AEMC instruments MN379T User Manual

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AC Current ProbeModel MN379TUser ManualDESCRIPTIONThe MN379T (Catalog #2153.02) is the latest in compact AC current probes. Designed to meet the moststringent demands in industry and electrical contracting, it also meets the latest safety and performancestandards. The probe has a measurement range up to 120Arms, a range and resolution capable ofdisplaying 10mV of output per amp of measured current, a voltmeter accuracy of 0.5% or better to takefull advantage of the accuracy of the probe and an input impedance of ≥ 1MΩ.WARNINGThe safety warnings are provided to ensure the safety of personnel and proper operation of theinstrument. Read the instruction completely.• Use caution on any circuit: potentially high voltages and currents may be present and may posea shock hazard.• Do not use the probe if damaged. Always connect the current probe to the measuring devicebefore it is connected around the conductor• Do not use on non-insulated conductor with a potential to ground greater than 600V CAT IIIpollution 2. Use extreme caution when clamping around bare conductors or bus bars.• Before each use, inspect the probe; look for cracks in housing or output cable insulation.• Do not use clamp in wet environment or in locations that hazardous gases exist.• Do not use the probe anywhere beyond the tactile barrier.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 IV: For measurements performed at the primary electrical supply (<1000V) such as on primaryovercurrent protection devices, ripple control units, or meters.CAT III: For measurements performed in the building installation at the distribution level such as onhardwired equipment in fixed installation and circuit breakers.CAT II: For measurements performed on circuits directly connected to the electrical distribution system.Examples are measurements on household appliances or portable tools.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 damagewww.calcert.com sales@calcert..610.7664 051015202530

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