NI 9725 User Manual and Specifications
Contents
1. lt g O 2 3 VDC O 0 O Output devices that you connect to the NI 9725 must be able to source enough current to overcome the NI 9725 input load burden The NI 9725 burden is dynamic and varies depending on the input voltage Figure 20 Burden Current Per Channel 2 00 Max Min 1 50 4 1 00 5 Burden Current mA 0 50 0 00 l i 0 00 100 00 200 00 300 00 Input Voltage V 12 nicom NI9725 User Manual and Specifications Figure 21 Burden Power Per Channel Burden Power mW 200 00 Max Min 150 00 100 00 50 00 5 0 00 0 00 100 00 200 00 300 00 Input Voltage V NI 9725 User Manual and Specifications National Instruments 13 Circuitry 14 VA VB VC VN DI 4 a w t C Shunt Resistor ED i VDC a gt oO VDC o4 NZ NI 9725 ni com NI 9725 User Manual and Specifications VOLTAGE BUS Each voltage channel provides an independent signal path and ADC Each terminal has the same input impedance to ground The NI 9725 returns the voltage between each VA VB and VC terminal and the VN terminal as well as the voltage between the VN terminal and the chassis ground CURRENT BUS Each current channel provides an independent signal path and ADC enabling you to sampl2. Torque for screw flanges eee 0 5N mto0 6N m 4 lb in to 5 Ib in P rrul s on tua ie Bode 0 25 mm to 4 mm Backshell Torque for strain relief screWS 06 0 31 N m 2 7 lb in Torque for captive SCEWS cceeeeeeees 0 56 N m 5 0 lb in Type Tests Table 4 NI 9725 Type Tests Description Standards Ports Levels Radiated CISPR 22 Enclosure Class A Emission Conducted CISPR 22 Enclosure Class A Emission 1 MHz Damped IEC 61000 4 18 Power 2 5 kV common mode Oscillatory Wave Digital Inputs 1 kV transverse mode Analog Inputs C37 90 1 Ethernet 2 5 kV common mode GPS 100 kHz Damped IEC 61000 4 18 Power 4kV common mode Oscillatory Wave Analog Inputs 2 kV transverse mode Digital Inputs 4kV common mode 1 kV transverse mode GPS 2 kV common mode 20 nicom NI 9725 User Manual and Specifications Table 4 NI 9725 Type Tests Continued Description Standards Ports Levels Fast Transients IEC 61000 4 4 Power 4kV common mode and transverse Analog Inputs mode C37 90 1 Digital Inputs 4kV common mode 2 kV transverse mode Ethernet 4kV common mode GPS Functional Earth Surge IEC 61000 4 5 Power 0 5 kV 1 kV 2 kV 4 kV common mode Analog Inputs 0 5 kV 1 kV 2 kV transverse mode Digital Inputs 0 5 kV 1 kV 2 kV 4 kV common mode 0 5 kV 1 kV 2 kV transverse mode GPS 0 5 kV 1 kV 2 kV common mod
3. connect the negative line to the DC terminal and the positive line to DC You must use the connector backshell to ensure that the terminals are not accessible Figure 4 Power Connector and Ground Terminal 1 Power connector with backshell 2 Safety ground terminal 4 nicom NI 9725 User Manual and Specifications Connecting Cables to the NI 9725 The NI 9725 has one ten position two eight position and two four position barrier strip connectors on the rear panel for I O connections When connecting cables to the barrier strips use ring or spade lugs to connect to the 8 studs for outside connections Terminate the cable shields to the chassis ground terminal adjacent to the barrier strip connector The NI 9725 includes 7 chassis ground terminals as shown in Figure 5 Figure 5 NI 9725 Back Panel DIGITAL ve BUS 1 CURRENT BUS 1 VOLTAGE DIO DI1 DI2 DIZ DI4 DIS DIG DI7 24 300 IA IB Ic IN VA VB VC VN rere ee eg el oe ii Ojo 4 a e a BUS 2 CURRENT IA 1B Ic IN coarse ees ee o 3 o O l o 5 Cat l gt ws Miko do ANSE SEEN BRR NI AX Connecting to the Voltage Bus You can connect three phase and single phase measurement configurations to the NI 9725 The NI 9725 supports standard service levels up to 250 Vrms Line to Neutr
