FBM212

Basic Information

Model: FBM212（Part No.: P0914XL / RH914XL）

Manufacturer: Foxboro / Schneider Electric

System: I/A Series DCS, Compact 200 Series I/O

Type: 14-Channel Isolated Thermocouple/mV Differential Input Module

Status: In service, supports redundancy and hot swap

Application: Industrial temperature measurement (chemical, power, oil & gas)

Foxboro FBM212 模块

Specifications

Input Channels

Quantity: 14 differential isolated thermocouple/mV input channels + 1 RTD cold-junction compensation channel

Signal Types:

Thermocouple: B, E, J, K, N, R, S, T (isolated, non-grounded only)

mV: -10.5 ~ +69.5 mV DC

Input Impedance: 10 MΩ (differential)

Isolation: Channel-to-ground galvanic isolation (600 VAC for 1 minute); channel-to-channel non-isolated

Accuracy (at 25°C)

mV Input: ±0.03% of span (±27 μV)

Thermocouple: ±0.25°C conformity

RTD Reference: ±0.25°C conformity; ±0.50°C measurement accuracy

Temperature Coefficient: ±50 ppm/°C

A/D Conversion

Type: Multiplexed Σ-Δ (sigma-delta)

Update Rate: Configurable, minimum 500 ms

Filtering: Configurable integration period for noise rejection (50/60 Hz)

Power

Supply: 24 VDC (redundant), -10% ~ +5%

Consumption: ≤ 3 W

Environmental

Operating Temp: -20°C ~ +70°C

Storage Temp: -40°C ~ +70°C

Humidity: 5%–95% non-condensing

Rating: ISA S71.04 Class G3 (harsh environment)

Physical

Dimensions: 114 × 45 × 102 mm (H×W×D)

Weight: 284 g (approx.)

Mounting: 200 Series baseplate (DIN rail / 19” rack)

Key Features

14-Channel T/C or mV Input: High-density temperature/mV acquisition.

Built-in Cold-Junction Compensation: Termination assembly-integrated 100Ω Pt RTD (IEC 751 Class B) for accurate cold-junction sensing.

Thermocouple Burnout Detection: Up-scale indication on open circuit.

High Noise Rejection: Σ-Δ ADC with configurable filters for industrial EMI.

Redundancy & Hot Swap: Supports redundant Fieldbus and online replacement.

Robust Construction: Extruded aluminum housing for harsh environments.

Compatible Accessories

Termination Assembly (TA): RH916BV (14-channel, compression terminals)

Cables: RH916FG (0.5m) / RH916FH (1m) / RH916FJ (3m) / RH916FK (5m) / LSZH options available

Application Notes

Use for: Non-grounded thermocouples or mV transmitters.

Do not use for: Grounded thermocouples (use FBM202 instead).

Typical Loops: Furnace, reactor, boiler, and turbine temperature monitoring.