DTSD546/DSSD536 series of three-phase static multi-function energy meters are designed to satisfy industrial demand, adopting large-scale integration (LSI), digital sampling technology and surface mounting technology (SMT). It features stable functions, high precision and easy operation.
Conforms to all technical requirements specified in IEC687, IEC1268 and IEC1107. The meter is capable of measuring active/reactive energy and demand in all directions, RS485 port communication, manual and infrared waking during power outage, load record and much more.

Functions:
1) Active and reactive energy measurement
2) Max. demand record
3) Voltage loss record
4) Over voltage record
5) IEC 1107 infrared communication
6) Reading during power break
7) Infrared waking up
8) 1Hz second signal output
9) Energy consumption last 12 months
10) Multi-tariff energy measurement
11) Bypass current record
12) Demand load curve record
13) Single RS485 port communication
14) Waking during power break
15) Remote output
16) Data scroll display or key display

Basic parameters
1) Applicable standard: IEC687, IEC 1268, IEC1107
2) Accuracy class:
a) Active: Class 0.5S
b) Reactive: Class 2
3) Reference frequency: 50Hz
4) Potential: with anti-potential logic design
5) Starting current:
a) Active: 0.001In (transformer connected)
b) Reactive: 0.003 In
6) Service life: 10 years
7) Exterior dimensions: 278 x 174 x 77mm
8) Installation dimensions: 241 x 150mm
9) N. W.: 0.8kg

Climatic conditions:
1) Normal working temperature: -20~+45 ° C
2) Limit working temperature: -30~+60 ° C
3) Storage and transport temperature: -40~+70 ° C
4) Storage and transport humidity: ≤ 85%

Electric parameters:
1) Normal working voltage: 0.9Un~1.1Un
2) Limit working voltage: 0.75Un~1.15Un
3) Voltage circuit power consumption: ≤ 2W or 0.5VA
4) Current circuit power consumption: ≤ 1VA
5) Voltage of battery for data storing: 3.6V DC
6) Voltage of battery data reading: 6.0 V DC

Tariff working parameters:
1) Clock accuracy: daily error less than 0.5s (23 ° C)
2) Battery capacity: ≥ 1, 000mAh
3) Data storing time after power break: ≥ 10 years (using new battery)

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

Specifications
1) Three-phase four-wire: DTSD546
2) Three-phase three-wire: DSSD 536
3) Reference voltage:
a) 3 x 220/380V
b) 3 x 57.7/100V (four-wire)
c) 3 x 100V (three-wire)
4) Basic (max. ) current:
a) 3 x 1A
b) 3 x 5A
c) 3 x 1, 5(6)A
d) 3 x 3(6)A
e) 3 x 5(20)A
f) 3 x 10(40)A
g) 3 x 15(60)A
h) 3 x 20(80)A
i) 3 x 30(100)A

Outer packing:
4pcs/ctn
G. W.: 2.5kg