Foss Soxtec 2050 Manual Del Usuario página 55

Soxtec™ 2050 Automatic System
Fig. 5:5 The display on the Control Unit
1 Overtemperature setting
2 Set overtemperature
3 Program number
4 Temperature setting
5 Display
6 Temperature on hot plate
7 Plus
8 Set for program
9 Minus
10 Time for drying step
11 Start/Stop program
12 Position control
13 Air
14 Hot plate (cooling water control)
15 Time for recovery step
16 Time for rinsing step
17 Time for boiling step
18 Locking device for change of over-
temperature setting
Fig. 5:6 The rear side of the Control Unit
1 Power
2 Mains inlet
3 Voltage equalizer connection
4 Contact for hot plate cable
5 Contact for temperature sensor
cable
6 Contact for communication cable to
Drive Unit
7 Air pressure outlet
Fig. 5:7 Front of the Drive Unit
1 Fuse
2 Voltage equalizer connection
3 Mains inlet with power
4 Contact for communication cable
5 Sample rods
6 Up and down key to control sample
rods
7 Up and down key to control conden-
sors
8 Condensers
Fig. 5:8 Rear side of Drive Unit
1 Wires from Extraction Unit
2 Cooling water outlet to Extraction
Unit
3 Cooling water inlet
User Manual 1000 7414 / Rev. 4
11.6 Explanations of Con-
trols and Symbols
11.6.1 Control Unit
SET 4
This key is available in two places on the Control
Unit. One is on the overheating control part of the
Control Unit for selecting the correct upper over-
temperature. This key is active when the 5 is
opened. The second 4 key is located on the pro-
gram control part of the controller and is used for
stepping between different settings, e.g. tempera-
ture and times for the various extraction steps.
LOCK 5
The key is used to lock the selected overtempera-
ture and prevent it from being changed by unau-
thorized persons. When the key is in the open
padlock position the overtemperature can be
changed by pressing the 4 key. The key should
be controlled/handled by the laboratory supervi-
sor.
START/STOP 6
This key is used to start or stop the analysis pro-
gram.
PLUS/MINUS 7 8
Keys used between analyses to select a program.
They can also be used as stepping keys in combi-
nation with the 4 key to increase or decrease the
temperature settings.
POSITION CONTROL 9
This key is active only between analyses and not
active when a program is running. It is pressed
each time the Extraction Unit has to be moved to
different positions for loading/unloading sample
thimbles or cups. Each time the key is pressed the
sample positioning rods and/or condensers move
in a preprogrammed way. There are three possible
positions.
Position 1
Loading/unloading thimbles = condensers in up-
per position and sample positioning rods in lowest
position. This is the default position when the
power is switched on.
Position 2 / Position 4
Loading/unloading cups = condensers in upper
position and sample positioning rods in upper po-
sition.
Position 3
Mate cups and condensers = condensers move to
intermediate position to mate with the cups hang-
ing in the cup stand.
AIR F
This key is active when the program has reached
the recovery step of the extraction and is used to
start the air pump.
HOT PLATE E
This key is used to preheat the hot plate prior to
analysis. It also opens the cooling water valve
when the hot plate is turned on.
11:3