Detailed Product Description

The product conforms to all technical requirements specified in IEC687, IEC1268 and
IEC1107. 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 and load record.

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 communication
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

Basic parameters:
Applicable standard: IEC 687, IEC 1268, IEC 1107
Accuracy class active: class 0.2s/0,5S/1.0 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 dimensions: 279mm x 70mm x 5mm
Net weight: 1.8kg
Gross weight: 2.0kg
Carton weight (4 pieces): 8kg

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: 3.6V DC
Voltage of battery for data reading: 6.0V DC

Tariff working parameters
Clock accuracy daily error less than 0.5s (230°C )
Battery capacity >1,000mAh
Data storing time after power break >10 years (using new battery)

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

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

Specifications
Three-phase four-wire: DTSD341
Three-phase three-wire: DSSD331
Reference voltage: 3 x 220/380V; 3 x 57.7/100V (four-wire); 3 x 100V (three-wire)
Basic (maximum) current: 3 x 1.0A, 3 x 5.0A; 3 x 1.5 (6) A, 3 x 3 (6) A; 3 x 5 (20)
A, 3 x 10 (40) A, 3 x 15 (60) A, 3 x 20 (80) A, 3 x 30 (100) A