The letters PACS stand for Programmable Autoclave Control System.
The object of the control system is to produce command s and transmit
these to the sterilizer components enabling for a number of sterilization
processes to be accomplished in accordance with a predicted pattern.
The command signals are generated by the control unit comput er program in combination with measurements of the process paramete r values. The latter consist mainly of times, temperatures and pressures.
Various equipment can be connected to the control unit for programming, monitoring and recording the sterilization processes.
The operator communicates with the control unit via a control p anel or
a standard PC (OPC). The control panel is available in the versions OP1
and OP2, where OP1 is the smallest type and consists of two door operation keys and eight sig nal light diodes onl y.
The OP2 panel has a 102 x 25 mm LCD, six program selector keys, signal lights and up-dow n and right-left keys to display desir ed information in preprogramm ed windows. Programm ing can also be done by
means of the OP2, but this is limited to numeral values. The OP2 panel
is mainly designed for entering operator adjustable parameters.
There are connection ports in the PACS 2000 all owing a maximum of
two OP1s, two OP2s or one of each. Simultaneously with this combination, OPC can be connected , but only on e of all these can be the commanding unit at a time.
All operating panel s are made for monitoring the pro c esses by displaying any set parameter value as well as current values on request. All relevant data associated with a particular process such as batch No.,
operator No., date, etc., may be entered by the operator using OPC.
Documentation of programs, system definitions and process data can be
made by connecting a printer to OPC. A host computer can also be connected direct to the co ntrol unit CPU.
Where the demand requires a measuring an d monito ring system, co mpletely indepen de n t o f t h e control system, a PA CS SUPERVISOR system may be connected. This con tains a CPU, OP2 an d interfaces wi th
the CPU of the sterilizer control unit. The SUPERVISOR measurements are made by its own separate temperature and pressure sensors.
The computer contains a program for automatic calibration of temperature and pressure transducers. Alternatively correction constants, when
known, may be entered manually. Among PACS 2000 test fu nctions
there are facilities for activating analog and digital outputs and monitoring analog and digital inputs. With OPC or OPH, up to 16 service
alarms, flagged as display codes, can be programmed, based either upon
operation tim e in hours or number of ste rilizing c ycles. In bo th cases th e
maximum programmable d igits are 9999. Service a larms are displayed
also by OP2, but this panel will not allow for programming of these.
The hardware of the steri lizer control system contains the operating
panels easily locate in a suitable place. The CPU and po wer pack are
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EXIT Manual
EXIT Manual
1
placed in a separate electrical enclosure, connected to the operating panels.
Description of terms
STERILIZATION means the whole series of treatments to form a process in order to attain total killing of all viable organisms. This is in connection with autoclaves usually made up by air removal, heat treatment
and a drying phase.
STERILIZING means the actual killin g part, th e heat treatmen t, of the
total process.
Analogous to the two expressions above, STERILIZATION TIME
means the durability of the total process from the start until the goods
can be unloaded. PROCESS TIME is equal to sterilization time.
STERILIZING TIME represents that part of the process on ly during
which the programmed STERILIZING TEMPERATURE prevails in
the chamber.
EXIT MANUAL
PARAMETER in this context means the ELEMENTS WHICH
INFLUENCE the sterilization course. Examples of parameters in the
sterilization process are temperature, pressure, time, gas concentration,
etc. The PARAMETER VALUES may be fixed in the program or operator adjustable.
F
-VALUE is a time defined by the equ ation
0
t
T
k1–
t
()
------------------k
2
F
10
=
∫
0
0
×
dt
t =Time in minutes
T(t) =
k
=Constant within the range 0.0 - 150.0 oC. Usually 121.1 oC
1
=Constant withi n the range 0.0 - 99.9 oC. Usually 10.0 oC
k
2
The F
Load temperature at time t
. value is based upon the sterilizing time, required for the temper-
0
ature prevailing in each moment, being recalculated to the base temperature for steam sterilization, 121.1
o
C
The use of F
value is most common in the pharmaceutical field, where
0
often the time control of sterilization processes is based upon this value,
thereby utilizing t he heat appl ied du ring heat ing u p and cooli ng down .
By this method, heat sensitive products do not need to be exposed to
high temperatures for a longer period of time than required in obtaining
a sterile result.
