AEMC instruments MN261 User manual

ENGLISH

Model MN261

User Manual

ENGLISH

CURRENT MEASUREMENT PROBE

WITH AEMC

INSTRUMENTS

AC Current

Oscilloscope Probe

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

Tel: (800) 945-2362 or (603) 749-6434 • 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 e󰀨ort 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 prots 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

certies 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 specications.

An NIST traceable certicate 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 #: 2115.82

Model #: MN261

Please ll in the appropriate date as indicated:

Date Received:

Date Calibration Due:

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

www.aemc.com

TABLE OF CONTENTS

1. INTRODUCTION ..................................................................5

1.1 RECEIVING YOUR SHIPMENT ................................................ 6

1.2 ORDERING INFORMATION..................................................... 6

1.2.1 Accessories and Replacement Parts ................................. 6

2. PRODUCT FEATURES .......................................................7

2.1 DESCRIPTION ........................................................................... 7

2.2 COMPATIBILITY ........................................................................ 7

2.3 CONTROL FEATURES ............................................................. 8

3. SPECIFICATIONS ...............................................................9

3.1 ELECTRICAL SPECIFICATIONS ............................................. 9

3.2 MECHANICAL SPECIFICATIONS ......................................... 10

3.3 ENVIRONMENTAL SPECIFICATIONS.................................. 10

3.4 SAFETY SPECIFICATIONS ................................................... 10

3.5 TYPICAL RESPONSE CURVES ............................................ 11

4. OPERATION ...................................................................... 13

4.1 CURRENT MEASUREMENT .................................................. 13

5. MAINTENANCE ................................................................ 14

5.1 CLEANING................................................................................ 14

5.2 REPAIR AND CALIBRATION ................................................. 15

5.3 TECHNICAL ASSISTANCE .................................................... 15

5.4 LIMITED WARRANTY............................................................. 16

5.4.1 Warranty Repairs.............................................................. 16

AC Current Oscilloscope Probe Model MN261

1. INTRODUCTION

Thank you for purchasing an AEMC®Instruments AC Current Oscilloscope

Probe Model MN261.

For the best results from your instrument and for your safety, you must

read the enclosed operating instructions carefully and comply with the

precautions for use. Only qualied and trained operators should use this

product.

Symbols and Denitions

Signies that the instrument is protected by double or reinforced insulation

CAUTION - Risk of Danger! Indicates a WARNING. Whenever this symbol

is present, the operator must refer to the user manual before operation

Indicates a risk of electric shock. The voltage at the parts marked with this

symbol may be dangerous

Application or withdrawal authorized on conductors carrying dangerous

voltages. Type A current sensor per IEC 61010-2-032

Important information to acknowledge

This product complies with the Low Voltage & Electromagnetic Compatibility

European directives (73/23/CEE & 89/336/CEE)

Denition of Measurement Categories (CAT)

CAT IV corresponds to measurements performed at the primary electrical

supply (< 1000 V).

Example: primary overcurrent protection devices, ripple control units, and

meters.

CAT III corresponds to measurements performed in the building installa-

tion at the distribution level.

Example: hardwired equipment in xed installation and circuit breakers.

CAT II corresponds to measurements performed on circuits directly con-

nected to the electrical distribution system.

Example: measurements on household appliances and portable tools.

AC Current Oscilloscope Probe Model MN261

PRECAUTIONS FOR USE

These safety warnings are provided to ensure the safety of personnel and

proper operation of the instrument.

Connect the probe to the oscilloscope or voltage measuring instrument

before clamping the probe around a conductor.

Never use the probe on circuits rated higher than 600V, Cat III.

Never leave the probe clamped around a conductor while not connected

to an oscilloscope or voltage measuring instrument.

Carefully center the conductor inside the probe jaws and ascertain that

the probe is perpendicular to the conductor.

Avoid, if possible, the proximity of other conductors which may create

noise.

Check the magnetic mating surfaces of the probe jaws; these should be

free of dirt, rust, or other foreign matter.

Do not use a probe which is cracked, damaged, or has defective leads.

1.1 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, le 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.

1.2 ORDERING INFORMATION

AC Current Oscilloscope Probe Model MN261..........................Cat. #2115.82

Includes user manual and a product warranty and registration card.

1.2.1 Accessories and Replacement Parts

Adapter - BNC (Female) to 4 mm

Banana (Male) 600 V CAT III .................................................... Cat. #2119.94

Order Accessories and Replacement Parts Directly Online

Check our Storefront at www.aemc.com/store for availability

AC Current Oscilloscope Probe Model MN261

2. PRODUCT FEATURES

2.1 DESCRIPTION

The AC Current Oscilloscope Probe Model MN261 expands oscilloscope

applications in industrial or power environments, and is ideal for analysis

and measurement of distorted current waveforms and harmonics.

