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LH1040 Datasheet(PDF) 1 Page - LEM |
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LH1040 Datasheet(HTML) 1 Page - LEM |
1 / 2 page ELMES •••• HEME •••• NORMA True RMS AC/DC Clamp-on Multimeters LH40 Series •••• Three models: 200A, 1,000A and 2,000A •••• AC and DC Amps, Volts, Ohms, Diode and Continuity Test •••• Large jaw capacity takes 50mm ∅∅∅∅ or 2 x 30mm ∅∅∅∅ cables •••• True RMS measurement of complex waveforms and analysis of AC and DC current components •••• Auto-ranging and Auto-zeroing •••• Excellent accuracy, even for distorted or non- sinusoidal A and V •••• Display-Hold and Max-Hold (surge) modes for convenience in use •••• Analogue outputs for recorder, logger or oscilloscope •••• Conformance to IEC1010 and EMC standards High Accuracy Advanced jaw design means that 40-series accuracy is little affected by external magnetic fields or off-centre conductor positioning. Utilisation of Hall effect technology ensures a broad flat frequency response resulting in optimum accuracy even when harmonics are present. True RMS measurement By using True RMS measurement techniques the 40-series instruments avoid errors (up to 50%) which can occur when non- sinusoidal waveforms created by today’s complex loads are measured using traditional average-reading techniques. True RMS measurements are available for AC, DC (A, V) and AC+DC (A). IEC 1010 and EMC Conformance IEC 1010 safety features including a tactile barrier and special jaw design provide the user with confidence when making measurements in hazardous voltage areas. Conformance to EMC standards ensures high reliability through reduced susceptibility to electromagnetic interference. SPECIFICATION Model LH240 LH1040 LH2040 NON-INVASIVE CURRENT MEASUREMENT Ranges (auto-ranging) 40A, 200A 400A, 1,000A 400A, 2,000A Measurement methods DC or AC True RMS, or DC only Resolution 10mA (40A range) 100mA (200A range) 100mA (400A range) 1A (1,000A range) 100mA (400A range) 1A (2,000A range) Accuracy ± 1.3 % of reading ± 3 digits (1) Crest Factor 6 maximum for True RMS measurements Maximum measurable load 200A DC or AC peak 1,000A DC or AC peak 2000A DC or AC peak Maximum overload 10,000 Amps ANALOGUE OUTPUT (2) Switchable Instantaneous or RMS (100 ms) output 5mV/A 1mV/A 0.5mV/A Analogue output accuracy ± 1.3% of reading ± 1mV (1) |
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