This is a single phase 2 wire split prepayment keypad meter approved by STS A.It can access to any STS standard system.

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2 1. Introduction This is a single phase 2 wire split prepayment keypad meter approved by STS A.It can access to any STS standard system. Built-in 100A relay which can trip when over load or balance run out.the meter consist of Measurement and Control Unit (MCU) and Customer Interface Unit (CIU). MCU achieve data exchange with CIU through non polarity twisted pair cable and meanwhile supply power to CIU, CIU need not external power. Furthermore, customer can check the information in home and realize remote or SMS recharge. 2. Features and Technical Parameters 2.1 Features 1. This single phase split prepayment meter is based on virtual medium. The data encryption process complies with international standard IEC62055 and certified by STS association. 2. MCU built-in 100A relay 3. IR communication interface in MCU can set and read local parameter. 4.Keypad on CIU can enter recharge token and check meter parameter. 5.Over load trip, threshold power programmable. 6.Meter keeps last 50 recharge records and relevant token to inquire. 2.2 Technical Parameters Voltage: Current: Accuracy class: 1.0 Standard: Frequency: Impulse constant: Display: Power consumption: Starting current: Temperature range: 230V AC±20% 5(80) A IEC ,IEC ,IEC ,IEC Hz 1000imp/kWh LCD 6+2 = kW 8VA 1Wh 0.004Ib Average humidity value of year: 75% Maximal humidity value: 95% -20~70 2

3 3. Description 3.1 MCU A Relay indication B Reverse indication C Impulse indication D IR communication interface E Twisted pair cable interface F Impulse output interface G L-out H L-in I N-in 3

4 3.2 CIU part A B C D A B C D LCD IR communication interface Alarm indication 3*4 keypad 4. Display 4.1 CIU LCD Screen symbol describe Communication indication Current direction Over load indication Tamper indication 4

5 Communication failed indication Balance indication 5. Connection Diagram 6. Meter Dimensions 6.1 CIU 5

6 6.2 MCU 7. Software 7.1 Short code set A: Alarm credit: enter 5678-XXX then press " Enter ", XXX is alarm credit, allowed range is 0-600kWh,no decimals. B: Alarm buzzer pause time: enter 1234-XXX, then press Enter, XXX is interval time, allowed range is minutes. C: Backlight time: enter 6789-XXX, then press " Enter ". XXX is backlight time, allowed range is 0-255,if set 0 or 255, it will always on. D:CIU ID: enter , then press Enter, this is used to set CIU ID quickly to match MCU. (Note:This command is used by workers only, no need to inform the end user.) E: recover command after opening terminal cover,: , then press " Enter " Confirm terminal cover is closed or this command is invalid before entering the command. (Note:This command is used by workers only,no need to inform the end user. After STS decoding key instead of formal key, the command is allowed to use once only.) 7.2 Short code demand details 6

7 Code Description Code Description 2 Full display and buzzer testing 67 Last 3rd technical TOKEN 4 Display KRN and KT 68 Over power trip times 5 Display tariff NO.TI 69 Power failure times 6 EEP fault code display 70 Cover open times 7 Power limit 72 Power reverse times 10 Software version NO. 73 Overdraft energy 38 Total recharge energy 74 Hardware version NO. 39 Apparent power 75 Meter ID NO. 40 PF 77 Supply group code(sgc) 78 Alarm time interval 53 Total purchasing times 79 Energy alarm threshold 54 Last purchasing TOKEN 80 CIU ID 55 Last 2nd purchasing TOKEN 56 Last 3rd purchasing TOKEN 57 Last 4th purchasing TOKEN 58 Last 5th purchasing TOKEN 59 Last credit purchasing 60 Last 2nd credit purchasing 61 Last 3rd credit purchasing 62 Last 4th credit purchasing 63 Last 5th credit purchasing 64 Total technical TOKEN times 65 Last technical TOKEN 66 Last 2nd technical TOKEN 7.3 Event log Last 50 times recharge token code Last 50 times recharge credit Total recharge times Over power trip times Cover open times Power failure times Technical TOKEN used times Power reverse times Note:Above events total times not exceed

