National Instruments NI 9244 Getting Started Manual
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National Instruments NI 9244 Getting Started Manual

3 ai/1 neutral, 400 vrms l-n/690 vrms l-l, 24 bit, 50 ks/s/ch simultaneous
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Summary of Contents for National Instruments NI 9244

  • Page 1 NI-9244...
  • Page 2 GETTING STARTED GUIDE NI 9244 3 AI/1 Neutral, 400 Vrms L-N/690 Vrms L-L, 24 Bit, 50 kS/s/ch Simultaneous...

  • Page 3: Safety Guidelines

    This document explains how to connect to the NI 9244. Before you begin, complete the software and Note hardware installation procedures in your chassis documentation. The guidelines in this document are specific to Note the NI 9244. The other components in the system might not meet the same safety ratings.

  • Page 4: Safety Voltages

    Division 2 and Zone 2 hazardous locations applications Channel-to-earth 300 Vrms, ground Measurement Category III Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. NI 9244 Getting Started Guide | © National Instruments | 3...

  • Page 5: Safety Guidelines For Hazardous Voltages

    Do not connect the NI 9244 to signals or use Caution for measurements within Measurement Category IV.

  • Page 6: Safety Guidelines For Hazardous Locations

    Safety Guidelines for Hazardous Locations The NI 9244 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4 and Ex nA IIC T4 hazardous locations; and nonhazardous locations only.
  • Page 7 Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9244 in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.

  • Page 8: Electromagnetic Compatibility Guidelines

    This product is intended for use in industrial locations. However, harmful interference may occur in some installations, when the product is connected to a peripheral device or test object, or if the NI 9244 Getting Started Guide | © National Instruments | 7...

  • Page 9: Special Conditions For Marine Applications

    In addition, take precautions when designing, selecting, and installing measurement probes and cables to ensure that the desired EMC performance is attained. 8 | ni.com | NI 9244 Getting Started Guide...

  • Page 10: Preparing The Environment

    Preparing the Environment Ensure that the environment in which you are using the NI 9244 meets the following specifications. Operating temperature -40 °C to 70 °C (IEC 60068-2-1, IEC 60068-2-2) Operating humidity 10% RH to 90% RH, (IEC 60068-2-78) noncondensing...
  • Page 11 NI 9244 Pinout Neutral 10 | ni.com | NI 9244 Getting Started Guide...

  • Page 12: Connecting Phase Measurements

    Neutral Referenced, single-ended analog input connection Connecting Phase Measurements The NI 9244 accepts three-phase and single-phase measurement configuration. Three-Phase Measurement Configurations NI recommends the following three-phase connection types. NI 9244 Getting Started Guide | © National Instruments | 11...
  • Page 13 4-Wire WYE Measurement Configuration Phase A Phase B Phase C Neutral Neutral NI 9244 12 | ni.com | NI 9244 Getting Started Guide...

  • Page 14: High-Leg Delta Measurement Configuration

    High-Leg Delta Measurement Configuration Phase A Phase B Phase C Neutral Neutral NI 9244 NI 9244 Getting Started Guide | © National Instruments | 13...
  • Page 15 3-Wire Delta Measurement Configuration Phase A Phase B Phase C NI 9244 14 | ni.com | NI 9244 Getting Started Guide...

  • Page 16: Corner Grounded 2-Wire Delta Measurement Configuration

    The 9244 cannot measure the entire tolerance range or high crest factor signals on 690 Vrms systems in this configuration. Connecting Single-Phase Measurement Configurations NI recommends the following single-phase connection types. NI 9244 Getting Started Guide | © National Instruments | 15...
  • Page 17 3-Wire Measurement (Split Phase) Configuration Neutral NI 9244 2-Wire Measurement Neutral NI 9244 16 | ni.com | NI 9244 Getting Started Guide...

  • Page 18: Connection Guidelines

    NI 9244. • Make sure that devices you connect to the NI 9244 are compatible with the module specifications. To ensure that measurements to chassis ground are correct, NI recommends connecting the chassis to earth ground using the chassis grounding screw.

  • Page 19: Wiring The Ni 9969

    Installing the NI 9969 Using 12 AWG to 14 AWG Wire What to Use • NI 9969 backshell • 12 AWG to 14 AWG wire • Smallest strain-relief piece • Screwdriver 18 | ni.com | NI 9244 Getting Started Guide...
  • Page 20 What to Do 1. Route wires under the smallest strain-relief piece. 2. Secure the smallest strain-relief piece and the backshell in place using captive screws. NI 9244 Getting Started Guide | © National Instruments | 19...
  • Page 21 Installing the NI 9969 Using 16 AWG Wire What to Use • NI 9969 backshell • 16 AWG wire • Small and large strain-relief pieces • Screwdriver 20 | ni.com | NI 9244 Getting Started Guide...
  • Page 22 2. Secure the strain-relief pieces and the backshell in place using captive screws. NI 9244 Getting Started Guide | © National Instruments | 21...
  • Page 23 Installing the NI 9969 Using 18 AWG to 24 AWG Wire What to Use • NI 9969 backshell • 18 AWG to 24 AWG wire • Largest strain-relief piece • Screwdriver 22 | ni.com | NI 9244 Getting Started Guide...
  • Page 24 What to Do 1. Route wires under the largest strain-relief piece. 2. Secure the largest strain-relief piece and the backshell in place using captive screws. NI 9244 Getting Started Guide | © National Instruments | 23...

  • Page 25: Converting L-N Measurements To L-Earth

    AI channels using your application software. Refer to the following equation for an example of converting L-N measurements to L-L. Phase A to Phase B Voltage = AI0 - AI1 24 | ni.com | NI 9244 Getting Started Guide...
  • Page 26 AI0 is the reading from Phase A AI1 is the reading from Phase B NI 9244 Getting Started Guide | © National Instruments | 25...

  • Page 27: Where To Go Next

    NI 9244 Datasheet NI 9244 Datasheet NI-RIO Help NI-DAQmx Help LabVIEW FPGA Help LabVIEW Help RELATED INFORMATION C Series Documentation Services & Resources ni.com/services ni.com/info cseriesdoc Located at ni.com/manuals Installs with the software 26 | ni.com | NI 9244 Getting Started Guide...

  • Page 28: Worldwide Support And Services

    You can obtain the DoC for your product by visiting ni.com/certification. If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration. NI 9244 Getting Started Guide | © National Instruments | 27...
  • Page 29 U.S. Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015. © 2016 National Instruments. All rights reserved. 376131D-01 Apr16...

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