4. C 0 62 Typ 23 C 5 C 0 16 Table 3 DC Accuracy Percent of Reading Percent of Range Measurement Conditions Gain Error Offset Error Max 20 C to 55 C 0 8 6 3 Typ 23 C 5 C 0 3 1 Range equals 5A Input noise over full bandwidth at 50 kS s 3 9 mArms Input noise over 60 Hz bandwidth at 50 kS S 135 uVrms Network Port 1 Copper Ethernet CONNECCION Sessess sat scoseseia censha ETE RJ45 Network interface ccceceseeseeseeseeneeseeeeeeeees 10 100 1000 BaseT Communications rates cceecceeceecseeseeeeteeees 10 Mbps 100 Mbps 1000 Mbps auto negotiated 18 nicom NI9725 User Manual and Specifications Network Port 2 Fiber Ethernet CONC CHOR si55is casts casts endssngsdecasecteesatscessasaseeessd LC duplex CAB Li 8 is sis cen cestndede casnwats ve desans Seateatdesdeetanereewe eds 50 62 5 125um 50 125um recommended to minimize internal transmission losses Network interface 0 c ccccecscccsseeesesecesseeessees 1000 BaseSX multimode full duplex 1000 Mbit s Communication rate GPS Input Pulse per second PPS accuracy sees 100 ns gt 99 typical COMMECIOL veriset ERTEAN ATENE F Type TORQUE E E causssaiseveasviess 1 4 N m 12 Ib in Physical Characteristics If you need to clean the NI 9725 wipe it with a dry towel or a soft bristle brush The display should be cleaned with a microfiber cloth Weight
5. Figure 12 4 Wire WYE to WYE Full Phase A IVA Phase B ne Phase C ik VC Neutral SVN NI 9725 In a 4 wire WYE to WYE full configuration the VN terminal on the NI 9725 measures the neutral to ground voltage through the bottom transformer You can use a lower ratio transformer due to the typically low voltages on the VN terminal Ensure that you scale each NI 9725 channel reading with the corresponding transformer ratio Figure 13 4 Wire WYE to WYE Partial Phase A IAT Phase B SVB Phase il o Neutral i VN N1 9725 8 nicom NI9725 User Manual and Specifications For 4 wire WYE to WYE partial configurations follow these guidelines for the best accuracy results e Connect the VN terminal of the NI 9725 to the isolated ground of the potential transformer to reduce noise between the potential transformer ground and the chassis ground e Connect the VN terminal of the NI 9725 as close as possible to the isolated ground of the potential transformer e Use the L N voltage measurements the NI 9725 returns as the default value Q Tip You can convert L N voltage measurements to channel to earth ground by adding the Neutral terminal measurement to each of the V channels Figure 14 Delta to Delta Phase A Phase B 3 Phase C Phase 3 1 Optional Q Tip You can use the N
6. NI product Refer to the Export Compliance Information at ni com 1legal export compliance for the NI global trade compliance policy and how to obtain relevant HTS codes ECCNs and other import export data NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS 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 2015 National Instruments All rights reserved 376972A 01 Aug15
7. Voltage If hazardous voltages are connected to the device take the following precautions A hazardous voltage is a voltage greater than 42 4 Vpk or 60 VDC to earth ground gt P P P PP Caution Ensure that installation is performed only by qualified personnel Caution The NI 9725 must be installed in a secure enclosure or a rack which is accessible only by the use of a tool as shown in Figure 2 Caution Do not mix hazardous voltage circuits and human accessible circuits on the same terminal block Caution Make sure that high voltage devices and circuits connected to the NI 9725 are properly insulated from human contact Caution When module terminals are hazardous voltage LIVE gt 42 4Vpk 60 VDC you must ensure that all devices and circuits connected to the NI 9725 are properly insulated from human contact Caution A main input power switch or circuit breaker must be included in the installation as shown in Figure 2 The switch circuit breaker must be suitably located and easily reached and clearly marked as the power disconnect device for this product 2 nicom NI 9725 User Manual and Specifications Figure 2 Secure Rack 1 Front view of secure rack 4 NI 9725 inside a secure rack front view 2 Rear view of secure rack 5 Lock securing the rack 3 Main input power switch 6 NI 9725 inside a secure rack rear view Connecting Safety Ground NI requires that you connect the NI 9725 to earth gr
