Product Descriptions

NI-9203: 200 kS/s, ±20 mA, 8-Channel C Series Current Input Module

NI-9208: 500 S/s, ±20 mA, 16-Channel C Series Current Input Module

NI-9253: 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module

Physical Characteristics

Weight

NI-9203 with screw terminal

162 g (5.7 oz)

NI-9203 with spring terminal

150 g (5.3 oz)

NI-9208 with spring terminal

161 g (5.7 oz)

NI-9208 with DSUB

144 g (5.1 oz)

NI-9253 with spring terminal

158 g (5.6 oz)

Dimensions

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

NI-9203 with Screw Terminal

Screw terminal wiring

Gauge

0.2 mm2 to 2.5 mm2 (26 AWG to 14 AWG) copper conductor wire

Wire strip length

13 mm (0.51 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Torque for screw terminals

0.5 N · m to 0.6 N · m (4.4 lb · in. to 5.3 lb · in.)

Wires per screw terminal

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

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

NI-9203 with Spring Terminal

Spring terminal wiring

Gauge

0.2 mm2 to 2.5 mm2 (30 AWG to 12 AWG) copper conductor wire

Wire strip length

10 mm (0.39 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Wires per spring terminal

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

Ferrules

0.25 mm2 to 2.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

NI-9208 with Spring Terminal

Spring terminal wiring

Gauge

0.14 mm2 to 1.5 mm2 (26 AWG to 16 AWG) copper conductor wire

Wire strip length

10 mm (0.394 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Wires per spring terminal

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

Ferrules

0.14 mm2 to 1.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

NI-9253 with Spring Terminal

Spring terminal wiring

Gauge

0.14 mm2 to 1.5 mm2 (26 AWG to 16 AWG) copper conductor wire

Wire strip length

10 mm (0.394 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Wires per spring terminal

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

Ferrules

Single ferrule, uninsulated

0.14 mm2 to 1.5 mm2 (26 AWG to 16 AWG) 10 mm barrel length

Single ferrule, insulated

0.14 mm2 to 1.0 mm2 (26 AWG to 18 AWG) 12 mm barrel length

Two-wire ferrule, insulated

2x 0.34 mm2 (2x 22 AWG) 12 mm barrel length

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

Environmental

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Ingress protection

IP40

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Pollution Degree

2

Maximum altitude

NI-9203

5,000 m

NI-9208 with spring terminal

4,000 m

NI-9208 with DSUB

2,000 m

NI-9253

5,000 m

Indoor use only.

Hazardous Locations

Explosive atmospheres rating

Ex ec IIC T4 Gc

CCC certificate number

2021312310000312

Safety Guidelines

Operate the product only as described in this document.

  • 1378 Caution—This icon denotes a caution, which advises you to consult documentation where this symbol is marked.
  • 1378 Hazardous Voltage—This icon denotes a warning advising you to take precautions to avoid electrical shock with the product.
    • Caution Do not operate this product in a manner not specified in this document. Product misuse can result in a hazard. You can compromise the safety protection built into the product if the product is damaged in any way. If the product is damaged, return it to NI for repair.

    Safety Guidelines for Hazardous Voltages (Screw Terminal and Spring Terminal Products)

    If hazardous voltages are connected to the device, take the following precautions. A hazardous voltage is a voltage greater than 42.4 V peak voltage or 60 V DC to earth ground.

    You may connect signals which may be floating at hazardous voltages only to the products with screw terminal or spring terminal connectors. Do not connect signals which may be floating at hazardous voltages to the products with DSUB connectors.

    Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards.
    Caution All wiring must be insulated for the highest voltage used.
    Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same module.
    Caution Ensure that devices and circuits connected to the module are properly insulated from human contact.

    Safety Guidelines for Hazardous Locations

    These products have been evaluated as Ex ec IIC T4 Gc equipment and are CCC certified. Each product is suitable for use within ambient temperatures of -40 °C ≤ Ta ≤ 70 °C in either nonhazardous locations or Zone 2 hazardous locations. If you are using the products in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex ec IIC T4 Gc equipment.

    Follow these guidelines if you are installing the product in a potentially explosive environment. Not following these guidelines may result in serious injury or death.

    Caution Do not disconnect I/O-side wires or connectors unless power has been switched off or the area is known to be nonhazardous.
    Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous.
    Caution Substitution of components may impair suitability for Zone 2.
    Caution Transient protection shall be provided that is set at a level not exceeding 140% of the peak rated voltage value of 85 V at the supply terminals to the equipment.
    Caution The system shall only be used in an area of not more than Pollution Degree 2, as defined in IEC/EN 60664-1.
    Caution The system shall be mounted in a CCC-certified enclosure with a minimum ingress protection rating of at least IP54 as defined in GB/T3836.1.
    Caution The enclosure must have a door or cover accessible only by the use of a tool.

    Safety Voltages

    NI-9203

    Connect only voltages that are within the following limits:

    Maximum voltage, Channel-to-COM

    ±30 V DC maximum

    Channel-to-channel isolation

    None

    Channel-to-earth ground isolation
    Continuous

    up to 2,000 m altitude

    250 V RMS, Measurement Category II

    up to 5,000 m altitude

    60 V DC, Measurement Category I

    Withstand

    up to 2,000 m altitude

    2,300 V RMS, verified by a 5 s withstand test

    up to 5,000 m altitude

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

    Caution When using the product above 2,000 m, do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.
    Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV at any time.

    NI-9208 with Spring Terminal

    Connect only voltages that are within the following limits:

    Maximum voltage, Channel-to-COM

    ±30 V DC maximum

    Isolation

    Channel-to-channel

    None

    Channel-to-earth ground

    Continuous

    250 V RMS, Measurement Category II

    Withstand up to 4,000 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.

    NI-9208 with DSUB

    Connect only voltages that are within the following limits:

    Maximum voltage, Channel-to-COM

    ±30 V DC maximum

    Isolation

    Channel-to-channel

    None

    Channel-to-earth ground

    Continuous

    60 V DC, Measurement Category I

    Withstand up to 2,000 m

    1,000 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 II, III, or IV.

    NI-9253

    Connect only voltages that are within the following limits:

    AI-to-COM and Vsup-to-COM

    ±30 V DC maximum

    Channel-to-channel isolation

    None

    Channel-to-earth ground isolation[1]1 Channels include Vsup and COM.

    Continuous

    250 V RMS, Measurement Category II

    Withstand

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

    Overvoltage protection

    ±30 V, between any two pins of the connector[2]2 Only 1 channel at a time.

    Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV.

    Installing C Series Modules

    Verify that power is not connected to the I/O connector(s) on the C Series module.

    Removing C Series Modules

    Verify that power is not connected to the I/O connector(s) on the C Series module before you remove a module from the chassis.

    Safety Compliance and Hazardous Locations 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
    • IEC 60079-0, IEC 60079-7
    • GB/T3836.1, GB/T3836.3
    Note For safety certifications, refer to the product label or the Product Certifications and Declarations section.

    Product Certifications and Declarations

    To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.

    Worldwide Support and Services

    NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504, USA.

    1 Channels include Vsup and COM.

    2 Only 1 channel at a time.