Legend for earthing and cabling diagramZ--20.1..................................
E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
OPTIMUS R/F(d/02.1)1--0.2
OPTIMUS_RF_1_d021_inh
OPTIMUS R/F
INTRODUCTION AND TECHNICAL DATA
1.Product information
The Optimus family of generators for radiography is based on computer-controlled converter technology.
The converter operates in the non-audible frequency range.
Applicable options are essentially achieved by releasing software modules using customized PAL ICs.
Control between the internal Function Units (FUs) and the external online equipment takes place by a CAN bus.
Safety-relevant signals are transferred directly on the so-called “Signal bus”.
Units without any CAN interface are operated by the ”Adapter for 4 auxiliary units WA” option.
1.1.Applications
-- Radiography
-- Tomography
-- Fluoroscopy
1.2.Options
Component overview according to the commercial catalogue.
Only the versions in the current commercial catalogue can be ordered.
If an existing generator is to be upgraded the commercial department must order:
MGR0011 (upgrade of an existing configuration)
+ MGRxxxx
+S/N
The latest information on further tubes which are connectable is available at the service center Hamburg.
Note
When the generator is retrofitted it is important to use the screened cable 3 x 1.31mm
2
(0722 215 02054) as the
stator cable.
If necessary exchange the old stator cable.
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1--3
3.Mechanical data
C
For installation dimensions and weights see drawings Z--1.1.
Transport data:
Weights [kg]Dimensions [cm]
aseNo.Contents
-- Generator cabinet
1
-- Operating panel
-- Cables
netgrosslengthwidthheight
1782262108284
OPTIMUS R/FINTRODUCTION AND TECHNICAL DATA
1--tube version:
73
100
776780
2
2--tube version:
88
115
Contents: H.V. generator
OPTIMUS R/F(d/02.1)1--4
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OPTIMUS_RF_1_d021
OPTIMUS R/F
INTRODUCTION AND TECHNICAL DATA
4.Environmental data
The environmental data comply with to PMS standard UXW 13600.
4.1.Electrical environment
Class S0 -- Dedicated mains supply, 3 phases and neutral. Thus single phase voltage is also available.
A low impedance, permanently installed connection, fed in by the step down transformer of the hospital to supply
large systems like in MR, CT and X--ray departments is required.
Note
Use always a mains cable with 4 wires and concentric PE--shield, type NYCY.
4.2.Climatic conditions
Ambient temperature10_C--40_C...................
Relative humidity15% -- 90%; no condensation.......................
-- External mains transformer PDU
9890 000 0260x is required
(requiresmodificationatthe
EMC-- filter of the kV power unit).
X-ray
installation
L2
L3
Caution!
Ensure the sequence of phases in the wall junction box corresponds to designations L1, L2, L3.
OPTIMUS R/F(d/02.1)
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-- 400V / 440V / 460V / 480V
1--9
5.4.2. Calculating the mains resistances
Note
The cross section of lead l
must not exceed 25mm2. (See figure below).
3
OPTIMUS R/FINTRODUCTION AND TECHNICAL DATA
If possible the sum of R
smaller than the R
requires.
XG
0,R1,R2
and R3should be
R
+R1+R2+R3<R
0
With higher internal mains resistances the generator
output is reduced correspondingly.
R
designates the mains resistance of the distributor transformer
0
R
depends on the length of lead l1between distributor transformer and mains distributor
1
L1
L2
L3
l
1
and on the selected cross section as well:
==>R
R
consists of upstream elements such as:
2
1=l1
× R
Cu
RCufrom table below
-- Emergency-OFF switch4.0mΩ.................
-- Earth-leakage circuit breaker5.5mΩ............
l
3
XG
MEX 100
L1
L2
L3
357J94
-- Fuse5.5mΩ.................................
-- Surge arrester WN23.0mΩ...................
R
depends on the length of lead l3between mains distributor and wall junction box
3
and on the selected cross section as well:
==>R
3=l3
× R
Cu
RCufrom table below
The resistances consider the go and return lines so that the calculation can be based on simple cable lengths.
Copper cross section
[mm
2
]
Resistance R
[mΩ/m]
Cu
162.19
251.4
351.0
500.7
700.5
950.38
1200.30
1500.24
Note
500m
Ω
is the absolute max. mains resistance.
E 1998 Philips Medical Systems
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OPTIMUS R/F(d/02.1)1--10
OPTIMUS_RF_1_d021
OPTIMUS R/F
INTRODUCTION AND TECHNICAL DATA
5.4.3. Earth-leakage circuit breaker
To be provided between mains fuse and X-ray installation depending on local regulations.
Siemens earth-leakage circuit breaker:
-- Order No.: 5SZ3 466 OKG00
-- Rated fault current 30mA
-- Rated current 63A
-- Connection terminals for wire cross sections of up to 25mm
2
5.4.4. Emergency--OFF device
To be provided depending on local regulations.
There are 2 possibilities:
1.All the Emergency--OFF buttons are connected in series and looped into the switch--ON circuit (12VDC) of
the generator.
2.The Emergency--OFF circuit acts on an external mains contactor which switches OFF the power before it is
fed into the generator.
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OPTIMUS R/FINTRODUCTION AND TECHNICAL DATA
6.Tools
-- Service engineer standard tool kit
-- Service-PC:
IBM-compatible, 640kB RAM, 3.5” floppy disk drive, ≥ 1 serial port
-- Installation and service software OMA: 4512 116 022xx / OMB: 4512 1 16 023xx.
Supplied on two floppy disks within this generator service manual.
-- PC-hardkey (DIAGGEN):
Necessary to carry out the installation and to run the service software (special programmings, fault finding).
-- 0-modem cable:
Minimum length is distance between generator cabinet and operating desk.
Male 25-pole D-Sub connector at the generator side.
A 5m data cable of bucky controller can be used: 4512 130 5693x
Caution!
AMPLIMAT cables 9803 507 0xx02 (for hybrid measuring chambers 9803 509 xxxxx) with 3--Plus plugs at
both ends must be connected in the generator by the following adapter for each cable:
Adapter for AMPLIMAT cable: 4512 108 09042. The generator includes 1 adapter.
The hybrid measuring chambers 9803 509 xxxxx require connection (chassis) between contacts:
D--Sub end GND (13) <---- --> RF 0V (8)(generator input)
or
3--Plus end GND (N) <------> RF 0V (J)(generator input)
This connection is established by the adapter for the AMPLIMAT cable.
See drawing Z1--6 ”Basic interface”.
In case a hybrid measuring chamber 9803 509 xxxxx is not operated with the required
make sure to establish this connection (13 <-- -- --> 8) in the D--Sub connector!
For ALC measuring chambers 9890 000 016xx connection GND <------> RF 0V is not permitted.
Therefore, ALC measuring chambers AMPLIMAT cables 9890 000 017xx should always be used.
Operating desk
Note
Use the shortest cables. Noise immunity increases.
cable set10m9890 000 02411.......................
20m9890 000 02421.......................
30m9890 000 02431.......................
8.3.Manpower
At least two persons are necessary to insert the H.V. tank in the generator cabinet.
The weight of the 2--tube version is about 88kg.
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1--15
OPTIMUS R/FINTRODUCTION AND TECHNICAL DATA
9.Planned maintenance
The technical documentation for carrying out maintenance work in compliance with the applicable regulations are
available at the responsible authority of Philips Medical Systems.
The importance of having maintenance implemented is pointed out to the operator in the operating instructions.
It must be guaranteed that the person carrying out maintenance work knows about the respective national
regulations and that this person observes these regulations throughout all steps of maintenance work.
E 1998 Philips Medical Systems
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OPTIMUS R/F(d/02.1)1--16
OPTIMUS_RF_1_d021
OPTIMUS R/F
1.Installing the wall junction box2--1........................................
S Mount the wall junction box at the place where the generator is intended to be installed.
(See drawing “Connection of generator” in section 1 and manual UNIT 4512 103 75380 for wall junction boxes).
S If necessary, install the optional surge arrester WN inside the wall junction box.
(See surge arrester documentation.)
S If applicable, mount the filler panels of the generator to the wall junction box.
S Have the mains cable present at the clinic connected to mains terminal MEX by a person who is authorized for
this job.
S Check the phase sequence of L1, L2 and L3.
Warning!
Switch OFF the mains supply present at the clinic and make sure that it cannot be switched
ON again accidentally
.
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2--1
OPTIMUS R/FINSTALLATION
2.Preparatory work
2.1.Mounting of the H.V. generator in the cabinet
Caution!
Do not tilt the H.V. generator while transporting it.
In case of a tilting angle larger than 45_, the setting-to-work of the generator can be started not before a
waiting time of about 8 hours has p assed. Otherwise the H.V. generator may be destroyed by electrical
sparkover.
S Unpack generator cabinet E.
S In case the packing material is strongly soiled with
oil check the oil level. Repair it if necessary.
Tolerance:2mm
Oil:Shell Diala G in 2.5l container
4512 148 43172
deaerating hole
24mm at 20 - 30_C
22mm at 30 - 36_C
329H97
S Remove the deaerating screw completely from the cover of the H.V. generator. Only this way the precision of
the high voltage measuring divider corresponds to the specification.
In case of return shipment of the H.V. generator this screw must be fixed again. Therefore, keep the screw laying
on top of the cover.
Caution!
Make sure that no foreign matter falls into the oil. Otherwise the transformer must be exchanged.
S Take the two transport bars from the rear side of the cabinet.
S Lift the H.V. generator into the generator cabinet with the transport bars.
The 4 connecting bolts GX1001 to 1004 must point at the front of the generator cabinet.
E 1998 Philips Medical Systems
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OPTIMUS R/F(c/02.1)2--2
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OPTIMUS R/F
Generator
R
k
Routethecablesalongthefrontandlef
t
Seedrawingp
age2--4
thereasonofkVsymmetry
Not
e
k
W
Seedrawingp
age2--4
2.2.Electrical connection of the H.V. generator
S Connect the H.V. generator electrically:
INSTALLATION
Generator
version
50/65/80kW
50kW
Connection
emar
from<------>to
E1 (GND)<------>GX1100 (GND)Ground
ZX12<------>G100X15
ZX35<------>G100X14
Route the cables alongthe front and left-hand edge of the H.V. generator. Fix them.