8. column Shock and Vibration This product meets the requirements of the following standards for shock and vibration e TEC 60255 21 1 1988 Electrical relays Part 21 Section One Vibration tests sinusoidal Class 1 e TEC 60255 21 2 1988 Electrical relays Part 21 Section Two Shock and Bump tests Class 1 TEC 60255 21 3 1993 Electrical relays Part 21 Section Three Seismic tests Class 1 24 nicom NI 9725 User Manual and Specifications Environmental Operating temperature IEC 60068 2 1 IEC 60068 2 2 eee 20 C to 55 C Storage temperature IEC 60068 2 1 IEC 60068 2 2 oo eee 40 C to 85 C Ingress protection cccccesseseseeseeeeeeeeeeeeeeeees IP 30 Operating humidity IEC 60068 2 78 10 RH to 90 RH noncondensing Storage humidity IEC 60068 2 78 00 5 RH to 95 RH noncondensing Pollution Degree IEC 60664 eee 2 Maximum altitude ccccccceeeseceeseeeeeeeeeseeees 2 000 m Indoor use only Environmental Management NI is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and directives with which NI complies a
9. s sssesessserseiseisersstssseesstsstrsstrssesstrstnesnesn 9 34 kg 20 6 1b Dimensions 0 ceccceeseceessceeesceeesecessseesssecessees 481 1 mm x 513 4 mm x 221 2 mm 18 94 in x 20 21 in x 8 71 in Note Visit ni com dimensions to find two dimensional drawings and three dimensional models for the NI 9725 Torque for shield points cccseeseseeeeeeeeees 1 4N m 12 1b in Stud size for shield points cece M4 8 Torque for safety ground terminal 14N m 12 lb in Current Digital and Voltage Connector Characteristics Bate WITE sess eva e sted tleerseades 5 26 mm cross section diameter 10 AWG to 0 33 mm cross section diameter 22 AWG copper conductor wire with 8 mm 0 3 in of insulation stripped from the end Ring spade terminals Stud S123 cas sss mernis eana M4 8 Maximum Width cee eeeeetereeeeeeeeeees 9 40 mm 0 370 in Torque for barrier strip terminals 06 1 4N m 12 1b in NI 9725 User Manual and Specifications National Instruments 19 Power Connector Characteristics Screw terminal Wiring 0 cee eceeeseeecneeeeeeeee 5 26 mm cross section diameter 10 AWG to 0 21 mm cross section diameter 24 AWG copper conductor wire with 7 mm 0 3 in of insulation stripped from the end Torque for screw terminal cceceeeseeseereeee 0 5N mto0 6N m 4lb in to 5 Ib in Connector Securement Securement type Screw flanges provided
10. USER MANUAL AND SPECIFICATIONS NI 9725 Grid Automation System This document explains how to set up and install the National Instruments 9725 Grid Automation System Figure 1 NI 9725 Parts Locator Diagram N X1 N EZ EZ 8 Voltage Connectors 9 RJ 45 Ethernet Port 1 NI 9725 Front View 2 NI 9725 Rear View 10 LC Fiber Ethernet Port 3 Front Handles 11 GPS Connector F Type 4 Touchscreen Display 5 Standby Switch 6 Digital Connector 12 Power Connector with Backshell 13 Earth Ground Terminal Protective Earth 7 Current Connectors INSTRUMENTS y NATIONAL Safety Guidelines Operate the NI 9725 only as described in this manual A A A Hazardous Voltage This icon denotes a warning advising you to take precautions to avoid electrical shock Caution Do not operate or install the NI 9725 in a manner not specified in this guide 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 National Instruments for repair Caution The NI 9725 requires a connection from the premises wire safety ground to the earth ground terminal protective earth The earth safety ground must be connected during use of this equipment to minimize shock hazards Refer to the Connecting Safety Ground section for instructions on connecting safety ground Safety Guidelines for High
