The B373 is easy to install. First it is housed in
a lightweight, shielded, durable Lexan case. It
contains mounting brackets at the rear of the
case which simplifies installation. Next, it can
be mounted anywhere in the l/O structure. Con-
nectors located on the left- and right-rear sides
of the case plug into similar connectors on ad-
jacent modules.
This plugging action automatically connects the
Analog Input Module to the data bus of the
Micro84. If the B373 is the right-most module in
the l/O structure, you have to plug a termination
connector into the connector located on the
right-rear side. This termination connector is
shipped with the Micro 84 controller. To mini-
mize installation costs, the Micro 84 provides
the B373 with all operating voltages, thus
eliminating the need for a separate power
supply.
The B373 meets the stringent requirements of
both IEEE and ANSI standards for radiated
surge withstand capability (SWC). The B373
also withstands the severe voltage transients,
electromagnetic interference, and magnetic
fields commonly encountered in an industrial
environment.
SPECIFICATIONS
Electrical Characteristics
Input Range
O-10 VDC
Resolution 1 of 999 counts
Voltage mode
10 mV per count
Accuracy
+ 0.1%/l count @ 25°C
f 0.2%/2 counts @
O-60%*
*(You can recalibrate to + 0.1% at a
particular temperature betwen 0-6OOC.)
Linearity
0.05% of full scale
Input Impedance
1 Megohm, differential
0.5 Megohm each input to
shield
Channel Isolation
Module Isolation
Input Protection
Common Mode
Rejection
Input Filter
19 VI-7 V (with respect to
module shield terminal)
1500 VRMS for one
minute
240 VRMS
- 86 dB @ 50160 Hz
-3 dB down @ 18 Hz,
rolloff 20 dB per decade
Circuit Characteristics
Topology
2 channels
Operating Modes
Independently selectable
current or voltage
Register Format
Nos. 3001 & 3002 or Nos.
3003 & 3004
Data Format
Throughput Rate
0 to 999 counts linear to
inputs
1.25 samples per second
(each channel)
Environment Requirements
Operating Temperature 0 to 60°C
Humidity
0 to 95% (non-
condensing)
Shock
15 G for 11 ms
Vibration
0.625 G, 50-500 Hz
EMI
MI L-STD-461 B
MI
Helmholtz coil (20 Gauss)
RFI
FCC Class A
Surge withstand
IEEE STD 472-1974 and
Capability (SWC)
ANSI C37.90-1974 (2500 V,
1.5 mHz for 6 ps) Coupled
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