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)
printed in austria technical modifications reserved publication a 99000640 lem norma gmbh export department palmersstrasse 2 a-2351 wiener neudorf tel: +43(0)2236 691 0 fax: +43(0)2236 63 080 e-mail: lno@lem.com belgium & luxemburg lem belgium sprl-bvba route de petit-roeulx, 95 b-7090 braine-le-comte tel: +32(0)67 55 01 14 fax: +32(0)67 55 01 15 e-mail: lbe@lem.com great britain & ireland lem uk ltd geneva court 1 penketh place west pimbo skelmersdale, lancashire wn8 9qx tel: +44(0)1 695 72 07 77 fax: +44(0)1 695 50 704 e-mail: luk@lem.com nafta lem instruments inc. 23822 hawthorne boulevard #100 us-torrance, ca 90505 tel: +1 310 373 09 66 fax: +1 310 373 90 56 e-mail: liu@lem.com netherlands lem nederland b.v. rijzendeweg 5 nl-4634 tv woensdrecht tel: +31(0)16 46 154 62 fax: +31(0)16 46 166 06 e-mail: lne@lem.com voltage measurement methods of measurement ac true rms or dc (4) ranges (auto-ranging) 400v, 600v maximum overload 1,000v accuracy 1% of reading 3 digits (1) resolution 100mv (400v range) 1v (600v range) crest factor 6 for v < 1,000 v peak input impedance 1 m ? resistance, continuity and diode testing ? ranges (auto-ranging) 400 ? , 4 k ? ? resolution 0.1 ? (400 ? range) 1 ? (4 k ? range) ? accuracy 1% of reading 3 digits (1) continuity sounder toggled on & off by ) ) ) ) button; ( ? range only) sounds when resistance < 50 ? input protection, ? & to 600 v, dc or sine wave rms diode test diode-test 3.2v max. open reads forward-biased diode circuit, 0.3ma short-circuit voltage to 2,000 mv diode-test accuracy 1 % of reading 2 digits (1) frequency response (measurements and analogue output) ac only true rms v & a 15hz to 1khz (3,4) dc true rms a dc + 15hz to 1khz (3,4) dc v and a dc only display size and type 4000-count lcd 12mm / 0.5-inch characters status indication low battery, data hold,pk (max hold), ac, dc, diode test, ? , ) ) ) ) (continuity) refresh rate 3 times per second power supply battery type 9 v alkaline: mn1604, pp3 iec 6lr61 or equivalent battery life typically 40 hours mechanical data: dimensions (h x w x d): 251 x 98 x 52 mm 9.88 x 3.86 x 2.05 inches weight: 500gm / 1.1 lbs jaw capacity: 1 x 50 mm/ 2.0-inch ? cables or 2 x 30mm/ 1.2-inch ? cables jaw opening 55mm/ 2.2 inches environmental data: operating temperature: 0 o c to 50 o c (32 o f to 122 o f) temperature coefficient 0.1% of reading per c (current) 0.06% of reading per f storage temperature: -20 o to 60 o (-4 o f to 140 o f) safety: all models comply with iec1010-1, 600v working, installation category iii, pollution degree 2. maximum safe voltages: current measurement 600v ac rms or dc between (bare conductors) uninsulated conductor & ground voltage measurement 600v ac rms or dc between input terminals or between live terminal & local ground. lem lem offers a comprehensive range of electrical test products to ensure the safe and efficient operation of electrical equipment and installations. other products from the lem group includes systems and analysers for power quality and power quality monitoring and transducers for current and voltage measurement. lem provides complete measurement solutions in current, voltage and power quality. notes : 1. all accuracies stated at 23c 1c (73.4 1.8f) 2. analogue output is form plug-in adaptor with standard bnc output socket 3. at stated accuracy, extend to 5khz for 3db point 4. true rms measurements taken over 100ms
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