AEMC MR461 & MR561 AC/DC Current Probes Manual
Contents
1. 15 4 1 4 Making Measurements with the Connector 15 4 1 5 O il nee ea 16 4 2 Tips For Getting the Best Accuracy 16 4 3 Typical Response Curves sssssessssessiirrenrsessstrrrrrnrrnrrenserees 17 44 Operation Examples ee Re Re Re ee ee ee ee 18 5 MAINTENANCE uuu essens ee RR KERE ERK RE I KERE EE EER EE EE KEER EE 20 5 1 Maintenance snimati atus Ke DR Dee Ge Ge Se Se Ee EDE Ke rs 20 5 1 1 Battery Replacement saessssensssrresernrrrenrinnnesernnnenenna 20 51 2 GleanNING DEE 20 Repair and Calibration Ee RR RR Re ee ee ee ee ee ee ee ee Re eke ee 21 Technical and Sales Assistance ie ee ee ER AR RA Ee ee ee ee ee ee 21 Limited Waranty sis se gees oii ei Bg add 22 Watfanty RepalfS EE EETL RS nu OE ER sha a u ak ss 22 CHAPTER 1 INTRODUCTION ZN WARNING AN These safety warnings are provided to ensure the safety of personnel and proper operation of the instrument e Read this instruction manual completely and follow all the safety information before attempting to use or service this instrument e Use caution on any circuit Potentially high voltages and currents may be present and may pose a shock hazard e Read the safety specifications section before using the Model MR461 or MR561 Never exceed the maximum working voltage rat ings given e Safety is the responsibility of the operator e Never open the back of the2. AC DC Current Probe Models MR461 and MR561 17 44 Operation Examples 44 1 Oscilloscope Measurement Example for MR561 e Model MR561 on 1500A range 1mV A e Conductor carrying 1400A peak AC waveform Model MR561 connected to oscilloscope 1000 Arms ao O nO 600V CAT III 1500A 150A Sa 1500A OFF OUTPUT 1500A 1 mVIA 150A 10 mV A AC DC CURRENT PROBE Model MR 561 BOO 18 AC DC Current Probe Models MR461 and MR561 4 4 2 DC Measurement for MR461 with Banana BNC Connector Conductor carrying 25ADc in the direction of the arrow e DMM placed in DC volts mode e DMM displays 250 0mV with the probe in the 60A 10mV A range oN O 600V CAT III 600A OUTPUT 600A 1 mV A 60A 10 mV A AC DC CURRENT PROBE Model MR 461 Figure 4 AC DC Current Probe Models MR461 and MR561 19 CHAPTER 5 MAINTENANCE 51 Maintenance A WARNING e For maintenance use only specified replacement parts Toavoid electrical shock do not attempt to perform any servicing unless you are qualified to do so Toavoid electrical shock and or damage to the instrument do not get water or other foreign agents into the case Turn the current probe OFF and disconnect the unit from all the circuits before opening the case 5 1 1 Battery Replacement When the probe is turned on the green LED should light up If it does not replace the 9V ba
3. Connector The probes may be used with a DMM with the use of a Banana BNC Connector Cat 2111 32 Plug the probe into the display device e g DMM logger Note the polarity of the probe output banana plugs red positive black negative Select the appropriate range on the display device Note that the probe s outputs are 1mV A and 10mV A AC or DC Note the maxi mum current capability on 10mV A range Turn display device power on Turn on the Model MR the green LED should be on and the red LED off If the green indicator does not come on or goes off before the probe has operated for 10 min utes it is necessary to replace the battery After approximately 10 minutes of operation if none of the control buttons have been manipulated power will automatically shut off AC DC Current Probe Models MR461 and MR561 15 4 1 5 4 2 Auto Off The Models MR461 and MR561 have an Auto off feature which turns off the instrument after 10 minutes if no control has been used When the probe is switched off by this automatic function the switch must first be set to the off position before the probe may be powered up again Auto off may be disabled at power up by the user Simply press the auto zero button at the same time as moving the switch from the OFF position to one of the ranges The green LED blinks three times to indicate that the auto off is disabled Tips For Getting the Best Accuracy The Models MR461 and
