AEMC INSTRUMENTS Mr561 AC DC Oscilloscope Current Probes User Manual

AEMC INSTRUMENTS Mr561 AC DC Oscilloscope Current Probes

Specifications

• Product: AC/DC Oscilloscope Current Probes
• Models: MR461, MR561
• Voltage Rating: 600V CAT III
• Current Range: 60A to 600A (MR461), 150A to 1500A (MR561)
• Output Sensitivity: 1mV/A (600A), 10mV/A (60A) for MR461; 1mV/A (1500A), 10mV/A (150A) for MR561

INTRODUCTION

WARNING: These safety warnings are provided to ensure the safety of personnel and the proper operation of the instrument.

• Read this instruction manual completely and follow all the safety information before attempting to use or service this instrument.
• Use caution on any circuit: Potentially high voltages and currents may be present and may pose a shock hazard.
• Read the safety specifications section before using the Model MR461 or MR561. Never exceed the maximum working voltage rat-ings given.
• Safety is the responsibility of the operator!
• Never open the back of the 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.
• 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

Definition of Measurement Categories

• CAT IV: For measurements performed at the primary electrical supply (<1000V) such as on primary overcurrent protection devices, ripple control units, or meters.
• CAT III: For measurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installation and circuit breakers
• CAT II: For measurements performed on circuits directly connected to the electrical distribution system. Examples are measurements on household appliances or portable tools.

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 equipment 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.

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

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

PRODUCT FEATURES

Description
The MR probes are a line of professional AC/DC probes. They are designed to the latest safety and performance standards. Two different 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), 600ADC current probe. The unit has proportional mV output for direct readings on handheld and benchtop oscilloscopes.
• Model MR561 is a portable 1000AAC (1500A peak), 1500ADC current probe that accurately measures AC or DC waveforms using Hall effect technology.

MR461 Features

1. Jaws
2. Conductor
3. Protective non-slip guard
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
8. Greenlight (on when battery voltage ≥ 6.5V)
9. Red light (over range and incorrect zero adjustment)

MR561 Features

1. Jaws
2. Conductor
3. Protective non-slip guard
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
8. Greenlight (on when battery voltage ≥ 6.5V)
9. Red light (over-range and incorrect zero adjustment)

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 conductor is not broken and remains electrically isolated from the probe output. As a result, the probe output may be either floated (isolated) or grounded.

Warning: User Safety
Always use an oscilloscope, voltmeter, or other displaying device, appropriately rated for safety to the voltage of the sample being tested.

SPECIFICATIONS

Reference Conditions
18° to 28°C, 20 to 75% RH, external magnetic field < 40 A/m, no external current carrying conductor, test sample centered, 1MΩ ≤100pF load, zero adjustment prior to measurement (DC only) DC to 65Hz. Battery voltage 9V ±0.1V.

MR461 Specifications

• ELECTRICAL

  • Measurement Range
  • 60A Range:
  • 0.2 to 40AAC (60A Peak); 0.4 to 60ADC
  • 600A Range:
  • 0.5 to 400AAC (600A Peak); 0.5 to 600ADC
  • 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 60ADC 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: 1500ADC and 1000AAC continuous up to 1kHz

• Noise:

  • 60A Range:
  • DC to 1kHz ≤8mV; DC to 5kHz: ≤12mV; 0.1Hz to 5kHz: ≤2mV
  • 600A Range:
  • DC to 1kHz ≤1mV; DC to 5kHz: ≤1.5mV; 0.1Hz to 5kHz: ≤500µV

• Rise and Fall Time:

  • 60A Range: ≤100µs from 10 to 90% Vout
  • 600A Range: ≤70µs from 10 to 90% Vout

• MECHANICAL

  • Humidity Influence: 10 to 90% RH @ reference temperature ≤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: 15oz (440g)

• MR561 Specifications

  • 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 1200ADC only: 4% reading

  • Phase Shift:

  • 150A Range:

  • 45 to 65Hz, 10 to 20A: ≤3.5°; 20 to 100A: ≤3°

  • 1500A Range:

  • 45 to 65Hz, 10 to 200A: ≤3°; 200 to 1000A: ≤2.5°

  • Overload: 1500ADC and 1000AAC continuous up to 1kHz

  • Noise

  • 150A Range:

  • DC to 1kHz ≤8mV; DC to 5kHz: ≤12mV; 0.1Hz to 5kHz: ≤2mV

  • 1500A Range:

  • DC to 1kHz ≤1mV ; DC to 5kHz: ≤1.5mV; 0.1Hz to 5kHz: ≤500µV

  • Rise and Fall Time

  • • 150A Range: ≤100µs from 10 to 90% Vout

  • 1500A Range: ≤70µs from 10 to 90% Vout

  • 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)

  • 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

  • Influence of Adjacent Conductor: <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 ≥6.5V Battery Life: Approx 100H typical

  • Overload Indication: Red LED indicates input greater than the selected range

  • Auto-Off : 10 minutes (maybe disabled at power-up by pressing the Zero button while turning on; green LED blinks three times to indicate that auto-off is disabled)

