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Wuhan Radarking Electronics Corp.

Meter, Energy Meter, Electric Meter manufacturer / supplier in China, offering Single Phase STS Keypad Prepaid Energy Meter, Class B High Accuracy Brass Water Flow Meter, IC Card Prepaid Water Meter with Brass Body (Ball Valve) and so on.

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Single Phase STS Keypad Prepaid Energy Meter

Purchase Qty.:
(Pieces)
20-49 50-99 100+
FOB Unit Price: US $3 US $2 US $1
Purchase Qty. (Pieces) FOB Unit Price
20-49 US $3
50-99 US $2
100+ US $1
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Port: Wuhan, China
Production Capacity: 170, 000.00PCS/Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: DDSY150-SSK
  • Installation: Direct Connected
  • Electric Equipment: Single-phase
  • Power Meter Connection: Terminal
  • Type: Energy Meter
  • Customized: Customized
  • Accuracy Grade: Class 2.0; 1.0
  • Frequency: 50Hz/60Hz
  • Clock Accuracy: Less Than 0.5s/Day
  • Lifetime: More Than 10 Years
  • Measuring Energy Range: 0-9999.99
  • Transport Package: Color Box with Foam Inside
  • Origin: Wuhan, China
  • Display: Digital
  • Usage: Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Prepayment Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter
  • Theory: Electronic Meter
  • Measured Signal: Continuous Wave
  • Certification: RoHS, ISO, CE
  • Current: 5(20)a, 5(30)a, 5(40)a, 10(40)a, 10(60)a
  • Voltage: 220V/230V/240V Customized Data
  • Pulsating Constant(Imp/Kwh): 6400, 3200, 2400, 1600, 1200, 800,400,200
  • Display Method: LCD/LED
  • Operating Temperature: -25 to +60 Centigrades
  • Trademark: OEM/RADARKING
  • Specification: IEC62052-11, IEC62053-21, ISO9001, ISO14001
  • HS Code: 9028209000
Product Description

1. Introduction
Single phase electric meter  DDSY150-SSK  is a new type of electric meter having the prepayment function. The user can purchases energy from the vending network by getting the serial number ( named as " TOKEN"), which could be entered via keypad to load the pre-purchased energy. The TOKEN contains 20 digits which are encrypted. Because the activity of recharging is realized by keypad, this meter is named as " Keypad Meter".  This meter is equipped with infrared communication port, double metering sensors, double control switches, real time clock unit, and other auxiliaries.
 
The data transmissions protocol of DDSYXXXX complies with IEC62055-41 and IEC62056-21. All the specifications and performance index comply with IEC62053-21 regulations to Class 1.0 Static Meters for Active Energy.
 
 
2. Functions and features:
A. 
Active energy measurement;
B. Adopt 20-digit token as data transmission media, you can purchase energy before consumption;
C. Double loop measurement both on neutral and phase lines,
D. Accumulate the total energy with unit of 0.01 kWh;
E. Display the real-time current and voltage;

F.  LCD display with backlight
G. Low energy alarm to remind you to purchase energy;

H. Double relays to control the neutral and phase circuits;
I. Infrared communication for data transmission and parameter settings
J. Event record function (including cover opening event, tamper event and power failure event, etc.)

K. Ground line connection design;
L. Anti-tampering features( including opening terminal cover, short circuited, current injection, reverse wiring, magnetic disturbance, etc.)
 
3. Meter specifications
 

Rated voltage230V
Rated current5(60)A
Frequency50Hz
Accuracy class1.0
Meter constant1600imp/kWh
Power consumption< 5.0VA,2W
Life time≥10Years
Working temperature range-25ºC~+55ºC
 
 

 
4.3 LED indicator
LED from left  to right in sequence are indicating
-Pulse (RED color);
-Power supply and credit status(bi-color, normal status in GREEN, low credit status in RED and blinks);
--Alarm / Tampering (YELLOW color);  
4.4 Keypad
Contains the keys of  number from 0-9 and symbol "←" and "",used for input, cancel, confirm, and check the TOKEN.
4.5 Communication port
Optical communication port complies with IEC 62056-21 /IEC 61107 protocol.
4.6  Terminal cover detector used for detecting the terminal cover open status.
 