4. 31 x 3 82 x 1 73 236 5 x 97 x 44mm Weight 160z 480g 3 4 Common Specifications MR461 amp MR561 3 4 1 ELECTRICAL Frequency Range DC to 10kHz 3 dB Load Impedance gt 100kQ 100pF Insertion Impedance 0 349mO 50Hz 58mQ 1000Hz Working Voltage 600Vrms Common Mode Voltage 600Vrms AC DC Current Probe Models MR461 and MR561 11 Influence of Adjacent Conductor lt 10mA A at 50Hz at 23mm from the probe Influence of Conductor in Jaw Opening 0 5 reading DC to 440Hz Battery 9V alkaline NEDA 1604A IEC 6LR61 Low Battery Green LED turns ON when battery voltage gt 6 5V Battery Life Approx 100H typical Overload Indication Red LED indicates input greater than the selected range Auto Off 10 minutes may be disabled at power up by pressing Zero button while turning on green LED blinks three times to indicate that auto off is disabled 3 4 2 MECHANICAL Operating Temperature Range 14 to 131 F 10 to 55 C Storage Temperature Range 40 to 176 F 40 to 80 C Temperature Influence 40mA 10K typical lt 300 ppm K or 0 3 10 K Operating Relative Humidity 10 to 35 C 90 5 RH without condensation 40 to 55 C 70 5 RH without condensation RH Influence 10 35 C 90 RH at reference Temperature lt 0 5 MR461 lt 0 1 MR561 Altitude Operating 0 to 2000m Non operating 0 to 12 000m Zero Adjustment 10A approx by increments of 25 to 40mA Case Protection IP30
5. MR561 are capable of measuring DC to 10KHz currents over a wide range Here are some key considerations for getting the most accuracy from your display instrument 16 When using the Models MR461 and MR561 with an oscilloscope it is important to select the range that provides the best resolu tion Make sure that probe jaw mating surfaces are free of dust and contamination Beware of short circuit currents Large in rush DC currents which can occur when power is first applied in a circuit and large high current transients may cause varying degrees of residual read ings If in doubt of a particular reading remove the probe from the conductor under test and check to see that the display device returns to zero If not it will be necessary to rezero the probe AC DC Current Probe Models MR461 and MR561 43 Typical Response Curves Model MR461 Typical Accuracy in DC 1 10 100 1000 Error in 1 CO 16 18 Primary current in amperes Model MR561 Typical Accuracy in DC 1 10 100 1000 10 000 0 AA 2 4 Accuracy in Primary current in amperes
6. RH reference temperature lt 0 5 Maximum Cable Diameter One 1 18 30mm or two 0 95 24mm or two bus bars 1 24 x 0 39 31 5 x 10mm Dimensions without zero knob 8 8 x 3 82 x 1 73 224 x 97 x 44mm Weight 150z 440g 33 MR561 Specifications 3 3 1 ELECTRICAL Measurement Range 150A Range 0 2 to 100AAc 150A Peak 0 4 to 150ADC 1500A Range 0 5 to 1000AAc 1400A Peak 0 5 to 1500ADC Output Signal 10mV A on 150A range 1mV A on 1500A range Accuracy 150A Range 0 5 to 100A 1 5 reading 0 5A 100 to 150ADc only 2 5 reading 1500A Range 1 to 100A 1 5 reading 1A 100 to 800A 2 5 reading 0 5A 800 to 1000A 4 reading 1000 to 1200Apc only 4 reading 10 AC DC Current Probe Models MR461 and MR561 Phase Shift 150A Range 45 to 65Hz 10 to 20A lt 3 5 20 to 100A lt 3 1500A Range 45 to 65Hz 10 to 200A lt 3 200 to 1000A lt 2 5 Overload 1500Apc and 1000AAc continuous up to 1kHz Noise 150A Range DC to 1kHz lt 8mV DC to 5kHz lt 12mV 0 1Hz to 5kHz lt 2mV 1500A Range DC to 1kHz lt 1mV DC to 5kHz lt 1 5mV 0 1Hz to 5kHz lt 500uV Rise and Fall Time 150A Range lt 100us from 10 to 90 Vout 1500A Range lt 70us from 10 to 90 Vout 3 3 2 MECHANICAL Humidity Influence 10 to 90 RH reference temperature lt 0 1 Maximum Cable Diameter One 1 6 42mm or two 0 98 25 4mm or two bus bars 1 96 x 0 19 50 x 5mm Dimensions without zero knob 9
