JULABO CF41 Cryo-Compact Circulators - Manual (Page 52)

Menu functions
52
8.5.2. REG+E-PROG - programmer input
Menu >Configuration<
Configuration
>Setpoint : eprog
Keypad/RS232/extPt100
Autostart: off
Standby : pump off
Language : english
Reset : no
Variable : Control /
serial/ eprog
Menu >Inputs/Outputs<
>Value as: Flowrate
Signal : Voltage
L Value 0.0L
H Value 50.0L
Flowrate: xx.xL Setpoint/Variable
(Liters/Minute)
Input EPROG
E-PROG - Input
Setting needs to be carried out, if
1. setpoint programming is to be made via an
external voltage or current source or
programmer
For this, in the menu >Configuration< first set
the menu item >Setpoint< to >eprog<.
2. the heater variable should be controlled via an
external control pulse.
For this, in the menu >Configuration< set the
menu item > Variable.< to >eprog<.
3. the signal of an external flow meter should be
registered.

The E-Prog input can only be used either under menu item
>Setpoint< or under menu item > Variable <.
If the input is neither occupied by >Setpoint< or > Variable <, the
signal of a flow meter can be connected.

First set menu >Configuration<, then menu >Inputs/Outputs<.
Example:
>Value as: Setpoint
Signal : Current
L Value : 20.0°C
H Value : 300.0°C
Setpoint: 50.0°C
Input EPROG

Connect the external voltage or current source or programmer to
socket (12) REG+E-PROG of the circulator.
Selecting the signal:
The programmer (E-PROG) input of the circulator can be matched to
the output signal of the external voltage or current source.
Voltage
voltage input
Current current input
„L Value“ - Setting the LOW value: (See below

)
First adjust and set the lowest voltage or current on the external
voltage or current source (e.g. 0 V or 0 mA).
Then after approx. 30 secs enter the corresponding temperature
value (e.g. 20.00°C).on the circulator by pressing the appropriate
buttons on the keypad and press enter to set.
„H Value“ - Setting the HIGH value: (See below

)
First adjust and set the highest voltage or current on the external
voltage or current source (e.g. 10 V or 20 mA).
Then after approx. 30 secs enter the corresponding temperature
value (e.g. 300 °C).on the circulator by pressing the appropriate
buttons on the keypad and press enter to set.
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 LCD DIALOG-DISPLAY for control purposes.