AEMC INSTRUMENTS MF 300-10-2-10 HF MiniFlex High-Frequency Flexible AC Current Probes

Copyright© Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments. All rights reserved. No part of this documentation may be reproduced in any form or by any means (including electronic storage and retrieval or translation into any other language) without prior agreement and written consent from Chauvin Arnoux®, Inc., as governed by United States and International copyright laws. Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments 15 Faraday Drive • Dover, NH 03820 USA Phone: 603-749-6434 or 800-343-1391 • Fax: 603-742-2346 This documentation is provided as is, without warranty of any kind, express, implied, or otherwise. Chauvin Arnoux®, Inc. has made every reasonable effort to ensure that this documentation is accurate; but does not warrant the accuracy or completeness of the text, graphics, or other information contained in this documentation. Chauvin Arnoux®, Inc. shall not be liable for any damages, special, indirect, incidental, or inconsequential; including (but not limited to) physical, emotional or monetary damages due to lost revenues or lost profits that may result from the use of this documentation, whether or not the user of the documentation has been advised of the possibility of such damages.

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 the instrument’s 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/calibration.

• Serial #:
• Catalog #: 2126.84 / 2126.86
• Model #: MF 300-10-2-10 HF / MF 3000-14-1-1 HF

Please fill in the appropriate date as indicated:

• Date Received:
• Date Calibration Due:

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

INTRODUCTION

Thank you for purchasing an AEMC® Instruments MiniFlex® Flexible AC Current Probe Model MF 300-10-2-10 HF or Model MF 3000-14-1-1 HF. For best results from your instrument and for your safety, read the enclosed operating instructions carefully and comply with the precautions for use. Only qualified and trained operators should use this product.

INTERNATIONAL ELECTRICAL SYMBOLS

DEFINITION OF MEASUREMENT CATEGORIES

• CAT IV: Corresponds to measurements performed at primary electrical supply (< 1000 V).
  • Example: primary overcurrent protection devices, ripple control units, and meters.
• CAT III: Corresponds to measurements performed in the building installation at the distribution level.
  • Example: hardwired equipment in fixed installation and circuit breakers.
• CAT II: Corresponds to measurements performed on circuits directly connected to the electrical distribution system.

Example: measurements on household appliances and portable tools.

PRECAUTIONS FOR USE

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

• Read this instruction manual completely and follow all the safety information before attempting to use or service this instrument.
• Safety is the responsibility of the operator. The MiniFlex® must be used only by qualified personnel using applicable safety precautions.
• Wear protective clothing and gloves as required.
• 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 current probe. Never exceed the maximum voltage ratings given.
• ALWAYS de-energize the circuit before wrapping the MiniFlex® around bare conductors, bus bars, or near live parts. Do not wrap on live conductors.
• ALWAYS connect the electronic module to the display device before wrapping the MiniFlex® around the sample being tested.
• ALWAYS inspect the module, sensor, sensor cable, and output terminals before use. Replace any defective parts immediately. Use only factory parts.
• NEVER use the MiniFlex® on electrical conductors rated above 1000 V CAT III; and 600V CAT IV.

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

• MiniFlex® 30/300 A, 10 in, 100 mV/10 mV/A High Frequency (for use with any BNC Oscilloscope)………………………………Cat. #2126.84
• MiniFlex® 3000 A, 14 in, 1 mV/A High Frequency (for use with any BNC Oscilloscope)………………………………Cat. #2126.86

Both models include a 9V battery and a user manual.

Accessories and Replacement Parts

• Adapter – BNC (female) / 4 mm Banana (male)………………. Cat. #2119.94

Order Accessories and Replacement Parts Directly Online Check our Storefront at www.aemc.com/store for availability

PRODUCT FEATURES

DESCRIPTION
The MiniFlex® HF is a compact flexible AC current transformer composed of a flexible sensor and an electronic module. It is designed to measure from 5 Hz to 1 MHz. The flexible sensor permits measurements on conductors where standard clamp-on probes could not be used. In particular, it can be installed in confined spaces, places where access is difficult, or even wrapped around irregular shapes. The MiniFlex® HF is lightweight. It does not use magnetic cores like standard transformers. The transformation principle is based on an air core. It presents virtually no load to the system under test, has a low phase shift and excellent frequency response from 5 Hz to 1 MHz at -3 db, and cannot be damaged by overloads. The sensor assembly is insulated for 1000 V CAT III; 600 V CAT IV. The MiniFlex® HF meets EN 61010 and is CE marked. The MiniFlex® HF has an mV output proportional to the current measured for direct readings on oscilloscopes, DMMs, data loggers and power or harmonic meters. TRMS measurements are taken when connected to a TRMS meter. The MiniFlex® HF is insensitive to DC currents and only the AC component of the measured signal is measured. The flexible sensor is available in lengths of 6 in and 10 in.

FEATURES

• Measures from (0.5 to 300) ARMS
• Accuracy 1 % of Reading ± 0.3 A
• TRMS measurements when connected to a TRMS instrument
• No core saturation or damage if overloaded
• 9 V battery for typical 140 h continuous operation
• 1 MHz frequency response
• Low phase shift for power measurements
• Insensitive to DC, measures only AC component on DC + AC signals
• Excellent linearity
• Lightweight
• Sensor is resistant to oils and aliphatic hydrocarbons
• EN 61010; 1000 V CAT III; 600 V CAT IV; CE Mark

CONTROL FEATURES

1. Flexible sensor 5 mm Ø
2. Sensor opening device
3. Shielded cord
4. BNC output connector
5. Green ON/OFF indicator
6. Range selection switch
7. Optional BNC (female) / Banana (male) connector

SPECIFICATIONS

1. Peak factor PF = Vpeak/VRMS
2. The residual noise affects the measurement uncertainty according to the formula:

If the current measured is zero, the uncertainty is equal to the residual noise.

