Product Specifications
Prod Model: |
DDSY |
Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Function: |
Keypad |
Nominal Voltage: |
240V |
Current Rating: |
5(60)a,10(80)a |
Frequency: |
50Hz±5% |
Type: |
Power Meter |
Display: |
Digital |
Electric Equipment: |
Single-phase |
Theory: |
Electronic Meter |
Installation: |
Direct Connected |
Usage: |
Reactive Energy Meter |
Measured Signal: |
Continuous Wave |
Power Meter Connection: |
Terminal |
Product Description
1.Summary
Single phase electricity meter DDSDXXX is a new type of prepayment meter. Customer purchases energy from the vending network to get a serial number (named as "TOKEN"), and then use the keypad of meter to enter the TOKEN. The credit data will be entered into the meter after the TOKEN being accepted. The TOKEN contains 20 digits and is encrypted. For the purchasing method reason, the meter also named as "Keypad meter".
The data transmission protocol of the meter complies with IEC62055-41. All the specifications comply with IEC62055-31.
2. Features
Measure active energy;
LCD display with backlight;
20-digit transmission as a token,customer purchases energy before consumption
Low energy alarm and low energy trip to remind the customer to purchase energy.???
With RS485 and optical communication functions for reading meter and setting parameters.
Open terminal cover detection alarm.
3. Specification
Rated current | 5(20)A,5(60)A, 5(80)A. |
Accuracy class | 1.0,2.0 |
Life span | ≥10 years. |
Power consumption | < 4VA,1.5W. |
Meter constant | 5(20)A: 3200imp/kWh 5(60)A: 1600imp/kWh 5(80)A: 800imp/kWh |
Dimension | 205*131*72mm |
Notice: Energy meter really corresponding current specifications, meter constant and accuracy class refer to nameplate on the energy meter cover.
Technical Data
Meter Type | Integrated Single Phase STS Energy Meter |
Accuracy | Class 1 |
Nominal Voltage | 240V |
Current Rating | 5(60)A,10(80)A |
Starting Current | 0.4% Ib |
LCD Digit | 6 + 2 |
Constant/Pulse | 1000 imp/kWh,1600imp/kWh |
Standards Compliant | IEC62052-11, IEC62053-21, IEC62053-61, IEC 62055-41, IEC62056-21, IEC62059-11, IEC62059-21 IEC1036 Etc. |
Frequency | 50Hz±5% |
Communication | RS485, Optical (Comply with IEC62056-21) |
Connection | BS standard |
Power Consumption | <10VA |
Operation Temperature Range | -15°C + 70°C |
Humidity | Less than or equal to 95% of normal relative humidity |
surge | 1,2/50μs(IEC 60060)-6kV |
Protection Degree | IP 54 |
Dimensions | 155x120x52 mm |
Weight | 0.65Kg |
4.1,LCD display screen with back light.
4.2,LED Alarm indicators:
(1). The green LED indicates the remained energy is in low level (remained energy threshold 1).
(2). The red LED indicates the remaining energy is below remained energy threshold 2.
(3). When the red LED turns into yellow means the energy is over, the customer must recharge immediately.
4. 3. Active pulse: KWh indicator.
4.4,Keypad contains 12 buttons to enter TOKEN and query information
4.5,Optical port comply with IEC 1107
4.6,open terminal cover switch inside the terminal.
5. Operation principle
As shown in figure 3, the current and voltage of power covered into small signal separately and input into a special measurement IC, after a series of process such as multiplication calculation etc. and then output energy pulse, whose frequency is in direct proportion to the supply power, to the microprocessor unit (MCU). The MCU calculate and process this energy impulse to perform the power metering and load control functions etc. The LCD displays the total energy and remained energy etc. and the pulse, remained energy and relay tripping off indictor shows the meter operation state.
Figure 3
6.Application of TOKEN
Customer input the TOKEN via keypad in meter. The meter will make a sound "Ding" every time you input one number and prompt the digit number on the lower left-hand corner. When customer input over nine digits, the first input digit will move out of the LCD and the indicator "" appeared on the lower left-hand corner. If input an incorrect digit, please press"" key to delete.
Figure | Description |
| Before pressing"" button |
| After pressing "" button, the last digital "8" is deleted |
Meter recharge. After input all of the 20 digits TOKEN, please press "ß|" key to confirm. If the TOKEN is correct and accepted by meter, it will display "IC - good" on the LCD and sound "Ding" twice. The purchased energy will be accumulated to the remained energy.
Recharge wrongly. Meter will sound "Ding" three times and give the failure mark on LCD. Remained energy will not be changed.
