Foxboro FBM203 RTD Input Module – Overview
The Foxboro FBM203 is a high-precision RTD (Resistance Temperature Detector) input module designed for the Foxboro I/A Series Distributed Control System (DCS). It is widely used in industrial automation applications to accurately measure temperature signals from field sensors and convert them into digital data for process control.
Key Features
- 8 Independent RTD Input Channels
Provides eight fully isolated channels for simultaneous multi-point temperature measurement. - High Accuracy Measurement
Delivers precision up to ±0.03% of span, ensuring reliable temperature monitoring. - Multi-Sensor Compatibility
Supports Platinum, Nickel, and Copper RTDs, including:- Pt100 (DIN/IEC)
- Ni sensors
- Cu sensors
- Flexible Wiring Options
Compatible with:- 2-wire RTD
- 3-wire RTD
(4-wire supported in FBM203D variant)
- Galvanic Channel Isolation
Each channel is electrically isolated to eliminate ground loops and improve signal integrity. - Advanced Signal Conversion
Uses Sigma-Delta A/D conversion for high-resolution and noise-resistant measurements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Channels | 8 isolated RTD inputs |
| Input Range | 0–320 Ω (standard FBM203) |
| Accuracy | ±0.03% of span |
| Sensor Current | ~0.19 mA DC |
| Power Supply | 24 VDC |
| Power Consumption | ~3 W |
| Operating Temperature | –40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Conversion Method | Sigma-Delta |
Functions
- Temperature signal acquisition from RTD sensors
- Analog-to-digital signal conversion
- Data transmission via fieldbus to control processors
- Continuous temperature monitoring and alarm support
Applications
The FBM203 module is widely used in:
- Oil & Gas / Petrochemical plants
- Power generation systems
- Manufacturing & industrial automation
- Water & wastewater treatment
- Pharmaceutical and food processing industries
Advantages
- High reliability in harsh environments (G3-rated)
- Modular design for easy installation and maintenance
- Strong noise immunity (>125 dB common-mode rejection)
- Redundant fieldbus communication support
Conclusion
The Foxboro FBM203 RTD Input Module is a robust, high-accuracy temperature input solution for industrial DCS systems. With its multi-channel isolation, flexible sensor compatibility, and precise signal conversion, it is ideal for mission-critical process control applications requiring dependable temperature monitoring.
Main Brand:
ABB Allen-Bradley Alstom Bently GE MOOG
Schneider Woodward HIMA Honeywell Emerson Foxboro
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•Package: Original packing with cartons
Our Main Brand
ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc
—-(DCS)Distributed Control System
ABB 3AUA0000110429,SYSCON2 746924
Invensys Foxboro FBM214,FBM242,B0123HE
Invensys Triconex 3625,3700A,3604E
Woodword 5462-758B
HIMA F2-DO-16-02,F8650E
Yokogawa SAI143-S03 S1, F9342L-02
Honeywell 51402497-200,51403519-160,51199194-100,CC-PDO801
Emerson KJ4001X1-NB1,12P3368X012
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Rockwell AB 1734-IB8,1734-OB8,1769-L18ER-BB1B,1756-IM16I
ICS Triplex T8461,T8850,T8403,T8431,T8831,T8310
Schneider Modicon 140DDI85300
GE Fnauc IS210AEPSG2B,IS220UCSAH1A,IS215ACLEH1A,IS210AEAAH1B
Siemen 6ES7331-1KF02-0AB0
Prosoft MVI46-DFNT
Bachmann MPC240
Woodhead 9905-068 2301A
—-(TSI)Turbine Supervisory Instrumentation
Bently Nevada 3500/22M,138607-01,3500/25,3500/53,3500/32M 149986-02,
EPRO MMS6110,MMS6120,MMS6220,MMS6312,MMS6410,6423,6424,
ENTEK EK C6622HS,XM124,1440-SDM02-01RA
❓FAQ
Q:What is the earliest time when you can make delivery?
A:We will make delivery once received your payment.
Q:If the product can’t work, can it be returned?
A:We provide one year warranty.
Q:How easy is it to obtain items?
A:New are no longer continuously manufactured, and therefore supply is scarce.
However, at SAUL we specialize in sourcing hard-to-find products, and although
the lead time varies, the average is between 5-7 business days.
Q:What is the typical price for the items?
A:SAUL ELECTRIC always gives customers excellent service and prices that
are highly competitive.Requirements for delivery and availability do affect pricing.
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