AEMC MR417, MR527 Operating Manual

ENGLISH

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AC/DC CURRENT PROBE

MR417

527

User Manual

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 N.I.S.T. 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 #: 1200.84 / 1200.85

Model #: MR417 / MR527

Please fill in the appropriate date as indicated:

Date Received:

Date Calibration Due:

Chauvin Arnoux®, Inc. d.b.a AEMC

Instruments

www.aemc.com

2 Current Probe Models MR417/MR527

CONTENTS

1 DESCRIPTION……. ......................................................................................... 7

1.1 Interface .................................................................................................................. 8

1.1.1 MR417 ................................................................................................ 8

1.1.2 MR527 ................................................................................................ 9

2 OPERATION .................................................................................................. 10

2.1 Battery Installation ................................................................................................ 10

2.2 External Power (Optional).................................................................................... 10

2.3 Turning ON the Instrument .................................................................................. 11

2.4 Auto Standby ........................................................................................................ 11

2.5 DC Zero Adjustment ............................................................................................ 11

2.6 Measurements ..................................................................................................... 12

2.6.1 Making a Measurement .................................................................... 12

2.6.2 Converting to Current ....................................................................... 12

3 SPECIFICATIONS ......................................................................................... 13

3.1 Reference Conditions .......................................................................................... 13

3.2 Electrical Specifications ....................................................................................... 13

3.2.1 Electrical Specifications, 1mV/A Sensitivity ...................................... 13

3.2.2 Frequency Specifications, 1mV/A Sensitivity .................................... 17

3.2.3 Electrical Specifications, 10mV/A Sensitivity .................................... 19

3.2.4 Frequency Specifications, 10mV/A Sensitivity .................................. 23

3.3 Operating Limits ................................................................................................... 25

3.4 Variations in the Range of Use ............................................................................ 26

3.5 Power Supply ....................................................................................................... 26

3.6 Environmental Conditions .................................................................................... 27

3.7 Mechanical Specifications ................................................................................... 28

3.7.1 Housing Protection ........................................................................... 30

3.8 International Standards ........................................................................................ 30

3.9 Electromagnetic Compatibility ............................................................................. 30

4 MAINTENANCE ............................................................................................. 31

4.1 Cleaning ................................................................................................................ 31

4.2 Battery Replacement ........................................................................................... 31

REPAIR AND CALIBRATION ........................................................................... 32

TECHNICAL AND SALES ASSISTANCE ......................................................... 32

LIMITED WARRANTY ....................................................................................... 33

Warranty Repairs ....................................................................................................... 33

Current Probe Models MR417/MR527 3

Thank you for purchasing the Current Probe Model MR417 or MR527. For best results from your instrument and for your safety, read the following operating instructions carefully and comply with the precautions for use.

This instrument is compliant with the IEC 61010-2-032 safety standard for voltages of 300V with respect to earth in measurement category IV, or 600V in category III.

Symbols

WARNING, risk of DANGER! The operator must refer to these instructions whenever this danger symbol appears.

Application or withdrawal authorized on conductors carrying dangerous voltages. Type A current sensor as per IEC 61010-2-032.

Equipment is protected by double insulation.

Battery.

USB.

Useful information or tip.

Direction of the current.

The product is declared recyclable following an analysis of the life cycle in accordance with standard ISO 14040.

The CE marking guarantees conformity with European directives and with regulations covering EMC.

The trash can with a line through it means that in the European Union, the product must undergo selective disposal for the recycling of electric and electronic material, in compliance with Directive WEEE 2002/96/EC.

Definition of Measurement Categories (CAT)

CAT IV Corresponds to measurements taken at the source of low-voltage

installations. Example: power feeders, counters and protection devices.

CAT III Corresponds to measurements on building installations. Example: distribution panel, circuit-breakers, machines or fixed industrial devices.

CAT II Corresponds to measurements taken on circuits directly connected to lowvoltage installations. Example: power supply to domestic electrical appliances and portable tools.

4 Current Probe Models MR417/MR527

PRECAUTIONS FOR USE

These instructions are intended to ensure the safety of users and proper operation of the instrument. Failure to observe these safety instructions may result in electric shock, fire, explosion, and destruction of the instrument and/or installations.

 The operator and/or the responsible authority must carefully read and clearly

understand the various precautions to be taken in use.

 Do not use the instrument on networks on which the voltage or category

exceeds instrument specifications.

 Never exceed the protection limits stated in the specifications.

 Observe the environmental conditions of use, including relative humidity,

altitude, degree of pollution, and place of use.

 Do not use the instrument if it appears to be damaged, incomplete, or not

properly closed.

 Before each use, check the condition of the insulation on the leads, housing,

and accessories. Any component on which the insulation is deteriorated (even partially) must be set aside for repair or scrapping.

 When handling the instrument, keep your fingers behind the physical guards.

 Use suitable means of protection.

