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AC/DC OSCILLOSCOPE
CURRENT PROBES
E N G L I S H
Shop for AEMC products online at:
OL
ON
600V CAT III - 600A
60A
600A
OFF
!
OUTPUT:
600A: 1 mV/A
60A: 10 mV/A
AC/DC CURRENT PROBE
Model MR 461
User Manual
ShopAEMC
www.
MR461
MR561
OL
ON
600V CAT III - 1500A
150A
1500A
OFF
!
OUTPUT:
1500A: 1 mV/A
150A: 10 mV/A
AC/DC CURRENT PROBE
Model MR 561
.ca
1.800.561.8187
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Summary of Contents for AEMC MR561
- Page 1 600A: 1 mV/A 1500A: 1 mV/A 60A: 10 mV/A 150A: 10 mV/A AC/DC CURRENT PROBE AC/DC CURRENT PROBE Model MR 461 Model MR 561 E N G L I S H User Manual ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
- Page 2 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 ® ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
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Page 3: Table Of Contents
3.4.2 Mechanical ..............12 3.4.3 Safety ................13 4. OPERATION .................. 14 4.1 Making Measurements ............14 4.1.1 DC Measurement ............14 4.1.2 AC Measurement ............15 4.1.3 Indicator Lights: Green LED ........15 4.1.4 Making Measurements with the Connector ....15 4.1.5 Auto-Off ...............16 4.2 Tips For Getting the Best Accuracy ........16 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... - Page 4 4.3 Typical Response Curves ............17 4.4 Operation Examples ...............18 5. MAINTENANCE ................20 5.1 Maintenance ................20 5.1.1 Battery Replacement ..........20 5.1.2 Cleaning ..............20 Limited Warranty ...................22 Warranty Repairs ...................22 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
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Page 5: Introduction
• ALWAYS connect the Model MR461 or MR561 to the display device before clamping the probe onto the sample under test. • Always inspect the instrument and lead prior to use. Replace any defective parts immediately. • NEVER use the Model MR461 or MR561 on electrical conductors rated above 600V. International Electrical Symbols This symbol signifies that the instrument is protected by double or reinforced insulation. -
Page 6: Definition Of Measurement Categories
Save the damaged packing container to substantiate your claim. Ordering Information AC/DC Oscilloscope Current Probe Model MR461 ..... Cat. #1200.72 AC/DC Oscilloscope Current Probe Model MR561 ..... Cat. #1200.73 Both models include a 9V battery and user manual. 1.4.1 Accessories and Replacement Parts Banana/BNC connector XF-SS (4mm plug adaptor) ... Cat. #2111.32 AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 7: Product Features
The MR probes are a line of professional AC/DC current 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 400A (600A peak), 600A current probe. The unit has proportional mV output for direct readings on handheld and bench top oscilloscopes. Model MR561 is a portable 1000A (1500A peak), 1500A current probe that accurately measures AC or DC current waveforms using Hall effect technology. AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 8: Mr461 Features
Model MR 461 Figure 1 1. Jaws 8. Green light (on when battery voltage ≥ 6.5V) 2. Conductor 9. Red light (overrange and 3. Protective non-slip guard incorrect zero adjustment) 4. Zero adjustment button 5. BNC Connector 6. Coaxial cable 6.5 ft (2m) 7. Three-position range selection switch: • 60A (10mV/A) • 600A (1mV/A) • On/Off AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 9: Mr561 Features
Model MR 561 Figure 2 1. Jaws 8. Green light (on when battery voltage ≥ 6.5V) 2. Conductor 9. Red light (overrange and 3. Protective non-slip guard incorrect zero adjustment) 4. Zero adjustment button 5. BNC Connector 6. Coaxial cable 6.5 ft (2m) 7. Three-position range selection switch: • 150A (10mV/A) • 1500A (1mV/A) • On/Off AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 10: Instrument Display Compatibility
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 • 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 • Input impedance of 1MΩ/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. Warning: User Safety Always use an oscilloscope, voltmeter or other displaying device, appro- priately rated for safety to the voltage of the sample being tested. AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 11: Specifications
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 60A 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: ≤ 3.5°; 20 to 40A: ≤ 3° 600A Range: 45 to 65Hz, 10 to 100A: ≤ 3°; 100 to 400A: ≤ 2.5° Overload: 1500A and 1000A continuous up to 1kHz AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 12: Mechanical
150A Range: 0.2 to 100A (150A Peak); 0.4 to 150A 1500A Range: 0.5 to 1000A (1400A Peak); 0.5 to 1500A 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 150A 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 1200A only: 4% reading AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 13: Mechanical
3.3.2 MECHANICAL Humidity Influence: 10 to 90% RH @ reference temperature ≤ 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): 9.31 x 3.82 x 1.73" (236.5 x 97 x 44mm) Weight: 16oz (480g) Common Specifications (MR461 & MR561) 3.4.1 ELECTRICAL Frequency Range: DC to 10kHz @ -3 dB Load Impedance: >100kΩ/100pF Insertion Impedance: 0.39mΩ @ 50Hz, 58mΩ @1000Hz Working Voltage: 600Vrms Common Mode Voltage: 600Vrms AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. -
Page 14: Mechanical
Temperature Influence: 40mA/10K typical ≤ 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: ≤0.5% (MR461); ≤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 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 AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 15: Safety
• 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 • 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 (1994): class B • Conducted emission to EN 55022 (1994): class B *Specifications are subject to change without notice AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 16: Operation
– 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 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 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 17: Ac Measurement
4.1.4 Making Measurements with the Banana/BNC 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 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 18: Auto-Off
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 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 19: Typical Response Curves
Typical Response Curves Model MR461 Typical Accuracy in DC 1000 Primary current in amperes Model MR561 Typical Accuracy in DC 1000 10,000 Primary current in amperes AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... -
Page 20: Operation Examples
Operation Examples 4.4.1 Oscilloscope Measurement Example for MR561 • Model MR561 on 1500A range (1mV/A) • Conductor carrying 1400A peak AC waveform • Model MR561 connected to oscilloscope 1000 A rms 600V CAT III - 1500A 1.4 V 150A 1500A OUTPUT: 1500A: 1 mV/A 150A: 10 mV/A AC/DC CURRENT PROBE Model MR 561 -1.4 V... - Page 21 • DMM displays 250.0mV with the probe in the 60A (10mV/A) range 25 A DC 250.0 600V CAT III - 600A 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 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
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Page 22: Maintenance
• 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. Do not replace the battery while the probe is in use. 5.1.2 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 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:... - Page 23 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
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Page 24: Limited Warranty
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. Full warranty coverage and product registration is available on our website at www.aemc.com/warranty.html. - Page 25 Notes: AC/DC Current Probe Models MR461 and MR561 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
- Page 26 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
- Page 27 ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
- Page 28 08/13 99-MAN 100099 v11 Chauvin Arnoux , Inc. d.b.a. AEMC Instruments ® ® ShopAEMC www. 1.800.561.8187 Shop for AEMC products online at:...
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