5. Operation principle
As shown in Figure 5, the incoming current and voltage are input into the special energy measurement IC via separate sampling circuit, measuring chip exports the impulse signal by a ratio of measured power to microprocessor ( MCU ),  MCU calculates and processes the impulse and perform the energy metering and load control functions etc. Because of bi-loop measurement,  the energy is sampling from both phase line and neutral line, the MCU could read the real-time current, voltage, detect the real-time energy consumption status, and process the tampering condition.  LED indicate the impulse, power/ credit status, alarm,  to show the meter working status.  Meter has high-precision clock and super capacitor ensure the meter could work at least for 48 hours when power off.

6. Meter application
 
6.1  Purchase  energy
Prepayment power vending management system will produce a 20 digits code (generated based on user's information and purchasing amount). You need to input this code to the meter with keypad. The meter will decrypt the code and write the purchased energy into the meter and will also add the energy into the balance energy and then save it. When the overdraft and abnormal power consumption occurred, the meter will deduct this consumption first and then the meter will save the balance energy into the meter. When you use the energy, the meter will deduct the balance energy according to relevant condition. The meter can power off the energy automatically when meter meets the condition of disconnection. The meter can recover to supply energy automatically when the meter meets the condition of recovery energy.
 
When the balance energy is low, you can go to the vending station of the utility to purchase electricity. The operator will give the user a 20 digits token according to user's information and quantity the user purchased.
 
Power purchase steps:
  • go to local power supply bureau
  • provide your meter ID to the operator
  • inform operator the quantities you want to buy
  • obtain a 20 digits token printed on your receipt.
 
6.2   Input  energy
You will input the code through meter's keypad to load the energy purchased. After encryption key verification, meter will accept energy and adjust the residual amount and accumulative power-purchasing amount and then save the final residual amount into EEPROM. At the same time power amount loaded this time will also be displayed on LCD.
Input the token into meter steps:
  • Input 20 digits token via keypad of the meter
  • confirm the code from LCD
  • If token is wrongly inputted, please use backspace to modify.
  • If the token is correctly inputted, press " " to confirm the token.
  • if token is correct, LCD will display "BENAR" and the energy you purchased.
  • If token is incorrect, the LCD will display "GAGAL".
 
6.3  Token  information
TOKEN code is composed by 20 digits, which should be entered via keypad. The meter sounds "Ding" when pressing the buttons of keypad. The sequence of number entering will starting from right hand side, and the last number entered will be shown on most right hand side of text display area. The LCD will show the digits entered, and also the number of digit. When you enters the 8th  digit, the 1st digit will be moved to the display area.  Please see more details as follows.  
 
 
 
 
DisplayDescription
  
Before pressing  "←" button.
  
When pressing "←" button, the last digit of "8" is deleted.
After entering all 20 digits of TOKEN, press "" button to confirm and submit. If the TOKEN is correct and accepted, meter would display text of " BENAR" and buzz " Ding" for twice. If the TOKEN is incorrect and rejected, meter would display text of " GAGAL" or SErr information and buzz for 3 times.
DisplayDescription
 Already entered 9 digits, and the last digit is"9".
 Entered 20 digits TOEKN and press "" to check the TOKEN is correct or not.
 TOKEN is correct and accepted by meter, the credit is accumulated remain,   means TOKEN is accepted.
 TOKEN is incorrect and rejected by meter,  means TOKEN is rejected, GAGAL means TOKEN is incorrect.
 
When TOKEN is incorrect and rejected, meter will display as follows.
 
DisplayDescription
BENARTOKEN is accepted
GAGAL(CRC Error) The CRC value in the token is different to the CRC value as calculated from the data in the token
TERPAKAI(Used Error) The TID value as recorded in the token is already recorded in the memory store of the payment meter
USANG(Key Expired Error) The TID value as recorded in the token is
larger than the KEN stored in the payment meter memory
 
 
 
 
7.  Display function


The  meter has 3 display modes of automatic display, manual querying display and power down display. Meter starts automatic display of balance energy value and error information when power is on. When it is in automatic display mode, the screen starts with balance enegy and slipps for every 5 seconds. The backlight will be ON and lasts for 15 seconds for pressing keypad, 10  seconds for pressing program button.

 
7.1  Automatic display
Meter will display the balanced energy and error information as follows in automatic display mode.
 
  Display Description
  Balance energy value
Current balance energy value is 83.31 kWh.
Symbol of "" means low power in super capacitor,.
symbol of "" means tampering activity.
37 = item code
  Error information
When error happened in meter,  LCD will display the
error information until it is solved, please contact the
energy supplier and seller asap.
 