Twist the cables!
QC13:1<------>GX1003
Note
The sequence of the connecting bolts is not
in numerical order.
Push the screening cap forward over the
QC03:1<------>GX1002
connecting bolts and tighten it. Attach the
converter cables including the screening to
the screening cap with cable ties.
The 50kW version might have direct links
GX1001<------>GX1003
on each side or a link on one side and a
choke of 1 ... 6 loops on the other side for
.
.
GX1004<------>GX1002
QC13:1<------>GX1001
QC03:1<------>GX1002
65/80
2QC13:1<------>GX1003
2QC03:1<------>GX1004
WGX61<------>GK1:1
50/65/80kWWGX67<------>GK1:2
2ndtube
WGX62<------>GK2:1
WGX68<------>GK2:2
Note
Do not change these links or chokes.
Twist the cables!
The sequence of the connecting bolts is not
in numerical order.
.
Push the screening cap forward over the
connecting bolts and tighten it.Attach the
converter cables including the screening to
the screening cap with cable ties.
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2--3
OPTIMUS R/FINSTALLATION
S Turn the two earthing angles of the H.V. generator outward and screw them on to the members of the cabinet.
converter cables (twisted)
fixed at the screening cap
earthing angles
Connection of
50kW version
screening cap
terminal for the screen
of the filament cable
fixing signal cable
199H96
Connection of
65/80kW version
Twist the cable
Link or choke
X1001
QC13:1
QC 03:1
X1002X1003X1004
Link or choke
Twist the cables
QC13:1
QC03:1
X1001 X1003
X1002
2QC13:1
2QC03:1
X1004
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OPTIMUS R/F(c/02.1)2--4
OPTIMUS_RF_2_c021
OPTIMUS R/F
3.Installing the operating panel
3.1.Desk version
See ”Operating panel” in section 1.
Accessories:
-- 2 feet for the unit
-- 2 elastic buffers, black
-- 5 insert strips for the RGDV buttons
-- sheet with RGDV symbols
-- release switch
S Unpack the desk carefully.
S Mount the release switch on the left-hand or
right-hand side of the desk:
Mount the holding bracket to the edge of the
desk (1) with the two M4x10 countersunk screws.
INSTALLATION
C300 X3
1
2
3
For visual reasons the release button should be in
line with the +/-- buttons on the control desk. Use
the appropriate holes in the bracket.
Slide the release switch onto the bracket.
Fasten it parallel to the desk edge with the two
M4x10 cheese-head screws, securing rings and
washers (2).
S Screw in the 2 feet for the unit at the bottom of the
desk.
S Glue the 2 black elastic buffers to the front edges
of the bottom of the desk such that they are acting
as the front feet.
184H95
2x
150H94
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2--5
S Define the assignment of the RGDV buttons 1 ...
8. Glue the respective symbols to the insert strips
which are provided with subsidiary lines (1).
OPTIMUS R/FINSTALLATION
S Raise the keyboard about 3mm above the desk.
Useanallenkey(2).
S Push the insert strips under the keyboard foil.
Press the angulated, protruding end of each insert
strip into the housing of the desk (3).
S Lower the keyboard to its initial position (4).
S Remove the cable cover at the rear side of the
desk.
S Connect the cables:
Supply cableEZX20<-- ---->C200X1
EZX6<------>earth
Data cableEZX46<------>C300X1
Release switch<-- ---->C300X3
Patient Data Organizer<---- -->C300X2 (option)
(1)
(3)
(4)
3mm
(2)
151H96
S Check the function programming plug for X44 as shown in Z2--5.2 and put it into socket EZX44.
S Provide drag relief for the supply and data cables with the clamp present on the desk.
S Screw on the cable cover.
Make sure that the cable drag relief device of the release switch (1 cable tie) remains under the cover.
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OPTIMUS R/F
3.2.Stand version
See ”Operating panel” in section 1.
Additional accessories:
-- 4 dowels S10
-- 4 hexagon cap screws 8 x 60mm
-- 4 washers
S Position the desk stand according to the respective room layout.
S Mark the fixing holes on the floor.
S Set the 4 dowels supplied into the floor (drill bit: 10mm).
S Screw on the desk stand with 4 screws and washers.
S Route the supply and data cables from the bottom to the top within the desk stand.
Provide the cables with drag relief.
Cable ends including plugs should protrude beyond the edge of the desk by about 500mm.
INSTALLATION
S Mount the release switch as described in chapter 3.1.
S Assign the RGDV buttons 1 ... 8 to the desired symbols as described in chapter 3.1.
S Connect the cables to the desk as described in previous chapter 3.1.
S Screw on the cable cover.
Ensure the cable drag relief device of the release switch (1 cable tie) remains under the cover.
S Mount the operating panel on the stand.
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2--7
3.3.Wall mounted version
See ”Operating panel” in section 1.
Additional accessories:
-- 4 ball-head bolts
-- 4 dowels S8
-- 4 hexagon cap screws 5 x 30mm
-- 4 washers
-- 2 screws 4 x 10mm
-- 2 angle plates
-- 4 nuts
OPTIMUS R/FINSTALLATION
S Screw on the angle plates into the wall frame.
The short ends of the angles must be pointing
upwards.
S Screw the 4 ball-head bolts into the wall support.
S Mark the 4 fixing holes of the wall frame at the
respective place on the wall.
S Set the dowels supplied into the wall
(drill bit: 8mm).
S Screw on the wall frame with the 4 hexagon cap
screws and washers.
S Provide drag relief for the supply and data cables
in the wall frame.
Cable ends including plugs should protrude
beyond the edge of the desk by about 500mm.
S Mount the release switch as described in chapter
3.1.
S Assign the symbols to the desired RGDV
buttons 1 ... 8 as described in chapter 3.1.
Desk fastening (2x)
Wall fastening (4x)Ball--head bolt (4x)
Cable passage
189H96
S Connect the cables to the desk as described in
previous chapter 3.1.
S Mount the operating panel on the wall frame and
fix it with the left two screws.
S Screw on the cable cover.
Ensure the cable drag relief device of the release
switch (1 cable tie) remains under the cover.
The wall frame is designed symmetrically.
In case connection cables come from above the
frame can be mounted upside down.
Only the ball-head bolts and the angle plates still
keep their position.
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OPTIMUS R/F
3.4.Supporting angle version
INSTALLATION
S Screw the ball-head bolts (2) into the
supporting angles (1):
Left angle-- ----> on the left at the bottom
Right angle ------> on the right at the bottom
S Press the ball-head bolts (2) into the respective
snap bushing of the desk (4).
S Fix the supporting angles (2) to the desk (4) with
the2screwsM4(3).
3
2
1
4
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2--9
3.5.Additional release switch
An optional second release switch is supplied with a
longer spiral cable: 9890 000 0249x
The scope of delivery includes various wall hooks
and an adapter cable. Electrical connection is made
in parallel with the existing release switch which is
mounted on the desk itself.
S To do this, plug the pins of the adapter cable into
the D-Sub connector of the existing release
switch.
Sequence:
OPTIMUS R/FINSTALLATION
Adapter:
connector pin
<------>
D-Sub:
connector pin
1<------>6
2<------>9
3<------>7
Reference: Figure below and drawing Z1--11.1 “Operating panel C” in section Z1 “Schematic drawings”.
Hand switch with adapter (9890 000 0249x)
Hand switch 4512 103 7200x
(9803 700 3000x)
30-- / UI-- / --24V HS
S1
89
15
S2
11 1 2
36
32-- /HSPRRQ
31-- /HSEXRQ
br
1
bl
blk
2
3
1
2
3
Cable adapter
4512 104 3823x
br
bl
6
7
9
blk
Operating panel C
1
6
2
7
3
8
4
9
5
C300 X3
EXP PREP
096L99
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OPTIMUS R/F(c/02.1)2--10
OPTIMUS_RF_2_c021
OPTIMUS R/F
Mai
INSTALLATION
4.Electrical connection
4.1.Earthing
See ”Earthing diagram” in section 1.
4.2.Mains conn ectio n
4.2.1. Mains connection of the generator
Warning!
Switch OFF the mains supply present at the clinic and make sure that it cannot be switched
ON again accidentally
See ”Connection diagram” in section 1.
S Measure the internal mains resistance at the terminal MEX with a suitable measuring instrument.
.
L1 - L2: R
L1 - L3: R
L2 - L3: R
= ............... mΩ
i
= ............... mΩ
i
= ............... mΩ
i
Required max. mains resistance at generator input:
ns voltage
190V*--40mΩ--
220V*130mΩ60mΩ--
240V*160mΩ80mΩ--
380V500mΩ300mΩ200mΩ
400V500mΩ300mΩ200mΩ
440V500mΩ350mΩ240mΩ
460V500mΩ350mΩ240mΩ
480V500mΩ400mΩ300mΩ
Mains resistance
30kW50kW65/80kW
*with external mains transformer (max 50kW)
Maximum permissible internal mains resistance:500mΩ
Internal resistance of Power Distribution Unit PDU:20mΩat 50Hz
23mΩat 60Hz
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2--11
OPTIMUS R/FINSTALLATION
Caution!
Connect phase wires in correct phase sequence.
S Connect the mains cable of the generator to terminal MEX: L1 / L2 / L3 within the wall connection box.
If the optional Power Distribution Unit PDU WT is fitted, connect the cables at that point to terminal WTX2.
S Connect the examination unit supply (max. 10A) to (230V / 400V):
Output 1Geometry powerENX2101/...5
Output 2I.I. / TV; GECO; UI; SYSCOENX2201/...9
Output 3ImagingENX2301/...9
Output 3 not switched by generator
4.2.2. Mains connection of the PDU
See delivered Unit Manual “Power Distribution Unit”.
E 1998 Philips Medical Systems
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OPTIMUS R/F
4.3.Stator connection
4.3.1. Shielding
Caution!