8 7.4 Communication MCU support IR and non polar twisted pair cable communication, IR complies to IEC (A) mode, protocol of non polar twisted pair cable is DLT IR :Baud rate:2400, 7 data bits,1 even,1 stop bit. RS485 : Baud rate :9600,8 data bits,no even,1 stop bit. 7.5 Prepaid function Recharge After purchasing the credit, user will get a recharge token, enter 20 digits token through keypad, the token will scroll display from right to left. The interval typing time should within 20S. Type " clear button " to modify entering error. After confirmed, press Enter. If don t type completely, the type operation is invalid. Enter through two modes: Keypad or communication. If token is accepted, CIU will display success or error code. Error code: Err 11:Returned data from MCU is invalid Err 29 : The command can t clear cover open event. Err 31 : Keypad testing(unused) Err 32 : Display tampering state.(unused) Err 33 : Display current power(unused) Err 34 : Display phase unbalance(unused) Err 35 : Reserved Err 36 : Reserved Err 40 : Reserved Err 41: Alien data Err 42 : Banned data. Err 43 : Used data Err 44 : Expired data Err 45 : expired Key Err 46 : Power set exceed range Err 47 : The mode is not allowed to purchase credit Err 48 : Inconformity to key modify process Err 49 : The data is not used by meter Err 50 : The data is before produce. Err 51 : Numerical value error. Err 52 : Special use data Err 53 : Key set over time. Err 54 : Manufacturer No. error. Err 55 : Reserved 2 Err 56 : Reserved 3 Err 57 : Inconformity to key modify process,meter key type uninitialized. Err 58 : Inconformity to key modify process,meter key initialize set error. 8

9 Err 59 : Balance exceed allowed regrate energy,this recharge invalid. Success code: Good 01 :Key modify Token 1 decoding success(enter Token 1 first) Good 02 :Key modify Token2 decoding success(enter Token 2 first) Good 28 :Clear cover open state success. Good 88 :Recharging success Good 81 :Set power threshold success. Good 82 :Clear remain energy success. Good 83 :Clear event record success. Good 84 :Key modify success. Good 85 :Key modify and clear TID success Good 70 :Alarm dwell time set success Good 71 :Energy alarm threshold set success Good 73 :CIU backlight time set success Good 75 :CIU ID set success Good 90 :Perform all testing Good 91 :Relay testing Good 92 :LCD testing Good 93 :Display total energy Good 94 :Display Krn Good 95 :Display Ti Good 96 :Display power threshold Good 97 :Display software version 7.6 Management code General management TOKEN This function supplied by STS vending system which used to test meter performance and check parameter information. This management code without STS encryption. It can operate for every prepayment meter which complies with STS protocol. Main function includes relay testing, LCD testing, and display total energy, key version number, tariff type, power threshold, software version number Special management TOKEN This key is encrypted by STS protocol, includes time and relevant manage information. It is only used for the meters that have the same key. Main functions: set maximum power, clear balance credit, modify key, clear events Set power limit: enter token for setting power limit to meter, the meter will display the value if set successful. The unit of Token is W, display format is XX.XXX kw,the default value is kw. The Maximum value is 65535W. LCD will show Good 81 after set successfully. 9

10 7.6.4 Clear the remain credit: enter token for clearing remain credit to meter, then press enter button, LCD will show" Good 82 " Modify the key: enter two TOKEN without sequential difference. After entering the first TOKEN, the second must be entered within 180s. LCD will show Good 01 if the first TOKEN is successful, show "Good 84" if the second TOKEN is successful. If enter second TOKEN first, LCD will show "Good 02", then enter the first TOKEN, LCD will display "Good84". And if clear TID at the same time, LCD will show "Good85" after modify successfully Clear event records: enter token for clear event to meter then clear all events records and signs. LCD display Good Prevent credit hoard Meter has a preset hoard preventing value. The total energy in the meter cannot exceed this value, or the TOKEN cannot be recharged. This TOKEN can be used once the hoard condition is not satisfied. The default value is kWh. 7.8 Over load process If the over load exceeds for more than 45s, the relay opens and the relay indicator on display lights. The relay closes again after 150s, and the indicator goes out. If the above situation happens for more than 5 times in 30 minutes, the relay will close again after 45 minutes. If the times does not reach 5 (eg. 4 times) in 30 minutes, the recover time of the relay is still 150s, and this 4 times record will be cleared if this situation not happen in next 30 minutes. The over load value could be set through keypad or PC software. 7.9 Balance credit alarm This meter has the function of 1 degree credit balance alarm. The limit can be setted through code or communication. The red LED flashes and the buzzer alarms if the credit balance is less than the limitation. Press any button can clear the alarm, but it will alarm again after a period of delay, this delay period can also be setted through code or communication. After all the credit used up,the relay opens and LED goes out MCU LED indication instruction The single red LED is impulse indicator. The other two LED have two status when they are red: 1.Quick flash: receiving data through PLC communication 2.Normally on: power reverse 10

