CONSTRUCTION ................................................................................................................................................7
VACUUM AND AIR SYSTEMS ...............................................................................................................................7
PARTS DELIVERED.............................................................................................................................................9
HOW TO INTERPRET DISPLAYS DESCRIBED IN THIS MANUAL................................................................................12
MAIN MENU - OVERVIEW .................................................................................................................................13
1MAIN MENU - TEMP & OPTIONS ....................................................................................................................14
2MAIN MENU - PROGRAM ...............................................................................................................................16
2.1MENU PROGRAM - START ..........................................................................................................................17
2.2MENU PROGRAM - NEW.............................................................................................................................18
2.4MENU PROGRAM - DELETE ........................................................................................................................23
2.5MENU PROGRAM - PRINT...........................................................................................................................23
3MAIN MENU - CONFIGURATION......................................................................................................................24
4MENU SERVICE MODE ..................................................................................................................................26
STATUS DISPLAYS ........................................................................................................................................27
CONNECTING A PRINTER .................................................................................................................................30
EXAMPLES OF DIFFERENT PRINTER OUTPUTS ....................................................................................................30
HYSTERESIS VALUE FOR THE VACUUM-CONTROL .............................................................................................31
GRAPHS OF TEMPERATURE LIMITS AND GRADIENT AND PROGRAM-RUN..............................................................31
RANGE OF GRADIENT .......................................................................................................................................31
GRAPHICAL PRESENTATION OF A PROGRAM-RUN...............................................................................................32
APPENDIX B ................................................................................................................................................... 33
MENU STRUCTURE & INPUT FIELDS................................................................................................................. 33
APPENDIX C ................................................................................................................................................... 34
APPENDIX D ................................................................................................................................................... 35
WIRING DIAGRAM VC 20 WITH VALVE CONTROL .............................................................................................. 35
APPENDIX E ................................................................................................................................................... 36
WIRING DIAGRAM VC 20 WITH VALVE- / PUMP CONTROL ................................................................................. 36
APPENDIX F ................................................................................................................................................... 37
WIRING DIAGRAM VC 50 WITH VALVE CONTROL .............................................................................................. 38
APPENDIX H ................................................................................................................................................... 39
WIRING DIAGRAM VC 50 WITH VALVE- / PUMP CONTROL ................................................................................. 39
APPENDIX K ................................................................................................................................................... 42
DRAWING SPARE PARTS PANEL ...................................................................................................................... 42
APPENDIX L ................................................................................................................................................... 43
DRAWING SPARE PARTS DOOR....................................................................................................................... 43
DRAWING SPARE PARTS CHAMBER ................................................................................................................. 44
APPENDIX N ................................................................................................................................................... 45
