. Purpose Characteristics and scope of adaptation

The DTSY6111 series plug-in three-phase electronic prepaid energy meter is a new type of meter manufactured by our company using integrated circuits, 16 bit A/D conversion, digital multipliers, digital sampling processing technology, and single-chip processing system for data acquisition, processing, and storage, as well as SMT technology. Suitable for measuring the consumption of active energy in three-phase three wire or three-phase four wire AC power grids with a rated frequency of 50Hz or 60Hz.

Main features: Application of computer management,Purchase electricity first and then use itWithin the rated current range, the power usage can be limited (by the power supply department); One meter, one card, dedicated card, no power loss after card loss, can be used after card replacement; Electric cards can transmit data bidirectionally and automatically power off to alert users when purchasing electricity; When the battery level is zero, the power will automatically trip and cut off; And it has certain anti-theft software design, etc.

This meter is designed for fixed installation indoors and is suitable for environments with temperatures not exceeding -20 to+55 ℃, relative humidity not exceeding 85%, and free from corrosive gases in the air, as well as to avoid the influence of dust, mold, insects, etc.

Pre order amount, alarm amount, capacity limit method, and capacity limit power are encrypted and writtenICCard.

8. Electricity card usage: Insert the power purchase card into the card slot. If it is a valid power purchase card, the meter will automatically read the data into the meter. The LCD display screen will show the remaining amount, power purchase amount, total purchase amount, total power consumption, user number, and constant in sequence. Please keep the card properly when unplugged.

9. Operation display: During the operation of the electricity meter, it alternately displays the remaining amount, purchase amount, total purchase amount, total electricity consumption, user number, and constant in the meter.

10. Overcapacity alarm: During the operation of the electricity meter, if the "alarm indicator light" flashes rapidly, it warns the user that the electricity has been exceeded. If the meter is set to the over capacity power-off limit mode, then the over capacity electricity will be used60In seconds, the brake will be pulled3minute; If the user inserts the card and responds, the power supply can be immediately restored.

11Accumulation limit: If purchased electricity+remaining electricity>Accumulation limit（10000kWh)If the purchased electricity is not read in, the display will show“Error=10

”Reminder: The battery level in the card is still valid.112

Warning reminder: When the remaining amount in the table is less than the "sound and light alarm amount", the "alarm indicator light" will flash (with an interval ofDisplay a reminder to the user to purchase electricity in seconds.13. Power outage warning: When the remaining amount in the meter is less than the "trip alarm amount", the "alarm indicator light" will remain on, and the LCD will display the "trip" prompt. The relay will trip. At this time, the user can insert the power purchase card into the meter once, and the meter will close. The "alarm indicator light" will continue to stay on. At this time, the user should quickly go to the power supply department to purchase electricity to avoid being unable to purchase electricity in a timely manner and unable to use electricity. If this table cannot be found after pulling the switchICCard, can be borrowed from neighbors

IC

Insert the card to restore power supply.

2.14

2.1Power purchase reminder: When the remaining amount in the meter is less than the "alarm amount", the "alarm indicator light" will remain on as a constant reminder.

2.215(60)

(Sensory)

2.3(Capacity)

±1.0

2.4±2.0

Note: (Ib rated current Imax maximum current)

2.5start

Under the conditions of reference voltage, reference frequency, and COS φ=1.0, the instrument should be able to continuously measure electricity with a load current of 0.004Ib (1) and 0.005Ib (2).

shunt running

2.6When the rated voltage of the voltage circuit is 115% and there is no current in the current circuit, the test output of the instrument should not generate more than one pulse.

Voltage range

Normal operating voltage: 0.9Un-1.1Un

3.Maximum operating voltage: 0.8Un-1.15Un

3.1power consumption

Voltage line power consumption: ≤ 2W and 10VA

3.2Current line power consumption: ≤ 4.0VA

Working principle

5.Working principle block diagram

6.The electric energy meter obtains voltage sampling signals from the voltage divider, current sampling signals from the current transformer, voltage current product signals from the multiplier, and then generates a counting pulse with frequency proportional to the product of voltage and current through frequency conversion.

data processing

The electric energy metering pulse is sent to the CPU for processing through a photoelectric coupler, and after calculation, it is stored in a non-volatile EEPROM. The information system is managed by a computer, and through an IC card reader/writer, a certain amount of electricity and monitoring requirements are written into the IC card input table of the microprocessor system. After being processed by the CPU, it provides display, alarm, and cut-off status signals.

External dimensions

Functional terminal wiring

8. Transportation and Storage

8.1 The transportation and unpacking of electric energy meters should not be subjected to severe impacts.