National Instruments NI 9481E Operating Instructions Manual
National Instruments NI 9481E Operating Instructions Manual

National Instruments NI 9481E Operating Instructions Manual

National instruments electromechanical relay module operating instructions and specifications

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OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9481E
4-Channel SPST Electromechanical Relay Module

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Summary of Contents for National Instruments NI 9481E

  • Page 1 OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9481E 4-Channel SPST Electromechanical Relay Module...
  • Page 2 This document describes how to use the National Instruments 9481E and includes dimensions, terminal assignments, and specifications for the NI 9481E. Visit ni.com/info to determine which software you need for the modules you are using. For information about installing, configuring, and programming the system, refer to the system documentation.
  • Page 3 NI 9481E Dimensions The following figure shows the dimensions of the NI 9481E. 73.4 (2.89) 0.0 (0.00) Figure 1. NI 9481E Dimensions in Millimeters (Inches) © National Instruments Corp. NI 9481E Operating Instructions and Specifications...
  • Page 4 Connecting the NI 9481E The NI 9481E has a 10-terminal detachable screw-terminal connector that provides connections for four electromechanical relay channels. Figure 2. NI 9481E Terminal Assignments NI 9481E Operating Instructions and Specifications CH0a CH0b CH1a CH1b CH2a CH2b CH3a CH3b ni.com...
  • Page 5 Refer to the information about sleep mode. When connecting a load to the NI 9481E, connect the positive lead of the load to either the CHa or the CHb terminal, and the ground of the load to one of the leads of the power supply. Connect the remaining CHa or CHb terminal to the other lead of the power supply.
  • Page 6: Sleep Mode

    Note connection when connecting more than one wire to a single terminal on the NI 9481E. When the channel is turned on, the terminal connected to the load drives current or applies voltage to the load. When the channel is off, the terminal does not drive current or apply voltage to the load.
  • Page 7: Specifications

    All channels on ... 2 A max at 30 VDC, © National Instruments Corp. channels (SPST) 1 A max at 60 VDC, 4 A max at 250 V 1 A max at 60 VDC, 2 A max at 250 V NI 9481E Operating Instructions and Specifications...
  • Page 8 Electrical (connecting to load) ... 100,000 operations MTBF ... 460,321 hours at 25 °C; Contact NI for Bellcore MTBF specifications Note at other temperatures or for MIL-HDBK-217F specifications. NI 9481E Operating Instructions and Specifications Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method ni.com...
  • Page 9: Power Requirements

    Torque for screw terminals ... 0.5 to 0.6 N · m Weight... 76 g (2.7 oz) © National Instruments Corp. conductor wire with 10 mm (0.39 in.) of insulation stripped from the end (4.4 to 5.3 lb · in.) NI 9481E Operating Instructions and Specifications...
  • Page 10 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. Do not connect the NI 9481E to signals or use Caution for measurements within Measurement Categories III or IV.
  • Page 11: Online Product Certification

    , search by module number or product line, and certification click the appropriate link in the Certification column. © National Instruments Corp. (Double insulation) , verified by a 5 s dielectric withstand test ni.com/ 11 NI 9481E Operating Instructions and Specifications...
  • Page 12 Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meeting these specifications.
  • Page 13: Environmental Management

    WEEE recycling center. For more information about WEEE recycling centers and National Instruments WEEE initiatives, visit environment/weee © National Instruments Corp. ni.com/environment At the end of the life cycle, all products 13 NI 9481E Operating Instructions and Specifications . This page ni.com/...
  • Page 14: Where To Go For Support

    China RoHS compliance, go to environment/rohs_china Where to Go for Support The National Instruments Web site is your complete resource for technical support. At everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.
  • Page 15 Sweden 46 (0) 8 587 895 00, Switzerland 41 56 2005151, Taiwan 886 02 2377 2222, Thailand 662 278 6777, Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545 © National Instruments Corp. 15 NI 9481E Operating Instructions and Specifications...
  • Page 16 National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.

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