LY312 Three-Phase Electric Energy Meter---On-Site Calibration Instrument

Introduction

The portable calibrator L312 is especially designed for the needs of metering engineers for on-site testing with high precision. The equipment offers the highest functionality together with excellent menu-guided operation through LCD. It is the perfect instrument to reduce technical and non-technical technicallosses.


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LY312

Voltageerror range25-600V
starting measured value0.5V
rating value440V
error grade±0.05%
Currentterminalrated Ie5A
range0.025A-12A
clamp meterrated Ie5A、100A、500A、1000A
range0.5%Ie—2.4Ie
starting current0.02%Ie
Input frequency range45-65Hz
Frequency measurement error±0.01Hz
Phase measurement range-180°- 180°
The maximum of phase error±0.1°
(Harmonic wave percentage)(harmonic wave electrical data)(harmonic wave electric energy measuring times)2-51(times)
Pulse constant(note:Ie is rated current)Low frequency output(three stalls)5A3600P、36000P、360000P/kWh(kvarh、kVah)
other3600P、36000P、360000P *(5/Ie)P/kWh(kvarh、kVAh)
Internal high frequency5A1.8x109 P/kWh
other current stalls1.8x109 *(5/Ie)P/kWh
The highest pulse input frequency50kHz
5A terminalFull wave/fundamental wave kWh、P、U、I±0.05%
Full wave/fundamental wave Kvarh.Q.VA.Vah±0.2%
Harmonic wave U.I.P.Q.S±0.2%H (H=1+0.01k K=2-51)
5A clamp meterFull wave/fundamental wave kWh、P、U、I±0.2%
Full wave/fundamental wave Kvarh、Q、VA、Vah±0.2%
Harmonic wave±0.5% H (H=1+0.01k K=2-51)
Self- checking current circulating output current0.05A,0.1A,0.25A,0.5A,1A,2.5A,5A
Self-checking error (linear and angular difference)±0.1%
(Large current clamp)Full wave/fundamental wave kWh、P、U、I±0.5%
Full wave /fundamental wave Kvarh、Q、VA、Vah±0.5%
Harmonic wave U.I.P.Q±1.0% H (H=1+0.01k K=2-51)
OtherRatio measurement±0.5%