三阶段的标准米

Features·High precision and long term stability ·Excellent price / performance ratio ·Universal unit for many applications ·Measuring various kinds of electric parameters in the three-phase or single phase circuit at the same time ·Calculating directly the reactive power makes the phase place very accurate in angle measurement ·Three electric energy constants only, leads to simple calibration and reliable result ·RS232 and RS485 interface, can be used with computer systemTechnical specificationPower supply Voltage Frequency Max power consumptionAC220V±10% 50Hz± 2 Hz 40VAUsing condition Environment temperature: Relative humidity Outside magnetic intensity Frequency range5°C ... 40 °C 35% ... 85% ≤0.025mT 45Hz ... 65Hz Test current Range Error 10mA ... 120A ±0.05%(1 ... 20mA)(relative range full-scale value) ±0.05%(20mA ... 120A)( relative measurement value) Current display Range Error 10.000mA ... 120.000A (1A,10A,100A) ±0.05%(relative measurement value)Test voltage Range Error Voltage display 50V ... 480V (automatic range switch) ±0.05%(10V ... 480V)( relative measurement value) Range Error 50.000(V) ... 480.000(V) ±0.05%( relative measurement value)Power measure error Active power±0.05 % (relative measurement value) 50 V ... 480 V,0.2 A ... 120 AReactive power±0.1 % ( relative measurement value) 50 V ... 480 V,0.2 A ... 120AApparent power±0.1 % ( relative measurement value) 50 V ... 480 V,0.2 A ... 120ATest Power Factor(PF=P/S) ErrorDisplay range ≤0.05% -1.00000 ... +1.00000 Power constantCH=109 imp/kWh ( 1A step) CH=108 imp/kWh( 10A step) CH=107 imp/kWh( 100A step) CL=CH/5000 Measuring modes4 wire active/reactive/factitious reactive 3 wire active/reactive/factitious reactive 2 wire active/reactiveMeasurement range of input Rated voltage Rated current 50 V ... 480 V 0.05 A ... 120 AOutput TTL pulse,load>2kW High frequency pulse output:fH Low frequency pulse output:fLDimensions(W×H×D) Weight131mm×432mm×308mm 15kg