Single Phase High Precision Reference Standard Energy Meter

Model No.︰JWT-5103A

Brand Name︰JWTRONIC

Country of Origin︰China

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Minimum Order︰-

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Product Description

JWT5103 single-phase standard watt-hour meter is a kind of multi-function high-accuracy intelligent watt-hour measurement instrument which is designed with most advanced digital electronic technology and uses high-speed DSP processor as it’s core technology. It comprises of high-speed DSP processor, two-way current frequency converter, digital controller, and digital display. Its voltage and current inputs are separated by passive transformer, so it is a kind of watt-hour measurement instrument with wide current measurement range, two-way current measurement capability, high accuracy, good stability, high overloading capacity, and strong practicability.

Technical Parameters

Input parameters	Voltage input	Input voltage（V）					40-480
		Input voltage range(v)					60、120、240、480
		Overloading capacity(v)					600
		Input load					≤0.5mA(480v)
	Current input	Input voltage(a)					0.01-100
		Input voltage(a)					100,50,25,10,5,2.5,1,0.5,、0.25,0.1,0.05,0.025
		Overloading capacity(a)					150
		Input load					≤0.3mΩ（100A-20A≤0.4mAΩ（10A-0.01A）
Output pulse frequency		fH=CH.p/3600(Hz) fL=fH/10000(Hz)
Output signal		TTL signal
accuracy	accuracy	Grade 0.05,0.1
Power accuracy	Active power accuracy	0.05%、0.1%（pf≥0.5）
	Reactive power accuracy	0.1%、0.2%（pf≥0.5）
Watt-hour accuracy	Active watt-hour accuracy					0.05%、0.1%（pf≥0.5）
	Reactive watt-hour accuracy					0.1%、0.2%（pf≥0.5）
Displayed contents	Voltage (U ),Current (I ),Active Power (P ),Apparent Power (S),Reactive Power (Q),Power Factor (Pf),Phase Angle
Power supply	220v±10%、50Hz±5%				Power Consumption		About 15VA
Pre-heating time	30min n
Operating environment	Temperature : 5degree-40degree		Relative Humidity				≤85%No corrosive gasses exist
Outer dimensions	482mm×420mm×140mm			Weight			About 7Kg