Foxboro IGP10-A22D1F I/A Series Pressure Transmitter

CM400YK Foxboro FBM9 Thermocouple Millivolt Input Module

CM400YK Foxboro FBM9 Thermocouple Millivolt Input Module

Availability: 10 left in stock

Product Overview The Foxboro CM400YK (FBM9) functions as a high-precision interface between field-mounted thermocouples/millivolt sources and the I/A Series Distributed Control System...

SKU: FBM9 CM400YK

Manufacturer: Foxboro
Product No.: FBM9 CM400YK
Product Type: Temperature Monitoring Systems
Product Origin: USA
Payment:T/T, Western Union
Weight: 1200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Foxboro CM400YK (FBM9) functions as a high-precision interface between field-mounted thermocouples/millivolt sources and the I/A Series Distributed Control System (DCS). This 8-channel module converts low-level analog signals into digital values, providing essential data for furnace control, turbine exhaust monitoring, and chemical reactor safety. By integrating advanced filtering and Cold Junction Compensation (CJC), the CM400YK ensures superior thermal measurement accuracy in electrically noisy industrial environments.

Technical Specifications

Parameter	Details
Product Type	Thermocouple/Millivolt Input Module (FBM9)
Part Number	CM400YK
Input Channels	8 Isolated Channels
Supported TC Types	J, K, T, E, R, S, B, N
Millivolt Range	Various low-level mV ranges
Isolation	Channel-to-channel and channel-to-bus
Cold Junction Comp	Internal or External (Software Selectable)
Communication	Redundant Fieldbus Interface
Operating Temp	–20 °C to +70 °C
Weight	1.2 kg
Condition	100% Brand New Original

Engineering Advantages

Advanced Signal Conditioning: The CM400YK features high-resolution Analog-to-Digital conversion. It filters out electromagnetic interference (EMI) typically found near heavy industrial motors or switchgear, delivering a clean signal to the control logic.
Precision Cold Junction Compensation: The module automatically compensates for temperature variations at the terminal junction. This eliminates measurement drift caused by fluctuating cabinet temperatures, ensuring consistent process stability.
High-Density Channel Isolation: Individual channel-to-channel isolation prevents "cross-talk" and protects the DCS backplane from field-side electrical surges. If one thermocouple shorts or grounds, the remaining seven channels continue to operate without loss of accuracy.
Redundant Data Paths: The CM400YK utilizes a redundant Fieldbus interface. This ensures that the control system continues to receive critical temperature data even if a primary communication link fails, supporting 24/7 mission-critical operations.
Maintenance Without Interruption: The hot-swappable design allows engineers to replace modules while the system is live. Diagnostic LEDs on the front panel immediately pinpoint module health and communication status, streamlining troubleshooting.

FAQs

1. Does the CM400YK support different thermocouple types on the same module?

Yes. You can configure each of the 8 channels independently via the I/A Series software. This flexibility allows you to mix Type K, Type J, or Millivolt inputs on a single FBM9 module, reducing hardware footprint and costs.

2. How does the module handle a broken thermocouple wire?

The CM400YK includes built-in open-circuit detection. When the module senses a broken wire or high resistance in the loop, it triggers a diagnostic alarm in the DCS, allowing operators to move the control loop to a safe state immediately.

3. Is this product compatible with existing FBM baseplates?

The CM400YK mounts to standard Foxboro FBM baseplates (DIN rail or panel mount). Ensure your baseplate supports the required field terminal assembly (FTA) or termination cable designed for millivolt/thermocouple signals to maintain measurement accuracy.

4. Is the unit offered as "Refurbished" or "New"?

We provide this Foxboro CM400YK as a 100% Brand New original unit. It ships in original factory packaging to ensure all seals and technical specifications remain intact for critical industrial deployment.

What's clients say about us

Excellent Emergency Support!

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.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.