Foxboro P0400YC FBM02 Thermocouple Input Module
$177.00
$350.00
Descrição
Overview
The P0400YC FBM02 is a temperature acquisition module designed for integration within Foxboro I/A Series distributed control systems. It specializes in capturing low-level millivolt signals and thermocouple inputs, converting them into high-resolution digital data for process control applications.
This module is engineered for precise temperature monitoring, featuring multiple isolated input channels and a dedicated reference junction compensation circuit. Its architecture ensures stable measurement performance even under fluctuating environmental conditions and electrical noise.
Technical Specifications
General Information
| Parameter | Specification |
|---|---|
| Model | P0400YC FBM02 |
| Manufacturer | Foxboro |
| Product Type | Thermocouple / mV Input Module |
| System Compatibility | Foxboro I/A Series DCS |
Input Configuration
| Parameter | Specification |
|---|---|
| Input Channels | 8 isolated thermocouple or mV inputs |
| Reference Channel | 1 isolated RTD channel for cold junction compensation |
| Supported Sensors | Thermocouples (B, E, J, K, S, T, N) and mV sources |
| Input Range | −10.5 mV to +71.4 mV DC |
Each channel operates independently with electrical isolation to prevent signal interference between measurement points.
Reference Junction Compensation
| Parameter | Specification |
|---|---|
| Internal Sensor | 100 Ω platinum RTD |
| External Option | 100 Ω platinum RTD (user-supplied) |
| Function | Cold junction compensation for thermocouple accuracy |
This dual-option design allows flexibility depending on installation and wiring requirements.
Measurement Accuracy & Performance
| Parameter | Specification |
|---|---|
| mV Accuracy | ±0.035% of span |
| Thermocouple Accuracy | ±0.25°C typical |
| RTD Accuracy | ±0.025% of span |
| Temperature Drift | ±25 ppm/°C |
| Reference Junction Accuracy | ±0.5°C |
The module maintains consistent accuracy across varying ambient conditions, supporting stable long-term operation.
Electrical Characteristics
| Parameter | Specification |
|---|---|
| Supply Voltage | 26–42 VDC (redundant input supported) |
| Power Consumption | ≤ 9 W |
| Heat Dissipation | ≤ 9 W |
| Isolation Rating | 600 VAC (channel-to-channel and ground, 1 minute) |
Communication Interface
| Parameter | Specification |
|---|---|
| Network | Redundant Foxboro Fieldbus |
| Diagnostic Feature | Open-input detection via low-level sensing voltage |
The module communicates with the control processor over a fault-tolerant Fieldbus, ensuring continuous system availability.
Mechanical & Installation Details
| Parameter | Specification |
|---|---|
| Dimensions | 115 × 115 × 45 mm |
| Weight | 1 kg |
| Mounting | Standard FBM baseplate |
| Terminal Options | Screw-clamp terminals or multi-pin connectors |
| Indicators | Status LEDs (power and communication) |
Flexible mounting and wiring options support various cabinet and field installation scenarios.
Key Features
-
Eight isolated thermocouple or millivolt input channels
-
Dedicated RTD reference junction for accurate compensation
-
Wide compatibility with standard thermocouple types
-
High-resolution, low-noise signal acquisition
-
Strong electrical isolation for reliable operation
-
Redundant Fieldbus communication
-
Designed for continuous operation in industrial environments
Applications
The P0400YC FBM02 is suited for temperature monitoring in process industries where measurement accuracy is critical. Typical deployments include chemical processing units, thermal power plants, oil refineries, and water treatment facilities. It is commonly used for furnace monitoring, reactor temperature control, and heat exchanger supervision.
FAQ
Q: What types of sensors can be connected to P0400YC FBM02?
A: It supports multiple thermocouple types as well as direct millivolt signal inputs.
Q: How is cold junction compensation handled?
A: The module includes an internal RTD sensor and also allows connection of an external RTD for improved flexibility.
Q: Are the input channels isolated?
A: Yes, each channel is electrically isolated to minimize interference and ensure measurement integrity.
Q: What is the communication method?
A: It uses the redundant Foxboro Fieldbus for reliable data transmission.
Q: Is it suitable for harsh environments?
A: Yes, the module is designed for industrial conditions with strong isolation and stable thermal performance.
Características
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