11. al L N and 400 Vrms Line to Line L L You can also connect standard potential transformers to the NI 9725 NI recommends using the following phase measurement configurations for typical power distribution networks Other valid configurations are possible if the connections do not exceed the safety rating of the NI 9725 NI 9725 User Manual and Specifications National Instruments 5 Connecting Three Phase Measurement Configurations You can connect WYE or delta measurement configurations to the NI 9725 Figure 6 Connecting a 4 Wire WYE Measurement Configuration Phase A AVA Phase B i VB VC Phase C j i Neutral VN u Phase B NI 9725 Phase A Phase B Phase C 6 nicom NI9725 User Manual and Specifications Figure 9 Connecting a Corner Grounded 2 Wire Delta Measurement Configuration Phase A Phase B Phase C Note Corner grounded 2 wire delta measurement configurations support only standard service levels up to 240 Vrms L L Connecting Single Phase Measurement Configurations You can connect 3 wire or 2 wire single phase measurement configurations to the NI 9725 Figure 10 Connecting a 3 Wire Measurement Split Phase Configuration Sec sbowessesoae couy NI 9725 User Manual and Specifications National Instruments 7 Connecting Potential Transformers You can connect potential transformers to the NI 9725
12. ample 115 V for U S or 230 V for Europe A Caution Do not connect the NI 9725 digital bus to signals or use for measurements within Measurement Categories III or IV Current Bus The negative terminal of each current input channel is tied internally to the chassis ground Power Input Isolation Line and neutral to earth ground Continuous 0 00 0 eee eeeeeeeeeeeseeeeeeees 250 Vrms Overvoltage Category II Withstand crides eisein 2400 Vrms 2400 VDC Verified by 2s dielectric withstand test Overvoltage 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 A Caution Do not connect the NI 9725 digital bus to signals or use for measurements within Measurement Categories III or IV Safety Standards This product meets the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use e TEC 61010 1 EN 61010 1 e UL 61010 1 CSA 61010 1 a Note For UL and other safety certifications refer to the product label or the Online Product Certification section NI 9725 User Manual and Specifications National Instruments 23 Electromagnetic Compatibility This product meets the requirements of the following EMC standards for electrical equipment for measurement con
13. e Electrostatic IEC 61000 4 2 Enclosure 8 kV contact discharge Discharge 15 kV air discharge C37 90 3 Radiated IEC 61000 4 3 Enclosure 20 V m 80 MHz to 1000 MHz Electromagnetic Field Immunity C37 90 2 10 V m 1 4 GHz to 2 7 GHz 20 V m 80 MHz 160 MHz 450 MHz 900 MHz 10 V m 380 MHz 1850 MHz 2150 MHz Conducted IEC 61000 4 6 Power 10 V 0 15 MHz to 80 MHz Immunity Digital Inputs Analog Inputs 10 V 27 MHz 68 MHz Ethernet GPS Power Frequency IEC 61000 4 16 Power 30 V continuous Voltage Immunity Digital Inputs Analog Inputs 300 V for I s Ethernet DC Voltage Dips IEC 61000 4 29 Power 0 10 ms to 1000 ms 40 200 ms 70 500 ms NI 9725 User Manual and Specifications National Instruments 21 Table 4 NI 9725 Type Tests Continued Description Standards Ports Levels AC Voltage Dips IEC 61000 4 29 Power 0 0 5 to 25 cycles 50 60 Hz 40 10 cycles at 50 Hz 40 12 cycles at 60 Hz 70 25 cycles at 50 Hz 70 30 cycles at 60 Hz DC Voltage IEC 61000 4 29 Power 0 for 5s Interruptions AC Voltage IEC 61000 4 11 Power 0 for 250 cycles at 50 Hz Interruptions 0 for 300 cycles at 60 Hz Ripple on DC IEC 61000 4 17 Power 15 at 100 Hz and 120 Hz Power Power Frequency IEC 61000 4 8 Enclosure 100 A m continuous Magnetic Field 300 A m for 3 s Damped IEC 61000 4 10 Enclosure 30 A m at 1 MHz Oscillatory Magnetic Field Parts accessible in normal use when
14. e all four channels simultaneously DIGITAL BUS Each digital channel uses an adjustable threshold that is determined by the supply voltage on the VDC terminal The threshold is nominally 2 3 of the supply voltage and the NI 9725 reads ON or OFF if the input voltage on the channel is above or below the threshold voltage Rack Mounting the NI 9725 The NI 9725 supports rack mounting Secure the NI 9725 to the rack posts using four mounting screws appropriate for your rack and the top and bottom mounting positions on the rack mount rails as shown in Figure 22 Using the middle mounting positions on the rack mount rails is optional