The 8B50-03 is a voltage-input signal conditioning module that isolates, filters, and amplifies a ±100mV input range to produce a 0 to +5V analog output. It features 1500Vrms isolation, 100dB common-mode rejection at 50/60Hz, and 100dB per decade normal-mode rejection above 20kHz. The module protects against continuous 240VAC input overloads and transient events per ANSI/IEEE C37.90.1. Powered by +5VDC ±5%, it operates from -40°C to +85°C and measures 1.11" x 1.65" x 0.40" (28.1mm x 41.9mm x 10.2mm). Accuracy is ±0.05% of span, linearity is ±0.02% of span, and drift is ±10ppm/°C offset and ±75ppm/°C gain. It is UL/cUL listed, CE compliant, and manufactured per RoHS III Directive 2015/863.
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 | 8B50-03 |
| Product Name | 8B50/51 Voltage Input Modules, 20kHz Bandwidth |
| Data Acquisition | Input Module |
| Form Factor | Modular Bay or Slot System |
| Outputs | Analog Voltage Output |
| User Interface | None |
| Application | General Lab & Industrial |
