Menu functions
56
8.6. Limits
The limits IntMax and IntMin are only valid under external control
(see 7.5.
Internal / external control). They restrict the
temperature of the internal bath to the desired
maximum/minimum, also if the controller would require a
higher/lower temperature for the external system. As a result the
external setpoint may thus not be reached.
When operating the temperature system under external control,
band limiting is active. The preset value determines the maximum
temperature difference between the internal bath and the external
load. This adjustment possibility prevents sensitive equipment and
temperature devices from damage.
Heating and cooling power of the instrument are adjustable.
100 % corresponds to the values in the technical specifications of
the equipment.
•
Select the submenu "Limits" with enter
.
•
Select the desired option with the up/down cursor keys
.
A flashing digit indicates that a value needs to be entered.
IntMax
see temperature range LHxx
IntMin
see temperature range LHxx
Band
0 to 200 °C
HeatingMax
0 to 100 % in steps of 1 %
CoolingMax
0 to 100 % in steps of 1 %
•
Set the newly entered value by pressing enter
.
•
Return to the previous menu level by pressing escape
.
8.7. Interface
The interface parameters are set by selecting the submenu
"Interface" on the temperature system. Normally, this is a one-
time-only adjustment.
•
Press
enter
to select the submenu "Interface".
•
Select the desired option with the up/down cursor keys
Enter the desired value for the flashing digit.
Type
RS232 / RS485
Baudrate
4800/9600
Parity
none/even/odd
Handshake
software handshake/hardware handshake
Address
0 to 127
•
Press the P-key
to select the desired parameter and set
with enter
.
•
Return to the previous menu level with escape
.
Summary of Contents for Presto Plus LH 47
Page 20: ...Operating controls and functional elements 20 Rear...
Page 41: ...41...
