PI-6373-001 Rev B
B373-001 O-IO VDC Analog Input
DATA SHEET
The B373-001, O-10 VDC Analog Input converts two O-10 VDC analog signals to numerical values that range
u’
from 0 to 999 and feeds these values to the Micro 84’” controller.
FEATURES
Two isolated channels
Both channels O-10 VDC compatible
Differential inputs
High Accuracy
lo-bit resolution
Self-contained power supply
Optional Fanning Strip permits module
removal without disturbing field wiring
Designed for harsh industrial environments
UL listed
GENERAL DESCRIPTION
The B373-001 O-10 VDC Analog Input is an input
module for the Micro 84 controller. It converts
two O-10 VDC analog signals to numerical
values that range from 0 to 999. These values
are directly proportional to the input. For exam-
~ ple, if the input voltage increases 10 percent,
the numerical output also increases 10 percent.
The Analog Input Module transfers these nu-
merical values to input registers 3001 through
3004. Once in the registers, these values can be
used to control timers, counters, sequencers; or
it can be manipulated by arithmetic functions.
Typically, the B373 is used in data acquisition
and set point applications.
The varying voltages which are inputs to the
B373, represents parameters such as pressure,
level, temperature, humidity, weight and posi-
tion. These inputs come from transmitters or
transducers that may be located several hun-
dred feet from the input module. You simply
connect these inputs to a front-mounted, screw
terminal strip. This strip is compatible with an
optional Fanning Strip (P/N 0212-012), which
allows quick module replacement without dis-
turbing field wiring.
To simplify installation, the terminals on the
strip are clearly marked as to which is channel
1 and which is channel 2, so that you can con-
nect the varying d-c voltage operation to either
or both channels.
The voltage input is actually a differential input
to achieve high accuracy and significant noise
immunity. Moreover, you can make the connec-
tions without adding more electronic
components.
Besides the terminal strip, an OUT OF RANGE
diagnostic indicator for troubleshooting is also
located on the front of the B373 module. It
flashes whenever the input is out of its pre-
scribed range (O-10 VDC). This indicator will
also show that one of the input wires is either
shorted to ground or open.
Both Channel 1 and Channel 2 inputs are iso-
lated from each other. In addition, the inputs
are isolated from all l/O modules connected to
the Micro 84 and from the Micro 84 controller
itself.
-ii GOULD
Electronics
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