Foxboro FBM206 Pulse Input Module

Foxboro FBM206 Pulse Input Module

Description

Measurement of a machine's rotational speed is often accomplished using a device that transmits high speed pulses. The FBM206 provides the means to accept up to eight of these pulse signals (up to 25kHz) and provide the values to the Foxboro™ DCS. The FBM206b accepts up to four pulse inputs and provides up to four 0 to 20 mA outputs for associated controls.

The FBM206 contains eight pulse input channels, and the FBM206b provides four pulse input channels and four 0 to 20 mA analog output channels. Each input channel accepts a 2-wire, pulse input signal from a sensor. Input devices include vortex and turbine meters, solid state or electromechanical contacts, and other sensors with similar pulse outputs.

The modules perform the signal conversion required to interface the electrical input signals from the field sensors to the redundant fieldbus.

Features

• For the FBM206, eight 7 to 27 VDC, configurable, pulse input channels
• For the FBM206b, four 7 to 27 VDC, configurable, pulse input channels and four 0 to 20 mA analog output channels
• Each input channel accepts a pulse input with a maximum rate of 25 kHz
• Each channel is galvanically isolated from the other channels and ground
• Rugged design suitable for enclosure in Class G3 (harsh) environments
• Execution of the pulse input application program with configurable options for Pulse Rate Totalization and Resolution (on a per module basis) and Meter Scaling Factor
• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the FBM206/206b
• TAs for per channel internally and/or externally loop powered devices

Technical Specifications