2
OP C
EXIT MANUAL
OP C is a standard IBM compatible PC with DOS and with backup utilities on hard disk and flop py. OP C is intend ed to be used for progra m
development. The menu tree includes menus for loading data on diskette or hard disk. OP C communicates with the PACS 2000 via a standard RS232 serial interface connected as COM1. COM2, if installed,
may be used for connecting a printer or a PROM programmer. In Local
mode it is possible to run the program without any PACS connected.
OP H
OP His identical to OP C with the extension that it can be connected to
a network includ ing more than one PAC S. OP H communicates wi th the
PACS 2000 via a standard RS485 serial interface. OP H is communicating with one PACS at a time.
3
Screen lay-out
EXIT MANUAL
The screen is divided into six wind ows, each one displ aying differe nt
kind of information.
WINDOW 1
F1
PREVHELP
F2
F3
F4F5F6
WINDOW 2
WINDOW 4
WINDOW 5
WINDOW 6
F7
WINDOW 3
F8F9
F10
Window 1shows system date and time
shows connected sterilizer name and n umb er on
OP H
Window 2shows sequence number and symbolic name for the
active PACS prog ra m in on -l i ne mo de a nd pr og ra m
version number in local mode
Window 3shows symbolic name and sub-phase number for the
Window 4shows all menu functions in the menu tree. Active
Window 5describes the active function of the keys F1-F10
Window 6shows menu handling messages for all menus except
Function keys F1-F10
The function of these keys are depending on the menu selected i n the
menu tree and will be shown in fully written out text in a window on the
display close to the appropriate key.
active PACS phase in on-line mode. Shows the text
”LOCAL MODE” when in that mode.
menu headline is displayed in the upper right corner
of the window.
process pictures.
In process pictures the left part of the window is used
for PACS error texts and the right part for PACS
information text s
4
On line / Local mode
OP can operate in two modes, ONLINE mode and LOCAL mode. In
On-line mode the communicat ion link between OP and PACS is activated and the data base in the two units contain i dentical data . In local
mode OP works remote ly without any communi cation with PACS.
Local modes are available in version OPH and OPC.
The OPC / OPH menu tree
Below follows that part of the menu tree which is of use for the operator.
MODE MENU
MAIN MENU
Menu in frame is not available in Local Mode
START PROGRAM
ACTIVATE PROGRAM
EXIT MANUAL
PARAMETER INPUT
BATCH DEFINITION
SYSTEM MODE
Pass word level 1 required
NORMAL PROCESS PICTURE 1
NORMAL PROCESS PICTURE 2
ENLARGED PROCESS PICTURE
PLOT PROCESS PICTURE
Pass word level 2 required
5
The OPC / OPH menu tree
Below follows that part of the menu tree which is of use for the service
man.
MODE MENU
MAIN MENU
EXIT MANUAL
START PROGRAM
ACTIVATE PROGRAM
PARAMETER INPUT
BATCH DEFINITION
SYSTEM MODE
SYSTEM PROGRAMMING
CALENDAR
CALIBRATION
ANALOG INPUT MANUAL CALIBRATION
ANALOG INPUT AUTOMATIC CALIBRATION
ANALOG OUTPUT MANUAL CALIBRATION
SERVICE
ERROR LOG
TEST FUNCTION
TEST ANALOG INPUT
TEST ANALOG OUTPUT
TEST DIGITAL INPUT
TEST DIGITAL OUTP UT
TEST USER FLAG
TEST SYSTEM FLAG
TEST PICTURE
TEST PRINTER
TEST LED
Menu in frame is not available in Local Mode
NORMAL PROCESS PICTURE 1
NORMAL PROCESS PICTURE 2
ENLARGED PROCESS PICTURE
PLOT PROCESS PICTURE
Pass word level 2 required
Pass word level 1 required
Pass word level 3 required
LOG-FILES
OP H only
6
Passwords
EXIT MANUAL
Four passwor ds exists in the PACS 2000 and consists of four digits
0000-9999. The passwords are
operator password
•
needed to start restricted processes and to open doors after a process
failure
parameter password
•
needed to accept change of pr ogram parameters
service password
•
needed for entering maintenance menus
program password
•
needed for entering programming menus
The parameter password may, as an option, be exchanged to a pass key
connected to a dig ita l in put. The pass k ey overri des the para meter password.
Passwords at delivery:
The passwords set in the con trol system is revealed in a special docu ment delivered in a sealed envelope together with the sterilizer manuals.
Menu descriptions
Mode menu
This is the first menu shown after power-up. Here the operator can
choose which mode the OP should work in.
