PI-6375-001 Rev B
B375001 4-20 mA Analog Input Module
DATA SHEET
The B375001, 4-20 mA Analog Input Module converts two 4-20 mA, or two l-5 VDC analog
signals, or one of each to numerical values that range from 0 to 999 and applies these values
to the Micro 84’” controller.
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FEATURES
Two isolated channels
Both channels 4-20 mA and l-5 VDC
compatible
Differential inputs
High accuracy
IO-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 B375001 4-20 mA Analog Input is an
input module for the Micro 84 controller. It
converts two 4-20 mA, or two l-5 VDC
analog signals, or one of each to numerical
values that range from 0 to 999. These
values are directly proportional to the input.
For example, if the input current or voltage
increases 10 percent, the numerical output
also increases 10 percent.
The Analog Input Module transfers these
numerical 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 B375 is used in data acquisi-
tion and set point applications.
The varying current/voltage, which are in-
puts to the 8375, represent parameters
such as pressure, level, temperature,
humidity, weight and position. These inputs
come from transmitters or transducers that
may be located several hundred feet from
the Input Module. You simply connect
these inputs to a front-mounted, screw ter-
minal strip. This strip is compatible with an
optional Fanning Strip (P/N 0212-012), which
allows quick module replacement without
disturbing field wiring.
To simplify installation, the terminals on
the strip are clearly marked so that you can
connect either the 4-20 mA current loop or
the varying d-c voltage (1-5 V) operation to
each channel. (The voltage input is actually
a differential input to achieve high ac-
curacy and significant noise immunity.)
Moreover, you can make the connections
without adding more electronic
components.
To further simplify installation, the B375 is
factory configured in the current loop mode
using shorting bar between terminals 1 and
2 and 7 and 8, as shown on the terminal
iii GOULD
Electronics
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