TOKEN rejected message as following description:
(1) IC - 001 TOKEN length error;
Solution: Re-enter the TOKEN
(2) IC - 002 TOKEN don't match this meter;
Solution: Check the TOKEN with energy vending station
(3) IC - 003 TOKEN without time information;
Solution: Check the TOKEN with energy vending station
(4) IC - 004 Repeated TOKEN;
Solution: Get another TOKEN ;
(5)IC - 005 TOKEN time information error; TOKEN not as a result of the timely importation, no longer valid.
Solution: Get another TOKEN
(6)IC - 006 Key in meter for this TOKEN is outdate(TID higher 8 digitals is bigger than KEN);TOKEN can not be decrypted.
(7)IC - 007 remained energy plus purchased energy is more than purchased accumulation threshold ;when remained purchase energy plus purchased energy is less than purchased accumulation threshold ,please input this purchased TOKEN;
(8)IC - 008 Reserved for future definition by the STS Association;
(9)IC - 009 manufacturer code error ;
(10)IC - 010 power threshold setting more than limited;
(11)IC - 011 Reserved for future definition;
(12)IC - 012 purchased energy more than limited;
(13)IC - 013 meter operate DDTK mode,no permit purchase operation;
(14)IC - 014 no comply with rule of modify key,key change TOKEN be refused;
(15)IC - 015 this TOKEN is not for the power meter ;in future for gas meter or water meter
(16)IC - 016 this TOKEN be hold or overflow.
TOKEN types:
TransferCredit Token
Remained purchase energy in meter plus the energy that purchased TOKEN is less than alarm energy. Customer shall be purchase energy at vending station in order to avoid tripping off. when remained purchase energy plus purchased energy is more than purchased accumulation threshold, this energy which purchased TOKEN don't add to the meter, but this TOKEN is valid. when remained purchase energy plus purchased energy is less than purchased accumulation threshold, TOKEN can be input to the meter.(about configuration of purchased accumulation threshold, see in clause 11 ).
Set1stSectionDecoderKey TOKEN and Set2ndSectionDecoderKey TOKEN
By Set1stSectionDecoderKey TOKEN and Set2ndSectionDecoderKey TOKEN to achieve key modification .Initialization key is DITK,bar code scanning make DDTK which used as modify meter key before ,customer use DUTK or DCTK;
TOKEN input via keypad, two group of TOKEN enter meter,the first TOKEN input correctly,LCD display "IC-GOOD" and ""indictor;the second TOKEN input correctly ,"IC-GOOD" and ""indictor,the key be modified successfully.
Testing TOKEN
Testing TOKEN be used test some basic functions ,test item include Relay,LCD,total KWh,Key type,tariff no,keypad check,power threshold,tampering status,power,firmware versionetc;
Testing TOKEN don't need be encrypted;after TOKEN input correctly. display item see in clause 7.3.11.
Set Maximum Power Limit Token
This TOKEN be used configuration maximum power threshold,when load over the threshold, relay will trip off ,""indictor display in screen,customer press any button make the relay trip on and power supply resume.but press button times is limited by pre-configuration. if customer want to increase tolerance of load. Please apply for power supply company;
Register resetting TOKEN
When Register = 0xFFFF,these registers relative energy such as remained energy,total KWh,reverse total KWh register need be reset.
7 Display function
There are three kinds of display status: Scrolling display, Querying display and Power down display.
7. 1 Scrolling display
The meter auto-enter into scrolling display mode after power on. The LCD displays remained energy and total energy with 4 seconds interval. When press any key, the backlight will be turned on and last 10 seconds
HAIXIN ELECTRONIC TECHNOLOGY Co., Ltd. is a technology-based enterprise committed to the R&D and production of new type power and electronic products. The company is mainly engaged in multifunctional electric power meters, single-phase current and voltage meters, active power meters, reactive power meters, frequency and power factor meters, CPS control and protective switches, electrical fire monitors and other series products. The company has always been people-oriented and adhered to the business philosophy of "harmony, aggressiveness, high efficiency and development". It has not only a pioneering R & D team composed of professional engineers and experts from research institutions, but also a highly qualified and aggressive sales and marketing team! In addition to the national electricity system intelligent distribution projects, our products are also widely used in petrochemical equipments, municipal environmental protection equipments, light industry and light textile equipments, food and medical equipments, rail transportation equipments, iron and steel metallurgy equipments, aerospace equipments and other industries. Our products apply advanced production equipments and strict management system in the manufacturing process. In accordance with national norms, the company has established debugging room, laboratory and aging room and is equipped with advanced detection equipments. The Company adheres to the market commitment of "stable and reliable products, high quality and high efficient services which is also taken as the company's core competitiveness. The Company continues to understand customer demand, strives to meet customer demand and provides customers with perfect products and high quality services.