ON-LINE MODE for connection with PACS 2000 or
LOCAL MODE for stand alone op eration.
Alternative 3 in the menu ter m inates the program and returns to DOS.
Parameter code is required to use this alternative.
92/09/2508:18:17
MODE MENU
1. ONLINE MODE
2. LOCAL MODE
3. EXIT
P 1PROGRAM 1
STANDBY01
F1F2
PREV
F3
F4
F5F6
F7
BAUDR
F8F9
HELP
F10
MOM.EPS
7
EXIT MANUAL
An alternative is highlighted with
alternative can also be highlighted by pressing the number of the desired
alternative.
Before ON-LINE MODE is activated PACS 2000 communication
baud rate can be altered. F7 sho ws a window were the operator can
choose betwee n the alterna tives 1200 , 2400, 4800 and 9600 vi a a choice
list. Default value is 9600 baud.
Valid only for OP H: If ON-LINE MODE is chosen a window i s
shown where the operator can specify which sterilizer he like to be connected to. Allowed values are: 1 - 99.
ON-LINE / LOCAL MODE
OP can operate in two modes, O N-LINE MO DE and LOCA L MOD E.
In ON-LINE MODE the communication link between OP and PACS
2000 is activated and the data bases in the two units contain s identical
data. In LOCAL MODE OP works without any communication to
PACS.
LOCAL MODE is avai lable on v ersion OP H and OP C while OP 3
always requires ON-LINE MODE.
Following menu functions are not available in LOCAL MODE:
ÏÐ
and selected with ENTER. A
•
START PROGRAM and all under lying menus.
•
CALIBRATION MENU and all underlying menus.
•
ERROR LOGG
•
TEST ANALOG INPUT
•
TEST ANALOG OUTPUT
•
TEST DIGITAL INPUT
•
TEST DIGITAL OUTPUT
•
TEST USER FLAG
•
TEST SYSTEM FLAG
•
TEST PICTURE
•
TEST LED
Function keys:
F1 PREV - Previous menu
F7 BAUDR - Activate PACS 2000 baud rate window
F9 HELP - Help text
8
Main menu
EXIT MANUAL
Select either START PROGRA M, SYSTEM MODE or LOG FILES by
highlighting the desired text usin g
then push ENTER.
Activation of SYSTEM MODE or LOG FILE requires a password with
level 2 (service passwo r d) or hig he r. No n acc epted p asswo rd re su lt s in
a message in window 6.
ÏÐ
or typing the leading number,
Activate program
NOTE!
Item 3 LOG FILES on the menu is only available with OP H.
F1 PREV - Previous menu
F9 HELP - Help text
Activate desired prog ram , from the scrollable list.
ENTER.
The first five programs in the list may also be activated by pushing
F3-F7.
Activation of a program is automatically followed by PARAMETER
INPUT menu.
9
Parameter input
EXIT MANUAL
Functio n keys:
F1 PREV - Previous menu
F3-F7 P1 - P5 - Activate first five progra ms in li st
F9 HELP - Help text
F10 NEXT - Go to PARAMETER INPUT menu without activating any
new program.
This menu will not be shown if the select ed program do es not contain
any adjustable parameter.
With PACS in stand by mode only, this menu allows for the operator to
change adjustable parameters for the previously selected progr a m.
92/09/2508:18:17
PARAMETER INPUT
PARAMETER
STERIL TEMP
STERIL TIME
F1
BACK
F2
F3
P 1PROGRAM 1
SET VALUELIMIT LO
121.0
00:20:00
Enter pas sword:
F4F5F6
00:02:00
STANDBY01
LIMIT HI
100.0
01:00:00
F7
F8F9
135.0
HELP
UNIT
C
F10
NEXT
The parameter pas sword m ust be en tered to enable for an y paramet er to
be changed. If password in put is disabl ed with F1, th e parameter list can
only be scrolled through but no parameters c an be changed.
If KEY password mode is enabled, the password window never occurs
on screen. The status of the specified key input then decides whether the
parameters are allowed to be changed or just d isplayed.
Parameter inputs are checked against the high and low limits shown on
screen. Inputs beyond limits are met with a message in Window 6.
Functio n keys:
F1 BACK - Go to ACTIVATE PROGRA M menu.
F9 HELP - Help text.
F10 NEXT - Go to NORMAL PROCESS PICTURE 1 menu. If bar
code is installed, go to BATCH DE FINITION menu.
10
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