AEMC MN312 / MN313 AC Current Probes Manual PDF
Contents
1. the current probe on electrical conductors rated above 600V in overvoltage Category Ill CAT III 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 0 only factory specified replacement parts when servicing the instrument A This symbol signifies CAUTION and requests that the user refer to the user manual before using the instrument This is a type A current sensor This symbol signifies that application around and removal from HAZARDOUS LIVE conductors is permitted DEFINITION OF MEASUREMENT CATEGORIES Cat l For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries signal level and limited energy circuits Cat Il For measurements performed on circuits directly connected to the electrical distribution system Examples are measurements on household appliances or portable tools Cat Ill 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 lt 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 y2. 2 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 60Hz IEC 1000 4 8 ORDERING INFORMATION AC Current Probe MN312 Cat 2116 24 AC Current Probe MN313 Cat 2116 25 Both models include a user manual and a product warranty and registration card Accessories Leads set of 2 5 ft safety 1000V for Model MN312 0 Cat 2111 29 Banana plug adapter to non recessed 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 MN312 MN313 Connect the black lead of the current probe to common and the red lead to the AC current input on your DMM or other current measuring instrument Select the appropriate current range 400mA AC range Clamp the probe around the conductor to be tested with the arrow pointed toward the load If the reading is less than 10mA 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 102mA the current flowing through the probe is 102mA x 1000 102000mA AC 102A e For best accuracy avoid if possible the proximity of other conductors which may create noise Tips for Making Precise Measurements e When using a current pro
3. AC Current Probe Models MN312 and MN313 User Manual DESCRIPTION The MN312 313 Cat 2116 24 2116 25 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 200Arms which make them perfect tools for measurements with DMMs recorders power and harmonic meters The Models MN312 MN313 are compatible with any AC ammeter multimeter or other current measurement with an input impedance lower than 19 To achieve the stated accuracy use the MN312 MN313 with an ammeter having an accuracy of 0 75 or better 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
4. Inc d b a AEMC Instruments 15 Faraday Drive e 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 Inc d b a AEMC Instruments techsupport aemc com www aemc com ne 090 NAN 100159 v7 04 08
5. be with a meter it is important to select the range that provides the best resolution Failure to do this may result in measurement errors e 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 e For maintenance use only original factory replacement parts e To avoid electrical shock do not attempt to perform any servicing unless you are qualified to do so e 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
6. our 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 GJ AEMG INSTRUMENTS 2 56 65 mm 83 21 mm _ ELECTRICAL SPECIFICATIONS Nominal Range 200A Measurement Range 0 1 to 200A Transformation Ratio 1000 1 Output Signal 1mA A on 10 Accuracy and Phase Shift Accuracy 0 1 to 1A 2 0 Reading 0 02mA 1 to 80A 1 Reading 0 02mA 80 to 100A 1 5 Reading 0 1mA 100 to 150A 2 5 Reading 0 5mA 150 to 200A not specified Phase Shift 0 1 to 1A Not Specified 1 to 20A lt 3 20 to 80A lt 2 80 to 150A lt 2 5 Reference conditions 20 C to 26 C 20 to 75 RH external magnetic field lt 40 A m 48 to 65Hz sine wave distortion factor less than 1 no DC component no external current carrying conductor test sample centered Load impedance 19 Frequency Range 40 to 10kHz Limit Operating Conditions 200A permanently to 1kHz Derating above 3kHz 200A x 1 0 333 F F in kHz Crest Factor 3 200A peak max with an error due to CF of 3 Open Secondary Voltage 8V peak max Working Voltage 600Vrms Common Mode Voltage 600Vrms Influence of Adjacent Conductor lt 15mA A at 50Hz Influence of DC lt 10A on AC signal lt 10 Influence of Conductor Position in Jaw 0 5 of mA outp
7. ut 50 60Hz Influence of Frequency 40Hz to 1kHz 5 of mV output 1kHz to 10kHz 15 of mV output Influence of Load From 0 1Q to 5Q and 0 7V peak max lt 0 5 for output lt 0 5 for phase Influence of Temperature lt 200 ppm K or 0 2 of mA output per 10 K Influence of Humidity 10 90 RH lt 0 2 of mA output per 10 K 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 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 6 50z 180g Polycarbonate Material Jaws Polycarbonate with 10 fiberglass charge Red UL 94 VO Case Polycarbonate 920A Gray Opening Operations Life gt 50 000 Output MN312 Two standard safety banana jacks 4mm MN313 Double reinforced insulated 5 ft 1 5m lead with safety 4mm banana plug SAFETY SPECIFICATIONS cc OG Ws LISTED Electrical E192383 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 600V Category IIl Pollution Degree
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