特性?4位半顯示（19999）?單相2線，3相3線，3相4線電力量測?瓦特錶，虛功錶，功率固數錶?DIN規格96 48mm.詳細規格Display..............41/2(19999)0.56〞(14.2mm),RedLEDAccuracy...................................Watt 0.25%F.S. 3digitsVAR 0.1%F.S. 3digitsCOS 1%F.S. 1digitMax.inputovercapability..........Amp.3 ratedcontinuous10 ratedfor10sec50 ratedfor1secondVolt./750VcontinuousConversionrate(about).............................................1/sec.Inputburden............................Volt.input≦0.7VA/PhaseAmp.input≦0.7VA/PhaseOverinputindication......................................... 0000 flashFrequencyrange........................45～400HzforACrangeOperatingtemp....................................................0～60℃Storagetemp....................................................-10～70℃Temp.coefficient.......................................................................................≦100PPM/℃,≦60PPM/℃,25℃ 10℃Max.relativehumidity...............................................95%Dielectricstrength.....AC2KV/1min.(input/power/case)Surgetest..............................4KV/1.2 50 s,IEC255-4Aux.power...................AC115V/230V 10%,50/60HzDC24V,48V,110V, 20%(option)Powerconsumption...........................AC3.5VA,DC3WWeight(about)........................................................470gCIRCUIT