P0914XS Foxboro ( by Schneider Electric ) FBM237 Channel Isolated Output Interface Module

The FBM237 contains eight 0-20 mA analog output channels. In situations where control system reliability is important, the FBM237 may have a redundant module installed. This permits all eight outputs to maintain operation in the presence of a single fault and during the time that the suspect module is removed and replaced. The 0-20 mA signals are electrically compatible with HART® field devices.

OVERVIEW

The FBM237, 0 to 20 mA Output Module contains eight channels.The outputs are galvanically isolated from other channels and ground. The module can be used as a single unit, or as a redundant pair (two FBM237s). When used as a redundant pair, field output signals are wired to one common termination assembly (see Figure 1). Each module in the pair independently holds the output(s) at its specified output value(s).

FEATURES

The key features of the FBM237 are:

• Eight 20 mA DC analog output channels
• Each output channel is galvanically isolated
• Single or redundant modules
• Rugged design suitable for enclosure in Class G3 (harsh) environments
• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the FBM237

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