AEMC MN103, MN114 Operating Manual

AC Current Probe
Model MN114

User Manual

DESCRIPTION

The MN114 (Catalog #2110.71) is a high accuracy voltage output current probe for tight areas such
as crowded wiring. Extends DMM AC measurements to 10A AC. The Model MN114 offers a 5 ft lead
with safety 4mm 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 prior to use.
Replace any defective parts immediately.

• NEVER use the current probe on electrical conductors rated above 250V. 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 the instrument.

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

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

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.

PACKAGING

The AC Current Probe MN114 is shipped with this instruction manual and a product warranty and
registration card. (Register online at www.aemc.com).

INSTRUMENT COMPATIBILITY

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

ELECTRICAL SPECIFICATIONS

 =0.47" max.

(12 mm)

Black

4.53" (115 mm)

1.26"

(32 mm)

0.87"

(22 mm)

Red

Current Range:
1mA to 10A AC, continuous

Output Signal:

100mV AC/A AC
(1V @ 10A)

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 1MΩ.

Accuracy:

1mA to 10A: 2% ± 2mA
40Hz to 3kHz: 3.5% ± 2mA

Phase Shift:

45 to 65Hz
100A to 10A: ≤ 8°

Overload:

20A continuous

Frequency Range:

30 to 5kHz

Load Impedance:

100KΩ min

Working Voltage: 250V AC
Common Mode Voltage: 30V AC

Temperature Influence:

< 0.2% per 10°K

Maximum Cable Diameter:

0.47” Ø max (12mm)

Dimensions:

1.26 x 4.5 x 0.87"
(32 x 115 x 22mm)

Weight:

6oz (160g)

Colors:

Dark gray handles with red cover

Polycarbonate Material:

Handle: 10% Fiberglass charged
polycarbonate UL 94 V0

Output:

Insulated 5 ft (1.5m) lead with safety
4mm banana plug

SAFETY SPECIFICATIONS

Electrical:

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

MECHANICAL SPECIFICATIONS

Operating Temperature:

-13° to 122°F (-25° to 50°C)

Storage Temperature:

-40° to 176°F (-40° to 80°C)

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 10A AC in the conductor around which the probe is clamped, 1V
AC will come out of the probe leads to your DMM or instrument. The output is 100mV AC 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 (2V AC) 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., 59mV reading: 59 x 10 = 590mA or 0.59A).

Meter Reading 10mV 120mV 1200mV
Measured Value 100mA = 0.1A 1200mA = 1.2A 12000mA = 12.0A

• 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 get water or other foreign agents into

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, 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. 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).

Chauvin Arnoux

®

, Inc. d.b.a. AEMC® Instruments

15 Faraday Drive • Dover, NH 03820 USA

Tel: [phone] (Ext. 360)
[phone] (Ext. 360)
Fax: [phone] or [phone]

[e-mail]
(Or contact your authorized distributor)
Costs for repair, standard calibration, and calibration traceable to N.I.S.T. are available.

NOTE: All customers 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 use or
application of this instrument, please call our technical hotline:

[phone] • [phone] • Fax [phone]
Chauvin Arnoux

®

, Inc. d.b.a. AEMC® Instruments
[e-mail]
www.aemc.com

99-MAN 100086 v8 01/06