To suppress interferences of the high -speed
rotor control, the stator connections must be
provided with a 360_ screen at the tube and
generator end.
General remarks:
S Always use screened cables: 0722 215 02054.
S Shorten the stator cable to the required length.
Do not accommodate excess lengths at the
generator.
S Keep stator cable separate from all the other
signal cables to avoid interference.
S Earth the screen at both cable ends.
INSTALLATION
Screening procedure:
S Remove any enamel or dirt from the clamp
providing drag relief in the tube housing to make
sure the clamp is conductive.
S Remove the plastic covering around the clamp,
about 1cm (0.5”).
S Wrap copper foil around the visible screen of the
cable until the original diameter of the cable is
obtained.
S Remove the present red wire going from the
screen end to the earthing point of the tube
housing.
S Fix the screen of the stator cable with the clamp.
Ensure that the clamp is secured and the ground
contact works!
Wire must be discarded
Copper foil layers up to
the insulation diameter
ROT 350 fixing clamp
Screening of the stator cable.
327H97
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2--13
4.3.2. Connection
Caution!
Do not mix up the phases, otherwise components
of the rotor control may be destroyed.
OPTIMUS R/FINSTALLATION
At the tube
end
S Place the jumpers across terminals 100 and 200
according to the figure.
S Connect the stator cable:
wire 1------> phase U
wire 2------> phase V
wire 3------> phase W
U
SRO/RO
V
W
101202
109210
148H94
S Earth the screening of the stator cable at the tube
housing with the metallic clamp.
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OPTIMUS R/F
INSTALLATION
At the generator end: One--tube
version
See ”Connection diagram” in section 1.
S Connect the stator cable to the terminal EX1100
(U-V-W).
S Check the stator connection by measuring the
resistances:
U -- V= wire 1 -- 2≈ 11Ω
U -- W= wire 1 -- 3≈ 20Ω
V -- W= wire 2 -- 3≈ 9Ω
S If an inductance meter is available, measure the
following inductance values:
U -- V= wire 1 -- 2= 57mH ±10%
V -- W= wire 2 -- 3= 34mH ±10%
S Fix the screen below the screening clamp.
S Relieve the tension of the stator cable by a cable
tie.
E
rotor control
U
1
X1100
VW
2
3
cable tie
screening
clamp
tube
191H96
At the generator end: Two--tube
version
See ”Connection diagram” in section 1.
S Connect the stator cables to the terminals
EWG:K11/K12.
S Check the stator connections of both tubes by
measuring the resistances:
U -- V= wire 1 -- 2≈ 11Ω
U -- W= wire 1 -- 3≈ 20Ω
V -- W= wire 2 -- 3≈ 9Ω
S If an inductance meter is available, measure the
following inductance values:
U -- V= wire 1 -- 2= 57mH ±10%
V -- W= wire 2 -- 3= 34mH ±10%
S Fix the screen below the screening clamp.
S Relieve the tension of the stator cables by cable
ties.
E
screening clamps
WG
K11
642
2
1
3
1
2
tube 1 tube 2
K12
64
3
2
cable ties
198H98
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2--15
At the generator end: Three--tube version
See ”Connection diagram” in section 1.
S Connect the stator cables to the terminals
E1WG:K12 and E2WG:K11/K12.
S Check the stator connections of all 3 tubes by
measuring the resistances:
U -- V= wire 1 -- 2≈ 11Ω
U -- W= wire 1 -- 3≈ 20Ω
V -- W= wire 2 -- 3≈ 9Ω
E
1WG
K11
OPTIMUS R/FINSTALLATION
2WG
K12
64
2
3
1
2
K11K12
64
2
3
1
2
64
2
3
1
2
S If an inductance meter is available, measure the
following inductance values:
U -- V= wire 1 -- 2= 57mH ±10%
V -- W= wire 2 -- 3= 34mH ±10%
S Fix the screens below the screening clamps.
S Relieve the tension of the stator cables by cable
ties.
tube 2
screening clamps
cable ties
tube 1 tube 3
348H98
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OPTIMUS R/F
4.4.Signal cables
See: -- ”Connection diagram” in section 1.
-- Z1--6 ”Basic interface” in section “Schematic drawings”
4.4.1. Room decade cable
S Connect the door switches at the generator:
EZX1:8 <------> switch <------> 10
or
EZX1
EWGX2
or
EWGX3
room 1
room 2
INSTALLATION
1WGX3room 2
or
2WGX2room 1
2WGX3room 3
E W B X 2 2 :8 < -- -- -- > s w i t c h < -- -- -- > 1 0
In case no switch is present
l i n k :p i n 8 < -- -- -- > p i n 1 0
EZ150 K1:
max. switching and loading current = 1A
max. Load= 60VA AC
= 30W DC
Caution!
Make sure the polarity of the relay is correct.
SW UN EX
PO26V
CMSW
RM DR CT
RM DR 0V
4
5
6
8
9
10
Door switch connection.
Wall junction box
ME
--
+
screen
Umax.=230V
Imax.=1A
radiation
indication
door switches
143H94
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OPTIMUS R/FINSTALLATION
S In case of tube 2 or 3 is located in room 2 or 3 or
while room decades
--W G X 3o r
--1 W G X 3o r
--2 W G X 3
are intended to be used for room supervision the
soldering link WG W1 must be placed.
Only when this link is placed it is guaranteed that
relay WG K3 pulls up and room decade WG X3 is
activated when switch-over of the tube takes
place.
See Z1--14.xx ”Tube extension”.
S If needed connect an external relay for each
examination room to control external radiation
warning devices.
One relay inclusive cable is part of delivery,
Additional ones can be ordered: 4512 100 4523.
X11
1
4
2
5
3
6
soldering link
X13
1
2
EWG
W1
door s witches
room 1
X1X2
1
2
3
4
5
6
7
8
9
10
door s witches
room 2
1
2
3
4
5
6
7
8
9
10
X3
10
1
2
3
4
5
6
7
8
9
A mounting place is reserved on the mains
connection terminal MEX of the wall junction box.
Caution!
Make sure the polarity of the relay is correct.
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OPTIMUS R/F
4.4.2. Tube supervision
S Connect the thermal switch or the thermal sensor
of the tube housing assembly.
S Check polarity of contacts 9 and 10 to CAN
adapter to remote systems like D96.
EZX3
EWGX8
or
EWGX9
tube 1
tube 2
INSTALLATION
E1 WG X9 tube 2
or
E2 WG X8 tube 1
E2 WG X9 tube 3
For U.S.A. and U.K. only:
S Connect the HHS-lamp to indicate the selected
3
4
tube housing assembly.
6
PO 26V
7
9
10
CM TH SW
screen
Tube supervision connection.
4.4.3. CAN interface
Only for examination units which are provided with a CAN syst em interface.
S Connect the following plugs:
TH OL
CM TH
TH OL SW
HHS lamp
24V / max. 5W
D76
D76plus
R/F controller
9
10
SystemConnector
EZX23
signal bus
EZX42 or
EZX42--1
system CAN
EZX43 or
EZX43--1
system CAN
BukyDiagnost TH / TH2XX
DigitalDiagnostXXX
ThoravisionXXX
EasyDiagnost with Bucky unitXXX
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4.4.4. Adapter for 4 auxiliary units
OPTIMUS R/FINSTALLATION
Adapter for 4 auxiliary units RAD (Bucky, Tomo) WA / 1WA / 2W
A
Used for Bucky examination units which provide their control signals individually via decade cables.
Each of the release circuits and the Bucky decades can be assigned to one or several of the RGDV buttons 1...8
via software programming.
Survey: ”Connection diagram” in section 1
Z1--1.2”Block diagram Expansions” in “Schematic drawings” section
Detail:Z1--15.1 ”Adapter 4 aux. units WA / 1WA / 2WA” in “Schematic drawings” section
It provides:
1. 4 release decades to be used for
-- grid / syncmaster auxiliaries
-- HHS cassette present interlock
2. 2 Bucky decades to be used for
-- format size contacts (collimator, side fields ON/OFF)
-- Bucky--tomo remote switch--over
-- tomo ready condition
-- Bucky ready condition
-- HHS cassette present interlock
to be activated by SW programming (see chapter 8.2)
After activation via SW: Signals not provided by the system must be simulated by jumpers.
3. 1 decade EXON signal for the system via opto coupler
4. 1 decade (output) for 8 tomo trajectories
5. 1 decade for 8 tomo time inputs
6. 1 decade for 8 external APRT
-- WA backpanel programmed as 1WA = 2 AUX + 6 APRT
-- WA backpanel programmed as 2WA = 8 APRT
7. 1 decade for PSC (Patient Size Correction)
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OPTIMUS R/F
INSTALLATION
Adapter for 4 auxiliary units R/F (Fluoro, Bucky)
WB
Used for fluoroscopy and Bucky examination units which provide their control signals individually via decade
cables.
Each of the release circuits and the Bucky decades can be assigned to one or several of the RGDV buttons 1...8
via software programming.
Survey: ”Connection diagram” in section 1
Z1--1.2”Block diagram Expansions” in “Schematic drawings” section
Detail:Z1--15.2 ”Adapter 4 aux. units WB” in “Schematic drawings” section
It provides:
1. 4 release decades to be used for
-- grid / syncmaster auxiliaries
-- HSS cassette present interlock
2. 1 Bucky decade to be used for
-- format size contacts (collimator, side fields ON/OFF)
-- Bucky system ready condition
3. 1 fluoroscopy decade supporting
-- dose rate limiter (short SID)
-- l o c k -- i n
4. 1 decade EXON signal for the system via opto coupler
5. 1 decade cassette / camera remote switch--over
6. 1 decade for image intensifier and Scopomat measuring chamber formats
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7. 1 system decade providing external signals
-- generator ready display
-- prep or fluoro display
-- 5 minute fluoro warning display / buzzer
-- under exposure display
-- system reset for under--exposure / 5min buzzer
-- EXON signal for the system (potential free relay contact)
-- door contact
8. 1 decade for 8 external APRT
9. 1 decade for PSC (Patient Size Correction)
OPTIMUS R/FINSTALLATION
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OPTIMUS_RF_2_c021
OPTIMUS R/F
INSTALLATION
4.4.5. Dose inputs
S Connect the measuring chambers to the D-Sub connectors EZX21 / 22 / 31 / 32 / 41.
