home products Calibrator DDS720/721-C single phase LCD kWh meter

DDS720/721-C single phase LCD kWh meter

Place of Origin:China	Model Number:DDS720/721-C

Company Info

Company Published: 2007
Online Postings: Products , Selling Leads
Country/Territory: Hong Kong
Business Type: Trading Company, Agent, Distributor/Wholesaler
Number of Employees: 11 - 50 People

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Terms of Payment: T/T

Detailed Product Description

DDS720/721-C single phase LCD kWh meter

APPLICATION:

The meter is used for the power measurment of single phase power consumer and suitable for concentrative reading and maintenance.

FUNCTIONS:

Measure reverse and forward energy, and reverse energy is measured as forward energy.

LCD display, it can display for a long time at power failure.

Real time clock.

RS-485 communication port.

FEATURES:

Active energy measurement, no need to calibrate for a long working time.

LSI design, less spare part, less power consumption, simple structure.

Active energy meter keep a good linear error within the range 1%Ib~Imax.

Use quality component with long service life, the accuracy cannot be affected by the frequency, temperature, voltage, harmonic. It is reliable and with long service life

RS485 communication port realizing remote meter concentrative reading.

PARAMETERS:

Model		DDS720-C	DDS721-C
Class	Class	1	2
display		LCD
Rated voltage		220V
Rated (Max.) Current		2.5(10)A 5(20)A 5(30)A 10(40)A 10(60)A 15(60)A 20(80)A
Power Loss	V circuit	1.4W/6VA
	I circuit	1VA
Working temperature		-2555
Limited temperature		-4070
Relative humidity		≤85%
Voltage range		0.7Un1.3Un
Reference frequency		50Hz/60Hz
Start current		0.004Ib
Clock error		≤0.5s/d(23)
Dimension		139mm×123mm×58mm
Net weight		Approx. 0.7kg