Jiangsu Yafeng Radio Instruments Factory (Group) is a high and new technology enterprise. The IC watt-hour meter with charges prepaid developed by the factory is better than similar products in our country for its performance. In order to put the product into market quickly, warmly welcome the orders from customers home and abroad.
Model DDY-862 IC watt-hour meter with charges prepaid developed by our factory, adopting advanced special micro-processor by means of intelligent design, can achieve data collecting, processing displaying storage and automatic control, has the features of low power consumption, accurate measuring, high reliability and easy installation and operation.
Main functions of the product:
(1) The function of charges prepaid: Achieving purchasing electricity
before consuming it through buying electricity card.
(2) The function of power measuring: It is operating, matching with
the original watt-hour meter without changing the measuring accuracy of
the original watt-hour meter.
(3) The function of displaying digits: Purchased volume, remain
purchased volume, accumulated volume consumed, can be read out at any time.
(4) The function of sound and light warning: As the purchased volume
has been consumed to below 10, the warning indicator flashes, then it gives
a sound warning for every degree of consumed electricity, to suggest the
customer to insert a new card.
(5) Monitoring function: As the purchased volume has been consumed,
it automatically cut off the supplying circuit.
(6) Data retaining function: Data can be retained even when the
electricity is cut off on the network.
(7) The function of card identification and read-out ability: One
card for one watt-hour meter, The user's electricity purchasing card can
only be used on a specific watt-hour meter, is won't work on any other
meters. In case the purchasing card is damaged or gets lost, it can be
re-issued in accordance with the records from the electricity sales system
without affecting the original date.
(8) The function of limiting maximum load: In case it is over the
load quota set by the electricity supplying department, it displays the
load value and gives sound and light warning for 30" and then automatically
stops supplying electricity. As soon as the load is reduced by the customer,
it resumes supplying electricity automatically.
(9) The function of electricity pilfering-proof: Common methods
of pilferage, such as reverse connection of terminals with the same symbol,
reverse digits, card detention and winding free of voltage signal, can
all be prevented.
Specifications of the product:
220V,,, 2.5£¨5£©A
220V,,, 5£¨10£©A
220V,,, 5£¨20£©A
Main technical data of the product:
a. Accuracy:grade 2.0
b. Data will be memorized automatically and be retained for 10 years.
c. 4 digits will be displayed on IED, resolution factor: 0.1¡ã
d. Watt-hour meter constant: 720 r/kwh
e. Power consumption: 2w
f. Adaptive ambient: scope of temperature:-10¡æ~+55¡æ;
relative humidity: not over 80%
g. Adaptive voltage: AC 220 V
E-mail: jsjdb@mx.js.cei.gov.cn
Tel: 86-523-6332364