There are no assignement restrictions because the measuring chambers are allocated to the auxiliaries in SW
programming.
S Withdraw pins 101--102--103 or A--D--H for measuring field selection at the junior / extremity measuring chamber.
These measuring chambers have only one measuring field. The terminal for the left-hand field is used in other
configurations for switching over intensification and must not be connected here.
S Connect the photosensor dose output of DSI from Central Part E (BHX 12) to EZX41.
Only EZX41 sends the necessary signal REL (or REL_CH = RELease CHamber) for automatic and
non-automatic techniques.
Note
AMPLIMAT cables 9803 507 0xx02 (for hybrid measuring chambers 9803 509 xxxxx) with 3--Plus plugs at both
ends must be connected in the generator by the following adapter for each cable:
Adapter for AMPLIMAT cable: 4512 108 09042. The generator includes 1 adapter.
The hybrid measuring chambers 9803 509 xxxxx require connection (chassis) between contacts
D--Sub end GND (13) <---- --> RF 0V (8)(generator input)
or
3--Plus end GND (N) <------> RF 0V (J)(generator input)
This connection is established by the adapter for the AMPLIMAT cable.
See Z1--6 ”Basic interface” in section “Schematic drawings” of the generator manual.
In case of a hybrid measuring chamber 9803 509 xxxxx is not operated with the required
make sure to establish this connection (13 <-- -- --> 8) in the D--Sub connector!
For ALC measuring chambers 9890 000 016xx connection GND <------> RF 0V is not permitted.
Therefore, ALC measuring chambers AMPLIMAT cables 9890 000 017xx should always be used.
4.4.6. Patient Data Organizer PDO (option)
See operator’s manual Patient Data Organizer.
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OPTIMUS R/FINSTALLATION
4.5.H.V. cables generator side
See ”Connection diagram” in section 1.
S Mark the H.V. cables at the generator and the tube end with the correct polarity.
S Fix the H.V. cables on the left-hand side of the wall junction box on the middle rail to provide drag relief for the
cables. The short ends of the H.V . cables which are going to the H.V. generator must be routed in downward
direction in this area.
The free cable lengths including plugs should be about 1.5m.
S Twist the H.V. cables counter-clockwise by one turn and connect them to the H.V . generator.
The twisting of the cables allows that the H.V . cables can be put into a loop when the cabinet is placed against
the wall.
The H.V. sockets should always be filled with some oil. At least the lower half of the plugs must be wet with oil.
Caution!
Do not use a silicone washer.
Do not grease the plugs with silicone.
The union nuts of the high-voltageconnectors must be tightened up to ensure good electrical contact for
screening.
Only high-voltage connectors which have threaded flange halves may be used.
Older high-voltage cables still have connectors where the flange halves are kept together with a spring
washer.
In such cases the modification kit 4512 103 8085x is required.
4.6.Emergency--OFF circuit
S Connect the emergency--OFF buttons to EZX4:1/2.
If not necessary, link pins 1 -- 2.
See Z1--2.1 ”Power supply” in “Schematic drawings” section and Z2--5.2 “Backpanel Basic rack--2Z” in the
“Wiring diagrams” section.
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OPTIMUS R/F
5.Hardware programming
Programmings on PCB EZ150 basic interface:
Note
Never change jumper W1.
S Voltage supply for the amplifiers of connected
measuring chambers:
Voltage\Soldering link EZ 150 W2 EZ 150 W3
INSTALLATION
EZ 150
Basic interface
15V defaultOFFON
40VONOFF
WorkingvoltagerangeforALCmeasuring
chambers: 15
... 45V
Working voltage range forhybrid measuring
chambers: 40
... 45V
ALC measuring chambers can be recognized by the
code No. 4512 104 xxxxx.
Hybrid measuring chambers are based on code No.
4512 102/103 xxxxx.
S Set the gain factor for AEC techniques with jumper
EZ150:W4:
-- Factor 1 ==> W4 in position 3 = default
For screen/film combination with at least one
system speed ≤ 200.
W1do not change!
PCB layout print different from figure.
195H96
-- Factor 4 ==> W4 in position 1
For screen/film combinations with all system
speeds > 200.
S The software programming has to be set
accordingly.
The rest of the generator hardware has been
properly programmed at the factory.
If required, refer to section 5: PROGRAMMINGS.
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6.Switch--ON of the generator
S Switch ON the fuses present at the clinic.
S Switch ON automatic circuit-breakers ENF1, ENF2 and ENF3.
The yellow LED on EN100 power ON circuit must be illuminated.
OPTIMUS R/FINSTALLATION
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OPTIMUS R/F
INSTALLATION
7.Installation software XRGSCOPE
7.1.PC and generator settings to avoid problems during up/downloading of CU
complete files
Optimus R/F release 2.x and 3.x CMOS data are up/downloaded in one string without handshake.
Any kind of interruption can cause the loading process to fail.
Problems occur mainly during the download to the PC.
A download file which is not complete cannot be used as a safety backup file.
7.1.1. Preparation of the service PC to guarantee a safe loading process
Start XRGSCOPE always from DOS if possible.
When using any WINDOWS version:
S Switch OFF all screensavers.
S Do not run other programs.
S Do not insert any CD in the drive.
Any kind of power management of the PC hardware (BIOS) as well as the windows power management should
be switched OFF.
If connected to mains power some of these might be automatically OFF.
7.1.2. Preparation of the generator
Preparation of generators without a CAN
interface:
S Switch ON the generator.
The loading process can be started once relay ENK1 has been energized.
OPTIMUS R/F(c/02.1)
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2--27
Preparation of generators which are connected via a CAN interface:
-- BuckyDiagnost TH and TH2
-- DigitalDiagnost
-- Thoravision
-- EasyDiagnost with Bucky unit
S Switch OFF the generator.
S Disconnect the following plugs:
SystemConnector
OPTIMUS R/FINSTALLATION
EZX23
signal bus
EZX42 or
EZX42--1
system CAN
EZX43 or
EZX43--1
system CAN
BukyDiagnost TH / TH2XX
DigitalDiagnostXXX
ThoravisionXXX
EasyDiagnost with Bucky unitXXX
S Switch ON the generator.
Note
The download procedure must not be started before relay ENK1 has been energized at least 2 minutes after
the generator has been switched ON.
Note
In case of mailing CU complete download files or any other xxx.TDL files use a zipped file format.
These files are ASCII files which might be destroyed while being mailed.
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ALL RIGHTS RESERVED
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OPTIMUS_RF_2_c021
OPTIMUS R/F
7.2.Installation procedure
S Provide the service PC with the hardware key and switch it ON.
The hardware key provides access to special program settings and to menu ”Faultfind”.
Standard programming is possible without a hardware key.
S Connect the PC to X5 on EZ139 CENTRAL UNIT CU via a serial data cable:
(A 5m long data cable can be ordered via 12NC: 4512 130 56931)
INSTALLATION
PC: COM1
(9-pole, female)(25-pole, female)
Generator: EZ139X5
120
6
*2
*3
4
2*
3*
6
8
*5
7
8
7*
5
4
* = sufficient for communication RAD / RF
S Insert the floppy disks containing the self-unpacking exe-files of the firmware in the disk drive of the PC:
-- OMA :4512 116 022xx
-- OMB :4512 116 023xx
For unpacking on the harddisk of the PC about 5MB are needed.
S Generate a directory e.g. [C:\OPT_R_35] on the PC by typing <md C:\OPT_R_35> or use WIN commands.
S Copy the firmware from both floppy disks to the PC into the same directory C:\OPT_R_35 by typing
<copy A:\*.* C:\OPT_R_35> or use WIN commands.
S Start unpacking the programs by typing <OMAxxxxx.exe> and <OMBxxxxx.exe> or doubleclick on
<*.exe> --files.
The programs unpack all files needed for the update of the firmware and the newest service tools.
S After unpacking [OMAxxxxx.exe] and [OMBxxxxx.exe] can be deleted on the harddisk by typing
<del OMAxxxxx.exe> and <del OMBxxxxx.exe>.
S For the current contents of [OMA/OMBxxxxx.exe] read [OMA/OMBxxxxx.txt] on the floppy disks.
S For a new installation of the generator firmware see section 4 REPLACEMENT, chapter 3
”Exchange of firmware ...”.
S Call the installation program by typing <xrgscope> or <xrgscope lcd> for PCs with LCD screen.
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2--29
OPTIMUS R/FINSTALLATION
S Start with a XRGSCOPE--screen CUSTOMER.tdl with data which are actually stored in CUSTOMER.tdl. Type
“XRGSCOPE customer”
Whenever data screens like ’error log index’ are saved to a xxx.TDL file (function save <F3> appears in the
bottom line), ‘customer data’ being saved in the CUSTOMER.tdl file are attached to the saved data screen. It
helps to separate saved screen files of different sites, customers or rooms in the same hospital.
Site data must be stored in CUSTOMER.tdl file, only data of this file are attached to the saved screens. One
can save site specific customer data in self-made files using <F3>.To recall site data use the load <F4> function.
Procedure:
Either the CUSTOMER.tdl screen is open or open the ‘Customer Data’ screen. Push <F4> and select a site data
file. The old data screen comes up. Now save this screen with <F3> typing in CUSTOMER as file name.
-- Customer
-- City /
Country:
--
-- Generator
-- Generator Serial
-- Generator 12
Memo1:
--
Memo2:
--
Memo3:
--
Name:
State:
Location:
Number:
NC:
After <ESC> the following menu line appears:
FileOPTIMUSSelect UnitOptionsHelp
S Select ”OPTIMUS”.
The following menu line appears:
ProgramAdjustAcceptFaultfindQuit
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OPTIMUS_RF_2_c021
OPTIMUS R/F
INSTALLATION
General information:
-- Button <F1><help>Call help / cancel help.
-- Button <F2><transmit>Store screen contents / data set in the generator ==> transmit to generator.
