NI-9222 Specifications

Connector Types

The NI-9222 has more than one connector type: NI-9222 with screw terminal and NI-9222 with BNC. Unless the connector type is specified, NI-9222 refers to both connector types.

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

  • Typical specifications describe the performance met by a majority of models.
  • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

Specifications are Typical unless otherwise noted.

Conditions

The following specifications are typical for the range -40 °C to 70 °C unless otherwise noted. All voltages are relative to the AI- signal on each channel unless otherwise noted.

Input Characteristics

Number of Channels

4 analog input channels

ADC resolution

16 bits

Type of ADC

Successive approximation register (SAR)

Input voltage ranges[1]1 Refer to the Safety Voltages section for more information about safe operating voltages., Measurement Voltage (AI+ to AI-)

Minimum[2]2 The minimum measurement voltage range is the largest voltage the NI-9222 is guaranteed to accurately measure.

±10.5 V

Typical

±10.6 V

Maximum

±10.7 V

Overvoltage protection

±30 V

Maximum Sampling Rate

CompactDAQ (NI-DAQmx)

500 kS/s

CompactRIO

FPGA User-Controlled I/O Sampling[3]3 FPGA User-Controlled I/O Sampling provides low level access to sample acquisition and transfer, and higher sample rates. Visit ni.com/info and enter the Info Code samplerate for information about FPGA User-Controlled I/O Sampling.

500 kS/s

FPGA I/O Nodes

300 kS/s

Table 1. Accuracy
Measurement Conditions Percent of Reading (Gain Error) Percent of Range[4]4 Range equals ±10.6 V. (Offset Error)
Calibrated Maximum (-40 °C to 70 °C) ±0.20% ±0.10%
Typical (23 °C ±5 °C) ±0.02% ±0.01%
Uncalibrated[5]5 Uncalibrated accuracy refers to the accuracy achieved when acquiring in raw or unscaled modes where the calibration constants stored in the module are not applied to the data. Maximum (-40 °C to 70 °C) ±0.40% ±0.40%
Typical (23 °C ±5 °C) ±0.20% ±0.10%
Stability

Gain drift

6 ppm/°C

Offset drift

29 μV/°C

CMRR (fin = 60 Hz)

100 dB

-3 dB bandwidth[6]6 -3 dB bandwidth for input amplitude at 10% of the input range.

500 kHz

Input impedance

>1 GΩ

Noise

0.75 LSB RMS

Total Harmonic Distortion (THD) (20 Vpp at 1 kHz)

-85 dB

Crosstalk (20 Vpp at 1 kHz)

-100 dB

Safety Voltages

Connect only voltages that are within the following limits:

Isolation
Channel-to-channel

Continuous

60 V DC, Measurement Category I

Withstand

1000 V RMS, verified by a 5 s dielectric withstand test

Channel-to-earth ground

Continuous

60 V DC, Measurement Category I

Withstand

1000 V RMS, verified by a 5 s dielectric withstand test

Measurement Category I

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Environmental Characteristics

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

NI-9222 with screw terminal

5,000 m

NI-9222 with BNC

5,000 m

Shock and Vibration
Operating vibration

Random

5 g RMS, 10 Hz to 500 Hz

Sinusoidal

5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.

Power Requirements

Power consumption from chassis

Active mode

1 W maximum

Sleep mode

5 mW maximum

Thermal dissipation (at 70 °C)

Active mode

1.3 W maximum

Sleep mode

430 mW maximum

Physical Characteristics

Dimensions

Visit ni.com/dimensions and search by module number.

Weight

NI-9222 with screw terminal

138 g (4.9 oz)

NI-9222 with BNC

165 g (5.8 oz)

Screw-terminal wiring

Gauge

0.05 mm2 to 1.5 mm2 (30 AWG to 14 AWG) copper conductor wire

Wire strip length

6 mm (0.24 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Torque for screw terminals

0.22 N · m to 0.25 N · m (1.95 lb · in. to 2.21 lb · in.)

Wires per screw terminal

One wire per screw terminal; two wires per screw terminal using a 2-wire ferrule

Ferrules

0.25 mm2 to 1.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

Calibration

You can obtain the calibration certificate and information about calibration services for the NI-9222 at ni.com/calibration.

Calibration interval

1 year

1 Refer to the Safety Voltages section for more information about safe operating voltages.

2 The minimum measurement voltage range is the largest voltage the NI-9222 is guaranteed to accurately measure.

3 FPGA User-Controlled I/O Sampling provides low level access to sample acquisition and transfer, and higher sample rates. Visit ni.com/info and enter the Info Code samplerate for information about FPGA User-Controlled I/O Sampling.

4 Range equals ±10.6 V.

5 Uncalibrated accuracy refers to the accuracy achieved when acquiring in raw or unscaled modes where the calibration constants stored in the module are not applied to the data.

6 -3 dB bandwidth for input amplitude at 10% of the input range.