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
oscilloscope
for
recorder,
logger
or
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.
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.
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).
SPECIFICATION
Model
NON-INVASIVE CURRENT MEASUREMENT
Ranges (auto-ranging)
Measurement methods
Resolution
Accuracy
Crest Factor
Maximum measurable load
Maximum overload
ANALOGUE OUTPUT (2)
Switchable Instantaneous or RMS
(100 ms) output
Analogue output accuracy
LH240
40A, 200A
10mA (40A range)
100mA (200A range)
LH1040
400A, 1,000A
DC or AC True RMS, or DC only
100mA (400A range)
1A (1,000A range)
±
1.3 % of reading
±
3 digits (1)
6 maximum for True RMS measurements
1,000A DC or AC peak
10,000 Amps
1mV/A
±
1.3% of reading
±
1mV (1)
LH2040
400A, 2,000A
100mA (400A range)
1A (2,000A range)
200A DC or AC peak
2000A DC or AC peak
5mV/A
0.5mV/A
ELMES
•
HEME
•
NORMA
Voltage Measurement
Methods of measurement
Ranges (auto-ranging)
Maximum overload
Accuracy
Resolution
Crest Factor
Input impedance
AC True RMS or DC (4)
400V, 600V
1,000V
±1%
of reading
±
3 digits (1)
100mV (400V range)
1V (600V range)
6 for V < 1,000 V peak
1 MΩ
Mechanical Data:
Dimensions (H x W x D):
Weight:
Jaw Capacity:
Jaw Opening
251 x 98 x 52 mm
9.88 x 3.86 x 2.05 inches
500gm / 1.1 lbs
1 x 50 mm/ 2.0-inch
∅
cables or
2 x 30mm/ 1.2-inch
∅
cables
55mm/ 2.2 inches
Environmental Data:
Operating Temperature:
0
o
C to 50
o
C (32
o
F to 122
o
F)
±
0.1% of reading per °C
±
0.06% of reading per °F
-20
o
to 60
o
(-4
o
F to 140
o
F)
Temperature Coefficient
(Current)
Storage Temperature:
Resistance, Continuity and Diode Testing
Ω
ranges (auto-ranging)
Ω
resolution
Ω
accuracy
Continuity sounder
(Ω range only)
Input protection,
Ω
&
diode test
Diode-test 3.2V max. open
Circuit, 0.3mA short-circuit
Diode-test accuracy
Reads forward-biased diode
Voltage to 2,000 mV
±
1 % of reading
±
2 digits (1)
400
Ω,
4 kΩ
0.1
Ω
(400
Ω
range)
1
Ω
(4 kΩ range)
±
1% of reading
±
3 digits (1)
Toggled on & off by
)
)
)
) button;
Sounds when resistance < 50Ω
To 600 V, DC or sine wave RMS
Safety:
All models comply with IEC1010-1, 600V working,
Installation category III, Pollution degree 2.
Maximum Safe Voltages:
Current measurement
(bare conductors)
Voltage measurement
600V AC RMS or DC between
uninsulated conductor & ground
600V AC RMS or DC between
input terminals or between live
terminal & local ground.
Frequency Response
(Measurements and Analogue Output)
AC only True RMS V & A
DC True RMS A
DC V and A
15Hz to 1kHz (3,4)
DC + 15Hz to 1KHz (3,4)
DC only
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.
Display
Size and type
Status indication
4000-count LCD
12mm / 0.5-inch characters
Low Battery, Data
(MAX Hold), AC, DC,
3 times per second
Hold,Pk
Notes
:
1.
2.
3.
All accuracies stated at 23°C
±
1°C (73.4
±
1.8°F)
Analogue output is form plug-in adaptor with
standard BNC output socket
At stated accuracy, extend to 5kHz for 3dB point
True RMS measurements taken over 100ms
Diode Test,
Ω,
)
)
)
) (Continuity)
Refresh rate
Power Supply
Battery type
Battery life
9 V Alkaline: MN1604, PP3
IEC 6LR61 or equivalent
Typically 40 hours
4.
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
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