-- Button <F3><save>Store data screen on disk.
For an open data screen the path desired can be selected.
-- Button <F4><load>Load data set from disk.The desired path can be selected.
-- Button <ESC>Commands one step back. Can be used repeatedly.
-- Fields with ↓Select the possible range of values by pushing <RETURN>.
The data are specified by the generator as fixed values.
-- Fields with [...]Input of data via the keyboard.
Error numbers which appear at the beginning of the programming procedure must be erased from the screen
by pushing the <RETURN> key.
Current data files, for instance, for online help, tube types, APR programming are available in the PHILIPS--Intranet.
Use path: http://technet.best.ms.philips.com/ and pull down menu as shown below.
PMS TechNet
http://technet.best.ms.philips.com/
PHILIPS
Insight Medical Systems
...
...
...
...
...
...
XRAY GENERATORS...
...
...
...
...
...
DOWNLOAD
412H01
If the installation program is called with <xrgscope ?> the possible starting parameters for the service program
are listed.
OPTIMUS R/F(c/02.1)
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OPTIMUS R/FINSTALLATION
8.Setting-to-work overview
Note
The programming of a generator must take place in the sequence specified below.
As long as no tube or RGDV has been assigned there is no display at all on the desk except “PHILIPS OPTIMUS”.
8.1.Configuration
8.2.Registration devices
S RESET the generator
8.3.Tube adjustment
S RESET the generator
8.4.Dose rate control
S RESET the generator
8.5.Application limits
S RESET the generator
8.6.Human interface
S RESET the generator
8.7.Option: T omo Density Control TDC
8.8.Option: VARIOFOCUS
8.9.Option: Area Dose Calculator
8.10. Acceptance test
8.11. Interlock facility for APR modification
8.12. Backup of all configuration data
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OPTIMUS R/F
8.1.Configuration
S Switch the generator ON.
8.1.1. Date and time
S Select menu:
PROGRAM/ DATE AND TIME
S Enter the respective local data.
8.1.2. Mains data
S Select menu:
PROGRAM/ MAINS DATA
S Select the nominal value of the mains voltage U.
Range:380V , 400V, 440V, 480V
Default: 400V
If 460V is present program 480V.
If 415V is present program 400V.
INSTALLATION
S Enter the maximum internal mains resistance R
.
i
Range:0 ... 500mΩ
Depending on the internal mains resistance and the mains voltage the generator calculates the maximum possible
output.
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8.1.3. Tubes
Note
Generators which are connected by a CAN interface have to be prepared as described below.
OPTIMUS R/FINSTALLATION
Preparation
for:
-- BuckyDiagnost TH and TH2
-- DigitalDiagnost
-- Thoravision
-- EasyDiagnost with Bucky unit
S Disconnect the following plugs:
SystemConnector
BukyDiagnost TH / TH2XX
DigitalDiagnostXXX
ThoravisionXXX
EasyDiagnost with Bucky unitXXX
S Switch ON the generator.
EZX23
signal bus
EZX42 or
EZX42--1
system CAN
EZX43 or
EZX43--1
system CAN
Note
The download procedure must not be started before relay ENK1 has been energized at least 2 minutes after the
generator has been switched ON.
Do not care if the generator is not programmed yet.
8.1.3.1. Tube data set
S Select menu:
PROGRAM/ TUBES/TUBE 1 ... 3/ TUBE 1 ... 3 DATA SET
S Start the displayed file TUBExxx.tdl with <RETURN>.
All the permitted combinations of tube type and housing type are listed in a window.
S Select the respective combination of tube type and housing type from the list and push <RETURN>.
S RESET the generator.
Then the data which have been configured up to now are read by the processor when the system is started.
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OPTIMUS R/F
8.1.3.2. Tube speed selection
Depending on the type of tube loaded the anode speed is automatically programmed.
Caution!
Wrong programming can cause tube problems.
S Program the maximum working voltage which is indicated on the data label:
Max. tube voltage limit
Range:40 ... 150kV
Default: 150kV
Adaptation of the tube takes place only up to this limit.
Note
If older tubes are to be operated on this generator, it is urgently recommended that the max. kV used in practical
operation so far be specified instead of the theoretically possible value.
The max. kV value should be determined during the conditioning procedure as described in chapter 8.3.1.
After adaptation of a tube the upper kV limit is displayed for each focus of each tube under:
Adapted to [kV]: e.g. 125kV
All the other limit programmings are performed by the generator automatically and do not usually have to be
observed.
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8.1.3.4. Capacitance of tube connection
S
inglel
th[m]
S Select menu:
PROGRAM/ TUBES/ CAPACITANCE TUBE CONNECTOR
Range: 2.000 ... 10.000nF
The total capacitance for each tube connected is indicated:
OPTIMUS R/FINSTALLATION
C=
½ (C
H.V. generator+CH.V. cable
)
= 4.550nFDefault for H.V. generator + 20m H.V. cable (155pF/m)
xLCc= specific cable capacitance in [pF/m]
C
c
C [nF] = 3 + ------ ------ -- --L = single cable length in [m]
2000
Capacitance tube connection [nF]
eng
For 155pF/m cableFor 200pF/m cable
144.0854.400
164.2404.600
184.3954.800
204.5505.000
224.7055.200
244.860--
265.015--
285.170--
305.325--
The high-voltage cables type 9806 402 6xx02 currently being supplied have a capacitance of 155pF/m.
OPTIMUS R/F(c/02.1)2--36
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OPTIMUS R/F
8.1.3.5. Tube operating modes
S Select menu:
PROGRAM/ TUBES/ TUBE OPERATING MODE
-- Intermediate boost:
Select ...Disable =During preparation the rated filament current is applied (default).
Enable=During preparation a reduced filament current is applied.
After the release of exposure boosting takes place for a short time before the
exposure is released. Effective with tube currents > 80% of max. value.
-- Rotation prolongation after PREP:
Select ...Disable =The tube is braked as soon as preparation has been cancelled.
Enable=After cancellation of preparation the tube is only braked after 30s. Within this
time preparation can be repeated as often as necessary.
Recommended for paediatrics and casualty rooms.
The enable mode works with high speed rotor control unit only.
INSTALLATION
8.1.3.6. Disable tube
For correction of the configuration.
S Select menu:
PROGRAM/ TUBES/ DISABLE TUBE
When the tube is disabled the above stored data set of the tube is erased. To enable the tube the data set has to
be loaded again.
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OPTIMUS R/FINSTALLATION
8.2.Registration devices
8.2.1. Data set A ... B
S Select menu:
PROGRAM/ REGISTRATION DEVICES/ RGDV 1 ... 8/ DATA SET A ... B
S Program the data set A and B of RGDV 1 ... 8 for all exam. / aux. units desired.
Data set A
Room:Room number of the exam. / aux. unit for room decade
(radiation warning display and door contact).
Tube:Tube assignment for the exam. / aux. unit.
Release circuit number:Number of the release decade of the release circuit adaptation unit
WA, WB programmed (e.g.: 1 for X1 etc., see Z1-1.2).
Exposure switch type:Single step=Exposure request instantly with preparation
1)
Double step =Individual preparation request and exposure request
Bucky format density correction:Density correction in steps of 6%. Range: --8 ... +8
Correction during collimation, input at WAX11/12 pin 1--2 or WBX11
pin 1--2, side fields active when contact closed (<24x24cm), center
field only when opened.
With GALILEO or NICOL collimator via Bucky controller with CAN.
Cone density correction:Density correction in steps of 6%. Range: --8 ... +8
Input at WBX13 pin 4--5.
Valid only when the assigned cone contact is closed.
1) For this function the WA/WB option is required.
Ignore for RGDV with CAN: BuckyDiagnost TH/TH2, Thoravision, DigitalDiagnost,
EasyDiagnost with Bucky unit.
2) All RGDV with CAN: BuckyDiagnost TH/TH2, Thoravision, DigitalDiagnost, EasyDiagnost with Bucky unit.
OPTIMUS R/F(c/02.1)2--38
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OPTIMUS R/F
Data set A continued:
Dose measurement sensor type:
Bucky AMPLIMAT:Input via EZX21/22/31/32/41, measuring field selection oncontrol desk possible.
Scopo AMPLIMAT:Input via EZX21/22/31/32/41,only center field displayed on the control desk.
It has to be programmed in case of a “Junior Diagnost” or “Extremities”
measuring chamber to prevent from side field selection.
Photo sensor:Input via EZX61, if “none” is programmed at “dose measurement input”, in this
case the exposure ON signal has to be connected to the central part via
signal bus.
Photo sensor / AMPLIMAT input:Photo sensor input via EZX21/22/31/32/41.
Only EZX41 supports DSI exposure series with non AEC techniques.
Exposure series /
Tomo movement:NO=Instant brake after exposure end.
NO=To be programmed for tomo systems via system CAN.
BuckyDiagnost TH/TH2, DigitalDiagnost,
EasyDiagnost with Bucky unit
YES=More than one exposure possible with one PREP.
-- For tomo units released by 1WA/2WA, PREP must be kept
active at the release decade to get the tomo stand back
to the start position.
-- DSI or multiple exposures for SCOPO.
INSTALLATION
Release delay (automatic techniques): enable =Must be enabled for all AEC techniques.
Automatically disabled if non AEC techniques
selected.
disable =Not to be programmed.
Keep release delay always on enable
.
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Data set A continued:
Mounted radiographical controller:
OPTIMUS R/FINSTALLATION
none=Must
be programmed if any release circuit adaptation
unit 1WA, 2WA, 1WB is assigned to this RGDV.
No CAN controlled system is assigned to this RGDV .
Bucky controller 1 / DigitalDiagnost=CAN controlled system
-- BuckyDiagnost TH/TH2, DigitalDiagnost
RGDV1 ... 4 only
-- EasyDiagnost with Bucky controller
RGDV5 ... 8 only
Bucky controller 2=No function yet.