When placing the NI 9725 in a rack avoid placing the enclosure above a heat source as rising heat can affect the operating temperature A Caution You must install the NI 9725 in a rack prior to use Figure 22 Rack Mounting the NI 9725 NI 9725 User Manual and Specifications National Instruments 15 Specifications This section provides performance specifications for the NI 9725 The following specifications are typical for the range 20 C to 55 C unless otherwise noted Power Consumption Input voltage range and frequency 04 100 to 240 VAC 50 to 60 Hz 110 to 300 VDC Maximum power consumption e eee 26 W Analog Inputs ADC resolution cccceccceeseessesseeseecseeeeserseee 24 bits Type of ADG incrocia Delta Sigma with analog pr
15. efiltering Sampling mode s ssesseseseseessereeeesereersrereerrreerees Simultaneous Internal master timebase fy FREQUENCY e a R 12 8 MHz A CCULACY oe pea n e s 100 ppm max Data rate range f using internal master timebase MUNI 0 eee eeeeeeeceeceeceeceeeeeeeeeeneenees 1 613 kS s Maximum er asics etnies 50 kS s 256 Data rates s sa sebsaecivecseevedscavesseteessesecvsevtons sees AEIR nA 2y 3 Digital Inputs Number of channels 0 0 0 0 ecceeseeseeesereeeeneeees 8 digital input channels Input ty PO is decscssrstedspesseanhcanstente ce EA tants Sinking Input voltage thresholds OFF state 2AN 10 250 Vitis Siete cited ans 65 Vsup 4 V ON state 24 V to 250 Vin ecccccesesceserseseesereeeenees 73 Vsup 0 75 V Input current 10 V lt Vw lt 60 V MaXiMum 0 eee ceeeesesesscseeeesseneeeceeeeeeeeeees 1 8 mA MiNiMi nereis 1 3 mA With input voltages between 10 V and 60 V the input load burden is an approximately constant current With input voltages between 60 V and 300 V the input load is an approximately constant power 16 nicom NI9725 User Manual and Specifications Input power 60 V lt Vn lt 300 V Maxi tins sirsie enei 150 mW Minimum Voltage Inputs Input voltage range Alx and Neutral to GND AIx to Neutral Wy pica enesta eara Gaia denuatonieivens 500 Vpk Overvoltage withstand eeeeeeeereeeeteeees 500 Vrms continuous 600 Vrms for 10 s Input coupling icc cssta
16. eutral channel for any other measurement if the measurement does not exceed the Neutral to Earth and L N input range NI 9725 User Manual and Specifications National Instruments 9 Figure 15 Delta to WYE Phase A VA Phase B VB Phase C 3 f SVC WI nw For delta to WYE configurations follow these guidelines for the best accuracy results e Connect the VN terminal of the NI 9725 to the isolated ground of the potential transformer to reduce noise between the potential transformer ground and the chassis ground e Connect the VN terminal of the NI 9725 as close as possible to the isloated ground of the potential transformer e Use the L N voltage measurements the NI 9725 returns as the default value Q Tip You can convert L N voltage measurements to channel to earth ground by adding the Neutral terminal measurement to each of the V channels Figure 16 3 Wire WYE to Delta Phase A VA Phase B VB Phase C ik 5 VC NI 9725 Q Tip 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 10 nicom NI9725 User Manual and Specifications Figure 17 3 Wire WYE to WYE Phase A IVA eras ees Phase B i vB i PhaseC 3 ve i VN i i NI 9725 it For 3 wire WYE to WYE configurations follow these guidelines for best accuracy
17. ound protective earth using the following steps Refer to Figure 3 for a diagram of the NI 9725 safety ground terminal SAFETY GROUND CAUTION Connecting Safety Ground Protective Earth The NI 9725 must have a safety ground protective earth which is connected by the installer to the premises safety ground system for safe operation The installer must use a green or green yellow wire for this purpose The safety ground method shall be reliable and meet applicable safety codes NI 9725 User Manual and Specifications National Instruments 3 Figure 3 Safety Ground Terminal 1 Safety ground terminal Attach a ring lug to a green or green yellow wire that is 5 26 mm 10 AWG or larger Remove the grounding