cFP-TC-125

National Instruments Compact FieldPoint Thermocouple Input Module

General Description

Part Number

Key Specifications

• Channels: 8 differential input channels

• Isolation: 250 Vrms channel-to-channel isolation; 2300 Vrms bank-to-backplane isolation

• Supported Thermocouple Types: J, K, T, N, E, B, R, S

• Input Voltage Range: -20 mV to +80 mV

• Resolution: 16-bit delta-sigma ADC

• Cold Junction Compensation: Onboard high accuracy CJC

• Linearization: Compliant with NIST-90 standard

• Filtering: Built-in digital noise rejection for 50 Hz / 60 Hz interference

• Update Rate: Approximately 1 Hz per channel

• Connection: 37-pin D-Sub interface, compatible with cFP-CB-1 and cFP-CB-3 terminal bases

• Power Consumption: 300 mW typical from backplane

• Operating Temperature: -40 °C to +70 °C

• Certifications: CE, UL, CSA, FM hazardous location certified

Main Features

• Channel-to-channel isolated design eliminates ground loops and crosstalk

• Compatible with all common industrial thermocouple types for wide temperature measurement ranges

• Integrated cold junction compensation removes need for external compensation blocks

• Onboard linearization outputs direct engineering temperature units

• Excellent power frequency noise suppression for stable readings in industrial environments

• Hot-swappable and plug-and-play compatible with Compact FieldPoint backplanes

• Built-in diagnostics for open sensor detection and fault indication

Applications

• Industrial process temperature monitoring and control

• Furnace, oven, boiler and thermal equipment temperature measurement

• Factory automation, pharmaceutical and food processing thermal monitoring

• Environmental testing chambers and material thermal testing

• Maintenance and retrofit of legacy Compact FieldPoint temperature systems