sbRIO-9218 Specifications

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Updated2025-10-07
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sbRIO-9218 Specifications

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

Specifications are valid under the following conditions unless otherwise noted.

-40 °C to 70 °C

sbRIO-9218 Pinout

Use the pinout to connect to terminals on the sbRIO-9218.

Table 1. Signals by Measurement Type
Mode	Pin
Mode	1	2	3	4	5	6	7	8	9
±16 V	EX+	—	AI-, EX-	—	—	AI+	—	—	—
±65 mV	EX+ ¹ Optional sensor excitation.^[1]	—	EX- ^[1]	—	—	AI+	AI-^[2]² Tie to pin 3.	—	—
Full-Bridge	EX+ ^[1]	—	EX- ^[1]	RS+	RS-	AI+	AI-	SC	SC
IEPE	—	AI+	AI-	—	—	—	—	—	—
TEDS	—	T+ ^[3]³ TEDS Class 1 data connection.	T-	—	—	—	—	—	—

Table 2. Signal Descriptions
Signal	Description
AI+	Positive analog input signal connection
AI-	Negative analog input signal connection
EX+	Positive sensor excitation connection
EX-	Negative sensor excitation connection
RS+	Positive remote sensing connection
RS-	Negative remote sensing connection
SC	Shunt calibration connection
T+	TEDS data connection
T-	TEDS return connection

General Characteristics

Number of channels

2 analog input channels

ADC resolution

24 bits

Type of ADC

Delta-Sigma

Sampling mode

Simultaneous

TEDS support

IEEE 1451.4 TEDS Class 1

Internal master timebase (f_M)
Frequency	13.1072 MHz
Accuracy	100 ppm

Figure 1. Data Rates

\frac{f_{M} \div 256}{n}, n = 1, 2, ..., 31

\frac{f_{M} \div 256}{n}, n = 1, 2, ..., 31

Data rate range (f_s) using internal master timebase
Minimum	1.652 kS/s
Maximum	51.2 kS/s

Data rate range (f_s) using external master timebase
Minimum	1 kS/s
Maximum	51.367 kS/s

Overvoltage protection
Pin 2 to Pin 3	-20 V to 30 V
Any other pin-to-pin	±30 V

Note Be aware when processing acquisitions that include full-scale data. Full-scale data readings indicate that an over-range has occurred in the analog front-end.

±16 V Characteristics

Input coupling

Measurement range
Typical	±16.3 V
Minimum	±16.0 V

Table 3. ±16 V Accuracy
Measurement Conditions		Gain Error	Offset Error
Calibrated	Typical, 23 °C ±5 °C	0.08%	0.70 mV
Calibrated	Maximum, -40 °C to 70 °C	0.20%	9 mV
Uncalibrated^[4]⁴ 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.	Typical, 23 °C ±5 °C	1.2%	50 mV
	Maximum, -40 °C to 70 °C	2.0%	70 mV

Gain drift

15 ppm/°C

Offset drift

32 μV/°C

Integral non-linearity (INL)

150 μV

Input noise, RMS
51.2 kS/s	128 μV
25.6 kS/s	107 μV
4.27 kS/s	81 μV

Input impedance

390 kΩ

Input bandwidth, -3 dB

0.49 f _s

Flatness, DC-20 kHz, referred to 1 kHz
Typical	±30 mdB
Maximum	±50 mdB

Phase non-linearity, DC-20 kHz

0.30°

Input delay

(40 + [5/512])/f_s + 5.3 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -3 dBFS

-100 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, 1 V RMS

101 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz normal mode, full-scale aggressor	-109 dBFS

CMRR, 60 Hz 1 V RMS-to-earth ground

-120 dBFS

Powered sensor 12 V excitation

Voltage level

12 V ±5%

Voltage noise, RMS 100 kHz bandwidth

1 mV

Output current
Typical	50.5 mA
Minimum	46.5 mA

Settling Time (to 1 % of final value after enabling)

200 ms

±65 mV Characteristics

Input coupling

Measurement range
Typical	73.5 mV
Minimum	72 mV

Table 4. ±65 mV Accuracy
Measurement Conditions		Gain Error	Offset Error
Calibrated	Typical, 23 °C±5 °C	0.13%	8 μV
Calibrated	Maximum, -40 °C to 70 °C	0.20%	130 μV
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.	Typical, 23 °C±5 °C	1.2%	300 μV
	Maximum, -40 °C to 70 °C	2.0%	450 μV

