FOXBORO,FBM203
FOXBORO,FBM203
FOXBORO,FBM203
FOXBORO,FBM203
FOXBORO,FBM203
FOXBORO,FBM203
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FBM203

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Foxboro FBM203 is an eight-channel isolated 2- or 3-wire RTD input module for resistance-temperature measurement in Foxboro DCS systems.
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Technical specifications for FBM203

  • Manufacturer:
    Invensys
  • Part Number:
    FBM203
  • Product Family:
    Foxboro
  • Product Type:
    Eight-Channel Isolated 2- or 3-wire RTD Input Module
  • Stock:
    1
  • RTD input channels:
    8, individually isolated
  • Resistance range:
    0 to 320 Ω
  • Supported sensor elements:
    Pt100 or Ni235 at 0°C
  • RTD connection:
    2- or 3-wire
  • Accuracy:
    ±0.03% of span
  • Temperature coefficient:
    ±50 ppm/°C
  • Sensor excitation:
    0.19 mA nominal
  • Lead resistance:
    Up to 50 Ω per lead
  • Common-mode rejection:
    >125 dB at 50/60 Hz
  • Normal-mode rejection:
    >95 dB at 50/60 Hz
  • Update rate:
    One new analog value every 25 ms
  • Power consumption / heat:
    3 W maximum
  • Termination cable:
    Type 1, up to 30 m
  • Module Fieldbus:
    Redundant 2 Mbps
  • Input power:
    24 VDC +5%, -10%
  • Operating temperature:
    -20 to +70°C
  • Storage temperature:
    -40 to +70°C
  • Relative humidity:
    5 to 95%, noncondensing
  • Contamination class:
    ISA-S71.04 Class G3
  • Dimensions:
    4.5 × 10.2 × 10.4 cm
  • Weight:
    0.284 kg
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals RTD Selection Termination & Leads Commissioning Application
  • Use FBM203 only for its documented FBM203 function and matched field signal type
  • Confirm the exact module order identity, termination assembly and cable before replacement
  • Preserve channel configuration, field wiring and diagnostics before removing FBM203

Foxboro FBM203 is an eight-channel isolated 2- or 3-wire RTD input module for resistance-temperature measurement in Foxboro DCS systems.

FBM203 is the functional FBM203 designation; RH914SV is the current module part number; RH916XJ / P0917JM / RH924WN is separate termination hardware.

Before replacement, verify the exact label, signal range, termination assembly, cable, channel configuration, field wiring and system compatibility.

Availability, condition, price, and shipping time for FBM203 are confirmed during quotation.

Foxboro FBM203 Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Select only the documented Pt100 or Ni235 at 0°C elements
  • Keep the 2- or 3-wire lead assignment exactly as wired
  • Confirm the 0 to 320 Ω channel range before energizing
  • Use the documented RH916XJ / P0917JM / RH924WN termination assembly
  • Retain the Type 1 identity and length
  • Keep shield, return and lead-compensation terminals with the loop record
  • Check several known resistance points on every used channel
  • Verify open-sensor and channel diagnostic behavior
  • Compare restored engineering values and alarms with the saved configuration
  • Isolated Pt100 or Ni235 at 0°C temperature measurement
  • Like-for-like RTD input retrofit with preserved wiring and scaling
  • Multi-point resistance-temperature monitoring requiring channel isolation
Description
Foxboro FBM203 is an eight-channel isolated 2- or 3-wire RTD input module for resistance-temperature measurement in Foxboro DCS systems.

It converts the documented field signals into isolated digital values for the I/A Series or EcoStruxure Foxboro DCS control database while reporting channel and module diagnostics.

Before installation, verify the exact order-number relationship, signal range, termination assembly, cable type, field power, grounding, saved configuration and baseplate compatibility.
Alternative Names
FBM203 FBM 203 Foxboro FBM203 Invensys FBM203 Invensys Foxboro FBM203 I/A Series FBM203
Technical notes
FBM203 identifies the FBM203 0 to 320 Ω RTD version; its current module part number is RH914SV. The current part must not be confused with the RH916XJ TA. Confirm sensor element, wire count, TA and cable before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can Foxboro FBM203 be used with both Pt100 and Ni235 RTDs?
Yes, when each channel is configured for the installed element and the 0 to 320 Ω range, wiring method and temperature conversion all match the sensor.
How should two-wire lead resistance be handled on Foxboro FBM203?
Two-wire resistance becomes measurement error unless it is accounted for by the engineered configuration; use three-wire sensing where the installation and sensor permit it.
Why can Foxboro FBM203 show a stable temperature offset after replacement?
Check RTD element selection, two- or three-wire terminal assignment, lead balance, saved scaling, terminal resistance and any calibration offset.
Which termination hardware belongs with Foxboro FBM203?
Confirm the installed RH916XJ, P0917JM or RH924WN arrangement and the correct Type 1 cable; terminal style and mounting must match the field wiring.
Can Foxboro FBM203 directly replace Foxboro FBM203B?
No. FBM203B uses a different resistance range and supported element set, so hardware identity, configuration and scaling must be reviewed.
What should be archived before removing Foxboro FBM203?
Save every RTD type, wire mode, range, scaling, filters, alarms and calibration values, plus the module, TA, cable and terminal-map identities.
How should Foxboro FBM203 be validated after installation?
Apply known resistances at multiple points on each used channel, verify lead compensation, engineering conversion, alarms and diagnostics, then compare live temperatures.

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