Advertisement
OPERATION
Making Measurements with the AC Current Probe Model MN126
• Connect the black (S2) and red (S1) terminals to the 2 V range of your DMM or instrument. The MN126
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
Measured Value
• 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
15 Faraday Drive • Dover, NH 03820 USA
Tel:
(800) 945-2362 (Ext. 360)
(603) 749-6434 (Ext. 360)
Fax:
(603) 742-2346 or (603) 749-6309
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
10mV
100mA = 0.1A
®
, Inc. d.b.a. AEMC
®
®
, Inc. d.b.a. AEMC
Instruments
120mV
1200mA = 1.2A
®
Instruments
1200mV
12000mA = 12.0A
99-MAN 100318.v1 09/06
Advertisement