Thoravision=Can controlled system
-- Thoravision
RGDV1 only
Release circuit adaptation unit:Assignment of the release unit 1WA, 2WA, 1WB
none=free cassette or in case of a CAN driven examination unit
Mounted tomo extension:none=no tomo unit installed
1WA=(1)WAX21 valid as tomography time input
2WA=2WAX21 valid as tomography time input
Medium II format kV corr. (dose equiv. steps):Range = 0...8 dose equiv. + kV correction steps
Medium II format density corr. (--6% steps):Range = 0...8 --6% density steps
Medium II format mAs corr. (--6% steps):Range = 0...8 --6% mAs steps
Small II format kV corr. (dose equiv. steps):Range = 0...8 dose equiv. + kV correction steps
Small II format density corr. (--6% steps):Range = 0...8 --6% density steps
Small II format mAs corr. (--6% steps):Range = 0...8 --6% mAs steps
An RGDV must not be assigned to a ”mounted radiographical controller” and a ”release circuit adaptation unit”
together.
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OPTIMUS R/F
Data Set B (underlined items = default)
Used for tomo:NO
YES=With YES a definition of the tomography time is expected from
the examination unit, e.g. via WAX21 or from a Bucky controller
with tomo.
Used for fluoroscopy:NO=Ok
YES=Fluoro unit
CT add on:NO=Ok (No function available yet)
Disable time override:NO
YES=Disables time override function at desk.
Automatically disabled with ”Used for tomo = YES”.
There must be no programming here if the diagnostic unit is connected via the CAN interface:
BuckyDiagnost TH/TH2, Thoravision, DigitalDiagnost, EasyDiagnost with Bucky unit.
S Assign the format and ready contacts of the decade connector WAX11 or WAX12 to a Bucky or tomography
RGDV . Refer to Z1-15.1.
-- Decade Bucky 1 (X11)See following table.
-- Decade Bucky 2 (X12)Program the functions as for the first Bucky decade.
-- Tomo Time0.1 ... 6000ms for each trajectory.
One tomography unit can be programmed for each device interface.
Decade Bucky 1 ... 2
Tomo mode switch:disable =Input ”tomo mode” is not activated. Remote changeover
Bucky / tomography not possible via the examination unit.
enable =Input ”tomo mode” is activated.
Remote changeover Bucky / tomography possible.
Bucky and tomo RGDV must be defined.
Bucky RGDV -- switch related: none/ RGDV 1 ... 8
The inputs ”format contacts” and ”Bucky ready” are activated.
When the tomo mode switch is enabled, this RGDV is activated when the
remote tomo mode switch is open.
Bucky RGDV:none/RGDV 1 ... 8
The inputs ”format contacts” and ”Bucky ready” can be assigned to any
RGDV button.
The inputs ”format contacts” and ”tomo ready” are activated.
Tomo RGDV -- switch related: none/ RGDV 1 ... 8
When the tomo mode switch is enabled, this RGDV is activated when the
remote tomo mode switch is closed.
S Fill in the program settings in table “RGDV programming” 2Z--2.0 at the end of this section.
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INSTALLATION
8.2.3. Examples for RGDV programming
Example No. SystemRefer drawing
-- Diagnost 76: Exposure Scopo / BV--DSI
1
-- Bucky wall stand
2Z--2.1
-- Free cassette
2
-- BuckyDiagnost TH with Bucky controller
-- Diagnost 76: Exposure Scopo / BV--DSI
2Z--2.2
-- Diagnost 96: Cassette + DSI with / without tomo
3
-- Bucky wall stand
2Z--2.3
-- Free cassette
-- HDH with / without tomo time input
4
-- Bucky wall stand
2Z--2.4
-- Free cassette
-- BuckyDiagnost TH/TH2, Digital Diagnost with Bucky controller and
5
CAN interface
-- Bucky wall stand
2Z--2.5
-- Free cassette
-- BuckyDiagnost TS
6
-- Bucky wall stand
2Z--2.6
-- Free cassette
-- EasyDiagnost: Exposure Scopo / BV--DSI
7
-- CAN controlled CS Bucky unit
-- Bucky wall stand
2Z--2.7
-- Free cassette
-- Bucky TH any version with Bucky controller
8
-- Generator equipped with or without decade adaptation unit WA
2Z--2.8
-- Auxiliary for MCS (only) = RGDV4 in combination with free cassette
10
-- Bucky TH any version
9
-- Generator equipped with or without decade adaptation unit WA
2Z--2.9
-- Auxiliary for MCS (only) = RGDV5 ... 8
-- Bucky TH any version
-- Generator equipped with or without decade adaptation unit WA
-- Auxiliary for Trauma Diagnost (only) = RGDV5 ... 8
2Z--2.10
-- Auxiliaries RGDV1 ... 4 must not be used with a Bucky TH system via
CAN
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8.3.Tube adjustment
8.3.1. Tube conditioning
Warning!
Radiation is released during the conditioning procedure!
8.3.1.1. Preconditions / Programmings
S Switch OFF the generator.
Preparation of generators which are connected via a CAN interface:
-- BuckyDiagnost TH and TH2
-- DigitalDiagnost
-- Thoravision
-- EasyDiagnost with Bucky unit
OPTIMUS R/FINSTALLATION
S Switch OFF the generator.
S Disconnect the following plugs:
SystemConnector
EZX23
signal bus
EZX42 or
EZX42--1
system CAN
EZX43 or
EZX43--1
system CAN
BukyDiagnost TH / TH2XX
DigitalDiagnostXXX
ThoravisionXXX
EasyDiagnost with Bucky unitXXX
S Switch ON the generator.
Note
The programming procedure must not be started before relay ENK1 has been energized at least 2 minutes after
the generator has been switched ON.
S Perform the following programmings temporarily for each tube connected to one of the assigned
RGDV = Free cassette
Select menu XRGSCOPE:
PROGRAM/ REGISTRATION DEVICES/ RGDV#/ DATA SET A
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entriesin2Z--
2.x
ProgrammingTemporarilyOriginal Tube
Enable handswitch ......YES
Syncmaster presentNO
Exposure switch typeDouble Step
Verify the customized
entries in 2Z--2.x
Exposure series / Tomo ......YES
Mounted radiographic ......NONE
S RESET the generator.
S Select appropriate programmed RGDV = “Free cassette” for the tube to be conditioned.
8.3.1.2. Procedure
S Select large focus only.
INSTALLATION
Note
The generator must be in the READY state.
S Run reconditioning procedure for an adapted tube, refer to following table, left column TUBE ADAPTED.
or
S Run conditioning procedure for a new or non--adapted tube, refer to following table right column TUBE NOT
ADAPTED.
S It is recommended that the high tension be monitored during conditioning.
Connect the scope:
Channel1:kV AV HT at EZ130 X3 (1V/div), scale: 20kV/V
Trigger external:CTRL_X_C/ at backpanel EZ X74, negative slope
Time base:2ms/div
S In case of problems like tube arcing see the following flowchart EXPOSURE SEQUENCE as an example.
The flowchart applies for applicable kV range only, e. g.:
109kV is the max. kV value for normal application, perform just up to next higher kV step = 117kV.
Note
Refer to flowchart EXPOSURE SEQUENCE.
If the tube arcs at a certain kV value, switch another 3 exposures with same parameters and 10s pause
between subsequent exposures. In case of success (no arcing anymore) continue with next kV step of the
following table.
If the last exposure still arcs go one kV step back and follow normal procedure. If this routine has been
performed three times without improvement:==>
Replace the tube!
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OPTIMUS R/FINSTALLATION
Exposure parameters for conditioning
Tube adapted# exposuresTube not adapted
kVmAmskVmAs
801050<1>800.5
8010500<1>805
80200250<1>8050
10 seconds pause10 seconds pause
80max. mA100<1>80100
1 minute pause1 minute pause
901050<1>900.5
9010500<1>905
90200250<1>9050
10 seconds pause10 seconds pause
90max. mA100<1>90100
1 minute pause1 minute pause
1001050<1>1000.5
10010500<1>1005
100200250<1>10050
10 seconds pause10 seconds pause
100max. mA100<1>100100
1 minute pause1 minute pause
1101050<1>1100.5
11010500<1>1105
110200250<1>11050
10 seconds pause10 seconds pause
110max. mA100<1>110100
1 minute pause1 minute pause
1201050<1>1200.5
12010500<1>1205
120200250<1>12050
10 seconds pause10 seconds pause
120max. mA100<1>120100
1 minute pause1 minute pause
1301050<1>1300.5
13010500<1>1305
130200250<1>13050
10 seconds pause10 seconds pause
130max. mA100<1>130100
1 minute pause1 minute pause
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OPTIMUS R/F
INSTALLATION
Exposure parameters for conditioning
Tube adapted# exposures
Tube not adapted
kVmAmskVmAs
1401050<1>1400.5
14010500<1>1405
140200250<1>14050
10 seconds pause10 seconds pause
140max. mA100<1>140100
1 minute pause1 minute pause
1451050<1>1450.5
14510500<1>1455
145200250<1>14550
10 seconds pause10 seconds pause
145max. mA100<1>145100
1 minute pause1 minute pause
1481050<1>1480.5
14810500<1>1485
148200250<1>14850
10 seconds pause10 seconds pause
148max. mA100<1>148100
1 minute pause1 minute pause
1501050<1>1500.5
15010500<1>1505
150200250<1>15050
10 seconds pause10 seconds pause
150max. mA100<1>150100
1 minute pause1 minute pause
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kV step 1
80kV
kV step n
OPTIMUS R/FINSTALLATION
Exposure sequence
kV step n+1
kV step n+2
= kV limit
no
exposure
with arcing
3 exposures
with same
parameters.
Wait 10s
after each
exposure!
stillarcing?
yes
max. 3 loops
END
394H00
Note
If a tube arcs at any kV value which is not required for application the max. kV (e.g.117kV) program this new limit
value by XRGSCOPE:
PROGRAM/ TUBES/ TUBE LIMITS/ MAX. TUBE VOLTAGE LIMIT [kV]/ [117]
As the limit value decreases for this reason, a following re--adaptation procedure sets the field
ADAPTED TO [kV] to this value as well.
S Set RGDV programming to original status if no adaptation procedure has to be executed.
S RESET the generator.
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OPTIMUS R/F
8.3.2. Tube adaptation
Warning!
