DTSF866 Three Phase Four Wire Multi-tariff Electronic Watt-hour Meter(DSM866CF-02)

APPLICATION

DSM866CF three phase four wire electronic multi-tariff active energy meter,LCD display.

The meter is used to measure 50Hz or 60Hz active energy consumption from three phase four wire AC electricity net.

The meter adopts LSI (Large-scale Integration) and SMTmanufacturing technique,the key components and part all adopt long life type.

The meter is widely used in office buildings,shopping malls,residences,airports and metro,etc.

The meter measures consumption in different tariff in different time period.

FUNCTIONS AND FEATURES

♦Measurement function:

1.Measure bidirectional active energy; (reverse energy is calculated as positive energy), and store its data.

2.The total, peak, apex, level, valley electric energy consumptions are separately measured and stored.

3.The communication, time zone switch, repeated power out and on, will not affect the measurement accuracy of the meter.

4.Store multi-tariff energy data of 12 months including current month, data transfer store dividing-line time is automatic read meter date. Can freeze and transfer store the data of electric energy on any hour of any given day between 1st and 28th in each month.

5.Data is stored in EEPROM when power-cut, and data can be kept for more than ten years.

♦Period of time and rate function

1. Program set peak, apex, level, valley /day hour, valley/low load 4 rates 10 period of time, from small to large array. The minimum period of time interval is 1 minute, period of time set can span clock zero.

2. Random period of time start and stop real time and set time error not more than 5s.

3. Adopts inset crystal hardware clock circuit, with temperature compensation circuit to ensure under the normal working conditions, the time error of clock to be within 30s/month.Automatically adjust the time,date and leap year automatic transfer.

4. The meter has a spare lithium battery in order to keep it continuous working when power is off. With the capacity of more than 1.0Ah and a long life time over 10 years, the battery can continuous work more than 3 years.

♦Display and surveillance

1.Large wide temperature (-40ºC--80ºC) LCD display.

2. 6+2 digit LCD display.

3. LCD cycle displays the data of date,time,current total consumption,peak,apex,level,valley,time,etc.,The default time of display interval is 5s. The data display can be reset according to the requirement, we can set up Max.32 items.

4.The meter has the function of remain LCD display recycled after pressing the button after power cut.The time display will be the same as before pressing the button. LCD would not display if not press the button in 20 seconds.

♦ Communication function

1. PC via infrared communication or RS485 communication, complete programming settings and meter reading.

2. Infrared communication interface: communication distance ≥4m,communication angle: ≥±15o

3. RS485 communication: baud rate 1200bps/s,semiduplex,RS485 communication circuit is separated with inner meter circuit, communication distance:1200m,electric parameter is conform to DL/T645-97 protocol.

♦ Output function

1. Pulse testing with active output port (to meet the requirements of Remote pulse output, pulse width 80ms ± 20ms).

2. A clock output. In the electricity supply, the clock output terminal on the output of one second signal, the signal optical isolation for the

detection of (optional)

3. With RS485 output, RS485 Meter Reading can be realized.

♦ Event logging function

1. The meter can record the total MID of active power consumption and the time when it happens during the current and last two months

2. The meter can record the time of the last programming and the times of programming.

TECHNICAL PARAMETERS

Accuracy class:Class 1.0,

Rated voltage(V):3 x 57.7/100, 3 x 220/380, 3 x 230/400, 3x240/415.etc.

Rated current(A):1.5(6), 3(6), 5(20), 10(40), 15(60), 20(80), 30(100),etc.

Rated frequency:50Hz or 60Hz

Starting current Input through CT: 0.2%Ib; Directly input: 0.4%Ib(Active Class1.0 )

RTC accuracy: ≤0.5s/d(25ºC±2ºC); ≤1.0s/d (when the backup lithium battery working)

Battery capacity:≥1000mAh:

Backup battery voltage:3.0 or 3.6VDC

Data preservation time:≥10years

Power consumption Voltage circuit consumption: ≤1.0W 6VA. Current circuit consumption: ≤1VA

RS485 communication Baud rate:1200bps~2400bps

Infrared communication Communication distance: ≥4m; Communication angle: ≥±15o

Remote pulse output Pulse width: 80ms ± 20ms

Max.operation temperature:-40°C ~ +80°C

Max.storage temperature:-45°C ~ +85°C

Relative Humidity:≤85%

Dimension:14 267.5 x 168 x 73 mm

Weight:Approx 1.6kgs