The 8B50-04 is a voltage-input signal conditioning module that isolates, filters, and amplifies a -20mV to +20mV input to produce a 0 to +5V analog output. It features 1500Vrms isolation, 100dB CMR at 50Hz/60Hz, and 100dB per decade of normal-mode rejection above 20kHz. Input protection safeguards against continuous 240VAC overvoltage and transient events compliant with ANSI/IEEE C37.90.1. The module operates from a +5VDC ±5% supply, draws 25mA, and maintains ±0.05% accuracy and ±0.02% linearity. It is housed in a 1.11" x 1.65" x 0.40" package, operates from -40°C to +85°C, and meets CE, UL/cUL, and RoHS III standards. Output is protected against continuous short-to-ground conditions.
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B50 or 8B51 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output.
Signal filtering is accomplished with a 5-pole filter optimized for time and frequency response which provides 100dB per decade of normal-mode rejection above 20kHz. 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 8B50 and 8B51 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%.
The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.
| Dataforth Corporation | |
|---|---|
| Product Category | Data Acquisition |
| Product Number | 8B50-04 |
| Product Name | 8B50/51 Voltage Input Modules, 20kHz Bandwidth |
| Data Acquisition | Input Module |
| Form Factor | Backpanel |
| Outputs | Analog Voltage Output |
| User Interface | None |
| Application | General Lab & Industrial |
