AEMC instruments MN103 Manual de usuario
AC Current Probe
Model MN103
User Manual
DESCRIPTION
The Model MN103 (Catalog #1031.02) measures leakage current and low currents from
1 mA, and measures current on 5 A secondaries. This current probe provides AC current
measuring capabilities to instruments with mV inputs. The Model MN103 oers 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 Specications 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 250 V. Use extreme caution when
clamping around bare conductors or bus bars.
INTERNATIONAL ELECTRICAL SYMBOLS
This symbol signies that the current probe is protected by double or reinforced insu-
lation. Use only factory-specied replacement parts when servicing the instrument.
This symbol signies CAUTION! and requests that the user refer to the user
manual before using the instrument.
This symbol signies that this is a type A current sensor and that application near
and removal from HAZARDOUS LIVE conductors is permitted.
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 xed 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,
le a claim immediately with the carrier and notify your distributor providing a detailed
description of any damage.
INSTRUMENT COMPATIBILITY
The Model MN103 is compatible with any AC voltmeter, multimeter, or other voltage
measurement instrument with an input impedance of 100 kΩ or greater. To achieve the
stated accuracy, use the MN103 with a voltmeter having an accuracy of 1 % or better.
CURRENT PROBE - MN103 DRAWING
ELECTRICAL SPECIFICATIONS
Current Range (low):
10 A: 1 mA to 10 AAC
Output Signal:
1 mV AC/mAAC (10 V @ 10 A)
Accuracy*:
Accuracy: 1 mA to 10 AAC
(45 to 65) Hz: ±3 % Reading ±1 mA
> (65 to 500) Hz: -2, +6 % Reading ±1 mA
Current Range (high):
100 A: (1 to 100) AAC
Output Signal:
1 mV AC/AAC
(100 mV @ 100 A)
Load Impedance:
100 KΩmin
Accuracy*:
Accuracy: 1 A to 100 AAC
(45 to 65) Hz: ±2 % Reading ±0.1 A
> (65 to 500) Hz: -2, +3 % Reading ±0.1 A
*Reference conditions: 23 °C ±3 °K,
(20 to 70) % RH, external magnetic eld
< 40 A/m, no DC component, no external
current carrying conductor, test sample
centered. Load impedance 1 MΩ.
Frequency Range:
(45 to 500) Hz
Working Voltage: 250 VAC
Common Mode Voltage: 250 VAC
Calibration Check:
Recommended once a year
MECHANICAL SPECIFICATIONS
Operating Temperature:
(14 to 122) °F (-10 to 50) °C
Storage Temperature:
(40 to 176) °F (-40 to 80) °C
Maximum Cable Diameter:
0.47 in Ø max. (12 mm)
Dimensions:
(1.26 x 4.53 x 0.87) in (32 x 115 x 22) mm
Weight:
5.6 oz (160 g)
Polycarbonate Material:
Handle: 10 % Fiberglass charged polycar-
bonate UL 94 V0
Output:
MN103:Double/reinforced insulated
5 ft (1.5 m) lead with safety 4 mm banana
plug
SAFETY SPECIFICATIONS
Electrical (IEC 414):
250 V working voltage
250 V max common mode between output
and ground
3 kV 50/60 Hz dielectric for 1 min
ORDERING INFORMATION
AC Current Probe MN103......Cat #1031.02
Accessories:
Banana plug adapter
(to non-recessed plug) ............Cat #1017.45
OPERATION
Making Measurements with the AC Current Probe Model MN103
• Connect the black lead of the current probe to “common” and the red lead to the
AC voltage range on your DMM or other voltage measuring instrument. The “10 A”
range has an output signal of 1 mV/mA AC. This means that for 10 AAC in a conductor
around which the probe is clamped, 10 VAC will come out of the probe leads to your
DMM or instrument. The “100 A” range has an output signal of 1 mV/AAC. This means
that for 100 AAC in a conductor around which the probe is clamped, 100 mVAC will
come out of the probe leads to your DMM or instrument. Select the range on your
DMM or instrument which corresponds best to the measured current. If the current
magnitude is unknown, start with the highest range rst and 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 the output signal used to obtain the
measured current. (e.g. If the meter reads 100.5 mV [range 1 mV/mA], then current
equals 100.5 mAAC). Unclamp the probe from the conductor before disconnecting it
from your DMM or instrument.
• 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 replacement parts.
• To avoid electrical shock, do not attempt to perform any service on the device unless
you are qualied 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 ne sand paper (ne 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)
(603) 749-6434 (Ext. 360)
Fax: (603) 742-2346
(Or contact your authorized distributor)
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)
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.
99-MAN 100019.v13 03/23
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