NI 9213 Spring, 16-ch TC, 24-bit, 75 S/s AI module (785185-01)

16-Channel, 75 S/s Aggregate, ±78 mV C Series Temperature Input Module
The NI‑9213 is a high-density thermocouple input module that is designed for higher channel count systems. With this module, you can add thermocouples to mixed-signal test systems without taking up too many slots. The NI‑9213 includes anti-aliasing filters, open-thermocouple detection, and cold-junction compensation for high-accuracy thermocouple measurements. The NI‑9213 features NIST‑traceable calibration and a channel‑to‑earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range.

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Key product
Input Characteristics
Number of channels16 thermocouple channels, 1 internal autozero channel, 1 internal cold-junction compensation channelADC resolution

24 bits

Type of ADC

Delta-Sigma

Sampling mode

Scanned

Voltage measurement range

±78.125 mV

Temperature measurement ranges

Works over temperature ranges defined by NIST (J, K, T, E, N, B, R, S thermocouple types)
Common-mode voltage range
Channel-to-COM

±1.2 V minimum

COM-to-earth ground

±250 V

Common-mode rejection ratio
High-resolution mode (at DC and 50 Hz to 60 Hz)
Channel-to-COM

100 dB

COM-to-earth ground

>170 dB

High-speed mode (at 0 Hz to 60 Hz)
Channel-to-COM

70 dB

COM-to-earth ground

>150 dB

Input bandwidth
High-resolution mode

14.4 Hz

High-speed mode

78 Hz

High-resolution noise rejection (at 50 Hz and 60 Hz)

60 dB

Overvoltage protection

±30 V between any two inputs

Differential input impedance

78 MΩ

Input current

50 nA

Environmental Characteristics
Temperature
Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

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