NI-9266 Specifications

NI-9266 Nomenclature

In this article, the NI-9266 with screw terminal and NI-9266 with DSUB are referred to inclusively as the NI-9266.

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 for the range -40 °C to 70 °C unless otherwise noted. All voltages are relative to COM unless otherwise noted.

NI-9266 Pinout



Table 1. Signal Descriptions
Signal Description
AO Analog output signal connection
COM Common reference connection to isolated ground
NC No connection
Vsup Voltage supply connection

Output Characteristics

Number of channels

8 analog output channels

DAC resolution

16 bits

Type of DAC

String

Power-on output state

0

Startup current

0.0 mA

Power-down current

0.0 mA

Full-scale output current

Minimum

20.3 mA

Typical

20.77 mA

Maximum

21.2 mA

Output range

0 mA to 20 mA

Compliance voltage[1]1 The maximum voltage a current source can provide to the load.

12 V DC maximum

Maximum load

600 Ω

Table 2. Accuracy
Measurement Conditions Percent of Reading (Gain Error) Percent of Range[2]2 Range equals 0 mA to 20.77 mA. (Offset Error)
Calibrated Maximum (-40 °C to 70 °C) 0.27% 0.36%
Typical (25 °C, ±5 °C) 0.035% 0.02%
Uncalibrated[3]3 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) 0.76% 1.4%
Typical (25 °C, ±5 °C) 0.2% 0.64%
Stability

Gain drift

35 ppm/°C

Offset drift

47 ppm/°C

External power supply voltage range (Vsup-to-COM)

9 V DC to 30 V DC

Protection (AO-to-COM, Vsup-to-COM)

Overvoltage

±36 V

Short-circuit

Indefinitely

Table 3. Update Time
Number of Channels Update Time for R Series Expansion Chassis Update Time for Any Other Chassis
One 7.5 μs 6 μs
Four 26.5 μs 21.5 μs
Eight 51.5 μs 41.5 μs

Noise

600 nA RMS

Crosstalk

-90 dB

Settling time (to 1 LSB)

Full-scale step

1 ms

1 mA step

40 μs

Glitch energy

Unmeasurable

Monotonicity

16 bits

DNL

1 LSB maximum

INL

±16 LSB

External power supply fault response time

100 ms

Open Current Loop response time

2.5 ms

Power Requirements

Power consumption from chassis

Active mode

230 mW maximum

Sleep mode

25 μW maximum

Thermal dissipation (at 70 °C)

Active mode

1.5 W maximum

Sleep mode

10 mW maximum

Power consumption from external power supply

Active mode

3.1 W maximum[4]4 When the NI-9266 outputs 20 mA into a 600 Ohms user load on all eight channels, 1.92 W are dissipated at the user load.

Sleep mode

20 mW

Physical Characteristics

Weight

NI-9266 with screw terminal

147 g (5.2 oz)

NI-9266 with DSUB

151 g (5.3 oz)

Screw terminal wiring

Gauge

0.05 mm2 to 0.82 mm2 (30 AWG to 18 AWG) copper conductor wire

Wire strip length

5 mm to 6 mm (0.20 in. to 0.24 in.) of insulation stripped from the end

Temperature rating

90 °C minimum

Torque for screw terminals

0.20 N · m to 0.25 N · m (1.8 lb · in. to 2.2 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 1.0 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.3 N · m to 0.4 N · m (2.7 lb · in. to 3.5 lb · in.)

NI-9266 with DSUB Safety Voltages

Connect only voltages that are within the following limits.

AO-to-COM and Vsup-to-COM

±36 V DC maximum

Isolation

Channel-to-channel

None

Channel-to-earth ground

Continuous

60 V DC,Measurement Category I

Withstand up to 3,000 m

1,000 V RMS, verified by a 5 s dielectric withstand test

Withstand up to 5,000 m

860 V RMS

Caution Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.
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.

NI-9266 with Screw Terminal Safety Voltages

Connect only voltages that are within the following limits:

AO-to-COM and Vsup-to-COM

±36 V DC maximum

Isolation

Channel-to-channel

None

Channel-to-earth ground, Vsup-to-earth ground, or COM-to-earth ground

Continuous

250 V RMS, Measurement Category II

Withstand up to 3,000 m

3,000 V RMS, verified by a 5 s dielectric withstand test

Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe.

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-9266 with screw terminal

3,000 m

NI-9266 with DSUB

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.

Calibration

You can obtain the calibration certificate and information about calibration services for the NI-9266 at ni.com/calibration.

Calibration interval

1 year

1 The maximum voltage a current source can provide to the load.

2 Range equals 0 mA to 20.77 mA.

3 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.

4 When the NI-9266 outputs 20 mA into a 600 Ohms user load on all eight channels, 1.92 W are dissipated at the user load.