Lake Shore Model 331 Temperature Controller User’s Manual
4.18 DISPLAY
BRIGHTNESS
The user is able to control the brightness of the vacuum fluorescent display. Press and hold the
Display Format
key for several seconds until you see the following display.
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Brightness 75%
Use the
s
or
t
key to select 25%, 50%, 75%, or 100%. Press the
Enter
key. The instrument returns to
the normal display.
CAUTION:
Prolonged use of the display brightness on the 100% setting will reduce the life of
the vacuum fluorescent display.
4.19 REMOTE/LOCAL
“Local” refers to operating the Model 331 from the front panel. “Remote” refers to operating the
controller via the IEEE-488 Interface. They keypad is disabled during remote operation. The mode of
operation can be changed by pressing the
Remote/Local
key. When in the Local mode, the Remote
LED in the upper right-hand corner of the front panel will be Off. When in the Remote mode, the
Remote LED will be On.
4.20 INTERFACE
The
Interface
key serves three functions: set the Serial Interface Baud rate, set the IEEE-488 Interface
Address and Terminators (Model 331S Only), and select the Model 330 Emulation Mode.
To set the Serial Interface Baud rate, press the
Interface
key.
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Baud 9600
Use the
s
or
t
key to cycle through the choices of 300, 1200, and 9600 Baud. The default Baud rate is
9600. Press the
Enter
key to accept the changes or the
Escape
key to keep the existing setting and
return to the normal display.
On the Model 331S only, to set the IEEE-488 Interface Address and Terminators, press the
Interface
key, then press the
Enter
key until you see the following screen.
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IEEE Address 12
Use the
s
or
t
key to increment or decrement the IEEE Address to the desired number. The default
address is 12. Press the
Enter
key to accept the changes or the
Escape
key to keep the existing
setting and return to the normal display. Press the
Enter
key again to see the following screen.
Select With °®
IEEE Term Cr Lf
4-36
Operation
