Dataforth Corporation 8B43 Series DC LVDT Input Module 8B43-03

SensorLex® 8B43 modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B43 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output. The 8B43 can interface to transducers that will operate on a 10 V excitation voltage and up to 30 mA of excitation current. Signal filtering is accomplished with a 5-pole filter optimized for time and frequency response which provides 100 dB per decade of normal-mode rejection above 1 kHz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other four are on the system side. A special input circuit on the 8B43 modules provides protection against accidental connection of power-line voltages up to 240 VAC. Clamp circuits on the I/O and power terminals protect against harmful transients. Isolation is provided by transformer 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. Features Interfaces to DC Linear Voltage Displacement Transducers High-Level Voltage Outputs 1500 Vrms Isolation ANSI/IEEE C37.90.1 Transient Protection Input Protection to 240 VAC Continuous 100 dB CMR 1 kHz Signal Bandwidth ±0.05% Accuracy ±0.02% Linearity Low Drift with Ambient Temperature CE Compliant C-UL-US Listed ATEX Compliance Pending Mix and Match Module Types on Backpanel