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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 "common" and the red lead to the AC voltage input on
your DMM or other current measuring instrument. Select the appropriate current range (400mV
range). Clamp the probe around the conductor to be tested. Select the lower 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
• 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
A calibration check is recommended once a year. No adjustment is possible.
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
15 Faraday Drive • Dover, NH 03820 USA
Tel:
Fax:
repair@aemc.com
(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:
(800) 343-1391 • (508) 698-2115 • Fax (508) 698-2118
Chauvin Arnoux
techsupport@aemc.com
www.aemc.com
Shop for AEMC products online at:
®
, Inc. d.b.a. AEMC
(800) 945-2362 (Ext. 360)
(603) 749-6434 (Ext. 360)
(603) 742-2346 or (603) 749-6309
®
, Inc. d.b.a. AEMC
www.
®
Instruments
®
Instruments
DataLoggerStore
1.877.766.5412
.com
99-MAN 100333.v1 01/09
AC
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