7. an oscilloscope voltmeter or other displaying device appro priately rated for safety to the voltage of the sample being tested 8 AC DC Current Probe Models MR461 and MR561 CHAPTER 3 SPECIFICATIONS 3 1 Reference Conditions 18 to 28 C 20 to 75 RH external magnetic field lt 40 A m no external current carrying conductor test sample centered 1MQ lt 100pF load zero adjustment prior to measurement DC only DC to 65Hz Battery voltage 9V 0 1V 3 2 MR461 Specifications 3 2 1 ELECTRICAL Measurement Range 60A Range 0 2 to 40AAc 60A Peak 0 4 to GOADC 600A Range 0 5 to 400AAc 600A Peak 0 5 to GOOADC Output Signal 10mV A on 60A range 1mV A on 600A range Accuracy 60A Range 0 5 to 40A 1 5 reading 0 5A 40 to 60Apc only 1 5 reading 600A Range 0 5 to 100A 1 5 reading 1A 100 to 400A 2 0 reading 400 to 600DC only 2 5 reading Phase Shift 60A Range 45 to 65Hz 10 to 20A lt 3 5 20 to 40A lt 3 600A Range 45 to 65Hz 10 to 100A lt 3 100 to 400A lt 2 5 Overload 1500ADc and 1000AAc continuous up to 1kHz AC DC Current Probe Models MR461 and MR561 9 Noise 60A Range DC to 1kHz lt 8mV DC to 5kHz lt 12mV 0 1Hz to 5kHz lt 2mV 600A Range DC to 1kHz lt 1mV DC to 5kHz lt 1 5mV 0 1Hz to 5kHz lt 500uV Rise and Fall Time 60A Range lt 100us from 10 to 90 Vout 600A Range lt 70us from 10 to 90 Vout 3 2 2 MECHANICAL Humidity Influence 10 to 90
8. instrument while connected to any circuit or input ALWAYS connect the Model MR461 or MR561 to the display device before clamping the probe onto the sample under test e Always inspect the instrument and lead prior to use Replace any defective parts immediately e NEVER use the Model MR461 or MR561 on electrical conductors rated above 600V l International Electrical Symbols This symbol signifies that the instrument is protected by double or reinforced insulation This symbol on the instrument indicates a WARNING and that the operator must refer to the user manual for instructions before operating the instrument In this manual the symbol preceding instructions indicates that if the instructions are not followed bodily injury installation sample and product damage may result Risk of electric shock The voltage at the parts marked with this symbol may be dangerous This symbol refers to a type A current sensor This symbol signifies that application around and removal from HAZARDOUS LIVE conductors is permitted Koe P m In conformity with WEEE 2002 96 EC AC DC Current Probe Models MR461 and MR561 3 1 2 Definition of Measurement Categories CAT I For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries signal level and limited energy circuits CAT Il For measurements performed on circuits directly connected to the electrical distri
9. per IEC 529 Drop Test 1 0m on 38mm of oak on concrete test according to IEC 1010 Mechanical Shock 100G test per IEC 68 2 27 Vibration Test per IEC 68 2 6 12 AC DC Current Probe Models MR461 and MR561 Frequency Range 5 to 15Hz Amplitude 1 5mm 15 to 25Hz Amplitude 1mm 25 to 55Hz Amplitude 0 25mm Handle UL 94 VO Jaws UL 94 VO Color Dark gray with red jaws Output Double insulated 6 5 ft 2m coaxial cable with BNC connector 34 3 SAFETY C DI Electrical Double insulation or reinforced insulation between primary secondary and outer case of handle per IEC 1010 2 032 600V Category III Pollution Degree 2 300V Category IV Pollution Degree 2 7850VDpc dielectric between primary or secondary and outer hand held case Electromagnetic Compatibility Susceptibility in accordance with EN 50082 2 and EN 50082 1 Electrostatic discharge IEC 1000 4 2 Test voltages 4kV level 2 in contact aptitude criteria B 8kV level 3 in the air aptitude criteria B e Radiated Field IEC 1000 4 3 1995 with max interference of 5 of the measurement range 3V m level 3 aptitude criteria A Fast transients IEC 1000 4 4 1995 Test voltage 1kV level 2 aptitude criteria B e Magnetic fields at the frequency of the network to IEC 1000 4 8 1995 with a max distortion of 0 5A 30A m 50 Hz level 4 aptitude criteria A Emissions in accordance with EN 50081 1 Radiated emission through the case to EN 55022 199