Gain drift

10 ppm/°C

Offset drift

320 nV/°C

Input noise, RMS
51.2 kS/s	4.3 μV
25.6 kS/s	3 μV
4.27 kS/s	1.3 μV

Input impedance

>10 MΩ

Input bandwidth, -3 dB

0.49 f_s

Flatness, DC-20 kHz, referred to 1 kHz
Typical	-40 mdB to 0 mdB
Maximum	-150 mdB to 20 mdB

Phase non-linearity, DC-20 kHz

0.2°

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -1 dBFS

-95 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, -1 dBFS

95 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz normal mode, full-scale aggressor	-109 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-133 dBFS

Powered sensor 12 V excitation

Voltage level

12 V ±5%

Voltage noise, RMS 100 kHz bandwidth

1 mV

Output current
Typical	50.5 mA
Minimum	46.5 mA

Settling Time (to 1% of final value after enabling)

200 ms

Full-Bridge Characteristics

Input coupling

Measurement range
Typical	22.1 mV/V
Minimum	21.7 mV/V

Table 5. Full-Bridge Accuracy
Measurement Conditions			Gain	Offset
Measurement Conditions			Gain	Without Offset Null	≤ 90 days, ±5 °C from Offset Null
Calibrated	3.3 V Excitation	Typical, 23 °C ±5 °C	0.10%	2.4 μV/V	0.5 μV/V
	3.3 V Excitation	Maximum -40 °C to 70 °C	0.20%	40 μV/V	5 μV/V
	2 V Excitation	Typical, 23 °C ±5 °C	0.10%	30 μV /V	0.8 μV/V
	2 V Excitation	Maximum -40 °C to 70 °C	0.20%	87 μV/V	8 μV/V
Uncalibrated^[6]⁶ 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.	3.3 V Excitation	Typical, 23 °C±5 °C	1.2%	100 μV/V	—
	3.3 V Excitation	Maximum -40 °C to 70 °C	2.0%	150 μV/V	—
	2 V Excitation	Typical, 23 °C±5 °C	1.2%	120 μV/V	—
	2 V Excitation	Maximum -40 °C to 70 °C	2.0%	200 μV/V	—

Gain drift

10 ppm/°C

Offset drift
3.3 V excitation	100 nV/V/°C
2 V excitation	160 nV/V/°C

Table 6. Input Noise, RMS
Excitation Voltage	Sample Rate
Excitation Voltage	4.27 kS/s	25.6 kS/s	51.2 kS/s
3.3 V	0.4 μV/V	1.0 μV/V	1.3 μV/V
2 V	0.7 μV/V	1.6 μV/V	2.1 μV/V

Differential input impedance

>10 MΩ

Input bandwidth, -3 dB

0.49 f_s

Flatness, DC-20 kHz, referred to 1 kHz
Typical	-40 mdB to 0 mdB
Maximum	-150 mdB to 20 mdB

Phase non-linearity, DC-20 kHz

0.2°

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -1 dBFS

-95 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, -1 dBFS

95 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz, normal mode, full-scale aggressor	-109 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-133 dBFS

Shunt calibration accuracy

50 kΩ ±0.2%

Strain excitation voltage
2 V level	2 V ±3%
3.3 V level	3.3 V ±3%

Output current
2 V level	17.8 mA
3.3 V level	10.1 mA

IEPE Characteristics

Input coupling

Measurement range
Typical	5.33 V
Minimum	5.0 V

Table 7. IEPE Accuracy
Measurement Conditions		Gain Error
Calibrated	Typical, 23 °C±5 °C	0.20% (0.017 dB)
Calibrated	Maximum, -40 °C to 70 °C	0.40% (0.034 dB)
Uncalibrated^[7]⁷ 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.	Typical, 23 °C±5 °C	1.7% (0.146 dB)
	Maximum, -40 °C to 70 °C	2.0% (0.172 dB)

