AEMC INSTRUMENTS MN306 AC Current Probe Instruction Manual

AEMC INSTRUMENTS MN306 AC Current Probe

Product Information

• The AC Current Probe Models MN306 and MN307 are electrical measurement devices used for measuring alternating current (AC) in various circuits. These probes are designed with safety features such as double or reinforced insulation, making them suitable for use in different electrical environments. The probes are categorized as Category III (CAT III) instruments, indicating that they can be used for measurements performed in building installations at the distribution level, including fixed installations and circuit breakers.
• The probes come with specific output options. The MN306 model is equipped with two standard safety banana jacks (4mm), while the MN307 model comes with a double/reinforced insulated 5 ft (1.5m) lead with a safety 4mm banana plug. Both models include a user manual and a product warranty and registration card.
• The probes comply with various safety specifications, including double insulation or reinforced insulation between the primary or secondary and the outer case of the handle. They also meet the dielectric strength requirements specified by IEC 1010-2-32, Category III, Pollution Degree 2, with a withstand voltage of 5550V at 50/60 Hz between primary, secondary, and the outer case of the handle. The probes also meet electromagnetic compatibility standards such as EN 50081-1 Class B and EN 50082-2 for electrostatic discharge, radiated field, fast transients, and magnetic field at 50/60 Hz.

Product Usage Instructions

1. Before using the AC Current Probe, read and fully understand the warning section on page 1 of the user manual.
2. Ensure that the probe jaws’ mating surfaces are clean to maintain optimum performance. Clean the probe jaws using very fine sandpaper (fine 600) to avoid scratching and then gently clean with a soft oiled cloth.
3. In case of repair or calibration, contact the Service Center to obtain a Customer Service Authorization number (CSA#). Write the CSA# on the outside of the shipping container when returning the instrument.
4. Specify the type of calibration required, either standard calibration or calibration traceable to N.I.S.T. (includes calibration certificate plus recorded calibration data).
   For more information and detailed instructions, please refer to the user manual available at https://manual-hub.com/.

DESCRIPTION

The MN306/307 (Catalog #2116.22 and #2116.23) 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. The probes have a measurement range up to 12Arms which make them perfect tools for measurements with DMMs, recorders, power and harmonic meters. The Models MN306/MN307 are compatible with any AC voltmeter, multimeter, or other voltage measurement instrument that is capable of displaying 100mV of output per amp of measured current, voltmeter accuracy of 0.75% or better and an input impedance of ≥ 1M Ω.

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 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 category III (CAT III). Use extreme caution when clamping around bare conductors or bus bars.

INTERNATIONAL ELECTRICAL SYMBOLS

DEFINITION OF MEASUREMENT CATEGORIES

• Cat. I: For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries, signal level, and limited energy circuits.
• Cat. II: For measurements performed on circuits directly connected to the electrical distribution system. Examples are measurements on household appliances or portable tools.
• Cat. III: For measurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installation and circuit breakers.
• Cat. IV: For measurements performed at the primary electrical 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.

DIMENSION

ELECTRICAL SPECIFICATIONS

• Nominal Range: 10A

• Measurement Range: 0.1 to 12A

• Transformation Ratio: Voltage output

• Output Signal: 100mV/A (1V at 10A)

• *Accuracy and Phase Shift:**

  • Accuracy:
  • 0.1 to 0.5A: ≤ 2.5% Reading ± 0.1mV
  • 0.5 to 1A: ≤ 2.5% Reading
  • 1 to 12A: ≤ 1% Reading
  • Phase Shift:
  • .01 to 0.1A: Not Specified
  • 0.1 to 1A: ≤ 5°
  • 1 to 5A: ≤ 3°
  • 5 to 12A: ≤ 2.5°
    Reference conditions: 20°C to 26°C, 20 to 75% RH, external magnetic field <40A/m, 48 to 65Hz sine wave, distortion factor less than 1%, no DC component, no external current carrying conductor, test sample centered. Load impedance > 1MΩ.

• Frequency Range: 40 to 10kHz

• Limit Operating Conditions: 20A permanently to 10kHz; Derating above 10kHz: 20A x 0.1F (in kHz)

• Crest Factor: 3 @ 10Arms with an error (due to CF) of 3%

• Working Voltage: 600Vrms

• Common Mode Voltage: 600Vrms

• Influence of Adjacent Conductor: < 15mA/A at 50Hz

• Influence of DC on AC signal: DC Current < 2A, < 5%

• Influence of Conductor Position in Jaw: 0.5% of mV output @ 50/60Hz

• Influence of Frequency:

  • 40Hz to 1kHz: 0.5% of mV output
  • 1kHz to 10kHz: 2% of mV output

• Influence of Temperature: ≤ 150ppm/°K, or 0.15% of mV output per 10°K

• Influence of Humidity (10 – 90% RH): ≤ 0.2% of mV output per 10°K @ 18°C to 28°C

MECHANICAL SPECIFICATIONS

• Operating Temperature: 14° to 131°F (-10° to +55°C)
• Storage Temperature: -40° to 158°F (-40° to +70°C)
• Operating Relative Humidity: 10-35°C 85% RH (without roll-off above 35°C)
• Maximum Cable Diameter: One Ø 0.78” (20mm), bus bar 20 x 5mm
• Case Protection: IP 40 (IEC 529)
• Drop Test: Test per IEC 68-2-32: 1.0m drop on 38mm 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″ (139 x 51 x 30mm)
• Weight: 180g (6.5oz)
• Polycarbonate Material:
  • Jaws: Polycarbonate with 10% fiberglass charge, Red UL 94 V0
  • Case: Polycarbonate 920A Gray
• Opening Operations – Life: > 50,000
• Output:
  • MN306: Two standard safety banana jacks (4mm)
  • MN307: Double/reinforced insulated 5 ft (1.5m) lead with safety 4mm 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.

• Dielectric Strength: IEC 1010-2-32, Category III, Pollution Degree 2 5550V, 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 field IEC 1000-4-3

  • Fast transients IEC 1000-4-4

  • Magnetic field at 50/60 Hz IEC 1000-4-8

ORDERING INFORMATION

• AC Current Probe MN306 Cat #2116.22
• AC Current Probe MN307 Cat #2116.23
  Both models include a user manual and a product warranty and registration card.

Accessories:

• Leads, set of 2, 5 ft safety (1000V) for Model MN306 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 MN306/MN307

• 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 100mV/A. This means that for 10A AC in a conductor around which the probe is clamped, 1V AC 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 conductor. Take the reading on the meter and multiply it by 10 to obtain the measured current (e.g, 160mV reading = 160 x 10 = 1,600mA or 1.6A).
• 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
• 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®, Inc. d.b.a. AEMC® Instruments
• techsupport@aemc.com
• www.aemc.com

References

• Get Electrical Testers – Power Analyzers | AEMC Instruments
• Manual-Hub.com – Free PDF manuals!

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