10. selection switch e 60A 10mV A e 600A 1mV A e On Off 6 AC DC Current Probe Models MR461 and MR561 23 MR561 Features 1 6 42 mm Cable max 1 96 x 0 19 50 x 5 mm Dual Bus Bar max Y 0 98 25 mm Po Dual Cable max OUTPUT 1500A 1 mV A 150A 10 mV A AC DC CURRENT PROBE Model MR 561 INSTRUMENTS Figure 2 Jaws 8 Green light on when battery Conductor voltage gt 6 5V 9 Red light overrange and Penal guard incorrect zero adjustment Zero adjustment button BNC Connector Coaxial cable 6 5 ft 2m Three position range selection switch e 150A 10mV A e 1500A 1mV A e On Off N Ook WD AC DC Current Probe Models MR461 and MR561 7 24 Instrument Display Compatibility The Model MR461 and MR561 current probes are compatible with any hand held and bench top oscilloscope which have the following features BNC input e Range and resolution capable of displaying 1mV of output per amp of measured current Instrument accuracy of 0 3 or better to take full advantage of the probe accuracy e Input impedance of 1MQ 100 pF or greater When the probe is making a measurement the current carrying conduc tor is not broken and remains electrically isolated from the probe output As a result the probe output common may be either floated isolated or grounded A Warning User Safety Always use
11. 4 class B e Conducted emission to EN 55022 1994 class B Specifications are subject to change without notice AC DC Current Probe Models MR461 and MR561 13 4 1 14 CHAPTER 4 OPERATION Making Measurements Connect the current probe to the proper input channel on the oscil loscope Begin with the least sensitive range on the current probe 1mV A Select the 0 5V Division on your oscilloscope Turn oscilloscope power on Turn on the Model MR461 561 The green LED should be on the red LED should be off If the green indicator does not come on or goes off before the probe has oper ated for 10 minutes it is necessary to replace the battery After approximately 10 minutes of operation if none of the con trol buttons have been manipulated power will automatically shut off DC Measurement Select DC position on the oscilloscope Zero the probe With the probe disconnected from test samples no conductor in probe jaw window press the auto zero button The red LED comes on for approximately three seconds to indicate that the probe is zeroing If the red LED remains lit this indicates that zero has not been attained repeat the zeroing operation Alternatively you may zero with the oscilloscope For best accuracy especially on low level measurement it is recom mended that you zero the probe before each measurement Clamp the probe around the conductor to be tested The oscillo scope should
12. 6 or 603 749 6309 E mail repair aemc com Or contact your authorized distributor Costs for repair standard calibration and calibration traceable to N I S T are available NOTE You must obtain a CSA before returning any instrument Technical and Sales Assistance If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument please call mail fax or e mail our technical support team Chauvin Arnoux Inc d b a AEMC Instruments 200 Foxborough Boulevard Foxborough MA 02035 USA Phone 800 343 1391 508 698 2115 Fax 508 698 2118 E mail techsupport aemc com www aemc com NOTE Do not ship Instruments to our Foxborough MA address AC DC Current Probe Models MR461 and MR561 21 Limited Warranty The Model MR461 and MR561 are warranted to the owner for a period of one year from the date of original purchase against defects in manufacture This limited warranty is given by AEMC Instruments not by the distributor from whom it was purchased This warranty is void if the unit has been tampered with abused or if the defect is related to service not performed by AEMC Instruments For full and detailed warranty coverage please read the Warranty Coverage Information which is attached to the Warranty Registration Card if enclosed or is available at www aemc com Please keep the Warranty Coverage Information with your records What AEMC Ins