11 Three status when they are green: 1.Quick flash: sending data through PLC communication 2.Normally on: power indication, means power on 3.0.5second slow flash: relay open, power off 7.11 IHD LED indication instruction There are two red LEDs on the IHD, Relay for relay indication, only when the relay opens will this indicator light and flash till the relay closes; CREDIT for low balance indication, it is used to indicate low surplus credit. Normally it is off. It flashes when surplus credit is less than threshold; it goes out and the relay opens when the credit used up,. 8. Installation Instruction * Choose 35mm standard Din-Rail ( the length is confirmed by yourself ), fixed them in the location which are waiting for installation; * Push down the clip under the bottom of the meter, see fig.1. With a hang hole under the bottom of the meter,see fig.2. Fig.1 Fig.2 * Put the meter into the Din-rail as per Fig. 3, then push up the clip for a gear, install meter to the Din-rail, see Fig. 4; 11

12 Fig. 3 Fig. 4 * Fig. 5 and Fig.6 is after installation; Fig.5 Fig.6 * Making the connection according to the wiring diagram; * After connection, use lead sealing to seal terminal cover. Recommended wire(for your reference): Safe carrying capacity of rubber or plastic insulated wire(1) 12

13 specification(mm) nominal cross section (mm2) Safe carrying capacity(a) BX BLX BV BLV 1* * * * * * * * * * * * Note:BX(BLX)copper(aluminum)core rubber insulated wire or BV(BLV)copper(aluminum ) core PVC plastic insulated wire,widely used in 500V or less than 500V AC and DC power distribution system. The temperature for the data listed in the above table is 35 the safe carrying capacity value for the wire on single covered. 9. Safety Instructions Information for Your Own Safety This manual does not contain all of the safety measures for operation of this equipment (module, device) because special operating conditions, local code requirements or local regulations may necessitate further measures. However, it does contain information which must be adhered to for your own personal safety and to avoid damage to the equipment. This information is highlighted 13

14 by a warning triangle with an exclamation mark or a lightning bolt depending on the severity of the warning. Warning Means that failure to observe the instruction can result in death, serious injury or considerable material damage. Caution Means hazard of electric shock and failure to take the necessary safety precautions will result in death, serious injury or considerable material damage. Qualified personnel Installation and operation of this equipment described in this manual may only be performed by qualified personal. Only people that are authorized to install, connect and use this equipment and have the proper knowledge about labeling and grounding electrical equipment and circuits and can do so according to safety and regulatory standards are considered qualified personnel in the manual. Use for the intend purpose The equipment (device, module) may only be used for the application cases specified in the catalog and the user manual and only in connection with devices and components recommended and approved by YTL. Exclusion of liability We have checked the contents of this publication and every effort has been made to ensure that the descriptions are as accurate as possible. However, deviations from the description cannot be completely ruled out, so that no liability can be accepted for any errors or omissions in the information given. The data in this manual is checked regularly and the necessary corrections will be included in subsequent editions. If you have any suggestions, pls let us know. Subject to technical modifications without notice. Copyright Copyright Zhejiang Yongtailong Electronic Co., Ltd. April 2013 All rights Reserved. It is prohibited to pass on or copy this document or to use or disclose its contents without our 14

15 express permission. Any duplication is a violation of the law and subject to criminal and civil penalties. All rights reserved, particularly for pending or approved patents award or registered trademarks. General Warning After removing the packaging make sure the integrity of the unit. If in doubt don't use the equipment and contact technical staff. Mounting of electric appliances must be carried out only by skilled electricians. It is imperative to observe the generally applicable safety measures. In case of failure and /or malfunctioning of the device, turn off it. For any repair only contact technical staff. Failure to comply with the above may compromise the device safety. Warranty The manufactory will repair or exchange the products while the lead seal is still exited, within 18 months, when discovering the products not accordance with the technical specification. Technical support For any problems of our products please contact: Zhejiang Yongtailong Electronic Co.,Ltd Designed Territory Sole Agent : IVY METERING CO.,LTD Tel: Contact :Ms Angel marketing@ytl-e.com ; info@ivy-metering.com Sales Service Center : Zhejiang Yongtailong Electric Co.,Ltd Tel: Fax: