FBM202 Foxboro Thermocouple Input Module

Foxboro FBM202 I/A Series 8-Channel Thermocouple Input Module

Foxboro FBM202 I/A Series 8-Channel Thermocouple Input Module

Availability: 10 left in stock

Foxboro F3-FBM202 FBM202 Thermocouple Input Module The Foxboro F3-FBM202, also cataloged as the FBM202 Thermocouple Input Module, operates as a...

SKU: FBM202

Manufacturer: Foxboro
Product No.: FBM202
Product Type: Analog Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Foxboro F3-FBM202 FBM202 Thermocouple Input Module

The Foxboro F3-FBM202, also cataloged as the FBM202 Thermocouple Input Module, operates as a dedicated hardware component for direct temperature measurement and signal digitization within Foxboro I/A Series and Foxboro Evo platforms.

Hardware Specifications

Parameter	Specification
Model	FBM202
Brand	Foxboro
Origin	USA
Weight	0.35 kg
Dimensions	45 x 105 x 115 mm
Operating Temp	-40 to +70 deg C
Power Consumption	7 W (Typical)
Input Channels	8 isolated and independent channels
Input Signals	Thermocouples and Millivolt (mV) inputs
Measurement Accuracy	+/-0.1% of span (Typical)
Resolution	16-bit A/D conversion
Isolation	Full channel-to-channel and channel-to-system isolation
Enclosure Protection	IP65 rating with G3 conformal coating
Power Input	24 VDC redundant input support

Cold Junction Compensation & Channel-to-Channel Isolation

The module provides galvanic channel-to-channel isolation across all 8 input circuits to suppress common-mode noise and eliminate ground loop interference on millivolt-level field signals. When coupled with a field termination assembly equipped with a Cold Junction Reference (CJR), internal firmware algorithms automatically execute cold junction compensation (CJC) and non-linear thermocouple linearization. This processing maintains accurate 16-bit analog-to-digital signal conversion across extreme ambient fluctuations without requiring intermediate 4-20 mA transmitters or external conditioning hardware.

Frequently Asked Questions

Q: Does the FBM202 require an external Cold Junction Reference (CJR) for thermocouple processing?

A: The module executes cold junction compensation automatically when wired to a compatible field termination assembly that incorporates an integrated CJR sensor element.

Q: What level of electrical isolation does the FBM202 provide between individual input channels?

A: The module features complete galvanic isolation between individual channels as well as between field-side input circuitry and the internal system backplane logic.

Q: Is the FBM202 capable of operating in redundant hardware configurations?

A: Yes, two FBM202 modules can be configured as a redundant pair on standard I/A Series baseplates to enable automatic failover protection without interrupting thermal data transfer.

Field Installation Guidelines

Seat the module directly into its designated slot on the I/A Series baseplate or rack frame, ensuring the retention latches engage firmly to establish reliable backplane bus connection. Ensure the field enclosure maintains an IP65 ingress protection level and that ambient temperatures remain within the rated -40 to +70 deg C operating window.

Connect all thermocouple and millivolt signal pairs to the corresponding field termination assembly using dedicated extension wire. Route low-voltage thermocouple wiring away from high-voltage AC cables and switching drive conduits to avoid electromagnetic noise induction. Ground overall cable shields at a single ground bus point on the cabinet frame to preserve 16-bit signal integrity across all 8 channels.

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Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Engineering Lead, Germany

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