AEMC Instruments AEMC MD305 Current
Contents
1. AC Current Probe Model MD305 User Manual DESCRIPTION The MD305 Catalog 1201 36 is designed for use in industrial environments The hook shaped jaws enable the user to pry into or hook onto cables will accept 2 x 500 MCM or even smaller bus bars compatible with any AC Ammeter multimeter or other current measurement instruments with an input impedance lower than 5Q To achieve the stated accuracy use the MD305 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 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 category III CAT III Use extreme caution when clamping around bare conductors or bus bars INTERNATIONAL EL2. ECTRICAL SYMBOLS o This symbol signifies that the current probe is protected by double or reinforced insulation Use 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 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
3. any damage Shop for AEMC products online at www h opAE M C com 1 877 766 5412 Pubs iviw INSTRUMENTS ELECTRICAL SPECIFICATIONS Current Range 1 to 600A AC Transformation Ratio 1000 1 Output Signal 1mA AC A AC Overload 700A for 10mn Shop for AEMC products online at www h opAE M C com 1 877 766 5412 1 18 30 mm Cable max 2 5 x 0 19 63 x 5 mm Bus Bar max 0 98 25 mm Dual Cable max Accuracy Primary 250A current 25A 100A 500A 600A Accuracy 3 1 5 1 2 Phase shift 3 1 5 1 We 600A for 20 mn max Reference conditions 23 C 5 20 to 75 RH external magnetic field lt 40 A m no DC component no external current carrying conductor test sample centered 5Q load Frequency Range 40 to 1000Hz error add 2 to ref Load Impedance 5Q max noninductive Open Secondary Voltage Limited to 10V peak max Working Voltage 600Vrms Common Mode Voltage 600Vrms Influence of Adjacent Parallel Conductor lt 30mA A at 50Hz Influence of Conductor in Jaw Opening lt 1 MECHANICAL SPECIFICATIONS Operating Temperature 5 to 122 F 15 to 50 C Storage Temperature 40 to 185 F 40 to 85 C Influence of Temperature lt 0 1 per 10 Altitude Operating 0 to 2000m Non operating 0 to 12 000m Jaw Opening 1 3 33mm Maximum Conductor Size 1 18 30
4. mm Maximum Bus Bar Size 2 48 x 0 20 63 x 5mm Envelope Protection IP 20 IEC 529 Drop Test 1 5m IEC 68 2 32 Mechanical Shock 100g IEC 68 2 27 Vibration 10 55 10 Hz 0 15mm IEC 68 2 6 Polycarbonate Material Handles 10 fiberglass charged polycarbonate UL 94 VO Dimensions 2 6 x 7 68 x 1 34 66 x 195 x 34mm Weight 14 82 oz 420g Colors Dark gray handles Output Double insulated 5 ft 1 5m lead with safety banana plugs SAFETY SPECIFICATIONS cE 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 600V Category III Pollution Degree 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 60 Hz IEC 1000 4 8 ORDERING INFORMATION Current Probe MD305 200 Cat 1201 36 Includes a user manual and a product warranty and registration card Accessories Banana plug adapter to nonrecessed plug 05 Cat 1017 45 Shop for AEMC products online at www h opAE M C com 1 877 766 5412 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 MD305 e Connect the black and red terminals to the Ampere AC range of your DMM o
5. ne 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 e 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 Shop for AEMC products online at www h opAE M C com 1 877 766 5412 99 MAN 100120 v6 09 10
6. r current measuring instrument Select the appropriate current range 2A AC range Clamp the probe around the conductor to be tested with the arrow pointed toward the load If the reading is less than 200mA 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 0 459A the current flowing through the probe is 0 459A x 1000 459A AC 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 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 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 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 fi
Download Pdf Manuals
Related Search