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National Instruments NI 9214 Thermocouple temperature input module
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National Instruments · CompactDAQ and CompactRIO

NI 9214

The NI 9214 is a 16-channel C Series thermocouple input module for CompactDAQ and CompactRIO. Its TB-9214 isothermal terminal block supports cold-junction compensation.

ManufacturerNational Instruments
ModelNI 9214
Part Number781510-01
Product TypeThermocouple temperature input module
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Inputs16 thermocouple channels
Resolution24-bit
Input range±78.125 mV
Terminal connectionTB-9214 screw terminals
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Overview

Product overview

Key product information and technical features.

Designed for higher-channel-count temperature systems, the NI 9214 uses an autozero channel to compensate for offset error. The terminal-block layout minimizes thermal gradients.

Acquisition is scanned, not simultaneous. High-resolution and high-speed modes trade noise performance against acquisition speed.

  • TB-9214 incorporates three internal cold-junction compensation channels.
  • High-resolution mode rejects power-line noise.
  • Open-thermocouple detection circuitry identifies disconnected sensors.
Verified specifications

Technical data

Verified product specifications.

Thermocouple input channels16 channels
ADC resolution24 bits
ADC typeDelta-sigma
Sampling modeScanned
Voltage measurement range±78.125 mV
High-speed sample rate, all channels68; includes autozero and cold-junction compensation channels S/s
High-resolution sample rate, all channels0.96; includes autozero and cold-junction compensation channels S/s
Supported thermocouple typesJ, K, T, E, N, B, R, S
Operating temperature-40 to 70 °C
Channel-to-earth isolation250 Vrms
Condition & included items

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Included

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Compatibility

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National Instruments

Manufacturer

C Series

Modular I/O family

NI 9214

Thermocouple input module

System platforms

CompactDAQ and CompactRIO

Confirm the physical module label and TB-9214 presence before system integration; the catalog tag contains a conflicting part number.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-9214 Official Product PageProduct Page · ni.com
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NI 9214 and TB-9214 DatasheetDatasheet · download.ni.com
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Accuracy of NI 9214 Expressed in V and °CTechnical resource
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Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
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Related products

Alternatives & system components

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NI 9211View product →
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NI 9213View product →

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CompactDAQ

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is the NI 9214 a general-purpose ±10 V input module?

No. It is a thermocouple temperature input module with a ±78.125 mV measurement range.

Does the NI 9214 sample channels simultaneously?

No. It uses scanned acquisition through a shared ADC.

Which terminal block does it use?

It uses the TB-9214, which NI identifies as exclusively compatible with the NI-9214. Accessory inclusion for this catalog item has not been established.

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