The 8B30-01 is a voltage-input isolation module designed to monitor millivolt-level signals and provide a buffered -5V to +5V analog output for data acquisition systems. It accepts input signals from -10mV to +10mV and features 1500Vrms isolation, 120dB common-mode rejection, and 70dB normal-mode rejection at 60Hz with a 3Hz bandwidth. Input protection is rated for continuous exposure to 240VAC and complies with ANSI/IEEE C37.90.1 transient standards. The module operates from a +5VDC ±5% supply, draws 25mA, and is housed in a 1.11″ × 1.65″ × 0.40″ package. It meets UL/cUL listing, CE compliance, and ATEX compliance pending, and is rated for operation from -40°C to +85°C. Accuracy is ±0.05% of span and linearity is ±0.02% of span.
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B30 or 8B31 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 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 four are on the system side.
A special input circuit on the 8B30 and 8B31 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 | 8B30-01 |
| Product Name | 8B30 Voltage Input Modules, Narrow Bandwidth |
| Data Acquisition | Input Module |
| Form Factor | Modular Bay or Slot System |
| Outputs | Analog Voltage Output |
| User Interface | None |
| Application | General Lab & Industrial |