 All troubleshooting and metrological checks must be performed by competent

and accredited personnel.

Current Probe Models MR417/MR527 5

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 Current Probe Model MR417 ........................................... Cat. #1200.84

Includes 9V battery, multi-language safety data sheet and user manual

AC/DC Current Probe Model MR527 ........................................... Cat. #1200.85

Includes 9V battery, multi-language safety data sheet and user manual

Replacement Parts/Accessories:

Cable – 6’ USB type A to Micro type B ............................................. Cat. #2138.66

Adapter – US Wall plug to USB ........................................................ Cat. #2153.78

6 Current Probe Models MR417/MR527

1 DESCRIPTION

The Models MR417 and MR527 are clamp-on current probes that measure DC currents up to 1400A, AC currents up to 1000A AC+DC currents without opening the circuit in which the currents flow. They indicate the shape and amplitude of the current measured in the form of a voltage.

These instruments can be used with oscilloscopes. They can be powered by a battery or with 5V

The MR417 and MR527 include the following features:

 overage indicator

 power supply indicator

 zero adjustment

uto Standby feature

 A

 two ranges (sensitivity 1 and 10mV/A)

 micro‑USB connector to connect an external power supply

via the optional micro‑USB cable.

(1400A peak), and combined

RMS

Current Probe Models MR417/MR527 7

1.1 Interface

Item

Functions

Fixed (non-mobile) jaw

Arrow indicating current flow direction

Male BNC connector

DC Zero button

OL (overload) and ON indicators. ON is green when Auto

Standby is enabled, yellow when it disabled.

3-position slide switch

USB port

Trigger

Hand guard

Mobile jaw

234

578910

1.1.1 MR417

Figure 1 (MR417)

8 Current Probe Models MR417/MR527

1.1.2 MR527

Item

Functions

Fixed (non-mobile) jaw

Arrow indicating current flow direction

Male BNC connector

DC Zero button

OL (overload) and ON indicators. ON is green when Auto

Standby is enabled, yellow when it disabled.

3-position slide switch

USB port

Trigger

Hand guard

Mobile jaw

1234578910

Figure 2 (MR527)

Current Probe Models MR417/MR527 9

2 OPERATION

Before changing batteries: set the switch to OFF and remove the clamp

123

2.1 Battery Installation

from the circuit under measurement.

1. Using a screwdriver, remove the battery compartment cover (1) from the back of the housing (see Figure 3).

2. Connect the battery to the snap-on connector (2), observing polarity.

3. Place the battery into the battery compartment (3).

4. Replace the battery compartment cover and screw it onto the housing.

Figure 3

2.2 External Power (Optional)

For long‑term measurements, you can connect the clamp to external power via any micro‑USB adapter that delivers 100mA or more. If external power is disconnected, the clamp automatically switches to battery operation.

The insulation between the type B micro‑USB connector and the measurement output is 600V CAT III. This enables you to safely connect the clamp to measuring instruments with uninsulated inputs. The type B micro‑USB connector must not be in contact with conductors or uninsulated parts at dangerous voltage.

When operating on external power, the Auto Standby feature is disabled. The color of the ON indicator shows whether automatic standby is enabled (green) or disabled (yellow).

10 Current Probe Models MR417/MR527

2.3 Turning ON the Instrument

DC Zero must be adjusted before each measurement.

Turn on the clamp by pushing the slide switch to the 1mV/A or 10mV/A setting:

 MR417

1mV/A corresponds to the 600A range 10mV/A corresponds to the 60A range

 MR527

1mV/A corresponds to the 1400A range 10mV/A corresponds to the 150A range)

The green ON indicator should light up:

 If indicator blinks, less than 4 hours of battery life remains

 If indicator fails to light, replace the battery (see § 4.2)

2.4 Auto Standby

After 10 minutes of operation without user action (such as pressing the DC Zero button), the clamp automatically enters Standby mode. In this mode, the ON indicator goes OFF.

To reactivate the clamp, press DC Zero button or change the switch to any setting other than OFF.

To disable automatic Standby, press and hold down DC Zero when turning the instrument ON. The ON indicator blinks to indicate that the request has been applied; and then glows steady yellow when you release the DC Zero button.

2.5 DC Zero Adjustment

1. Remove the clamp from the circuit under measurement.

2. Turn the clamp ON.

3. Connect the clamp to the measuring instrument. The phase is on the red

lead.

4. Press the DC Zero button.

5. The OL indicator lights for approximately three seconds to indicate that the zero adjustment is in progress.

6. If the zero has been correctly adjusted, the OL indicator goes OFF.

If it remains ON, the zero cannot be adjusted. In this case, ensure the

clamp is not on a conductor and that its jaws are correctly closed. Then press DC Zero again.

Alternately, turn the clamp OFF and then back ON. The previous zero adjustment will remain in effect.

Current Probe Models MR417/MR527 11

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