Julabo Presto Plus LH 47, Руководство по эксплуатации

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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
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
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 .
•
Return to the standard display by pressing escape .
Example B in the diagram serves to illustrate that the end point
values are freely selectable.
Example out of diagram A:
•
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
, 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.