Dataq DI-710 Series, Руководство пользователя

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DI–710 Series and DI-715B Series Hardware Manual
Accessories
45
Input Signal Configuration
Each DI-205 may be configured to connect to 16 single-ended or 8 differential channels. In addition, any combination
of single-ended or differential channels may be applied. A differential channel is configured by using two single-
ended inputs. Use the following illustration for input connections.
Note that when an input channel is configured for differential operation, the binding post associated with that chan-
nel's high (+) input assumes the channel number.
Connecting a Single-ended Amplifier
A single-ended amplifier is the most straightforward approach to connecting signals to the DI-205. However, to
derive adequate performance, the use of a single-ended amplifier requires that the signal to be measured is relatively
high level (greater than or equal to 1V full scale), and the distance from the signal source to the DI-205 is relatively
short (less than 15 feet). Assuming these conditions exist, a single-ended amplifier may be connected according to the
diagram below.
CHAN. 1
S. GND
S. GND
CHAN.9(1)
Signal Leads
Channel 1 configured
for single-ended input
CHAN. 1
S. GND
S. GND
CHAN.9(1)
Signal Leads
Channel 1 configured
for differential input
+ input
- input
(-)
(+)
1 of 16 analog grounds
1 of 16 analog inputs
Signal
Source
DI-205
Terminal Strip