13. E AC DC OSCILLOSCOPE CURRENT PROBES 20 O oN O oN O 600V CAT III 600A 600V CAT III 1500A 60A 600A OFF OUTPUT 600A 1 mV A 60A 10 mV A 150A 10 mV A AC DC CURRENT PROBE AC DC CURRENT PROBE Model MR 561 E AEMC User Manual INSTRUMENTS Statement of Compliance Chauvin Arnoux Inc d b a AEMC Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards We guarantee that at the time of shipping your instrument has met its published specifications An NIST traceable certificate may be requested at the time of purchase or obtained by returning the instrument to our repair and calibration facility for a nominal charge The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer For recalibration please use our Calibration services Refer to our repair and calibration section at www aemc com Serial Catalog 1200 72 1200 73 Model MR461 MR561 Please fill in the appropriate date as indicated Date Received Date Calibration Due Chauvin Arnoux Inc d b a AEMC Instruments INSTRUMENTS www aemc com See EE Table of Contents 1 INTR0DUCTI0N N 3 1 1 International Electrical Gwmbols 3 1 2 D
14. bution system Examples are measurements on household appliances or portable tools CAT Ill For measurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installation and circuit breakers CAT IV For measurements performed at the primary electrical supply lt 1000V such as on primary overcurrent protection devices ripple control units or meters 1 3 Receiving Your Shipment Upon receiving your shipment make sure that the contents are consistent with the packing list Notify your distributor of any missing items If the equip ment appears to be damaged file a claim immediately with the carrier and notify your distributor at once giving a detailed description of any damage Save the damaged packing container to substantiate your claim 1 4 Ordering Information AC DC Oscilloscope Current Probe Model MR4671 Cat 1200 72 AC DC Oscilloscope Current Probe Model MR5671 Cat 1200 73 Both models include a 9V battery product warranty and registration card and user manual 1 4 1 Accessories and Replacement Parts Banana BNC connector XF SS 4mm plug adaptor Cat 2111 32 Order Accessories and Replacement Parts Directly Online Check our Storefront at www aemc com store for availability 4 AC DC Current Probe Models MR461 and MR561 CHAPTER 2 PRODUCT FEATURES 2 1 Description The MR probes are a line of professional AC DC curre
15. efinition of Measurement Categories 4 1 3 Receiving Your Shipment u u 4 1 4 Ordering Information u 4 1 4 1 Accessories and Replacement Parts 4 PRODUCT FEATURES 5 2 1 gerett ee Lae Se eg ee eg 5 2 21 MR461 Feature Si ua au Ee EER oe gee ee ees ee teeta 6 2 3 MR561 Features aa onien ee ER Ge AR ee ee ee ee ee ee ee Re 7 2 4 Instrument Display Compatibility 8 SPECIFICATI0NS 9 3 1 Reference Conditions u ee 9 3 2 MR461 Specifications nos 9 A Electrical EE sealed eee ioe a ee aaa 9 KE Mechanical cian ansa DE Re EE N ee eN oe see da 10 3 3 MR561 Specifications sseesseeeeenenee nne rseereeentrnrrernsreesrere nnn 10 3 351 Electricals uuu n is 10 3 3 2 Mechanical uuu anti at linda uu 11 3 4 Common Specifications MR461 amp MR561 11 341 Electrical iii did Bee vk Ee 11 34 2 Mechanical una u u EE cia lira 12 945 E EE 13 OPERATION TE 14 4 1 Making Measurement u ee 14 4 1 1 DC Measurement a 14 4 1 2 AC Measuremernt 15 4 1 3 Indicator Lights Green LED
16. now display the measured conductor current A posi tive reading indicates current flowing in the direction of the arrow located on the side of the jaw A negative reading indicates current flow in the opposite direction of the arrow Multiply the conversion ratio 1mV A or 10mV A times the V Division range on your oscil loscope to get the value of the current AC DC Current Probe Models MR461 and MR561 4 1 2 4 1 3 AC Measurement Select the AC position range on the oscilloscope The DC zero adjustment is not required when measuring AC cur rent Clamp the probe around the conductor to be tested The oscillo scope should now display the measured conductor current Apply the conversion ratio 1mV A or 10mV A times the V Division range on your oscilloscope to get the value of the peak current Indicator Lights Green LED The green LED indicates that the probe is on and that the battery is good The green LED will not light under low battery conditions Replace the 9V battery if the green LED is not lit The red LED indicates a momentary or continuous overload of the instrument Readings taken while the red LED is on or flash ing should be considered inaccurate Momentary or continuous currents exceeding 60A peak on the 60A range or 600A peak on the 600A range for the Model MR461 and 150A peak on the 150A range or 1500A on the 1500A range for the Model MR561 will trig ger the red LED Making Measurements with the Banana BNC