DYLEbIH: Over power
TERPUTUS: 5x Over power
PERIKSA: Tampering
Err- 02: Memory error
Err- 03: Relay error
Err- 04: Clock error
Err- 05: Battery error
Err- 06: Measurement mould error
 
 
7. 2 Power down display
Meter will display the following contents when power down.
 
  Balance energy value
Current balance energy value is 82.71 kWh.
The first bar of "" indicates low load.
37 = item code.
 
7. 3 Mannual querying Display
When you press the code numbers and key of "", the meter will display corresponding data contents as following examples.
If the data code is reserved or correct, then " 0.0 " will be displayed.
 
  Accumulated Consumption Energy
Real-time accumulated consumption energy is 22.11kWh.
The symbol of "" indicates low credit, and switch inside meter is open, stop energy vending. 
03 = item code
  Real-time Power
Real-time power is 2.611kW.
47 = item code
 
  Voltage
Real-time voltage is 220V.
The symbol of "" indicates low credit, and switch inside meter is open, stop energy vending. 
41 = item code
  Current   
Real-time current is 2.100A.
44 = item code
 
Data code details for manual querying:
 
Display codeData contentDisplay codeData content
00Test LCD display61Last 3rd credit kWh
01Test the load switch62Last 4th credit kWh
02Display Test - Tests the buzzer as well63Last 5th credit kWh
03Total kWh Register 64Total technical token accepted
04Display Key Revision Number & Type65Last technical token accepted
05Index Tariff (Display Tariff Index)66Last 2nd technical token accepted
06Test the token reader device67Last 3rd technical token accepted
07Power limit (Display Power Limit), kW68Number of trips due to overload
08Display Tamper Status69Number of sources of power outages
09Display Power Consumption70Total terminal cover open
10Display software version71Total meter cover open
11Display phase power unbalance limit72Total tampering
12-73Energy consumption negative credit
13-74Hardware version
14 - 36RESERVED BY STS75No. ID Meter
37Remaining credit (kWh) 76Meter Constant
38Cumulative Energy (kWh)77Supply Group Code (SGC)
39-78Duration alarm
40-79Low-limit credit alarm
41Voltage rms (V)80-
42-81Forecast time till the credit is over
43-82Last  tampering
44Current rms (A)83Energy consumption last month
45-84Energy consumption last 2nd month
46-85Energy consumption last 3rd month
47Instantaneous power (W)86Over load trip last time (day and time)
48-87Over load trip last 2nd time
49-88Last meter off  (day and time)
50-89Last 2nd meter off
51-90Last terminal meter open
52-91Last 2nd terminal meter open
53Total number of token accepted92Last  cover meter open
54Last credit token accepted93Maximum power this month
55Last 2nd credit token accepted94Time at maximum power this month
56Last 3rd credit token accepted95Current time
57Lest 4th credit token accepted96Current date
58Last 5th credit token accepted97-
59Last credit kWh98-
60Last 2nd credit kWh99Checksum software + fitur

 
 
 
8.  Alarm function
8.1 Low balance alarm
To remind the customer to purchase balance in time, meter has two level low balance alarm and it can be set.
Level 1: Green LED will flash and buzzing. This alarm can be canceled after pressing any button , but the alarm will come again without entering TOKEN.
Level 2:  Buzzing duration is shorter than level 1.
Remark: All the "alarm duration" and "low balance threshold" can be set through entering the technical code of  "123***" (*** is minutes) .
 
8.2 Relay trip alarm
When you install the meter, the duration exceeds limitation of 45 seconds, the relay will switch off, yellow LED will be on and buzzing. After 150 seconds, the meter will switch on again automatically.
If the meter in overload condition accumulative exceeds 45 seconds in 30 minutes, the relay will switch off , but will switch on again after 150 seconds.
The delay time can be adjust by computer.
If the meter cover is opened, the relay would trip off  with flashing "Alarm" LED, buzzing and indicator of tampering.
The status of switch off could be canceled through enter the TOKEN "INPUNTED"
If the power line is reversely connected, meter could measure as normal. But when balance energy is run out, meter will not accept any new TOKEN until it resume to "REPAIRED".
 
 
9.  Communication
Infrared communication port is comply with IEC61107.



Single Phase STS Keypad Prepaid Energy Meter
Single Phase STS Keypad Prepaid Energy Meter

Single Phase STS Keypad Prepaid Energy Meter
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