Detailed Product Description

1 General
DTSD546/DSSD536 series Three-phase Static Multi-function Energy Meter, designed to satisfy industrial demand, adopts LSI, digital sampling technology and SMT process. It features stable capability, high precision and easy operation.
The product conforms to all technical requirements specified in IEC687 <Alternating current static watt-hour meters for active energy (classes 0,2S and 0,5S)>, IEC1268 <Alternative current static Var-hour meters for reactive energy (class 2 and 3)> and IEC1107 <Data exchange for meter reading, tariff and load control- direct local data exchange>.
The meter has the functions of measuring active / reactive energy and demand in all directions, RS485 port communication, manual and infrared waking up during power break, load record and so on.

2 Functions
1) Active and reactive energy measurement 
2) Energy consumption record of every month
3) Max demand record 
4) Multi-tariff energy measurement
5) Voltage loss record
6) Bypass current record 
7) Over voltage record
8)Demand load curve record 
9) IEC1107 Infrared communicationd
10) Single RS485 port communication 
11) Reading during power break 
12) Waking up during power break 
13) Infrared waking up 
14) Remote output  
15) 1Hz second signal output 
16) Data scroll display or key display

3.1 Basic parameters
Applicable standard: IEC 687, IEC 1268, IEC 1107
Accuracy class  
Active: Class 0,5S Reactive: Class 2
Reference frequency: 50Hz
Potential With anti-potential logic design
Starting current Active: 0.001In (transformer connected) Reactive: 0.003In
Service life: 10 years
Outline dimension: 278mm&acute;174mm&acute;77mm
Installation size: 241X150mm
Net Weight: 2.5kg
Gross weight: 2.8kg
Carton weight (4 pieces): 12kg

3.2 Electric parameters
Normal working voltage: 0.9Un~1.1Un
Limit working voltage: 0.75Un~1.15Un
Voltage circuit power consumption: <2W or. 5VA
Current circuit power consumption: <1VA
Voltage of battery for data storing: 3.6VDC
Voltage of battery for data reading: 6.0VDC
3.3 Tariff working parameters
Clock accuracy: Daily error less than 0.5s (230C)
Battery capacity: >1000mAh
Data storing time after power break: >10 years (using new battery)

3.4 Climatic conditions
Normal working temperature: -200C ~+450C
Limit working temperature: -300C ~+600C
Storage and transport temperature: -400C ~+700C
Storage and transport humidity: <85%

3.5 Technical parameters
Tariffs: 4
Time periods: 10
Display:  LCD
Communication baud rate: 300bps~9600bps
Communication method: Direct local data exchange
Communication Protocol: IEC1107

4.Specifications
Three-phase four-wire: DTSD546
Three-phase three-wire: DSSD536
Reference voltage: 3X220/380V  3X57,7/100V (four-wire) 
3X100V(three-wire)
Basic (maximum) current: 3X1,0A, 3X5,0A; 
3X1,5 (6) A, 3X3(6) A;
3X5 (20) A, 3X10(40) A, 3X15 (60) A,
3X20 (80) A, 3X30 (100) A