AEMC JM813 User Manual

Contents

AEMC JM813 User Manual Manual pdf 1 page image

5®gedetystirores.ingh awillA#oreedAC Current ProbeModel JM813User ManualDESCRIPTIONThe JM813 (Catalog #2110.93) is designed for use in industrial environments. The “squared” jaws permitmultiple conductor or bus bar positioning. The current output makes it the perfect tool for measurementwith DMMs, recorders, power and harmonic meters. The Model JM813 is compatible with any ACammeter, multimeter, or other current measuring instrument with an input impedance lower than 0.6. Toachieve the stated accuracy, use the JM813 with the DMM having an accuracy of 0.75%.WARNINGThese safety warnings are provided to ensure the safety of personnel and proper operation of theinstrument.• Read the instruction manual completely and follow all the safety information before attemptingto use or service this instrument.• Use caution on any circuit: Potentially high voltages and currents may be present and maypose a shock hazard.• Read the Safety Specifications section prior to using the current probe. Never exceed themaximum voltage ratings given.• Safety is the responsibility of the operator.• ALWAYS connect the current probe to the display device before clamping the probe onto thesample 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 600 V in overvoltagecategory 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 reinforced insulation. Useonly factory specified replacement parts when servicing the instrument.This symbol signifies CAUTION! and requests that the user refer to the user manual beforeusing the instrument.This is a type A current sensor. This symbol signifies that application around and removalfrom HAZARDOUS LIVE conductors is permitted.DEFINITION OF MEASUREMENT CATEGORIESCat. 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 onhardwired equipment in fixed installation and circuit breakers.Cat. IV: For measurements performed at the primary electrical supply (<1000V) such as on primaryovercurrent protection devices, ripple control units, or meters.RECEIVING YOUR SHIPMENTUpon receiving your shipment, make sure that the contents are consistent with the packing list. Notifyyour distributor of any missing items. If the equipment appears to be damaged, file a claim immediatelywith the carrier and notify your distributor at once, giving a detailed description of any damage.

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