Description
Foxboro FBM02
Technical Specifications
- Hardware Code: P0400YC
- Input Type: Thermocouple / Millivolt Input
- Input Channels: 8 independent, isolated channels
- Communication Protocol: Redundant 2 Mbps Module Fieldbus
Key Features
- Precision Thermocouple Measurement: Supports various thermocouple types (J, K, T, E, R, S, B, N) with high accuracy.
- Cold Junction Compensation: Built-in precision cold junction compensation to eliminate ambient temperature errors.
- Hot-Swappable Maintenance: Allows for safe, online module replacement.
- Integrated Diagnostics: Features comprehensive channel diagnostics for open/short circuit detection.
Application Scenarios
Extensively used in furnaces, boilers, reactors, and high-temperature process industries for accurate temperature monitoring and control.
Performance Parameters
- Operating Temperature: 0°C to 60°C
- Storage Temperature: -40°C to 85°C
- Power Supply: 24 VDC via backplane
- Protection Rating: IP20
Material Composition
Constructed with durable, flame-retardant industrial plastics and conformal-coated electronics for maximum environmental protection.
Structural Characteristics
Single-width 200 Series FBM form factor. Interfaces with the backplane via precision pins and connects to field thermocouples through a specific Terminal Assembly.
Operating Principle
Measures the low-level millivolt signal generated by the thermocouple, applies cold junction compensation using an internal temperature sensor, and converts the value to a temperature reading transmitted over the Module Fieldbus.
Installation Requirements
Mount on a compatible 200 Series baseplate. Ensure the control cabinet is well-ventilated. Use properly shielded and grounded thermocouple extension wires to prevent noise interference.
Usage Precautions
Ensure the thermocouple type and wiring polarity are correctly defined in the system configuration. Avoid routing thermocouple cables parallel to high-voltage power lines. Always observe standard ESD precautions during handling.