Residual DC offset

<150 mV

Gain drift

25 ppm/°C

Input noise, RMS
51.2 kS/s	50 μV
25.6 kS/s	38 μV
4.27 kS/s	25 μV

Input impedance

300 kΩ

Input bandwidth, -3 dB

0.49 f_s

Flatness, 10 Hz-20 kHz, referred to 1 kHz
Typical	±25 mdB
Maximum	±40 mdB

Phase non-linearity, 100 Hz-20 kHz

0.25°

AC cutoff frequency, -3 dB

0.5 Hz

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -3 dBFS

-102 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, 1 V RMS

107 dB

Intermodulation Distortion (IMD), (CCIF 11 kHz/12 kHz)

-97 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz normal mode, full-scale aggressor	-109 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-122 dBFS

IEPE excitation current
Typical	2.2 mA
Minimum	2.1 mA

Compliance voltage
Typical	20.5 V
Minimum	19.5 V

If you are using an IEPE sensor, use the following equation to ensure that your configuration meets the IEPE compliance voltage range. This equation must resolve to 0 to 19.5.

Figure 2. IEPE Compliance Voltage Equation

V_{bias} \pm V_{full-scale}

V_{bias} \pm V_{full-scale}

where

$V_{bias}$
is the bias voltage of the IEPE sensor
$V_{full-scale}$
is the full-scale voltage of the IEPE sensor

±20 mA Characteristics

The ±20 mA measurement type requires the NI-9983 measurement-specific adapter. The characteristics are for the sbRIO-9218 used in conjunction with the NI-9983.

Input coupling

Measurement range
Typical	24.4 mA
Minimum	23.0 mA

Table 8. ±20 mA Accuracy
Measurement Conditions		Gain Error	Offset Error
Calibrated	Typical, 23 °C±5 °C	0.40%	5 μA
Calibrated	Maximum, -40 °C to 70 °C	0.60%	42 μA
Uncalibrated^[8]⁸ 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.	Typical, 23 °C±5 °C	1.5%	100 μA
	Maximum, -40 °C to 70 °C	2.0%	150 μA

Gain drift

35 ppm/°C

Offset drift

105 nA/°C

Shunt resistance

3.01 Ω

Input noise, RMS
51.2 kS/s	1.4 μA
25.6 kS/s	1.0 μA
4.27 kS/s	0.5 μA

Input impedance

45 Ω ±30%

Input bandwidth, -3 dB

0.49 f_s

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz normal mode, full-scale aggressor	-109 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-99 dBFS

Powered sensor 12 V excitation

Voltage level

12 V ±5%

Voltage noise, RMS, 100 kHz bandwidth

1 mV

Output current
Typical	50.5 mA
Minimum	46.5 mA

Settling Time (to 1% of final value after enabling)

200 ms

±60 V Characteristics

The ±60 V measurement type requires the NI-9987 measurement-specific adapter. The characteristics are for the sbRIO-9218 used in conjunction with the NI-9987.

Input coupling

Measurement range
Typical	±62.1 V
Minimum	±60 V

Table 9. ±60 V Accuracy
Measurement Conditions		Gain Error	Offset Error
Calibrated	Typical, 23 °C±5 °C	0.3%	3 mV
Calibrated	Maximum, -40 °C to 70 °C	0.6%	40 mV
Uncalibrated^[9]⁹ 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.	Typical, 23 °C±5 °C	1.3%	200 mV
	Maximum, -40 °C to 70 °C	2.0%	300 mV

Gain drift

30 ppm/°C

Offset drift

120 μV/°C

Integral non-linearity (INL)

15 mV

Input noise, RMS
51.2 kS/s	500 μV
25.6 kS/s	420 μV
4.27 kS/s	320 μV

Input impedance

1.49 MΩ

Input bandwidth, -3 dB

Lesser of 7 kHz or 0.49 f_s

Flatness, DC to 500 Hz, referred to DC, f_s ≥ 1.652 kS/s

0.2 dB

Input delay

(40 + [5/512])/f_s + 27.2 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 8 V RMS, 500 Hz

-80 dBc

Spurious-Free Dynamic Range (SFDR), 8 V RMS, 500 Hz

-80 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz, normal mode, full-scale aggressor	-70 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-89 dBFS

Half-Bridge Mode Characteristics

The half-bridge measurement type requires the NI-9986 measurement-specific adapter. The characteristics are for the sbRIO-9218 used in conjunction with the NI-9986.

