99-MAN 100333.v1 07/13
OPERATION
Please make sure that you have already read and fully understand the WARNING section on page 1.
Making Measurements with the AC Current Probe Model MN03
• Connect the black lead of the current probe to “c ommon” and the red lead to the AC v oltage input on
your DMM or other current measuring instrument. Select the appropriate current range (400mV
AC
range). Clamp the probe around the conductor to be test ed. Select the low er range until you obtain the
best resolution. Read the value display on the DMM and multiply it by the probe ratio (1000/1). (If reading
= 59mV, the current flowing through the probe is 59 x 1000 = 59A)
• For best accuracy, avoid if possible, the proximity of other conductors which may create noise.
Tips for Making Precise Measurements
• W hen using a current probe w ith a meter, it is im portant to select the r ange that prov ides the best
resolution. Failure to do this may result in measurement errors.
• Make sure that probe jaw mating surfaces are fr ee 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 av oid electrical shock and/or damage to the in strument, do not get w ater 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 jaw s, 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 Serv ice Cent er for a Customer Serv ice Author ization 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.
Chauvin Arnoux
®
, Inc. d.b.a. AEMC
®
Instruments
15 Faraday Drive
Dover, NH 03820 USA
(800) 945-2362 (Ext. 360) • (603) 749-6434 (Ext. 360) • [email protected]
(Or contact your authorized distributor)
NOTE: All customers must obtain a CSA# before returning any instrument.
TECHNICAL AND SALES ASSISTANCE
If y ou are ex periencing any technical problems, or require any assistance w ith the proper use or
application of this instrument, please contact our technical hotline:
(800) 343-1391 • (508) 698-2115 • [email protected]
LIMITED WARRANTY
The current probe is w arranted to the owner for a period of one y ear from the dat e of original purchase
against defects in manufacture. This limited w arranty is giv en by AEMC
®
Instruments, not by the
distributor from whom it was purchased. This warranty is void if the unit has been tampered w ith, 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.
AC Current Probe
Model MN03
User Manual
DESCRIPTION
The MN03 (Cat. #2129.18) is small, compact AC current probe. Desi gned to meet the most stringent
demands in industry and electrical contracting, they also meet the latest safety and performance
standards. The probe has a measurem ent range up to 100Arms w hich makes it a perfect tool for
measurement with DMMs, recorders. The Model MN03 is compatible w ith any voltmeter, multimeter, or
other current measurement instrument w ith an input impedance greater than 1M
. To achieve the
stated accuracy, use the probe with a voltmeter having an accuracy of 0.75% or better.
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 v oltages and cu rrents may be present and may
pose a shock hazard.
• Read the Safety Specifications section prior to using the current probe. Nev er ex ceed the
maximum voltage ratings given.
• Safety is the responsibility of the operator.
• ALWAYS connect the current probe to the di splay device before clam ping the probe onto the
sample being tested.
• ALWAYS inspect the instrument, probe, probe
cable, and output termi nals prior to use.
Replace any defective parts immediately.
• NEVER use the current probe
on electrical conductors ra ted abov e 600V in overvoltage
category III (CAT III). 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.
DEFINITION OF MEASUREMENT CATEGORIES
CAT I:
For measurements on circuits not directly connected to the AC supply w all outlet such as
protected secondaries, signal level, and limited energy circuits.
CAT II:
For measurements performed on circuits directly connected to the electrical distribution sy stem.
Examples are measurements on household appliances or portable tools.
CAT III:
For measurements performed in the building inst
allation at the distribution lev el such as on
hardwired equipment in fixed installation and circuit breakers.
CAT IV:
For measurements performed at the primary el ectrical supply (<1000V) such as on primary
overcurrent protection devices, ripple control units, or meters.
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.
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