Radiation is released during the adaptation procedure!
8.3.2.1. General information
Tube adaptation is an automatic process which includes:
1. The measurement of the mA offset value that is caused by:
-- the kV measuring circuit
-- the emission current feedback circuit (VCO)
2. The measurement of the individual standby filament current (based on 100µA).
3. The emission current characteristic as f (kV, filament current).
INSTALLATION
4. The dynamic behavior (positive and negative boost adaptation) where the inertia of the filament with respect
to heating up and cooling down is registered.
For more information refer to section 3: FAULT FINDING.
Note
In case of problems check the symptom / solution list at the end of this adjustment chapter. Repeat the adaptation
for this particular focus.
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8.3.2.2. Preconditions / Programmings
S Switch OFF the generator.
OPTIMUS R/FINSTALLATION
Preparation of generators which are connected via a CAN
-- BuckyDiagnost TH and TH2
-- DigitalDiagnost
-- Thoravision
-- EasyDiagnost with Bucky unit
S Switch OFF the generator.
S Disconnect the following plugs:
SystemConnector
EZX23
signal bus
BukyDiagnost TH / TH2XX
DigitalDiagnostXXX
ThoravisionXXX
EasyDiagnost with Bucky unitXXX
interface:
EZX42 or
EZX42--1
system CAN
EZX43 or
EZX43--1
system CAN
S Switch ON the generator.
Note
The adaption procedure must not be started before relay ENK1 has been energized at least 2 minutes after the
generator has been switched ON.
S The tube must be conditioned as described in chapter 8.3.1 “Tube conditioning”.
S Check the upper kV limit
Select menu XRGSCOPE:
PROGRAM/ TUBES/ TUBE LIMITS/ MAX. TUBE VOLTAGE LIMIT [kV]
The programmed value should match the nominal value of the tube connected or in case of older tubes the upper
kV limit should be set to the max. application kV .
Once an adaptation is completed the new limit value indicates as ADAPTED TO [kV].
S Perform the following programmings temporarily for each tube connected to one of the assigned
RGDV = Free cassette
Select menu XRGSCOPE:
PROGRAM/ REGISTRATION DEVICES/ RGDV#/ DATA SET A
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OPTIMUS R/F
entriesin2Z--
2.x
ProgrammingTemporarilyOriginal Tube
Enable handswitch ......YES
Syncmaster presentNO
Exposure switch typeDouble Step
Verify the customized
entries in 2Z--2.x
Exposure series / Tomo ......YES
Mounted radiographic ......NONE
INSTALLATION
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OPTIMUS R/FINSTALLATION
8.3.2.3. Procedure
S RESET the generator.
S It is recommended that the high tension be monitored during adaptation.
Connect the scope:
Channel1:kV AV HT at EZ130 X3 (1V/div), scale: 20kV/V
Trigger external:CTRL_X_C/ at backpanel EZ X74, negative slope
Time base:2ms/div
S Select the RGDV = Free cassette for the tube to be adapted.
S Select menu XRGSCOPE:
OPTIMUS XRG/ ADJUST/ TUBE ADAPTATION
S Select the tube and focus to be adapted, start with small focus!
Note
To avoid any malfunction make sure that READY is displayed on the desk before transmitting data by pushing
<F2>:
READY state disappears, ADAP is displayed on the desk, WAITING is displayed on the PC screen.
Wait until the generator turns back to READY state.
S Start the adaptation process by pushing the handswitch in PREP and EXP position continuously.
The generator switches about 125 exposures for each focus. The radiation sign at the desk indicates exposures
but there is no beep at the end of each exposure.
The actual kV parameters are displayed during adaptation.
The generator carries out the adaptation automatically. The procedure for one focus is completed when the desk
indication changes from ADAP to TEST. The WAITING message disappears from the PC screen together with
a PC beep, followed by the screen: BEFORE CONTINUING THE GENERATOR MUST BE RESET.
S RESET the generator.
S Run the adaptation for each focus (small and large) and tube.
Note
As there is no tube type with a physical third (middle) focus yet, the third focus can not be adapted.
VARIOFOCUS values are calculated by adapted small and large focus. APR programs using VARIOFOCUS
can only be selected until small and large focus are both adapted.
S Set RGDV(s) programming to original status according to table “RGDV programming” 2Z--2.x in the end of this
chapter.
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OPTIMUS R/F
8.3.3. Final tube adjustment work
1. BuckyDiagnost TH with CAN interface, DigitalDiagnost, Thoravision:
S Switch OFF the generator.
S Reestablish signal bus connector EZX23.
S Reestablish CAN connectors EZX42--1 and EZX43--1.
S Switch ON the generator.
2. All other systems:
S Reset the generator.
INSTALLATION
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OPTIMUS R/FINSTALLATION
8.3.4. Problems during adaptation -- Symptoms and solutions
1. A warning cannot be displayed on the control desk, the W AITING screen on the PC is flickering instead during
this event and logged in the error log index.
2. If the tube has already been at a high temperature level (but the tube load indication still indicates green or
green--yellow for 100% power) it might happen that the load indication changes straight to red and the adaptation
is on hold. WAITING is flickering on the PC.
Solution: Keep the handswitch pushed, once the temperature is down adaptation continues automatically.
Note
An increment of one of the temperature levels inhibits the 100% power condition. This event is always logged
as warning 00BV in the error log index.
3. An error message just flashes for a very short moment and is instantly covered by ADAP on the desk afterwards.
WAITING is flickering on the PC.
4. All buttons at the control desk including the RESET button are inactive during adaptation.
The only way to RESET an error is to release the PREP switch which causes an interrupt similar to the RESET
command.
5. After letting go of the PREP switch wait until the desk indicates READY. If READY does not appear at least after
20 seconds run a warmstart of the generator by pushing the RESET button on CU EZ139.
6. If adaptation seems to do nothing for more than 30 seconds let go of the PREP switch. Wait until the desk
indicates READY. If READY does not appear at least after 20 seconds run a warmstart of the generator by
pushing the RESET button on CU EZ139.
7. If a constant READY indication appears for more than 2 seconds while PREP and EXP is activated by the
handswitch during adaptation let go of the handswitch.
Wait until the desk indicates READY. If READY does not appear at least after 20 seconds run a warmstart of
the generator by pushing the RESET button on CU EZ139.
8. If adaptation does not carry on with or without READY indication check whether one of the function units
indicates a FATAL error by turning on the red LED. Let go of the handswitch and run a warmstart of the generator
by pushing the RESET button on CU EZ139.
9. If adaptation has been interrupted by a generator warmstart check the error log index before restarting
adaptation:
kV errors 02WG and/or 02WH indicate tube arcing. Run conditioning of the tube as described in chapter 8.3.1
and/or reduce the max. kV value to the required application value.
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OPTIMUS R/F
8.4.Dose rate control
8.4.1. AMPLIMAT sensitivity
S Select menu:
PROGRAM/ DOSE RATE CONTROL AMPLIMAT/ SENSITIVITY
S Depending on HW programming of jumper EZ150:W4. W4 programs sensitivity accordingly:
high = × 4 = EZ150:W4 in position 1
===> All screen/film combinations with a system speed > 200.
low= × 1 = EZ150:W4 in position 3
===> At least one screen/film combination with a system speed ≤ 200.
8.4.2. Screen/film combinations
5 screen/film combinations can be programmed for each of the 5 measuring chambers:
S Select menu:
PROGRAM/ DOSE RATE CONTROL/ AMPLIMAT CHAMBER 1 ... 5/ DATA SET 1 ... 5
INSTALLATION
The number of the chamber corresponds to the specified unit number of the dose measuring unit.
The choice between automatic and manual DRC processing is possible when an authorized hardware key is
inserted in the PC.
Automatic is selected as default and must be used for the initial programming.
Data sets of adjacent rooms can be copied but have to be aligned afterwards.
Access manual DRC processing by pushing the <ESC> key.
The manual mode is suitable for:
-- Copying complete programming to other measuring chambers.
-- Setting the basic density.
-- Changing the desk-displayed names of the programmed screen/film combinations.
-- Creating backups of the DRC programmings.
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OPTIMUS R/FINSTALLATION
8.4.2.1. Automatic DRC processing
S Select the desired data from the files offered for the following programming steps.
The files are part of the installation software.
-- Select the programming field with the cursor and enter <RETURN>.
-- Enter the desired file from the list offered.
-- Select the desired data as required.
FILM:File FILM.TDLFilm types according to description of the
manufacturer.
File FILM_BL/ _GR/ _UV.TDLGeneral classification of the film according
to color, sensitivity S and
RLF compensation.
SCREEN:File SCREEN.TDLScreen types according to description of
the manufacturer.
File LUMAT_LG.TDL-- Screen types according to luminous
matter.
-- Imaging plates.
CHAMBER:File CHAMBER.TDLDifferent types of measuring chambers.
CASSETTE:File CASSETTE.TDLDifferent types of cassettes.
SYSTEM CORRECTION:File SYSCOR.TDLSelect no corr. (ISO 9236-1)
CORRECTION FACTOR:Default 1.00Correction factor for switch--OFF dose.
Based on the combination of the components entered, the processor calculates the switch--OFF dose, kV
correction and RLF compensation. The name for the screen/film combination, e.g. ”B400”, is taken from the
“screen” default data set.
Dose Rate Control setting Optimus for Computed Radiography (PCR or other imaging
plates)
The following example is for a 400 speed system, determined by the selection of the LG06 400 speed type from
file LUMAT_LG.TDL (luminous groups).
Ignore the violet screen colour of LG06, the data set just requires its kV characteristic.
FILM:File FILM.TDLX--CONSTANT RLF=1
SCREEN:File LUMAT_LG.TDLLG06 S400 vi
CHAMBER:File CHAMBER.TDLthe installed chamber type
CASSETTE:File CASSETTE.TDLnormal cassette (def)
SYSTEM CORRECTION:File SYSCOR.TDLno corr. (ISO9236--1)
CORRECTION FACTOR:1.00
Note
Film, screen, etc. data selected are not directly stored in the generator.