Input coupling

Measurement range
Typical	22.1 mV/V
Minimum	21.7 mV/V

Table 10. Half-Bridge Accuracy
Measurement Conditions			Gain	Offset
Measurement Conditions			Gain	Without Offset Null	≤ 90 days, ±5 °C from Offset Null
Calibrated	3.3 V and 2 V excitation	Typical 23 °C±5 °C	0.10%	700 μV/V	45 μV/V
Calibrated	3.3 V and 2 V excitation	Maximum -40 °C to 70 °C	0.20%	1,000 μV/V	90 μV/V
Uncalibrated^[10]¹⁰ 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.	3.3 V and 2 V excitation	Typical 23 °C±5 °C	1.2%	800 μV/V	—
	3.3 V and 2 V excitation	Maximum -40 °C to 70 °C	2.0%	1.1 mV/V	—

Gain drift	10 ppm/°C
Offset drift	1.3 μV/V/°C

Table 11. Input Noise, RMS
Excitation Voltage	Sample Rate
Excitation Voltage	4.27 kS/s	25.6 kS/s	51.2 kS/s
3.3 V	0.4 μV/V	1.0 μV/V	1.3 μV/V
2 V	0.7 μV/V	1.6 μV/V	2.2 μV/V

Input bandwidth, -3 dB

0.49 f_s

Flatness, DC-20 kHz, referred to 1 kHz
Typical	-40 mdB to 0 mdB
Maximum	-150 mdB to 20 mdB

Phase non-linearity, DC-20 kHz

0.2°

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -1 dBFS

-95 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, -1 dBFS

95 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz, normal mode, full-scale aggressor	-85 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-73 dBFS

Strain excitation voltage
2 V level	2 V ±3%
3.3 V level	3.3 V ±3%

Output current
2 V level	17.8 mA
3.3 V level	10.1 mA

Quarter-Bridge Characteristics

The quarter-bridge measurement type requires the NI-9984 or NI-9985 measurement-specific adapter. The characteristics are for the sbRIO-9218 used in conjunction with the NI-9984 or the NI-9985.

Input coupling

Measurement range
Typical	22.1 mV/V
Minimum	21.7 mV/V

Table 12. Quarter-Bridge Accuracy
Measurement Conditions			Gain	Offset
Measurement Conditions			Gain	Without Offset Null	≤ 90 days, ±5 °C from Offset Null
Calibrated	3.3 V and 2 V excitation	Typical 23 °C±5 °C	0.10%	700 μV/V	45 μV/V
Calibrated	3.3 V and 2 V excitation	Maximum -40 °C to 70 °C	0.20%	1,000 μV/V	90 μV/V
Uncalibrated^[11]¹¹ 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.	3.3 V and 2 V excitation	Typical 23 °C±5 °C	1.2%	800 μV/V	—
	3.3 V and 2 V excitation	Maximum -40 °C to 70 °C	2.0%	1.1 mV/V	—

Gain drift

10 ppm/°C

Offset drift

1.3 μV/V/°C

Quarter-bridge completion resistance
NI-9984	120 Ω
NI-9985	350 Ω

Table 13. Input Noise, RMS
Excitation Voltage	Sample Rate
Excitation Voltage	4.27 kS/s	25.6 kS/s	51.2 kS/s
350 Ω, 3.3 V	0.4 μV/V	1.0 μV/V	1.3 μV/V
120 Ω, 2 V	0.7 μV/V	1.6 μV/V	2.2 μV/V

Input bandwidth, -3dB

0.49 f_s

Flatness, DC-20 kHz, referred to 1 kHz
Typical	-40 mdB to 0 mdB
Maximum	-150 mdB to 20 mdB

Phase non-linearity, DC-20 kHz

0.2°

Input delay

(40 + [5/512])/f_s + 3.9 μs

Stopband
Frequency	0.55 f_s
Rejection	100 dB

Alias-free bandwidth

0.45 f_s

Oversample rate

64 f_s

Rejection at oversample rate (f_s = 51.2 kS/s)

