DI–4718B Series Hardware Manual
DI-8B Modules
36
DI-8B40/41 Analog Voltage Input Modules, 1kHz Bandwidth
Each DI-8B40 and DI-8B41 module isolates, filters, and amplifies a voltage input signal and provides an analog volt-
age output.
Signal filtering is accomplished with a multiple pole filter optimized for time and frequency response which provides
70dB of normal-mode-rejection at 60Hz. One pole of this filter is on the field side of the isolation barrier for anti-
aliasing, and the remaining poles are on the system side.
A special input circuit on the DI-8B40 and DI-8B41 modules provides protection against accidental connection of
power-line voltages up to 240VAC. Clamp Circuits on the I/O and power terminals protect against harmful transients.
Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The module is
powered from +5VDC, ±5%.
Ordering Information
MODEL
INPUT RANGE
OUTPUT RANGE
DI-8B40-01
-10mV to +10mV
-5V to +5V
DI-8B40-02
-50mV to +50mV
-5V to +5V
DI-8B40-03
-100mV to +100mV
-5V to +5V
DI-8B41-01
-1V to +1V
-5V to +5V
DI-8B41-02
-5V to +5V
-5V to +5V
DI-8B41-03
-10V to +10V
-5V to +5V
DI-8B41-07
-20V to +20V
-5V to +5V
DI-8B41-09
-40V to +40V
-5V to +5V
DI-8B41-12
-60V to +60V
-5V to +5V
