Foxboro FBM202 Thermocouple/mV Input Module

Description

Foxboro FBM202 Thermocouple/mV Input Module supports eight isolated and independent thermocouple/mV input channels and provides reference junction temperature compensation via a 100 ohm platinum RTD.

Input Characteristics

• Channels: 8 isolated and independent thermocouple/mV input channels, 1 reference junction temperature compensation channel

• Input Range:

• -10.5 to +69.5 mV DC (equivalent to 0 to 64000 raw counts)

• Input of 71.419 mV equals 65535 raw counts (full range of module)

• Reference Junction: 4-wire 100 ohm platinum RTD (IEC 751, Class B)

Accuracy

• Millivolt Input: ±0.03% of span (±27 µV) at 25°C

• RTD Channel: ±0.03% of span

• RTD Reference Junction Conformity: ±0.25°C

• Thermocouple Conformity: ±0.25°C

• Accuracy Temperature Coefficient: ±50 ppm/°C

• RTD Reference Junction Measurement Accuracy: ±0.50°C (when using Foxboro supplied termination assemblies)

Input Impedance and Voltage

• Differential Input Impedance: 10 MΩ

• Common Mode Voltage: Up to 30 V AC or 60 V DC

Configuration

• Integration Period: Software configurable