nut from the safety ground terminal on the rear panel of the NI 9725 Attach the ring lug to the safety ground terminal Tighten the grounding nut to 1 4 N m 12 lb in of torque Ne ee ae Attach the other end of the green or green yellow wire to the grounding electrode system of your facility using a method appropriate for the application Wiring Power Connections to the NI 9725 The NI 9725 provides a power connector with backshell and a safety ground terminal as shown in Figure 4 Connect neutral and line to the N DC and L DC terminals on the power connector and the ground to the safety ground terminal When using DC power
18. rack mounted Safety Voltage Bus Maximum working voltage channel to earth ground Continuous 250 Vrms 250 VDC Measurement Category III Withstand f2 4 eek ae pa 2400 Vrms 2400 VDC Verified by 2s dielectric withstand test 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 in fixed installations distribution boards and circuit breakers Other examples are wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and stationary motors with permanent connections to fixed installations A Caution Do not connect the NI 9725 voltage bus to signals or use for measurements within Measurement Categories IV 22 nicom NI 9725 User Manual and Specifications Digital Bus Maximum working voltage channel to COM 300 VDC max Isolation Channel to channel 0 0 0 eeeseeeeeceeereeee None Channel to earth ground Continuous 0 0 eeceeeceeereeeceeeeeeenees 300 Vrms 300 VDC Measurement Category II Withstand istics ceased cveiststestvadetnecseyetes 2400 Vrms 2400 VDC Verified by 2s dielectric withstand test 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 ex
19. results e Connect the VN terminal of the NI 9725 to the isolated ground of the potential transformer to reduce noise between the potential transformer ground and the chassis ground e Connec the VN terminal of the NI 9725 as close as possible to the isolated ground of the potential transformer e Use the L N voltage measurements the NI 9725 returns as the default value Q Tip You can convert L N voltage measurements to channel to earth ground by adding the Neutral terminal measurement to each of the V channels Connecting to the Current Bus You can connect floating current sources to the NI 9725 The negative terminal of each current input channel is internally connected to the chassis ground of the NI 9725 Figure 18 Connecting a Floating Current Source Current Source A T NI 9725 User Manual and Specifications National Instruments 11 Connecting to the Digital Bus You can connect sourcing output devices to the NI 9725 You must connect a supply voltage to VDC on the NI 9725 Input channels on the NI 9725 read ON or OFF depending on the threshold set by VDC The threshold is approximately 2 3 of the supply voltage on VDC A Caution Electrostatic Discharge ESD can damage the digital inputs To prevent damage use industry standard ESD prevention measures during installation maintenance and operation Figure 19 Connecting a Sourcing Output Device Sourcing Output Device
20. s using the manufacturer s declaration of conformity This system affords the user protection for electromagnetic compatibility EMC and product safety 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 corporate headquarters is located at 11500 North Mopac Expressway Austin Texas 78759 3504 NI also has offices located around the world For telephone support in the United States create your service request at 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 provide up to date contact information support phone numbers email addresses and current events 26 nicom NI 9725 User Manual and Specifications Refer to the W Trademarks and Logo Guidelines at ni com trademarks for more information on NI trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering NI products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patents Notice at ni com patents You can find information about end user license agreements EULAs and third party legal notices in the readme file for your
