NI 9211

The NI 9211 is a four-channel C Series temperature input module with ±80 mV inputs and 24-bit resolution. It provides thermocouple signal conditioning with cold-junction compensation and open-thermocouple detection.

ManufacturerNational Instruments

ModelNI 9211

Part Number779001-01

Product TypeThermocouple temperature input module

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Inputs4 differential channels

Resolution24-bit

Input range±80 mV

Acquisition14 S/s aggregate; scanned

ConnectionScrew terminals

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Overview

Product overview

Key product information and technical features.

The NI 9211 fits CompactDAQ and CompactRIO chassis as a C Series thermocouple module. Its acquisition is scanned rather than simultaneous.

Cold-junction compensation for thermocouple measurements.
Open-thermocouple detection.
Anti-aliasing filters.
50 Hz and 60 Hz noise rejection.

Verified specifications

Technical data

Verified product specifications.

Thermocouple input channels	4 channels
ADC resolution	24 bits
ADC type	Delta-sigma
Sampling mode	Scanned
Voltage measurement range	±80 mV
Aggregate sampling rate	14 S/s
Conversion time	70 per channel; 420 for all channels including internal autozero and cold-junction channels ms
Supported thermocouple types	J, K, T, E, N, B, R, S
Channel-to-earth isolation	250 continuous, Measurement Category II Vrms
Channel-to-channel isolation	None
Operating temperature	-40 to 70 °C