Specifications are subject to change without notice

TYPICAL RESPONSE CURVES

Frequency Error

• Model MF 300-10-2-10 HF Diameter 70 mm
• Model MF 3000-14-1-1 HF Diameter 100 mm

300 A Range

3000 A Range

OPERATION

COMPATIBILITY
The MiniFlex® is compatible with any Oscilloscope, AC voltmeter, or other voltage-measuring instrument with an input impedance greater than 1 MΩ. To achieve the best overall accuracy, use the MiniFlex® with an Oscilloscope set to AC mode with an accuracy of 0.75 % or better.

TIPS FOR MAKING PRECISE MEASUREMENTS

• When using the MiniFlex® with an Oscilloscope, it is important to select the range that provides the best resolution. Failure to do this may result in measurement errors.
• For best results, select the highest MiniFlex® output signal possible and the most sensitive meter range for this output.
• Make sure the Oscilloscope or measuring instrument can accurately measure VMC.
• For best accuracy, center the MiniFlex® around the conductor to be measured.
• The overall measurement accuracy is the sum of the MiniFlex® accuracy and the displaying instrument accuracy.

MAKING MEASUREMENTS

• Connect the electronic module to the AC Volt range of an Oscilloscope input or measuring instrument. Select the highest range on the MiniFlex®.
• Press the sensor’s yellow opening device to open the flexible coil.
• Wrap the coil around the conductor to be tested. If possible, within range, select the lowest range to obtain the best resolution.
• Do not exceed specified current range for the output.
• Read the displayed value on the Oscilloscope and divide it by the range selected (i.e. if reading = 2.59 V with the 10 mV/A output range, the current flowing through the probe is 2590 mV ÷ 10 = 259 A).
• For best accuracy, carefully center the conductor inside the flexible core, and if possible, avoid being in the proximity of other conductors which may create noise and interference (particularly near the latch).

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 instrument OFF and disconnect the unit from all the circuits before opening the case.

BATTERY REPLACEMENT
The battery must be replaced when the green indicator flashes or remains off when the instrument is switched on.

• Disconnect everything connected to the instrument and set the switch to OFF.
• Use a screwdriver to unscrew the two screws on the housing.
• Replace the old battery with a new one (9V alkaline or lithium battery of type 6LF22).
• Close the housing, making sure that it is completely and correctly closed, then screw both screws back in.

CLEANING

• It is important to keep the sensor latch mating surfaces clean to prevent foreign matter from entering the closing.
• The sensor may be gently cleaned with a soft cloth, soap, and water. Dry immediately after cleaning. Avoid water penetration into the electronic module.
• Make sure the sensor, electronic module, and all leads are completely dry before any further use.

REPAIR AND CALIBRATION
To ensure that your instrument meets factory specifications, we recommend that it be sent 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#). Send an email to repair@aemc.com requesting a CSA#, you will be provided a CSA Form and other required paperwork along with the next steps to complete the request. Then return the instrument along with the signed CSA Form. 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
• E-mail: repair@aemc.com

(Or contact your authorized distributor.)
Contact us for the costs for repair, standard calibration, and calibration traceable to N.I.S.T.

NOTE: You must obtain a CSA# before returning any instrument.

TECHNICAL ASSISTANCE
If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument, please call, e-mail or fax our technical support team: Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments

• Phone: 800-343-1391 (Ext. 351)
• Fax: 603-742-2346
• E-mail: techsupport@aemc.com
• www.aemc.com

LIMITED WARRANTY

The instrument is warrantied to the owner for a period of 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 is 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 repair or replace the faulty material at our discretion.

REGISTER ONLINE AT: www.aemc.com/warranty.html

Warranty Repairs
What you must do to return an Instrument for Warranty Repair: First, send an email to repair@aemc.com requesting a Customer Service Authorization Number (CSA#) from our Service Department. You will be provided a CSA Form and other required paperwork along with the next steps to complete the request. 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 prepaid 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
• E-mail: repair@aemc.com
• Caution: To protect yourself against in-transit loss, we recommend that you insure your returned material.
• NOTE: You must obtain a CSA# before returning any instrument.

AEMC® Instruments

• 15 Faraday Drive • Dover, NH 03820 USA Phone: +1 603-749-6434 • +1 800-343-1391 • Fax: +1 603-742-2346 www.aemc.com
• 2019 Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments. All Rights Reserved.

Documents / Resources

AEMC INSTRUMENTS MF 300-10-2-10 HF MiniFlex High Frequency Flexible AC Current Probes [pdf] User Manual MF 300-10-2-10 HF, MF 3000-14-1-1 HF, MF 300-10-2-10 HF MiniFlex High Frequency Flexible AC Current Probes, MF 300-10-2-10 HF, MiniFlex High Frequency Flexible AC Current Probes, Frequency Flexible AC Current Probes, Flexible AC Current Probes, Current Probes, Probes

References

• User Manual