Foxboro|FBM203 RH914SV| Fieldbus Module
Description
The FBM203 RH914SV is a Fieldbus Module (FBM) in the Foxboro™ DCS system, designed to interface with resistance temperature detectors (RTDs). It provides eight galvanically isolated input channels for 2- or 3-wire RTD sensors. The module supports a resistance range of 0 to 320 ohms and performs signal conversion for electrical input signals from field sensors to the optionally redundant fieldbus.
Features
- Eight RTD Input Channels: Each channel is galvanically isolated.
- Supports 2- or 3-Wire RTD Sensors: Within a 0 to 320 ohm resistance range.
- High Accuracy: Achieved using sigma-delta data conversions, providing new analog input values every 25 ms.
- Configurable Integration Period: To remove process noise and power line frequencies.
- Rugged Design: Suitable for Class G3 (harsh) environments, per ISA Standard S71.04.
- Visual Indicators: Red and green LEDs for status indications.
- Easy Removal/Replacement: Mounts on a DIN rail or rack-mounted modular baseplate, accommodating up to four or eight FBMs.
- Fieldbus Communication: Interfaces with redundant 2 Mbps module Fieldbus, accepting communication from either path (A or B).
- Termination Assemblies: Available as DIN rail mounted or baseplate-mounted TAs, supporting various wiring sizes and types.
Technical Specifications
- Input Range: 0 to 320 ohms (320 ohms equals 64,000 counts; minimum overrange value is 327.675 ohms at 65,535 counts).
- Sensor Current: 0.19 mA DC nominal.
- Lead Resistance: Maximum 50 ohms per lead; imbalance in extension leads decreases accuracy.
- Analog Accuracy: ±0.03% of span.
- Accuracy Temperature Coefficient: ±50 ppm/°C.
- Common Mode Rejection: >125 dB at 50 or 60 Hz.
- Normal Mode Rejection: >95 dB at 50 or 60 Hz.
- Input Signal A/D Conversion: Independent sigma-delta conversion technique.
- Integration Period: Software configurable.
-
Typical Resistance Temperature Sensors:
- Platinum (DIN, SAMA, IEC): 100 ohms nominal at 0°C.
- Nickel (SAMA): 235 ohms nominal at 0°C.
- Weight: 284 g (10 oz) approximate.
-
Dimensions:
- 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 Cables:
- Cable Lengths: Up to 30 m (98 ft).
- Materials: Polyurethane or Low Smoke Zero Halogen (LSZH).
- Connection Types:
- FBM Baseplate End: 37-pin D-subminiature.
- Termination Assembly End (Compact FBM203/b/c): 25-pin D-subminiature.
-
Field Termination Connections:
- DIN Rail TA Compression:
- Solid/Stranded/AWG: 0.2 to 4 mm²/0.2 to 2.5 mm²/24 to 12 AWG.
- Stranded with Ferrules: 0.2 to 2.5 mm² with or without plastic collar.
- Baseplate Mounted TA Compression:
- Solid/Stranded/AWG: 0.2 to 1.5 mm²/0.2 to 1.5 mm²/24 to 16 AWG.
- DIN Rail TA Compression:
Foxboro|FBM203 RH914SV| Fieldbus Module
Foxboro|FBM203 RH914SV| Fieldbus Module
Description
The FBM203 RH914SV is a Fieldbus Module (FBM) in the Foxboro™ DCS system, designed to interface with resistance temperature detectors (RTDs). It provides eight galvanically isolated input channels for 2- or 3-wire RTD sensors. The module supports a resistance range of 0 to 320 ohms and performs signal conversion for electrical input signals from field sensors to the optionally redundant fieldbus.
Features
- Eight RTD Input Channels: Each channel is galvanically isolated.
- Supports 2- or 3-Wire RTD Sensors: Within a 0 to 320 ohm resistance range.
- High Accuracy: Achieved using sigma-delta data conversions, providing new analog input values every 25 ms.
- Configurable Integration Period: To remove process noise and power line frequencies.
- Rugged Design: Suitable for Class G3 (harsh) environments, per ISA Standard S71.04.
- Visual Indicators: Red and green LEDs for status indications.
- Easy Removal/Replacement: Mounts on a DIN rail or rack-mounted modular baseplate, accommodating up to four or eight FBMs.
- Fieldbus Communication: Interfaces with redundant 2 Mbps module Fieldbus, accepting communication from either path (A or B).
- Termination Assemblies: Available as DIN rail mounted or baseplate-mounted TAs, supporting various wiring sizes and types.
Technical Specifications
- Input Range: 0 to 320 ohms (320 ohms equals 64,000 counts; minimum overrange value is 327.675 ohms at 65,535 counts).
- Sensor Current: 0.19 mA DC nominal.
- Lead Resistance: Maximum 50 ohms per lead; imbalance in extension leads decreases accuracy.
- Analog Accuracy: ±0.03% of span.
- Accuracy Temperature Coefficient: ±50 ppm/°C.
- Common Mode Rejection: >125 dB at 50 or 60 Hz.
- Normal Mode Rejection: >95 dB at 50 or 60 Hz.
- Input Signal A/D Conversion: Independent sigma-delta conversion technique.
- Integration Period: Software configurable.
-
Typical Resistance Temperature Sensors:
- Platinum (DIN, SAMA, IEC): 100 ohms nominal at 0°C.
- Nickel (SAMA): 235 ohms nominal at 0°C.
- Weight: 284 g (10 oz) approximate.
-
Dimensions:
- 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 Cables:
- Cable Lengths: Up to 30 m (98 ft).
- Materials: Polyurethane or Low Smoke Zero Halogen (LSZH).
- Connection Types:
- FBM Baseplate End: 37-pin D-subminiature.
- Termination Assembly End (Compact FBM203/b/c): 25-pin D-subminiature.
-
Field Termination Connections:
- DIN Rail TA Compression:
- Solid/Stranded/AWG: 0.2 to 4 mm²/0.2 to 2.5 mm²/24 to 12 AWG.
- Stranded with Ferrules: 0.2 to 2.5 mm² with or without plastic collar.
- Baseplate Mounted TA Compression:
- Solid/Stranded/AWG: 0.2 to 1.5 mm²/0.2 to 1.5 mm²/24 to 16 AWG.
- DIN Rail TA Compression: