DI-8B30 Analog Voltage Input Module 3 Hz Bandwidth (±10 mV ~ ±100 mV Input Range)
● Accepts Millivolt Level Signals ● High Level Voltage Outputs ● 1500 Vrms Transformer Isolation ● ANSI/IEEE C37.90.1 Transient Protection ● Input Protected up to 240VAC Continuous ● 120 dB CMR ● 85 dB NMR at 60 Hz ● ±0.05% Accuracy ● ±0.02% Linearity ● Low Drift with Ambient Temperature ● CSA, FM and CE Certifications Pending ● Mix and Match Modules
DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B30 module isolates, filters and amplifies a voltage input signal and provides an analog voltage output.
Signal filtering is accomplished with a three-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 other two are on the system side.
A special input circuit on the DI-8B30 modules provides protection against accidental connection of power-line voltages up to 240VAC.
Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.
The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.
