AEMC MN352 User manual
AC Current Probe
Models MN352 and MN353
User Manual
DESCRIPTION
The Models MN352 and MN353 (Catalog #2116.26 and #2116.27) are the latest in compact AC
current probes. Designed to meet the most stringent demands in industry and electrical contracting,
they also meet the latest safety and performance standards. This probe has a measurement range
up to 240 Arms which make them perfect tools for measurements with DMMs, recorders, power and
harmonic meters. The Models MN352 and MN353 are compatible with any AC voltmeter, multimeter,
or other voltage measurement instrument that is capable of displaying 10 mV of output per amp of
measured current, an accuracy of 0.75 % or better and an input impedance of ≥ 1 MΩ.
WARNING
The safety warnings are provided to ensure the safety of personnel and proper operation of the
instrument. Read the instruction completely.
• Use caution on any circuit: potentially high voltages and currents may be present and may pose
a shock hazard.
• Do not use the probe if damaged. Always connect the current probe to the measuring device
before it is connected around the conductor.
• Do not use on non-insulated conductor with a potential to ground greater than 600 V CAT III
pollution 2. Use extreme caution when clamping around bare conductors or bus bars.
• Before each use, inspect the probe; look for cracks in housing or output cable insulation.
• Do not use clamp in wet environment or in locations that hazardous gases exist.
• Do not use the probe anywhere beyond the tactile barrier.
INTERNATIONAL ELECTRICAL SYMBOLS
Signies that the instrument is protected by double or reinforced insulation.
CAUTION - Risk of Danger! Indicates a WARNING. Whenever this symbol is present,
the operator must refer to the user manual before operation.
Application or withdrawal authorized on conductors carrying dangerous voltages. Type
A current sensor as per IEC 61010-2-032.
DEFINITION OF MEASUREMENT CATEGORIES (CAT)
CAT IV corresponds to measurements performed at the primary electrical supply (< 1000 V).
Example: primary overcurrent protection devices, ripple control units, and meters.
CAT III corresponds to measurements performed in the building installation at the distribution level.
Example: hardwired equipment in xed installation and circuit breakers.
CAT II corresponds to measurements performed on circuits directly connected to the electrical
distribution system.
Example: measurements on household appliances and 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 at once, giving a detailed description of any
damage.
ELECCTRICAL SPECIFICATIONS
Nominal Range: 150 A
Measurement Range: 0.1 to 200 A
Transformation Ratio: Voltage output
Output Signal: 10 mV/A
Accuracy and Phase Shift*:
Accuracy:
0.1 to 1 A: ≤ 3 % Reading ± 200 μV
1 to 20 A: ≤ 2 % Reading ± 200 μV
20 to 80 A: ≤ 1 % Reading
80 to 150 A: ≤ 3 % Reading
150 to 200 A: ≤ 7 % Reading
Phase Shift::
0.1 to 1 A: Not Specied
1 to 20 A: ≤ 3 °
20 to 80 A: ≤ 2 °
80 to 150 A: ≤ 3 °
150 to 200 A: ≤ 4 °
(*Reference conditions: (18 to 28) °C,
(20 to 75) % RH, external magnetic field
< 40 A/m, (48 to 65) Hz sine wave, distortion
factor less than 1 %, no DC component, no
external current carrying conductor, test sample
centered.)
Load impedance > 1 MΩ.
Frequency Range:
(40 to 10) kHz
Limit Operating Conditions:
200 A permanently to 1 kHz
Derating above 3 kHz: 200 A x (1/0.333 F), F
in kHz
Crest Factor:
3 @ 150 A peak max with an error
(due to CF) of 3 %
Overload:
240 A for 10 min ON, 30 min OFF
Working Voltage:
600 Vrms
Common Mode Voltage:
600 Vrms
Inuence of Adjacent Conductor:
< 15 mA/A at 50 Hz
Inuence of DC on AC signal:
DC Current < 10 A, < 10 %
Inuence of Conductor Position in Jaw:
0.5 % of mV output @ 50/60 Hz
Inuence of Frequency:
40 Hz to 1 kHz: 5 % of mV output
1 kHz to 10 kHz:15 % of mV output
Inuence of Load:
< 3 % of mA output from 40 Hz to 1 kHz
< 12 % of mA output from 1 kHz to 10 kHz
Inuence of Temperature:
≤ 200 ppm/°K, or 0.2 % of mV output per 10 °K
Inuence of Humidity (10 - 90% RH):
≤ 0.2 % of mV output per 10 °K @ (18 to 28)°C
MECHANICAL SPECIFICATIONS
Operating Temperature:
(-10 to 55) °C
Storage Temperature:
(-40 to 70) °C
Operating Relative Humidity:
(10 to 35) °C 85 % RH
(without roll-o above 35 °C)
Maximum Cable Diameter:
One Ø 0.78 in (20 mm), bus bar (20 x 5) mm
Cabl Protection:
IP 40 (IEC 529)
Drop Test:
Test per IEC 68-2-32:
1.0 m drop on 38 mm of Oak on concrete.
Mechanical Shock:
Test per IEC 68-2-27
Vibration:
Test per IEC 68-2-6
Dimensions:
(5.47 x 2.00 x 1.18) in (139 x 51 x 30) mm
Weight:
180 g (6.5) oz
Polycarbonate Material:
Jaws: Polycarbonate with 10 % berglass charge,
Red UL 94 V)
Case: Polycarbonate 920 A Gray
Opening Operations - Life:
> 50,000
Output:
MN352: Two standard safety banana jacks (4 mm)
MN353: Double/reinforced insulated 5 ft (1.5 m)
lead with safety 4 mm banana plug
SAFETY SPECIFICATIONS
Electrical:
Double insulation or reinforced insulation between
the primary or secondary and the outer case of the
handle conforms to IEC 1010-2-32.
Common Mode Voltage:
600 V Category III
Pollution Degree 2
Dielectric Strength:
5550 V, 50/60 Hz between primary, secondary
and the outer case of the handle
Electromagnetic Compatibility:
EN 50081-1 Class B
EN 50082-2 Electrostatic discharge
IEC 1000-4-2
Radiated eld IEC 1000-4-3
Fast transients IEC 1000-4-4
Magnetic eld at 50/60 Hz IEC 1000-4-8
ORDERING INFORMATION
AC Current Probe MN352 ................. Cat #2116.26
AC Current Probe MN353 ................. Cat #2116.27
Accessories:
Leads, set of 2, 5 ft safety
(1000 V) for Model MN352 ................ Cat #2111.29
Banana plug adapter
(to nonrecessed plug)........................Cat #1017.45
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 MN352/MN353.
• Connect the black lead of the current probe to “common” and the red lead to the AC voltage input
on your DMM or other voltage-measuring instrument. The AC current probe has an output of 10
mV/A. This means that for 200 AAC in a conductor around which the probe is clamped, 2 VAC will
come out of the probe leads to your DMM or instrument. Select the range which corresponds to
the measured current. If the current magnitude is unknown, start with the highest range and work
down until the appropriate range and resolution are reached. Clamp the probe around the conduc-
tor. Take the reading on the meter and multiply it by 100 to obtain the measured current
(e.g, 160 mV reading = 160 x 100 = 16,000 mA or 16 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 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.
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15 Faraday Drive, Dover, NH 03820 USA
(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 use or applica-
tion of this instrument, please contact our technical hotline.
LIMITED WARRANTY
The instrument 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 100160 v12 03/23
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