DI-194RS User’s Manual
Introduction
1
1. Introduction
This manual contains information designed to familiarize you with the features and functions of the DI-194RS serial
port data recording module.
The DI-194RS Serial Port Data Acquisition Module
The DI-194RS is a portable data recording module that communicates through your computer's RS-232 (or serial)
port. It features four single-ended analog inputs, three digital inputs, a ±10V full scale measurement range, and can
record at rates up to 240 samples per second.
W
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/Lite Waveform Recording Software and W
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Waveform
Browser Playback and Analysis Software
The W
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software shipped with all DATAQ Instruments’ serial port products includes W
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/Lite waveform
recording software and W
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Waveform Browser playback and analysis software.
W
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/Lite waveform recording software can be used to record waveforms directly and continuously to disk while
monitoring a real time display of the waveforms on-screen. It operates and displays waveform signals in real time at
the full sample rate of the instrument being used. W
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/Lite is limited to a 240 Hz maximum throughput rate
when recording to disk.
W
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Waveform Browser playback software (also known as “WWB”) offers an easy way to review and analyze
acquired waveforms. A built-in data file translator allows the user to display multiple waveforms acquired by
W
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/Lite or any of a wide range of data acquisition packages. The software’s disk-streaming design allows data
files of any length to be graphically displayed rapidly, in normal or reverse time directions. Seven standard cursor-
based measurements, frequency domain, and statistical analysis functions help simplify waveform analysis and inter-
pretation.
Both W
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/Lite and W
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Waveform Browser are available for download free-of-charge from our web site
(www.dataq.com).
Help
Both the W
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/Lite and the W
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Waveform Browser software utilize context-sensitive help. For help with
any particular function, simply highlight the menu item in the W
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software and press the F1 key. This will take
you immediately to the help topic most relevant to that menu item. The help files may also be accessed through the
Help menu in the Software. Help files are updated regularly and may be installed through our web site if desired.
Conventions Used in the Documentation
Before using W
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software, please read this section to understand some of the terms and notational conventions
used here and in the Help Files.
General Conventions
Commands you choose are given with the menu name preceding the command name. For example, the phrase
“Choose File Open” tells you to choose the Open command from the File menu. This naming convention describes
the sequence you follow in choosing a command - first you select the menu, then you choose the command.
Mouse Conventions
In general, most mouse actions require only the left mouse button. For example, carrying out a menu command or
working in a dialog box requires only the left mouse button. Since the majority of mouse procedures are done with
