NI cFP-RTD-122 Compact FieldPoint 8-Channel 16-Bit 3-Wire RTD Temperature Input Module

Technical Specifications

Model:cFP-RTD-122

Brand:NI

Part No:cFP-RTD-122

Product type:Compact FieldPoint 8-Channel 16-Bit RTD Temperature Input Module

Resolution:16-bit delta-sigma ADC

Channels:8 single-ended channels for 2-wire or 3-wire Pt RTD sensors

Measurement range:-200~850℃,0~400Ω resistance

Excitation current:0.25mA

Filter:50Hz/60Hz noise rejection

Overvoltage protection:2300Vrms transient withstand

Power consumption:0.35W

Dimension:109.5mm91.4mm25.4mm

Weight:0.11kg

Interface:Screw terminal I/O,Compact FieldPoint backplane connector

Operating temperature:-40℃ ~ +70℃

Storage temperature:-55℃ ~ +85℃

Relative humidity:10~90% non-condensing

Certification:CE,Class I Division 2

System compatibility

cFP-RTD-122 belongs to NI Compact FieldPoint platform.It works with cFP series backplanes and real-time controllers,supported by LabVIEW and NI FieldPoint drivers,widely used for industrial tank,pipe and furnace temperature monitoring.It is spare part for legacy automation equipment overhaul.

Function

cFP-RTD-122 is hot-swappable 8-channel RTD temperature input module for Compact FieldPoint system.It measures platinum RTD temperature signals,with built-in sensor linearization and 3-wire lead resistance compensation.Onboard self-diagnostics and engineering unit scaling,supports hot swap replacement without system shutdown.

Installation

Insert cFP-RTD-122 into Compact FieldPoint backplane,tighten captive mounting screws.Wire RTD sensor cables to front screw terminals.Take ESD protection before installation,supports hot swap operation.

Interface

‑Front screw terminal block for RTD sensor wiring

‑Compact FieldPoint backplane connector

‑POWER,READY and module status LED indicators

Feature

cFP-RTD-122 classic NI RTD temperature I/O module.Typical faults:terminal block corrosion,ADC circuit damage,backplane pin oxidation.Inspect terminals and test temperature reading before replacement.

Diagnostic

Fault phenomenon:temperature reading drift,intermittent signal,incorrect resistance value.Check wiring and terminal tightness,RTD sensor integrity,verify backplane communication and module status LED.

Product Brief

cFP-RTD-122 is NI Compact FieldPoint 8-channel 16-bit RTD temperature input module,supporting 2/3-wire platinum RTD measurement,built-in 50/60Hz noise filter,hot swappable,wide temperature range for industrial temperature acquisition.Mainly used for maintenance and replacement of old industrial automation equipment.ESD protection must be followed during handling.