100 dB

Total Harmonic Distortion (THD), 1 kHz, -1 dBFS

-95 dBc

Spurious-Free Dynamic Range (SFDR), 1 kHz, -1 dBFS

95 dB

Crosstalk
60 Hz, 1 V RMS, common mode	-120 dBFS
1 kHz, normal mode, full-scale aggressor	-85 dBFS

CMRR, 60 Hz, 1 V RMS-to-earth ground

-73 dBFS

Strain excitation voltage
2 V level	2 V ±3%
3.3 V level	3.3 V ±3%

Output current
2 V level	17.8 mA
3.3 V level	10.1 mA

Safety Voltages

Isolation Voltages

Temporary Overvoltage—An overvoltage condition of a relatively long duration.

Isolation

Channel-to-channel, channel-to-Vsup inputs (up to 5,000 m)
Continuous	60 V DC, Measurement Category I
Withstand	1,000 V RMS, verified by a 5 s dielectric withstand test

Channel-to-earth ground (up to 3,000 m)
Continuous	60 V DC, Measurement Category I
Withstand	1,000 V RMS, verified by a 5 s dielectric withstand test

Channel-to-earth ground (up to 5,000 m)
Continuous	60 V DC, Measurement Category I
Withstand	860 V RMS

Vsup inputs-to-earth ground (up to 5,000 m)
Continuous	60 V DC, Measurement Category I
Withstand	1,000 V RMS, verified by a 5 s dielectric withstand test

Temporary overvoltage protection
Pin 2 to pin 3	-20 V to 30 V
Any other pin-to-pin	±30 V

Caution Any excitation output voltage to earth ground must remain below 60 V DC for each channel. To determine excitation output voltage to earth ground for a channel, add the maximum excitation voltage to the maximum potential on pin 3. The maximum excitation voltages are 2 V +3% and 3.3 V +3% for the bridge excitations, 12 V +5% for the +12 V excitation, and 22 V for the IEPE excitation.

Attention Toute tension d'excitation de sortie par rapport à la terre doit rester inférieure à 60 V CC pour chaque voie. Pour déterminer la tension d'excitation de sortie par rapport à la terre pour une voie, ajoutez la tension d'excitation maximale au potentiel maximal sur la broche 3. Les tensions d'excitation maximales sont de 2 V +3% et 3,3 V +3% pour les excitations de pont, 12 V +5% pour l'excitation +12 V, et 22 V pour l'excitation IEPE.

Measurement Category

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

Pollution Degree

Maximum altitude

5,000 m

Power Requirements

Module Power Requirements

Maximum power consumption from chassis
Active mode	900 mW maximum
Sleep mode	500 μW maximum

Maximum thermal dissipation, from -40 °C to 70 °C
Active mode	1.5 W maximum
Sleep mode	550 mW maximum

Vsup Power Requirements

Vsup input voltage range

9 V to 30 V

Maximum power consumption from Vsup
Active mode	2 W maximum
Sleep mode	400 mW maximum

Physical Characteristics

Connector type	DSUB
Weight	49.0 g (1.73 oz)

Compliance Standards

Safety Compliance Standards

This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

IEC 61010-1, EN 61010-1
UL 61010-1, CSA C22.2 No. 61010-1

Note For safety certifications, refer to the product label or the Product Certifications and Declarations section.

EMC Standards

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

EN 61326-1 (IEC 61326-1): Class A emissions; Industrial immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
AS/NZS CISPR 11: Group 1, Class A emissions
ICES-001: Class A emissions

Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.

Note In Europe, Australia, and New Zealand (per CISPR 11) Class A equipment is intended for use in non-residential locations.

Environmental Standards

This product meets the requirements of the following environmental standards for electrical equipment.

IEC 60068-2-1 Cold
IEC 60068-2-2 Dry heat

Calibration

You can obtain the calibration certificate and information about calibration services for the sbRIO-9218 at ni.com/calibration.

Calibration interval

2 years

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Engineering a Healthy Planet web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

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¹ Optional sensor excitation.

² Tie to pin 3.

³ TEDS Class 1 data connection.

⁴ 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.

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 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.

⁷ 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.

⁸ 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.

⁹ 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.

¹⁰ 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.

¹¹ 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.