  • 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  ≤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

  • Frequency Range: 5 to 15Hz, Amplitude: 1.5mm 15 to 25Hz, Amplitude: 1mm 25 to 55Hz, Amplitude: 0.25mm

  • Handle: UL 94 V0

  • Jaws : UL 94 V0

  • Color: Dark gray with red jaws

  • Output: Double insulated 6.5 ft (2m) coaxial cable with BNC connector

  • SAFETY

  • Electrical:
    Double insulation or reinforced insulation between the primary, secondary, and outer case of the handle per IEC 1010-2-032.
    600V, Category III, Pollution Degree 2
    300V, Category IV, Pollution Degree 2
    7850VDC dielectric between primary or secondary and outer hand-held case

  • Electromagnetic Compatibility:

  • Susceptibility by 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

  • 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 under EN 50081-1

  • Radiated emission through the case to EN 55022 (1994): class B

  • Conducted emission to EN 55022 (1994): class B

OPERATION

Making Measurements

• Connect the current probe to the proper input channel on the oscilloscope. Begin with the least sensitive range on the current probe (1mV/A).
• Select the 0.5V/Division on your oscilloscope.
• Turn the 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 operated for 10 minutes, it is necessary to replace the battery.
• After approximately 10 minutes of operation, if none of the control buttons have been manipulated, the 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 measurements, it is recommended that you zero the probe before each measurement.
• Clamp the probe around the conductor to be tested. The oscilloscope should now display the measured conductor current. A positive reading indicates a 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 oscilloscope to get the value of the current.

AC Measurement

• Select the AC position range on the oscilloscope.
• The DC zero adjustment is not required when measuring AC current.
• Clamp the probe around the conductor to be tested. The oscilloscope 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 flashing 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 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 maximum current capability on the 10mV/A range
• Turn the 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 minutes, it is necessary to replace the battery.
• After approximately 10 minutes of operation, if none of the control buttons have been manipulated, the power will automatically shut off.

Auto-Off

• Models MR461 and MR561 have an Auto-off feature that 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
Models MR461 and 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:

• When using Models MR461 and MR561 with an oscilloscope, it is important to select the range that provides the best solution.
• 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 re-zero the probe.

Typical Response Curves

Operation Examples

Oscilloscope Measurement Example for MR561

• Model MR561 on 1500A range (1mV/A)
• Conductor carrying 1400A peak AC waveform
• Model MR561 connected to an oscilloscope

DC Measurement for MR461 with Banana/BNC Connector

• The conductor carrying 25ADC in the direction of the arrow
• DMM placed in DC volts mode
• DMM displays 250.0mV with the probe in the 60A (10mV/A) range

MAINTENANCE

WARNING

• For maintenance use only specified replacement parts.
• To avoid electrical shock, do not attempt to perform any servicing unless you are qualified to do so.
• To avoid 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.

Battery Replacement
When the probe is turned on, the green LED should light up. If it does not, replace the 9V battery.

• 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 the cover.
• Replace the battery and put the cover back on.

WARNING: Do not replace the battery while the probe is in use.

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.

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: 603-742-2346 or 603-749-6309
• E-mail: [email protected]

(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, fax or e-mail our technical support team:

Contact: Chauvin
Arnoux®, Inc. d.b.a. AEMC® Instruments

• Phone:800-945-2362 (Ext. 351) 603-749-6434 (Ext. 351)
• Fax: 603-742-2346
• E-mail : [email protected]

Limited Warranty

• The Model MR461 and MR561 are warranted to the owner for two years 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, or abused or if the defect is related to service not performed by AEMC® Instruments.
• Full warranty coverage and product registration are available on our website at www.aemc.com/warranty.html.
• Please print the online Warranty Coverage Information for your records.
  • What AEMC® Instruments will do:
• If a malfunction occurs within the warranty period, you may return the instrument to us for repair, provided we have your warranty registration information on file or 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: [email protected]

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 repairand 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: ___

FAQ

(Frequently Asked Questions)

• Q: What is the recommended calibration interval for the AC/DC Oscilloscope Current Probes?
  • A: The recommended calibration interval for these probes is 12 months, starting from the date of receipt by the customer. For recalibration, please use the calibration services provided by the manufacturer. Refer to the repair and calibration section at www.aemc.com for more information.
• Q: Can I request an NIST traceable certificate for the probes?
  • A: Yes, you can request an NIST traceable certificate at the time of purchase or obtain one by returning the instrument to our repair and calibration facility for a nominal charge.
• Q: Where can I find the user manual?
  • A: The user manual can be found at https://manual-hub.com/.
• Q: How do I fill in the appropriate date for calibration?
  • A: Please fill in the date received and the date calibration is due in the designated spaces provided in the user manual.

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.

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

Chauvin Arnoux®, Inc. d.b.a AEMC® Instruments www.aemc.com

References

• Get Electrical Testers – Power Analyzers | AEMC Instruments
• Online Ecommerce Store | AEMC Instruments
• AEMC Warranty Registration
• Manual-Hub.com – Free PDF manuals!

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