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LH1040 Datasheet(PDF) 1 Page - LEM

Part # LH1040
Description  True RMS AC/DC Clamp-on Multimeters
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Manufacturer  LEM [LEM]
Direct Link  http://www.lem.co.jp/HQ/en
Logo LEM - LEM

LH1040 Datasheet(HTML) 1 Page - LEM

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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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