Menu functions
36
7.5. Internal / external control
ext. Pt100
The temperature system offers the possibility of internal temperature
control in the internal bath or external control directly in an external
system.
Setup for external control:
Connect a Pt100 sensor to the socket "EXT" of the Presto
®
temperature
system, if necessary perform a calibration using the "ATC Ext:" function
(see page 53) and then securely fix the sensor in the external system.
-OFF-
S xx.xx
P x.xx
ESC
Setp: 120.00°C
IntAct 21.00°C
ExtAct: 20.00°C
Control: Intern
←
To swap internal to external control:
•
Press the key
in operating state "OFF" to select the control
type.
•
The DIALOG-DISPLAY (LCD) indicates the effective control type in
line 4
>Control: intern< or > Control: extern<
Setp: 120.00°C
IntAct 21.00°C
ExtAct: 20.00°C
Control: Extern
←
Int
←
21.00
S 120.00
E 20.00
←
•
Press the start/stop key
.
Temperature indication:
•
The DIALOG-DISPLAY (LCD)
simultaneously indicates both actual temperatures.
•
The
VFD-Info-Display
indicates the actual temperature in line 1. In the header the
corresponding symbol >Int< or >Ext< is illuminated.
Press the key
to swap the display.
•
It is useful, to set line 3 to show the actual temperature >E xx.xx°C<
by pressing the key
.
Notice
Place the external sensor into the temperature-controlled medium and securely fix the sensor.
8. Menu
functions
•
Press the MENU key
to enter the menu level.
•
Use the up/down cursor keys
to select the desired submenu
and press enter
.
•
Press
escape
ESC
to return to the previous menu level.
