Measurement Computing CIO-DAS16/330 - Manual (Page 10)

3.2 ANALOG INPUTS
Analog inputs to the CIO-DAS16/330 may be connected in three different configurations. These are single-ended,
floating differential, and differential.
WARNING - PLEASE READ
Measure the voltage between the ground signal at the signal source and the PC. Use a volt meter and
place the red probe on the PC ground and the black probe on the signal ground. If the voltage is more
than 10 volts, do not connect the CIO-DAS16/330 to this signal source because you will not be able to
make a valid reading. If the difference is more than 30 volts, DO NOT connect this signal to the
CIO-DAS16/330 because it will damage the board and possibly the computer.
3.3 SINGLE ENDED
A single ended input is two wires connected to the board; a channel high (CH# HIGH) and a Low Level Ground
(LLGND). The LLGND signal must be the same ground the PC is on. The CH# HIGH is the voltage signal source
(Figure 3-2).
Figure 3-2. Single-Ended Input
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