DRAWING SPARE PARTS VALVE / POWER SUPPLY ........................................................................................... 45
SPARE PART NUMBERS .................................................................................................................................. 46
SPARE PART NUMBERS .................................................................................................................................. 47
(Name des Anbieters) (supplier's name) (nom du fournisseur)
erklären in alleiniger Verantwortung, dass das Produkt
declare under our sole responsibility that the product
déclarons sous notre seule responsabilité que le produit
Vacuum Drying Oven VC – 20 / 50
Year of Construction 2002
(Bezeichnung Typ oder Modell, Los-, Chargen- oder Seriennummer, möglichst Herkunft und Stückzahl)
(name, type or model, lot, batch or serial number, possibly sources and numbers of items)
(nom, type ou modèle, no de lot, d'échantillon ou de série, éventuellement sources et nombre d’exemplaires)
auf das sich diese Erklärung bezieht, mit der/den folgenden Norm(en) oder normativen Dokument(en)
übereinstimmt
to which this declaration relates is in conformity with the following standard(s) or other normative
document(s)
auquel se réfère cette déclaration est conforme à la (aux) norme(s) ou autre(s) document(s) normatif(s)
(Titel und/oder Nummer sowie Ausgabedatum der Norm(en) oder der anderen normativen (Dokumente)
(title and/or number and date of issue of the standard(s) or other normative document(s)
(titre et/ou no et date de publication de la (des) norme(s) ou autre(s) document(s) normatif(s)
Gemäss den Bestimmungen der Richtlinie(n): following the provisions of Directive(s); conformément
aux dispositions de(s) Directive(s)
(falls zutreffend) (if applicable) (le cas échéant)
73/23/EWG 89/336/EWG
EN 60335-1 1988 EN 55014
(Ort und Datum der Ausstellung) (Name/Unterschrift oder Kennzeichnung des Befugten)
(Place and date of issue) (name and signature or equivalent marking of authorised person)
(Lieu et date) (nom et signature du signataire autorisé)
Installation: Wall distance from the back mm 50 50
Installation: Wail distance from the side mm 50 50
Inner Dimension
Width mm 250 350
Height mm 250 350
Depth mm 320 420
Internal volume l 20 50
Shelves standard/max 1/3 1/5
Load per shelve kg 20 20
Weight (empty) kg 48 62
Temperature range approx. 5 °C over RT to °C 200 200
Temperature deviation
Temperature deviation
Temperature deviation
Temperature fluctuation
Heating up
3)
1)
at 50°C± °C 1.0 1.0
1)
at 100°C± °C 1.7 1.9
1)
at 150°C± °C 2.4 2.6
2)
at 150°C± °C 0.2 0.2
to 70°C Min 39 42
to 150°CMin 58 106
Power supply (±10%) 50/60 Hz V 230/115 230/115
Nominal wattage W 900 1200
Heat radiation at 100°CW 185 205
at 150°CW 243 286
Equipment
Microprocessor -Temperature Controller with LCD Yes Yes
Timer Hours / Min 0-999h 59m 0-999h 59m
Printer – Communication Interface RS 232 Yes Yes
djustable Print Interval YesYes
Programming Program / Step 50 / 15 50 / 15
Ramp function adjustable in steps of °C 0.1 0.1
1) Measured with 3 temperature probes on horizontal level / divided in 1/3 of the chamber size
2) maximum temperature deviation in time for one temperature probe
3) to 98% of set temperature
All technical specification are specified for units with standard equipment at an ambient temperature of 25 °C (77 °F) and a
Voltage fluctuation of ±10 %. The temperature data are determinated in accordance to following DIN 12880, part 2 respecting
the recommended wall clearances of 10 % of the height, width and depth of the inner chamber. All indications are average
values, typical for units produced in series. We reserve the right to alter technical specifications at all times without prior notice.
The Vacucenter VC20 / VC50 is a vacuum oven with a Microprocessor-controller with enhanced Fuzzy-Logic
- Allows precise ramping of temperature as well as an excellent reproduction of temperature distribution in
the chamber.
Special Insulation - Less heat loss. Saves energy and costs. Ambient temperature of housing surface
Robust Swiss quality design – Made even for scientific applications
Work Chambers are of stainless steel and are provided with fully adjustable aluminium shelve
The chambers have well radiused corners for easy cleaning.
Exterior is of textured powder coated mild steel.
Applications
The Vacucenter Line is designed for all purposes of vacuum drying in a variety of laboratory fields.
All Systems have a controller with alphanumeric display and programming capabilities. Temperature ranges
up to 200°C.
Construction
Extremely compact construction. Saves valuable space in the lab.
Inner chamber of electro-polished stainless steel Resistant to chemicals and highly durable.
Much more shelf area than other vacuum ovens (for the same inner volume): max. 5 shelves in the VC 50,
max. 3 shelves in the VC 20.
Shelves made of 5 mm thick aluminium conduct heat efficiently.
Aluminium shelves are anodised to resist chemicals.
Door seal can easily be removed for cleaning or replacing. The door seal of other vacuum ovens is
either glued-in place or screwed-in.
VC 2O only: The shelf supports can easily be removed for ease of cleaning.
All corners are rounded.
The big size glass-window allows a full view of the inner chamber.
The window is made of double glazed safety glass. This is a safety feature: should one pane break, there is
still a second one. Tile double-glazing is also an excellent thermal insulator.
All corners are rounded. The door handle is integrated in the door. No hot surfaces. There is no risk of injury
or burn.
