalent.
Action
Investigate any condition that falls out of spec. Identify the problem source(s) and resolve the problem.
the power lines with an oscilloscope and verify that no significant distortion, noise or transients exist. Switch
for any line voltage disturbances and check for a correlation between disturbances and system mal
functions
D
Line V
D
Daily V
D Frequency :
such as “Aborts” or component failures.
oltage :
oltage V
ariation :
s long and
200V
AC (50 Hz/60 Hz) (Normal Steady State)
208V
AC (60 Hz) for U.S.A. (Normal Steady State)
+10% to –5% from nominal steady state (50Hz) +6% to –9% from nominal steady state (60Hz)
50Hz ± 0.5Hz, 60Hz ± 0.5Hz
short
time base to monitor for spikes, as well as line drift over time. Generally
-
SYSTEM1–7
GE MEDICAL
REV
0
1-5 LOAD DISTRIBUTION
Before
attempting this power application and functional check,
instructions
SYSTEMS
given in ‘Checks prior to Applying Power
ELECTRIC SHOCK HAZARD !! DANGEROUS TO
PERSONNEL AND EQUIPMENT
VOLTAGES EXIST WITHIN THE UNIT
make sure that the breakers and switches match the
.’
WARNING!
, USE EXTREME CARE TO A
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
VOID INJUR
ADJUSTMENT
2234976
Y
Follow this procedure Follow this sequence to protect you and the equipment from irreparable damage.
1. Preparation
a.
Remove the following covers:
D XG Covers (front and rear) D OC Covers (front and rear) D T
able Bottom Cover
D
Gantry Left side Cover
b. V
erify again that all breakers and switches are OFF according to ‘Checks prior to Applying Power
c. V
erify that wiring and cabling are correctly connected.
d.

2.
Switch ON the breaker on the power distribution box (hospital supply).
3.
Measure 200 (or 208) V It should be
4.
Switch ON the ‘TRANS’ (CB1) breaker on the XG.
exactly
200 (or 208) ± 20V
in the order it was written. This procedure was developed with your safety in mind.
AC between terminals 1 and 2 (or 2 and 3) on TM1 on the XG.
AC.
.’
V
erify that the ‘Power
5.
Switch ON the ‘DAS’ (CB3) breaker on the XG.
6.
Measure 100V
7.
Push the ‘Power Listen for the sound of contactor K1, K2 and K3 actuating in the XG. Check that the plunger indicators on K1,
K2
and K3 are pulled into the relay bodies.
AC between terminals 6 and 7 on TM2 on the XG. It should be
’ lamp in the front upper left corner of the XG turns ON.
’ switch on the OC.
100 ± 10V
AC.
SYSTEM1–8
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-5 LOAD DISTRIBUTION (continued)
8. Switch
9. Push
On the ‘OC’ (CB5), ‘TG1
voltages:
D 100 ± D 115 ± 11.5VAC D 200
the ‘Power
10V
AC
(or 208) ± 20V
’ switch on the OC. V
15’ (CB4) and ‘TG200/208V’ (CB2) breakers on the XG, and
.
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
AC
.
. . . . . . . . . . . . . .
FATAL COLLISION HAZARD !! WHEN BREAKERS LOCATED ON THE GANTRY REAR BASE ARE TURNED ON, ALWAYS TURN THE SWITCHES ON IN THE FOLLOWING ORDER.
‘SCAN’ ON ‘TABLE/TILT’ ON ‘DAS/DET’ ON ‘CONTROL’ ON
(CONTROL SWITCH MUST BE TURNED ON LASTLY.)
check the following
between terminals 10 and 1 between terminals 4 and 5 on TM2 (for TG1 between terminals 1 and 2 (2 and 3) on TM2 (for TG200/208V)
erify that the K1, K2 and K3 are turned OFF
1 on TM1 (for OC)
15V).
DANGER!!
2234976
FAILURE TO HEED THIS WARNING MAY LEAD TO GANTRY ROTATION AND RESULT IN PERSONAL HARM, HARM TO OTHERS OR DEATH.
10. Switch
ON all breakers and switches according to ‘Checks prior to Applying Power
FATAL COLLISION HAZARD !! VERIFY
THA
T NO PEOPLE ARE IN THE SCAN ROOM. THE GANTR AUTOMATICALLY IMMEDIATELY AFTER THE OC POWER SWITCH IS TURNED
ON. WHEN THE GANTR CAN BE CAUGHT IN THE GANTRY. FAILURE TO HEED THIS WARNING MAY RESULT IN PERSONAL HARM, HARM TO OTHERS, OR DEATH.
