DSAD331/DTAD341-ME2
THREE PHASE ELECTRONIC
MULTI-FUNCATION ENERGY METER
USER MANUAL
WASION GROUP LIMITED
TABLE OF CONTENTS
Chapter 1 Introduction (3)
1.1 Fundamental Principle (3)
1.2 Basic Parameter (3)
1.3 Outside Dimensions and Identifications (4)
Chapter 2 Glossary (5)
2.1 Demand interval (5)
2.2 Maximum demand (5)
2.3 Sliding window time (5)
2.4 Peak on, Peak, Peak off, Valley, Low Valley, Lowest Valley time zone (5)
Chapter 3 Presentation (5)
3.1 Energy Register (5)
3.2 Time of Use Register (5)
3.3 Maximum Demand Recording (5)
3.4 Instantaneous Data Measurement (5)
3.5 Load Profile Recording (6)
3.6 Display (6)
3.7 Automatic Billing (13)
3.8 Automatic Recording (13)
3.9 Automatic Diagnostics (13)
3.10 Voltage Quality (13)
3.11 Events Recording (13)
3.12 Alarm Function (15)
3.13 Pulse Inputs or Outputs (15)
3.14 Communications (15)
3.15 Programming (15)
3.16 Security (15)
3.17 Optional Functions (15)
Chapter 4 Meter Use (15)
4.1 Electrical Connections (16)
4.2 Pushbutton Use (16)
4.3 Battery Replacement (16)
4.4 Metrological verification of the meter..................... .16 4.5 Points for Attention (17)
Chapter 5 Appendixes (17)
5.1 Display Information (17)
5.2 Meter Mode Word (18)
Chapter 1 Introduction
1.1
Fundamental Principle
The product is made of digital protocol processing module, DSP measuring module, real-time clock, data interface and man-machine interface equipment. DSP measuring module use digital protocol processing module for the transmission of sampled value, and process the digital integral operation, so as to obtain accurate active energy and reactive energy, according to the corresponding rates and demand requirements, the data is processed by the microprocessor. The result is stored in the data memory, and the microprocessor keep providing
information and data exchange service for the external interface, the principle block diagram is shown in figure 1.
Figure 1：Operation functionality 1.2 Basic Parameter
1.2.1 Main parameter
ITEM SPECIFICATIONS
Rated Voltage 3×57.7 V /100V , 3×100V Range of V oltage 0.7Un—1.3Un
Rated Current 1%Ib －Imax/1%In －Imax
Operation Temperature -35℃～+65℃
Humidity
0 to 95% without condensation Rated Frequency 47.5-52.5 Hz Starting current 1‰Ib(class 0.2) Power Consumption ＜2W ，10V A MTBF
(Mean Time Between Failures)
≥6×104 h
1.2.2 Real time clock Timing Error
≤0.5 s/d （0℃~+40℃：±2ppm; -40℃~+85℃：±3.5ppm ）
Clock Frequency 1Hz
Battery Life 10years
Continuous Work Time
≥5years 1.2.3 Power Pulse Output
Pulse output constants
For 1.5(6)A 3×57.7/100V , 3×100V meter ： active ：20000imp/kWh, reactive ：20000mp/kvarh. For 0.3(1.2)A:
3×57.7/100V , 3×100V meter ： active ：100000imp/kWh, reactive ：100000imp/kvarh. Width of pulse output
(80±5)ms Max over-load
10mA （DC ） Max common-mode voltage 24V （DC ） Model Optic-couple 1.2.4
Dimensions L×W×H = 255mm×175mm×87mm Net weight About 2kg 1.2.5 Applicable Standards Standards Description IEC61850-8-1 Specific Communication Service Mapping
(SCSM) –Mappings to MMS (ISO 9506-1 and ISO 9506-2) and to ISO/IEC 8802-3
IEC61850-9-2 Specific Communication Service Mapping
(SCSM) –Sampled values over ISO/IEC 8802-3
DL/T645 China communication protocol