The door latch is spring loaded. Should there be an over-pressure caused by accidental oxidation inside the
chamber, the door will open slightly and allow its release.
Vacuum and Air Systems
Electromagnetic valve controls the vacuum connection at rear. In ease of power failure, this valves shuts
automatically, the oven is tight and thus remains under vacuum. When the power comes back, the vacuum
valve opens automatically and normal operation resumes. The timer continues where it left off.
The inlet of fresh air or inert gas is controlled by a needle valve which allows gentle metering of the incoming
air (or gas) and thus prevents turbulence inside the chamber.
A deflector plate at the inlet of the chamber prevents the incoming air from blowing down directly at a powder
sample.
Fuzzy-Logic microprocessor controller with digital alphanumeric LCD-Display, real time clock, variable fan
speed and temperature ramp.
Intelligent Fan-Speed control IntelliFan - Wide range of temperature ramping functions. More user
application. In combination with Fuzzy-logic gives you an excellent stability of temperature distribution and
accuracy of programmed ramp.
Brilliant LCD Display for user-dialog and easy to operate keypad for fast programming and operating.
User dialog with controller is displaying your local language. Up to five languages can be selected.
Easy to operate and programming with EasyMenu
It allows the storage of 50 programs and 15 program steps (a step = a ramp, a temperature, a fan-speed and
a dwell time=Hold Time). The programs remain stored in memory even without external power (battery
buffered).
Holding Time (dwell time) 0 - 999h 59m
The real time clock allows a process to be started at any time – i.e.: on January 6, 2002 at 5 30 in the
morning.
RS-232 interface. All data can be protocol led with a printer or computer. Remote controlling and
programming, Door-Switch - switch-off heater/fan by opening door
Safety
DIN 12880 class 3.1 In case of over-temperature, a built in safety controller as a back-up circuit takes over
the control of the heating and will shutdown the oven.
There is also an additional mechanical over-temperature device which shuts down the oven
High quality accurate PT 100 temperature sensors.
Superior “Swiss Made” manufacturing quality according ISO9001
Door-Switch - switch-off heater/fan by opening door
Optional threshold pressure Switch (no heating until 300 mbar reached)
Your System will be delivered with following Parts:
1 System Unit
1 Shelf
1 Power Cord
1 User Manual
Install requirements
Ensure that following conditions are met before you install the system.
Electric power connection as per type plate on inside of door must meet your power connector.
The ambient temperature is min. +5° C ... max. 35° C (+40° F ... 95° F)
Installing
Place shelf in appropriate position.
Plug cord
Close door.
Switch power on
Display shows current Firmware Version see Power On Sequence
To start oven or program it see Chapter Operating Menus
Cleaning
To clean the System use mild detergents. No Acid or similar detergents should be used.
1 Controller
2 Pressure Gauge
3 Inert Gas / Air Inlet
4 Precision Valve
5 Vacuum Switch
6 Door Handle
7 Shelf
8 Shelf Glider
9 Double Paned Security Glass
10 Spring loaded door lock
11 Spring loaded door hinge
12 Pass through NW 25
13 Serial Interface RS232
14 Power connection
15 Vacuum connection
16 Serial number plate
17 Power connection for vauum pump (only by option
Enter Confirm a menu selection, Confirm a value input or an answer choice
ESC
+
-
Escape Cancel actual operation, Go back in Menu Structure, Quit actual state ….
Plus
Minus
To control the system the controller has few “easy to use” buttons on a foil
keypad. Simply press desired button.
All information is displayed on a Liquid Crystal Display (LCD) with backlit.
LED Indicators for status of Power, Heating and Program are used to indicate
the main process status.
Buzzer (not visible) is indicating audible Status or Alarm
Increase a value in flashing input fields , Select multiple Choices;
Input Value must flash to make + button operable
Decrease a flashing value, Select multiple Choices;
Input Value must flash to make + button operable
ON/OFF Switch ON or OFF your System. When on LED is lit
LED Indicators
When lit: Heat Power is on
When lit: You are running a program
When flashing: A delayed start for program operation was entered.