21. s well as other environmental information not included in this document Waste Electrical and Electronic Equipment WEEE K EU Customers At the end of the product life cycle all products must be sent to ea a WEEE recycling center For more information about WEEE recycling centers National Instruments WEFE initiatives and compliance with WEEE Directive 2002 96 EC on Waste and Electronic Equipment visit ni com environment weee BFS Risks BEDS HE ROHS OGD HAA National Instruments 4AF E ea FAE Ar at PE Hd EF LE ERS ROHS XF National Instruments FE ROHS AAEE E WK ni com environment rohs_china For information about China RoHS compliance go to ni com environment rohs_china NI 9725 User Manual and Specifications National Instruments 25 Worldwide Support and Services The NI website is your complete resource for technical support At ni com support you have access to everything from troubleshooting and application development self help resources to email and phone assistance from NI Application Engineers Visit ni com services for NI Factory Installation Services repairs extended warranty and other services Visit ni com register to register your NI product Product registration facilitates 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 Communitie
22. tn i iiaae DC Input impedance Alx to Ground and Neutral to GND e ececeseeseeseeeeeeteeeeeeee 1MQ Table 1 DC and AC Accuracy Percent of Reading Percent of Range Measurement Conditions Gain Error Offset Error Max 20 C to 55 C 0 26 0 14 Typ 23 C 5 C 0 05 0 022 Range equals 354 V 250 Vrms x V2 EN Note Accuracy specifications are valid for L L L N and L Earth measurements Input noise over full bandwidth at 50 kS s N Earth and L Earth cece eeeeees 2 12 mVrms L N and L L 3 mVrms Input noise over 60 Hz bandwidth at 50 kS s N Earth and L Earth 0 0 0 0 eeeeeeee 73 5 uVrms L N and L Liw ee ccc ccccceesecesseeceseeeesseeeeee 104 uVrms 1 For specified type test performance use a debounce time of at least 1 ms NI 9725 User Manual and Specifications National Instruments 17 Current Inputs Input current range Typical icecat 500 Apk Nominal 3 3 05 3 c0cissssesiessedseissseesesascesszeeetsoses 1 Arms 5 Arms Overcurrent withstand ccccceeceseeseseeeees 20 Arms continuous 500 Arms for 1 s 1250 Arms for one power cycle Input coupling 0 ee eeceeeeseeeeeeeceeceeceeneeseeees DC Input impedance Ix to Ix oe eeeeeteeteeeeee 5 mQ 4 Note The negative terminals are internally connected to the chassis ground Table 2 AC Accuracy Percent of Reading Measurement Conditions Gain Error Max 20 C to 55
23. trol and laboratory use e EN 61326 1 IEC 61326 1 Class A emissions Industrial immunity e EN 55011 CISPR 11 Group 1 Class A emissions EN 55022 CISPR 22 Class A emissions e EN 55024 CISPR 24 Immunity e AS NZS CISPR 11 Group 1 Class A emissions e AS NZS CISPR 22 Class A emissions e FCC 47 CFR Part 15B Class A emissions e ICES 001 Class A emissions ei Note Inthe United States per FCC 47 CFR Class A equipment is intended for use in commercial light industrial and heavy industrial locations In Europe Canada Australia and New Zealand per CISPR 11 Class A equipment is intended for use only in heavy industrial locations Note Group equipment per CISPR 11 is any industrial scientific or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection analysis purposes 4 Note For EMC eclarations and certifications and additional information refer to the Online Product Certification section CE Compliance CE This product meets the essential requirements of applicable European Directives as follows e 2006 95 EC Low Voltage Directive safety e 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification To obtain product certifications and the Declaration of Conformity DoC for this product visit ni com certification search by module number or product line and click the appropriate link in the Certification
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