JULABO Magnum 91 Temperature System - Manual (Page 53)

Temperature System Magnum 91
53
>EPROG: Current
L Value 0.0°C
H Value 300.0°C
ExtSet 50.0°C
EPROG : 50.00°C
IntAct: 50.00°C
Power: 50 %
Control: intern
3x
Example:
 Set the external voltage or current source output for the equivalent of
50 °C temperature setpoint.
The value adjusted and set on the external programmer is
displayed in line 4 of the DIALOG-DISPLAY (LCD) for control purposes
(Example: ExtSet: 50.0
C).
After returning the LCD display to standard display by pressing
ESC
the
temperature value adjusted and set on the external voltage or current
source is displayed in line 1
(Example: EPROG 50.00
C).
20
40
60
80
100
200
300
250
150
°C
1 2 3 4 5 6 7 8 9 10 V
2 4 6 8 10 14 18 20 mA
A
B
EPROG : 152.00°C
IntAct: 50.00°C
Power: 100 %
Control: intern
>EPROG: Current
L Value 20.0°C
H Value 200.0°C
ExtSet 152.0°C
3x
This EPROG input enables the use of different voltage and current
values as program parameters.
 "L Value" - Setting the LOW value:
1) Adjust and set the lowest desired value on the voltage or current
source resp. (Example A: 1 V).
Wait appr. 30 seconds.
2) Assign a lower temperature threshold value to this adjusted
voltage/current value by pressing the appropriate buttons on the
keypad of the instrument (Example A: 20
C ) and set by pressing
enter
.
 "H Value" - Setting the HIGH value:
1) Adjust and set the highest desired value on the voltage or current
source resp. (Example A: 10 V).
Wait appr. 30 seconds.
2) Assign an upper temperature threshold value to this adjusted
voltage/current value by pressing the appropriate buttons on the
keypad of the instrument
(Example A: 200 C) and set by pressing enter .
IN Return to the standard display by pressing escape
ESC
.
Example B in the diagram serves to illustrate that the end point values are
freely selectable.
Example out of diagram A:
IN Adjusting the voltage source for an output of 7.6 V!
Line 4 of the DIALOG-DISPLAY (LCD) shows the externally set setpoint
value. The instrument calculates this value from the rise angle of the two
predecided end points (in example A: 7.6 V correspond to an external
setpoint temperature of 152.0
C ).
After returning the LCD display to standard display by pressing escape
ESC
, this value is displayed in line 1
(Example: EPROG 152.00 C).
Notice:
If this adjustment is not correctly performed at two different points, the setpoint setting will be
incorrect.