Foxboro I/A Series FBM237 P0914XS Output Module (Redundant Ready)

The key features of the FBM237:

• Eight 20 mA dc analog output channels
• Each output channel is galvanically isolated
• Single or redundant modules
• Compact, rugged design suitable for enclosure in Class G3 (harsh) environments
• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the FBM237 TA for use with Output Bypass Station to maintain outputs during maintenance operations
• 3-tier termination assembly for per channel internally and/or externally loop powered transmitters

The functional specifications for the FBM237:

• Output Channels:

  • Eight 20 mA dc analog output channels.
  • Each channel is isolated and independent.
  • Redundant pairs (output) are connected by a common field I/O connector and are not isolated from each other.

• Accuracy:

  • Analog (includes linearity): ±0.05% of Span (between 0.1 mA and 20 mA).
  • Accuracy temperature coefficient: ±50 ppm/°C.

• Output Load:

  • 750 Ω maximum.

• Output Processing Delay:

  • 30 ms maximum.

• Output Range (each channel):

  • 0 to 20.4 mA dc.

• Resolution:

  • 13 bits.

• Communication:

  • Communicates with its associated FCM or FCP via the module fieldbus.

• Power Requirements:

  • Input Voltage Range (Redundant):
    • 24 V dc +5%, -10%.
  • Consumption (Maximum):
    • 7 W (maximum) at 24 V dc.
  • Heat Dissipation (Maximum):
    • 5 W (maximum) at 24 V dc.

• Operating Conditions:

  • Temperature:
    • Module: -20 to +70°C (-4 to +158°F).
    • Termination Assembly:
      • PVC: -20 to +50°C (-4 to +122°F).
      • PA: -20 to +70°C (-4 to +158°F).
  • Relative Humidity:
    • 5 to 95% (non-condensing).
  • Altitude:
    • -300 to +3000 m (-1000 to +10,000 ft).

• Storage Conditions:

  • Temperature:
    • -40 to +70°C (-40 to +158°F).
  • Relative Humidity:
    • 5 to 95% (non-condensing).
  • Altitude:
    • -300 to +12,000 m (-1000 to +40,000 ft).

• Contamination:

  • Suitable for use in Class G3 (Harsh) environments as defined in ISA Standard S71.04, based on exposure testing according to EIA Standard 364-65, Class III.

• Vibration:

  • 7.5 m/s2 (5 to 500 Hz).

Dimensions specifications for the FBM237:

• Module:

  • Weight: Approximately 284 g (10 oz)
  • Height: 102 mm (4 in), 114 mm (4.5 in) including mounting lugs
  • Width: 45 mm (1.75 in)
  • Depth: 104 mm (4.11 in)

• Termination Assemblies:

  • Compression: Approximately 181 g (0.40 lb)
  • Ring Lug: Approximately 249 g (0.55 lb)