AEMC instruments MD305 User Manual

AEMC instruments MD305 User Manual Manual pdf 1 page image

AC Current ProbeModel MD305User ManualDESCRIPTIONThe MD305 (Catalog #1201.36) is designed for use in industrial environments. The hookshaped jaws enable the user to “pry” into or “hook” onto cables (will accept 2 x 500 MCM) orsmaller bus bars. This device is compatible with any AC Ammeter, multimeter, or other currentmeasurement instruments with an input impedence lower than 5Ω. To achieve this statedaccuracy, use the MD305 with an ammeter with an accuracy of 0.75% or better.WARNINGThese 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 orservice this instrument.• Use caution on any circuit; 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 maximumvoltage ratings given.• Safety is the respondibility of the operator.• ALWAYS connect the current probe to the display device before clamping the probe onto the samplebeing tested.• ALWAYS inspect the instrument, probe, probe cable, and output terminals prior to use. Replace anydefective 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 SYMBOLSThis symbol signifies that the current probe is protected by double or reinforcedinsulation. Use only factory-specified replacement parts when servicing the instrument.This symbol signifies CAUTION! and requests that the user refer to the user manualbefore using the instrument.This symbol signifies that this is a type A current sensor and that application near andremoval from HAZARDOUS LIVE conductors is permitted.DEFINITION OF MEASUREMENT CATEGORIESCAT IV: For measurements performed at the primary electrical supply (<1000V), such asprimary overcurrent protection devices, ripple control units, or meters.CAT III: For measurements performed in the building installation at the distribution level, suchas hardwired equipment in fixed installation or circuit breakers.CAT II: For measurements performed on circuits directly connected to the electricaldistribution system, such as measurements on household appliances or portabletools.RECEIVING YOUR SHIPMENTUpon receiving your shipment, make sure that the contents are consistent with the packinglist. Notify your distributor of any missing items. If the equipment appears to be damaged, file aclaim immediately with the carrier, and notify your distributor with a detailed description of anydamage immediately.

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