National Instruments 9242 Getting Started Manual Download | Manualshive

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3-Wire WYE-to-WYE

AI0
AI1
AI2
N

Phase A
Phase B
Phase C

NI 9242

Potential Transformer Ratio Scaling

When measuring voltages using potential transformers, scale the
NI 9242 readings with your application software using the

24

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ni.com

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NI 9242 Getting Started Guide

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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Summary of Contents for 9242

Page 1: ...derutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In s...

Page 2: ...GETTING STARTED GUIDE NI 9242 3 AI 1 Neutral 250 Vrms L N 400 Vrms L L 24 Bit 50 kS s ch Simultaneous hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 3: ...h component in the system to determine the safety and EMC ratings for the entire system Safety Guidelines Operate the NI 9242 only as described in this document Caution Do not operate the NI 9242 in a...

Page 4: ...Category III Measurement Category III is for measurements performed in the building installation at the distribution level This category refers to measurements on hard wired hardware such as hardware...

Page 5: ...ocal electrical standards 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 i...

Page 6: ...jury 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 swit...

Page 7: ...tions 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 Caution The system shall only be used in an area of not more tha...

Page 8: ...cur in some installations when the product is connected to a peripheral device or test object or if the product is used in residential or commercial areas To minimize interference with radio and telev...

Page 9: ...d s Register mark on the product Caution In order to meet the EMC requirements for marine applications install the product in a shielded enclosure with shielded and or filtered power and input output...

Page 10: ...2 1 IEC 60068 2 2 40 C to 70 C Operating humidity IEC 60068 2 78 10 RH to 90 RH noncondensing Pollution Degree 2 Maximum altitude 5 000 m Indoor use only Note Refer to the device datasheet on ni com...

Page 11: ...NI 9242 Pinout AI0 AI1 AI2 Neutral 0 1 2 3 10 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 12: ...analog input connection Connecting Phase Measurements The NI 9242 accepts three phase and single phase measurement configuration Three Phase Measurement Configurations NI recommends the following thre...

Page 13: ...Wire WYE Measurement Configuration NI 9242 AI0 Phase A Phase B Phase C Neutral Neutral AI2 AI1 12 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE ww...

Page 14: ...lta Measurement Configuration NI 9242 AI0 Phase A Phase B Phase C Neutral AI2 AI1 Neutral NI 9242 Getting Started Guide National Instruments 13 hnology Group Quality Instrumentation Guaranteed 888 88...

Page 15: ...3 Wire Delta Measurement Configuration NI 9242 AI0 Phase A Phase B Phase C AI2 AI1 14 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 16: ...e delta measurement configurations support only standard service levels up to 240 Vrms L L Connecting Single Phase Measurement Configurations NI recommends the following single phase connection types...

Page 17: ...Measurement Split Phase Configuration NI 9242 AI0 Neutral AI1 2 Wire Measurement NI 9242 AI0 Neutral 16 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOU...

Page 18: ...ransformer Connections The NI 9242 accepts the following potential transformer connections NI 9242 Getting Started Guide National Instruments 17 hnology Group Quality Instrumentation Guaranteed 888 88...

Page 19: ...4 Wire WYE to WYE Full AI0 AI1 AI2 N Phase A Phase B Phase C Neutral NI 9242 18 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 20: ...bottom transformer You can use a lower ratio transformer due to the typically low voltages on the Neutral terminal Ensure that you scale each NI 9242 channel reading with the corresponding transforme...

Page 21: ...4 Wire WYE to WYE Partial AI0 AI1 AI2 N Phase A Phase B Phase C Neutral NI 9242 20 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 22: ...Note You can use the Neutral channel for any other measurement if the measurement does not exceed the Neutral to Earth and L N input range NI 9242 Getting Started Guide National Instruments 21 hnology...

Page 23: ...Delta to WYE AI0 AI1 AI2 N Phase A Phase B Phase C NI 9242 22 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 24: ...2 Note You can use the Neutral channel for any other measurement if the measurement does not exceed the Neutral to Earth and L N input range NI 9242 Getting Started Guide National Instruments 23 hnolo...

Page 25: ...Potential Transformer Ratio Scaling When measuring voltages using potential transformers scale the NI 9242 readings with your application software using the 24 ni com NI 9242 Getting Started Guide hno...

Page 26: ...a single terminal on the NI 9242 Make sure that devices you connect to the NI 9242 are compatible with the module specifications To ensure that measurements to chassis ground are correct NI recommend...

Page 27: ...ed ground of the potential transformer Use the L N voltage measurements the NI 9242 returns as the default value Note You can convert L N measurements to channel to earth ground by adding the Neutral...

Page 28: ...ctor on the NI 9242 Complete the appropriate procedure for each wire gauge Installing the NI 9967 Using 12 AWG to 14 AWG Wire What to Use NI 9967 backshell 12 AWG to 14 AWG wire Smallest strain relief...

Page 29: ...er the smallest strain relief piece 2 Secure the smallest strain relief piece and the backshell in place using captive screws 28 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentat...

Page 30: ...ng 16 AWG Wire What to Use NI 9967 backshell 16 AWG wire Small and large strain relief pieces Screwdriver NI 9242 Getting Started Guide National Instruments 29 hnology Group Quality Instrumentation Gu...

Page 31: ...train relief piece on top of the wires and the large strain relief piece underneath the wires 2 Secure the strain relief pieces and the backshell in place using captive screws 30 ni com NI 9242 Gettin...

Page 32: ...AWG to 24 AWG Wire What to Use NI 9967 backshell 18 AWG to 24 AWG wire Largest strain relief piece Screwdriver NI 9242 Getting Started Guide National Instruments 31 hnology Group Quality Instrumentati...

Page 33: ...der the largest strain relief piece 2 Secure the largest strain relief piece and the backshell in place using captive screws 32 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentati...

Page 34: ...B Voltage AI0 AI1 where AI0 is the reading from Phase A AI1 is the reading from Phase B Converting L N Measurements to L Earth To convert L N measurements to L Earth values add the neutral channel rea...

Page 35: ...where AIx is the analog input channel reading Neutral is the Neutral channel reading 34 ni com NI 9242 Getting Started Guide hnology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Page 36: ...ation Resources ni com info cseriesdoc Services ni com services Installs with the software NI 9242 Datasheet NI RIO Help LabVIEW FPGA Help NI 9242 Datasheet NI DAQmx Help LabVIEW Help NI 9242 Getting...

Page 37: ...acilitates technical support and ensures that you receive important information updates from NI A Declaration of Conformity DoC is our claim of compliance with the Council of the European Communities...

Page 38: ...ni com support or dial 1 866 ASK MYNI 275 6964 For telephone support outside the United States visit the Worldwide Offices section of ni com niglobal to access the branch office websites which provid...

Page 39: ...e file for your NI product Refer to the Export Compliance Information at ni com legal export compliance for the NI global trade compliance policy and how to obtain relevant HTS codes ECCNs and other i...

Page 40: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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