ZES ZIMMER LMG450, User Manual

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Instrument controls LMG450
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16. ComA: Serial RS232 interface
This is the standard serial interface for remote control of the LMG450.
This interface is also used for software updates and service purposes.
9-pin SUB-D socket
17. Channel extension
Here you can later on connect additional measuring channels.
18. Printer
Centronics compatible interface or printer connection
25-pin SUB-D socket
4.3 Display
The display is divided into 3 sections:
•
The softkeys at the right border change their meaning depending on the actual menu. A
softkey with a black background is an active softkey. A dotted softkey can not be used.
•
The elements of the status line at the top of the display are described in ‘4.3.1 Status line’.
In this line you can see the most important status information of the instrument. This line is
always visible.
•
In the main display the different menues are displayed. This can be measuring values, set up
menues or graphs.
At the bottom of this region a possible error message is displayed. This error messages have
to be quit by pressing Enter or Esc.
4.3.1 Status line
Figure 15: Status lines with 3 different wirings
The status line has the following sub sections (from left to right):
•
The voltage and current signal level indicators. Here you can see how much of the actual
voltage/current range has been used. This display is important for the selection of the
measuring range. Between the two bars you can find two information: The upper one is the
synchronisation source of the channel. Here you can find:
Un for the voltage channel n
In for the current channel n
XT for extended Trigger