The Model MN261 permits accurate display and measurement of currents

from (0.1 to 240) Arms, 40 Hz to 10 kHz (with current derating) without

breaking into the circuit. A passive lter eliminates noise, ring on rapid

rising (di/dt) waveforms, and ensures accurate screen displays.

The probe connects directly to an oscilloscope through an insulated coax-

ial cable with an insulated BNC.

2.2 COMPATIBILITY

The Model MN261 is compatible with any analog or digital oscilloscope

or other voltage-measuring instrument which has the following features:

• BNC input connector

• Range capable of displaying (0.2 to 0.5) V per division, or 2 V range

• Minimum input impedance of 1 MΩ

AC Current Oscilloscope Probe Model MN261

2.3 CONTROL FEATURES

1. Jaw Opening: 0.83 in (21 mm)

2. Maximum dimension of conductor: 0.78 in (20 mm)

3. Two position switch

4. 6.5 ft (2 m) output cable

5. Arrow indicates direction of current ow. Current ows in a positive

direction when it travels from supply to load.

2.56" (65 mm)

5.31" (135 mm)

.83" (21 mm)

.73"

2.01" (51 mm)

(18.5 mm)

.1.18" (30 mm)

AC Current Oscilloscope Probe Model MN261

3. SPECIFICATIONS

3.1 ELECTRICAL SPECIFICATIONS

*Reference conditions: 23 °C ± 3 °K, 20 to 75 % RH, 48 to 65 Hz, external

magnetic eld < 40 A/m, no DC component, no external current carrying

conductor, test sample centered.

Current Range: 0.1 to 24 Arms

0.5 to 240 Arms

Output Signal: mV output signal;

2 range switch selectable on handle

100mV/A: 0.1 to 24 Arms

10mV/A: 0.5 to 240 Arms

Load Impedance: ≥1 MΩ@ ≤100 pF

Range: 10 mV/A (2 V at 200 A)

Primary

Current (0.5 to 10) A (10 to 40) A (40 to 100) A (100 to 240) A

Accuracy ≤ 3.5 % ± 5 mV ≤3 % ± 5 mV ≤ 2.5 % ± 5 mV ≤ 1.5 % ± 5 mV

Phase Shift N/A ≤ 6 ° ≤ 4 ° ≤ 3 °

Overload: 240 A for 10 mn ON, 30 mn OFF

Range: 100 mV/A (2 V at 20 A)

Overload: 120 A continuous

Accuracy: 2 % ± 50 mV

Phase Shift: not specied

Frequency Range (with current derating): 40 Hz to 10 kHz (@ -3 dB)

See Typical Response Curves (§ 3.5)

Load Impedance: 100 kΩmin

Working Voltage: 600 V CAT III

Common Mode Voltage: 600 V CAT III

Inuence of Adjacent Conductor: <15 mA/AAC @ 50 Hz

Inuence of Conductor Position in Jaw Opening:

0.5 % of Reading @ ((50/60) Hz)

Inuence of Frequency:

Range 20 A: 40 Hz to 1 kHz: 10 % of mV output

(1 to 10) kHz: 15% of mV output

Range 200 A: 40 Hz to 1 kHz: 3% of mV output

(1 to 10) kHz: 12% of mV output

AC Current Oscilloscope Probe Model MN261

3.2 MECHANICAL SPECIFICATIONS

Dimensions: (5.47 x 2.00 x 1.18) in (139 x 51 x 30) mm

Weight: 6.5 oz (150g)

Maximum Cable Diameter: 0.78 in (20 mm)

Jaw Opening: 0.83 in (21 mm) max

Maximum Conductor Size: 0.78 in (20 mm)

Envelope Protection: IP 40 (IEC 529)

Drop Test: 1 m (IEC 68-2-32)

Mechanical Shock: 100 g (IEC 68-2-27)

Vibration: (10/55/10) Hz @ 0.15 mm (IEC 68-2-6)

Output: 6 ft (2 m) insulated lead with insulated BNC Connector

3.3 ENVIRONMENTAL SPECIFICATIONS

Operating Temperature/RH: (14 to 131) °F (-10 to 55) °C; < 85 % RH

Storage Temperature: (-40 to 158) °F (-40 to 70) °C

Inuence of Temperature: ≤0.15 % / 10 K

Inuence of Humidity: (10 to 90) %; 0.2 %

Altitude: ≤ 2000 m

3.4 SAFETY SPECIFICATIONS

Indoor Use

Electrical:

Double insulation or reinforced insulation between the primary or second-

ary and the outer case of the handle per EN 61010-2-032.

Common Mode Voltage: 600V, CAT III, Pollution Degree: 2

Electromagnetic Compatibility:

Emission and immunity in an industrial environment according to the stan-

dard EN61326-1.

*Specications are subject to change without notice

E192383

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