17. nt probes They are designed to the latest safety and performance standards Two differ ent hook shaped jaws are offered both permitting the user to pry into or hook onto cables will accept 2 x 500 MCM or small bus bars The MR series uses Hall effect technology The electronics and batteries are self contained in the handles The output of the AC DC probes is 1mV A and 10mV A An auto zero push button ensures rapid and stable zeroing There is no output filtering True RMS with DC components is possible Phase shift is excellent making the MR series well suited for power and power quality applications Model MR461 is a portable 400AAc 600A peak 600Apc current probe The unit has proportional mV output for direct readings on handheld and bench top oscilloscopes Model MR561 is a portable 1000AAc 1500A peak 1500Apc current probe that accurately measures AC or DC current waveforms using Hall effect technology AC DC Current Probe Models MR461 and MR561 5 22 MR461 Features Y 1 18 30mm Cable max SA Y 0 95 24mm Dual Cable max OUTPUT 600A 1 mV A 60A 10 mV A AC DC CURRENT PROBE Model MR 461 Figure 1 Jaws 8 Green light on when battery Conductor voltage gt 6 5V 9 Red light overrange and Protective non sip guard incorrect zero adjustment Zero adjustment button BNC Connector Coaxial cable 6 5 ft 2m Jo mF ON gt Three position range
18. truments will do Ifamalfunction occurs within the one year period you may return the instrument to us for repair provided we have your warranty registration information on file or a proof of purchase AEMC Instruments will at its option repair or replace the faulty material REGISTER ONLINE AT www aemc com Warranty Repairs What you must do to return an Instrument for Warranty Repair First request a Customer Service Authorization Number CSA by phone or by fax from our Service Department see address below then return the instrument along with the signed CSA Form Please write the CSA on the outside of the shipping container Return the instrument postage or shipment pre paid to Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Caution To protect yourself against in transit loss we recommend you insure your returned material NOTE You must obtain a CSA before returning any instrument 22 AC DC Current Probe Models MR461 and MR561 Notes AC DC Current Probe Models MR461 and MR561 23 EJAEMC INSTRUMENTS 12 11 99 MAN 100099 v10 Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 603 749 6434 Fax 603 742 2346 www aemc com
19. ttery e e e Completely disconnect the probe from the circuit under test and from the DMM or measuring instrument Turn the probe OFF Unscrew the battery compartment screw and remove cover Replace the battery and put the cover back on A Do not replace the battery while the probe is in use 5 1 2 20 Cleaning Clean the body of the clamp with a cloth lightly moistened with soapy water Wipe clean with a cloth moistened with clean water and dry Do not use solvent AC DC Current Probe Models MR461 and MR561 Repair and Calibration To ensure that your instrument meets factory specifications we recommend that it be scheduled back to our factory Service Center at one year intervals for recalibration or as required by other standards or internal procedures For instrument repair and calibration You must contact our Service Center for a Customer Service Authorization Number CSA This will ensure that when your instrument arrives it will be tracked and processed promptly Please write the CSA on the outside of the shipping container If the instrument is returned for calibration we need to know if you want a standard calibration or a calibration traceable to N I S T Includes calibration certificate plus recorded calibration data Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 234
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