11. Push
the ‘Power
V
erify that the ‘OC Power
V
erify that the 16 Fans rotate properly
’ switch on the OC.
.’
DANGER!!
Y ROT
Y COVERS HA
’ lamp turns ON, and ‘System Preparation’ is displayed on the CR
VE BEEN REMOVED,
ATES
PEOPLE
T monitor
D Six(6) Fans D Nine(9) Fans D One(1) Fans
.
. . . . . . . . . . . . . . . . . . . . . . . . .
.
. . . . . . . . . . . . . . . . . . . . . . . .
.
. . . . . . . . . . . . . . . . . . . . . . . .
upper rear part bottom side of the nest chassis behind power supplies
SYSTEM1–9
GE MEDICAL
REV
0
1-6
EMERGENCY OFF TEST
1.
Press the emergency switch on the OC. Verify
tector).
SYSTEMS
that contactor K1, K3 and K4 in the XG turn OFF
FUNCTIONAL
, and cut the power to the T
CT SYTEC/SYTEC I SERIES
CHECK /
able/Gantry (except DAS/De
ADJUSTMENT
2234976
-
2. Press There are two emergency switches on the Gantry and one emergency switch on the XG. Perform this emergency
OFF
1-7 FILTER
There are on Filter in the OC and two in the XG.
1.
2.
3.
4.
1-8 CUST
the ‘Power
test on each on the three emergency switches.
D
OC : Horizontal. one on the bottom of OC –– housed within a gold mesh filter enclosure.
D
XG : V Slide the filter at the bottom of the OC forward until it is removed from the OC. Remove the front and rear covers of the XG and gentry pull the the foam out of each enclosure. Suck up any dust on the filters with a vacuum cleaner Slide or fit each filter back into its enclosure.
OM P
’ switch twice to reset emergency OFF
ertical, one each on the front and rear cover –– foam held in place by a white mesh enclosure.
ARAMETER
, and re–apply power
Run
the Custom Parameter program to set the correct system configuration. Y
you
change the system configuration (adding the option, etc.).
Refer to Functional Check/Adjustment manual, System, Section 2.
Note
No image data must exists on the system hard disk if you set or change the following parameters.
Optical Disk Option
Magnetic T – Frequency –
Machine Number –
Hospital Name
BOOT floppy must be in the floppy disk drive to change the parameters.
ape Option
Note
ou must also
run this program any time
SYSTEM1–10
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-9 X–RA
Check the overheat detection function by performing the following:
1.
2.
3.
4.
5. T
Y TUBE OVERHEA
Switch OFF the ‘Scan’ switch at the Gantry rear base Remove the both side covers from the Gantry Disconnect the rotor cable. If the connector is not accessible, perform the following: a.
Set the Service switch to ON on the SUB Board.
b.
Rotate the Gantry until the X–ray tube reaches the 3 o’clock position.
c.
Set the Service switch to OFF
Switch ON the ‘Scan’ switch.
ry to perform a scan.
V
erify that a scan can not be performed and the “XG Fail” error message is reported on the status screen.
T SAFETY
2234976
V
erify that the ‘OH’ LED on the Power CONT Board in the XG is illuminated.
6.
Switch OFF the ‘Scan’ switch.
7.
Reconnect the connector
SYSTEM1–11
GE MEDICAL
SYSTEMS
CT SYTEC/SYTEC I SERIES
FUNCTIONAL
CHECK /
ADJUSTMENT
REV 0
1-10
SCAN TEST
This
check assumes successful completion of all functional checks for XG, Gantry T
tec
i series Operator Manual for scanning operation instructions.
DANGER!!
X–RAY EXPOSURE !! IN
THIS SECTION, THE X–RA
THAT
Warm
Up Scan
1.
Make sure system power is ON an the ‘New Patiant’ and the ‘W
NO PEOPLE IS IN
‘W
arm Up’ should blink just after power up or system reset.
THE SCAN ROOM WHENEVER SCAN IS PERFORMED.
Y EXPOSURE IS PERFORMED. ALWAYS VERIFY
arm UP’ arear are blinking on LCD screen.
Note
2234976
able and OC. Check CT Sytec/Sy
-
2.
Make sure mothing is in the scan arear in the Gnatry room.
3. T
ouch the ‘W
Make sure all warm up scans complete without error
aum Up’ prompt to start the tube warm up program.
SYSTEM1–12
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