It is recommended that they be entered in the table ”Data sets of chambers” 2Z--4 at the end of this section.
S RESET the generator.
Color and sensitivity class of the screen/film combination are displayed on the desk, e.g.: “B400”.
Other screen/film combinations (data set 1 ... 5) for the chamber can be selected by the buttons.
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OPTIMUS R/F
8.4.2.2. Manual DRC processing
The current data set of the screen/film combination is displayed.
* Abbreviation:Abbreviation for the screen/film combination.
Example: B400 = blue, speedclass 400.
Dose Request Chamber:Senstitivity of the measuring chamber type in [mGy/V].
* Dose of FSC:Switch--OFF dose of the screen/film combination in [mGy].
Linear ratio with respect to the film density.
kV70-Char. U_0 ... 9:Checkpoints for kV-dependent density correction.
kV70-Char. Drel_0 ... 9:Relative correction value for the dose.
RLF t_0 ... 9:Checkpoints for time-dependent density correction.
(RLF = Reciprocity Law Failure).
RLF Drel_0 ... 9:Relative correction value for the dose.
* = Only these fields may be changed according to the system requirements.
All other fields must not be changed.
INSTALLATION
S If required, change the data and the abbreviation name.
Usually no value except the basic density ”Dose of FSC” must be changed (see next page).
S Transmit the data set with <F2>.
S RESET the generator.
The SAVE <F3> and LOAD <F4> functions of XRGSCOPE permit straightforward copying of the measuring
chamber programmings.
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8.4.2.3. Density correction for AEC technique (option)
Basic density per screen/film combination:
A hardware key is required at the PC for direct access to the switch--OFF dose.
S Make a test exposure for each screen/film combination.
To do so, set the density correction = 0.
S Determine the density of the test exposures.
S Select menu:
PROGRAM/ DOSE RATE CONTROL/ AMPLIMAT/ CHAMBER 1 ... 5/ DATA SET 1 ... 5
S Select manual DRC programming by pushing the <ESC> key.
S Correct the switch--OFF dose = “Dose of FSC” according to formular below:
OPTIMUS R/FINSTALLATION
N e w s w i t c h -- O F F d o s e= -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --xO l d s w i t c h -- O F F d o s e
Desired density
Measured density
S Transmit the data set by pushing the <F2> key.
S Repeat the procedure for each screen/film combination at each chamber.
S RESET the generator.
The switch--OFF dose can be set on the PC even without a hardware key.
To do so, call up the automatic DRC programming, repeat all the selections and change the correction factor for
switch--OFF dose accordingly. Each time this programming is called up all the selections must be repeated.
E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
OPTIMUS R/F(c/02.1)2--58
OPTIMUS_RF_2_c021
OPTIMUS R/F
Donotcareaboutthesecorrectionfactor
s
Thesefield
softhekVdependentcor
rect
i
r
s
mustalwaysbe1.00.
INSTALLATION
8.4.3. Image intensifier (II)
-- II lead time
-- Density voltage correction: Default = 1V
-- Dynamic factors
At auxiliaries which are using DSI tomo with TDC (Tomo Density Control) take care that the following settings are
present to get a linear density voltage of 1V.
PROGRAM/ DOSE RATE CONTROL/ AMPLIMAT/ CHAMBER 5/ DATA SET 1
S Press <ESC> button.
CheckpointCorrection
factor
Abbreviation[def1] ∆
Dose Request Chamber [µGy/V][6.40] ∆
Dose of FSC [µGy][2.14] ∆
kV70--Char. U_0 [kV][40]
kV70--Char. Drel_0[1.00] *
kV70--Char. U_1 [kV][40]
kV70--Char. Drel_1[1.00] *
kV70--Char. U_2 [kV][ 50]
kV70--Char. Drel_2[1.00] *
kV70--Char. U_3 [kV][60]
kV70--Char. Drel_3[1.00] *
kV70--Char. U_4 [kV][70]
kV70--Char. Drel_4[1.00] *
kV70--Char. U_5 [kV][80]
kV70--Char. Drel_5[1.00] *
Remark
∆ Note
.
*Note
on facto
must always be 1.00.
kV70--Char. U_6 [kV][90]
kV70--Char. Drel_6[1.00] *
kV70--Char. U_7 [kV][110]
kV70--Char. Drel_7[1.00] *
kV70--Char. U_8 [kV][130]
kV70--Char. Drel_8[1.00] *
kV70--Char. U_9 [kV][150]
kV70--Char. Drel_9[1.00] *
OPTIMUS R/F(c/02.1)
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E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
2--59
OPTIMUS R/FINSTALLATION
∆
Not
e
CheckpointCorrection
factor
RLF t_0 [ms][0] ∆
RLF Drel_01.000] ∆
RLF t_1 [ms][20] ∆
RLF Drel_1[1.000] ∆
RLF t_2 [ms][60] ∆
RLF Drel_2[1.000] ∆
RLF t_3 [ms][100] ∆
RLF Drel_3[1.000] ∆
RLF t_4 [ms][500] ∆
RLF Drel_4[1.000] ∆
RLF t_5 [ms][1000] ∆
RLF Drel_5[1.000] ∆
RLF t_6 [ms][1500] ∆
RLF Drel_6[1.000] ∆
RLF t_7 [ms][2000] ∆
Remark
Do not care about these RLF correction factors.
RLF Drel_7[1.000] ∆
RLF t_8 [ms][3000] ∆
RLF Drel_8[1.000] ∆
RLF t_9 [ms][4000] ∆
RLF Drel_9[1.000] ∆
OPTIMUS R/F(c/02.1)2--60
E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
OPTIMUS_RF_2_c021
OPTIMUS R/F
INSTALLATION
8.4.4. Fault exposure detection
Fault exposure detection is switched ON as a default for AEC and TDC. If in the initial phase of an exposure too
little dose is measured, the exposure is aborted to protect the patient.
-- Time of control measurement:10% of backup time,
min. 250ms at TDC
-- Dose minimum:4% of set density voltage at AEC,
4 ... 10% at TDC
-- Backup time AEC:Calculated time from 9.5 times mAs of the respective 2-factor technique,
max. 4s
-- Backup time TDC:Exposure time set 0.3 ... 6s
This additional precaution can be switched OFF for both techniques individually in the menu:
PROGRAM/ DOSE RATE CONTROL/ FAULT EXPOSURE DETECTION/ AECORTDC
For details see section “FAUL T FINDING”, chapter “Optimus AEC switch--OFF philosophy”.
This monitoring does not take effect in the following cases, irrespective of programming:
-- Using screen/film combinations with high speed in AEC technique.
-- Exposure time in TDC technique is shorter than 1s.
8.4.5. Continuous fluoroscopy
Factors for continuous fluoroscopy can be modified:
(see also section 4 FAULT FINDING, “Explanation of programming”)
-- scantime TV [ms] := 20.00ms (default) for scantime of the TV system ≤ 20ms (50Hz and 60Hz)
(range = 0 ... 9000W)The maximum output of the tube during continuous fluoroscopy and with the SID
signal prevailing is limited to the programmed wattage.
P_max_EDL [W] is only active if the DRLM (Dose Rate Limiter) signal on 1 WBX12:1
is active (see also Z1--15.2)
For adjustment see section 6 ADJUSTMENTS.
-- TV_pos_limit [V]:= 6.8V (default) Adjustment necessary if the fluoroscopic image does not come up
properly.
(range = +3 ... +7.5V)Seesection6ADJUSTMENTS.
-- TV_neg_limit [V]:= --6.8V (default)
(range = -- 7.5 ... --3V)
OPTIMUS R/F(c/02.1)
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E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
2--61
OPTIMUS R/FINSTALLATION
8.5.Application limits
8.5.1. X--mode limits
Using the menu:
PROGRAM/ APPLICATION LIMITS/ X-MODE LIMITS
Limit values can be defined for all available techniques. Some values look as if they are out of limit which they are
indeed, but there are additional basic limit values programmed in the generator firmware. These are exposure
technique dependent.
As an example the field of the ”Falling Load” technique:
X--ray Mode:AEC falling load kV
Min. Time Limit [ms]:[1.00]
Max. Time Limit [ms]:[60000.00]
Min. Current Time Product Limit [mAs]:[0.001]
Max. Current Time Product Limit [mAs]:[580.000]
Min. Time Limit [ms]: Is always 1ms for all non--AEC (Automatic Exposure Control) techniques.
Exposures with AEC might be switched shorter than 1ms.
Max. Time Limit [ms]: Basic limits are technique dependent and can not be changed or increased:
AEC falling loadkV4000ms
AEC fixed currentkV--mA4000ms
TDC (Tomo Density Control)6000ms
kV--mA--ms16000ms
free techniqueskV--mAs16000ms
kV--mAs--ms16000ms
Min. Current Time Product Limit [mAs]:The smallest mAs -- product is 0.5mAs.
AEC exposures with less than 0.5mAs are possible.
Max. Current Time Product Limit [mAs]: The default mAs -- product is 580mAs for all AEC--techniques.
850mAs is the absolute limit the generator terminates.
Note
Local limits have to be taken into consideration.
E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
OPTIMUS R/F(c/02.1)2--62
OPTIMUS_RF_2_c021
OPTIMUS R/F
8.5.2. Thoravison limits
The kV-dependent mAs limits can be accessed via the menu:
PROGRAM/ APPLICATION LIMITS/ THORAVISION LIMITS
They are activated only in conjunction with an online Thoravision unit.
A change may only be made if instructed to do so by the service center.
Reference files on floppy disk:-- ref_limx.tdlX-ray limits
Reference files on system disk Thoravision: -- TH_LI128.tdl
-- TH_LI64.tdl
-- TH_LI32.tdl = ref_limt.tdl
8.5.3. Overload-dependent limits
-- max. current for continuous fluro [mA]:Range = 3 ... 30mA
-- max current during overload for continuous fluro [mA]:Range = 1 ... 3mA
INSTALLATION
OPTIMUS R/F(c/02.1)
OPTIMUS_RF_2_c021
E 1998 Philips Medical Systems
ALL RIGHTS RESERVED
2--63
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