AEMC MN114 AC Current Probe User Manual

: June 10, 2024
: AEMC

Table of Contents

DESCRIPTION
INTERNATIONAL ELECTRICAL SYMBOLS
DEFINITION OF MEASUREMENT CATEGORIES (CAT)
ELECTRICAL SPECIFICATIONS
MECHANICAL SPECIFICATIONS
SAFETY SPECIFICATIONS
ORDERING INFORMATION
OPERATION
MAINTENANCE
REPAIR AND CALIBRATION
TECHNICAL AND SALES ASSISTANCE
LIMITED WARRANTY
Documents / Resources

AEMC MN114 AC Current Probe User Manual

DESCRIPTION

The Model MN114 (Catalog #2110.71) is a high accuracy voltage output current probe for tight areas such as crowded wiring. Extends DMM AC measurements to 10 Aac. The Model MN114 offers a 5 ft lead with safety 4 mm banana plug.

WARNING

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

Read the 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 prior to using the current probe. Never exceed the maximum voltage ratings given.
Safety is the responsibility of the operator.
ALWAYS connect the current probe to the display device before clamping the probe onto the sample being tested.
ALWAYS inspect the instrument, probe, probe cable, and output terminals priorto use. Replace any defective parts immediately.
NEVER use the current probe on electrical conductors rated above 250 V. Use extreme caution when clamping around bare conductors or bus bars

INTERNATIONAL ELECTRICAL SYMBOLS

This symbol signifies that the current probe is protected by double or reinforced insulation. Use only factory-specified replacement parts when servicing theinstrument.

This symbol signifies CAUTION! and requests that the user refer to the user manual before using the instrument.

This symbol signifies that this is a type A current sensor and that application near and removal from HAZARDOUS LIVE conductors is permitted.

This symbol signifies a voltage limiting circuit.

DEFINITION OF MEASUREMENT CATEGORIES (CAT)

CAT IV: For measurements performed at the primary electrical supply (< 1000 V), such as primary overcurrent protection devices, ripple control units, or meters.

CAT III: For measurements performed in the building installation at the distribution level, such as hardwired equipment in fixed installation or circuit breakers.

CAT II: For measurements performed on circuits directly connected to the electrical distribution system, such as 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.

INSTRUMENT COMPATIBILITY
The Model MN114 is compatible with any voltmeter, multimeter, or other voltage measuring instruments with an input impedance greater than 100 KΩ. To achieve the stated accuracy, use the MN114 with a voltmeter having an accuracy of 0.75 % or better.

ELECTRICAL SPECIFICATIONS

Current Range:
1 mA to 10 Aac, continuous

Output Signal:
100 mVac/Aac (1 V @ 10 A)

*Accuracy and Phase Shift:*
(Reference conditions: 23 °C ± 3 °K, (20 to 85) %RH, (48 to 65) Hz, external magnetic field < 40 A/m, no DC component, no external current carrying conductor, test sample centered.) Load impedance 1 MΩ.

Accuracy:
1 mA to 10 A: 2 % ± 2 mA
40 Hz to 3 kHz: 3.5 % ± 2 mA
Phase Shift:
45 to 65 Hz 100 mA to 10 A: ≤ 8 °
Overload: 20 A continuous
Frequency Range:
30 to 5 kHz
Load Impedance:
100 KΩ min
Working Voltage:
250 Vac
Common Mode Voltage:
30 Vac

MECHANICAL SPECIFICATIONS

Operating Temperature:
(-13 to 122) °F (-25 to 50) °C

Storage Temperature:
(-40 to 176) °F (-40 to 80) °C
Temperature Influence:
< 0.2 % per 10 °K
Maximum Cable Diameter:
0.47 in Ø max (12 mm)
Dimensions:
(1.26 x 4.5 x 0.87) in
(32 x 115 x 22) mm
Weight:
6 oz (160 g)
Colors:
Dark gray handles with red cover
Polycarbonate Material:
Handle: 10 % Fiberglass charged polycarbonate UL 94 V0
Output:
Insulated 5 ft (1.5 m) lead with safety 4 mm banana plug

SAFETY SPECIFICATIONS

Electrical:
3 kV 50/60 Hz dielectric for 1 mn between core and output cable

ORDERING INFORMATION

AC Current Probe MN114……. Cat #2110.71

Accessories:
Banana plug adapter (to nonrecessed plug) ………… Cat #1017.45

OPERATION

Making Measurements with the AC Current Probe Model MN114

Connect the black (S2) and red (S1) terminals to the 2 V range of your DMM or instrument. The MN114 has a ratio of 10:1. This means that for 10 Aac in the conductor around which the probe is clamped, 1 Vac will come out of the probe leads to your DMM or instrument. The output is 100 mVac per Amp AC. Select the range on your DMM or instrument which best corresponds to the measured current. If the magnitude is unknown, start with the highest range (2 Vac) then work down until the appropriate range and resolution is reached. Clamp the probe around the conductor. Take the reading on the meter and multiply it by 10 to obtain the measured current. (e.g., 59 mV reading: 59 x 10 = 590 mA or 0.59 A
Meter Reading| 10 mV| 120 mV| 1200 mV
---|---|---|---
Measured V| 100 mA = 0.1 A| 1200 mA = 1.2 A| 12000 mA = 12.0 A
For best accuracy, avoid if possible, the proximity of other conductors which may create noise.

Tips for Making Precise Measurements

When using a current probe with a meter, it is important to select the range that provides the best resolution. Failure to do this may result in measurement errors.
Make sure that probe jaw mating surfaces are free of dust and contamination. Contaminants cause air gaps between the jaws, increasing the phase shift between primary and secondary. It is very critical for power measurement.

MAINTENANCE

Warning:

For maintenance use only original factory 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 allow water or other foreign agents to come into contact with the probe.

Cleaning:

To ensure optimum performance, it is important to keep the probe jaw mating surfaces clean at all times. Failure to do so may result in error in readings. To clean the probe jaws, use very fine sand paper (fine 600) to avoid scratching the jaw, and then gently clean with a soft oiled cloth.

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.

Ship To:
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments 15 Faraday Drive Dover, NH 03820 USA
Phone : 800-945-2362 (Ext. 360) or 603-749-6434 (Ext. 360)
Fax: 603-742-2346
E-mail: repair@aemc.com

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, e-mail or fax our technical support team:

Contact:
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
Phone: 800-945-2362 (Ext. 351) or 603-749-6434 (Ext. 351)
Fax: 603-742-2346
E-mail: techsupport@aemc.com

LIMITED WARRANTY

The current probe 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, 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