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4 Channel Power Analyzer LMG450
4 Channel Power Analyzer LMG450
with printer and RS232-interface, CE-harmonic analysis (U,I DC till 40.) in pre-compliance, bench-type instrument in compact case,
best accuracy 0,11%, DC, 1Hz....20kHz
Measuring Ranges:
Direct voltage 6 / 12,5 / 25 / 60 / 130 / 250 / 400 / 600Vtrms ; 1600Vpk
Voltage sensor input 0,12 / 0,25 / 0,5 / 1 / 2 / 4Vtrms ; 8Vpk
Direct current 0,6 / 1,2 / 2,5 / 5 / 10 / 16Atrms ; 60Apk
Standard Accessories:
16 safety laboratory leads
Power supply cord
LMG-CONTROL-BASIC datatransfer- and visualization software on enclosed CD
LMG450-Manual
Features
Features
Measurements on three-phase motors and drives, power supplies with multiple in/outputs, transformer efficiency and vector groups, easy and accurately power measuring in switchgears, universal meter for power electronic and energy analysis.
Four independent current and voltage channels
Isolated measurement inputs with extremely low capacitance and highest dynamics CMR and interference immunity
Absolutely gap-free measuring process
Harmonic and interharmonic analysis up to 99th harmonic resp. up to 99 interharmonics
Analog and digital in/outputs
Additional inputs for current sensors
Auto-scaling current sensors compensated in phase and amplitude
PC interfaces, memory-card slot, floppy drive
Graphical colour display to show 4 to 8 measured values, wave form, diagrams of calculated values, bar charts and vector diagrams (fresnel diagrams)
Ergonomic user friendly interface
Formula editor
LabVIEW driver
Star-Delta
Conversion from phase to phase in the phase voltages and determination of the active power
For a 3-phase 3-wire system only the phase voltages U12, U23, U31 and the phase currents I1, I2, I3 are amenable to measurement. With the help of star-delta conversionline, voltages can be determined in the inaccessible phase voltages, converted into the associated active powers. In analogy, the phase currents can be converted into the "chained" currents. From the values thus calculated, all other variables, e.g. harmonics, are derived. Distortions and asymmetries of power and consumers are considered correctly. The use of an external artificial neutral point is thus superfluous, but such can be connected, if required, at any time, in case the associated disadvantages (e.g. increased power dissipation) are accepted.
Warranty
All ZES ZIMMER power meters of the LMG series, the current sensors of PCT series and the voltage sensors of the HST series are carefully tested, adjusted and calibrated prior to shipment and are subject to strict quality controls.
ZES ZIMMER guarantees for a period of 24 months from first delivery that these products are free from defects in material or workmanship.
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