99-MAN 100162.v2 11/02
OPERATION
Making Measurements with the AC Current Probe Model MN113
•
Connect the terminals to the 2 V range of your DMM or instrument. The MN113 has a ratio of 10:1. This
means that for 10 A AC in the conductor around which the probe is clamped, 1 V AC will come out of the
probe leads to your DMM or instrument. The output is 100 mV 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 (2 V 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., 59 mV reading: 59 x 10 = 590 mA or 0.59 A).
Meter Reading
10 mV
120 mV
1200 mV
Measured Value
100 mA = 0.1 A
1200 mA = 1.2 A
12000 mA = 12.0 A
•
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:
(800) 945-2362 (Ext. 360)
(603) 749-6434 (Ext. 360)
Fax:
(603) 742-2346 or (603) 749-6309
[email protected]
(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
®
, Inc. d.b.a. AEMC
®
Instruments
[email protected]
www.aemc.com
AC Current Probe
Model MN113
User Manual
DESCRIPTION
The MN113 (Catalog #2114.99) is a high accuracy voltage output current probe for tight areas such as
crowded wiring. Extends DMM AC measurements to 10A
AC
. The Model MN113 offers a 4mm banana
jack.
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 600V in overvoltage. 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 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.
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 MN113 is shipped with this instruction manual and a product warranty and
registration card.
INSTRUMENT COMPATIBILITY
The Model MN113 is compatible with any voltmeter, multimeter, or other voltage measuring instruments
with an input impedance greater than 100 K
Ω
. To achieve the stated accuracy, use the MN113 with an
voltmeter having an accuracy of 0.75% or better.