How to interpret displays described in this manual...
Power ON Sequence
By pressing the power-on button, the display will show the
Salvis Lab
Revision XX.XX
Input Field
software version. All standard, pre-setted or saved information will
be loaded during this process. After a while display will show first
Main Menu Point
Set Temperature
100.1°C
Multiple Input Fields
Set_Start-Date
DDMMYY__17.08.07
Multiple Choice Fields
Display_Interval
Yes___ No
A input value which is underlayed with yellow(grey) background
means this value is flashing on the real display.
If you reach a multiple input display first time, the first part (… of 3
in this example) of the input field is flashing to indicate input here..
Flashing input fields are changed with +/- keys
In a multiple choice field the last actual setted (pre-set) option will
flash. Change option with + or – and confirm with
Definitions of terms
What is a Set Temperature?
A Set Temperature is the target temperature you want operate the system with.
What is a Gradient?
A Gradient is the slope of the heating up process to the specific set temperature.
It is indicated as ºC / Minute. Negative Gradients are not allowed. The maximal value of a gradient is system
depending and has a range and is pre-defined by factory. A system specific curve of gradient corridors see
What is a Set Vacuum / Hysteresis Vacuum (only with Vacuum Controller Option)?
Set Vacuum is the target vacuum value. Hysteresis Vacuum is the vacuum-value range to the set value.
Within this range the valve or pump is not active. This is a P-control behaviour.
What is a Holding Time?
A timer is used to specify how long a set temperature has to be hold. The timer starts counting back when
the set temperature is reached. The maximal time you can set is: 999 hours and 59 minutes. This equals a
max time of 41 days 15 hours and 59 minutes
What is a Start Date/Time
If you are using a start date or time you will be able to set a future date/time to start a process or a program.
Manual Operation: Define a set temperature and options like
Main Menu
Temp & Options
1.1 Set Temperature
gradient, Vacuum values, Hold-time (dwell-time), programmed
start date/time.
Press to select Ä 1.1 ESC returns to Ä 1
Set_Temperature_
_________100.1°C
1.2 Set Vacuum
Set Vacuum
_____ 120.6mbar
1.3 Set Hysteresis of vacuum (P-type control behaviour)
Hyster. Vacuum
_____ 2.5mbar
1.4 Select Quick Start or Start with Options
Start_?
Now__ Options
1.5 Set Gradient
Gradient
2.0°C/Min
+/- change desired value.
confirms and saves value Ä 1.2
ESC restores the old value or returns to Ä 1
Option “Vacuum Control” (Valve or Pump) only !
+/- Change value
confirms and saves value Ä 1.3
ESC restores the old value or returns to Ä 1
Option “Vacuum Control” (Valve or Pump) only !
+/- Change value confirms and saves value Ä 1.4
ESC restores the old value orreturns to 1
+/- Select desired answer
confirms and saves value
If Now selected: System will start immediately Ä 6
If Option
ESC cancels and returns to Ä 1
+/- Change value confirms and saves the value Ä 1.6
ESC restores the old value or returns toÄ 1
Note: A value of 0,0 means maximal possible gradient value!
confirm value and skips to the next input field (HH Ä MM) or
stores the time and go to Ä 1.7 ESC restores the old value and skips back one input field
(MMÄHH) or goes back to Ä 1
Note: A value of 0:00 means endless holding time
+/- Change desired value
confirm value and skips to the next input field (DD Ä MM,
MMÄYY) or stores the date and go to Ä 1.8ESC restores the old value and skips back one input field
(YYÄMM, MMÄ DD) or goes back to Ä1
Note: The pre-set date is the actual date from the real-time clock.
+/- Change desired value
confirm value and skips to the next input field (HH Ä MM) or
stores the time and go to :
If the Start Date and/or Start Time is in the past, the display will
return back to Ä 1
If your Start Date and/or Start Time is in the future you will see
the operating display Ä 5ESC restores the old value and skips back one input field
(MMÄHH) or goes back to Ä 2.1 Note: The pre-set time is the actual time from the real-time clock.