User manual- HXE310-KP Overview The HXE310-KP three phase prepayment meter with keypad is developed based on the previous generation of Hexing prepayment meters to meet the requirements of market. The main functions include measurement, display, communication, prepaid, relay control, keypad input, and anti-tampering, etc.
: COSEM application layer Working principle The HXE310-KP three phase keypad prepayment meter consists of six major parts: 1) The Measuring Unit that includes the voltage sampling circuit, the current sampling circuit and the measurement IC.
User manual- HXE310-KP Working principle diagram Technical parameters Parameter Specification Reference voltage 3x230/400V Working voltage 70%Un~120%Un Reference current Maximum current 100A Accuracy class Class 1 (Active) Pulse constant Active:1000 imp/kWh Frequency (50±5)Hz Working temperature range:-25℃ ~+60℃ Temperature Store temperature:-40℃ ~+70℃...
User manual- HXE310-KP Communication port 2.2.1 Optical communication Symmetric 6.5±0.5mm Infra-red receiver Infra-red emitter Optical port drawing The Optical port is in accordance with the IEC62056-21 standard In addition it complies with the DLMS standard (Mode E) The initiate baud rate is 300bps, 7 data bits, and 1 parity bit; once successful handshake is completed the meter will then communicate at the baud rate of 9600bps, 8 data bits and one parity bit.
User manual- HXE310-KP Anti-UV function 2.3.2 LCD icon graph 2.3.3 LCD illustration LCD Illustration Description Data display area OBIS display area Unit display area Communication Phase indication (for three phase only) Import indication Export indication Battery low Relay Closed...
User manual- HXE310-KP Recharge succeeded Recharge failed Balance credit indication Tariff indication (S1~S8) Status indication 2.3.4 LCD display mode There are 5 modes of LCD display: Auto-scrolling display Meters’ default display mode is the Auto-scrolling display. This will cycle to the next screen automatically every certain second (configurable).
User manual- HXE310-KP 2.3.5 Status indication Should the meter cover be opened, S2 will be indicated. Should the terminal cover be opened, S3 will be indicated. Should the meter have been overloaded, S4 will be indicated. Should the meter cover and terminal cover open detection be deactivated, S5 will be indicated.
User manual- HXE310-KP Meter number c.1.0 NNNNNNNN SGC number c.51.3 NNNNNN Emergency credit c.51.1 XXXXXX.XX Low credit warning 1 c.51.6 XXXXXX.XX Low credit warning 2 c.51.7 XXXXXX.XX Low credit warning 3 c.51.8 XXXXXX.XX Total positive active energy in 98.1.1 XXXXXX.XX last month.
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User manual- HXE310-KP (Due to the credit is transferred in ‘scientific notation’ way according to STS standard, the error happens. When the credit is over 1638.4kWh, the error between 0~0.061% is acceptable. Credit range Maximum error 0~16383 16383~180214 0.061% 0.055% 180224~1818524...
User manual- HXE310-KP Key expired Recharge amount exceeds the maximum credit. Key type is wrong and recharge is not allowed 2.4.2 Management This type of token is encrypted by STA and can be used by relevant meter: ...
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User manual- HXE310-KP Clear event status Changing the meter key. In terms of the STS standard the meter requires 2 token codes to change the key. There is no sequence between two tokens but the user must enter the second token within 2 minutes after entering the first token otherwise the first token entered will be disregarded.
User manual- HXE310-KP After input the first key change token, then input the 2rd one with wrong token, If the existing key type is not initiation key, then cannot change to initiation key. Key type cannot be changed to 3 2.4.3...
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User manual- HXE310-KP would close the relay. Two minutes later, the meter will revert back to the previous relay state. Note: If the credit balance is no more than 0, then the relay cannot be closed. LCD test 0000-0000-0001-6777-4880 ...
User manual- HXE310-KP 2.4.4 Cancellation of registration Should the Utility or the end user have a requirement to remove the meter or change the meter, the registration of the meter could be canceled in the following manners: When a cancellation is processed on the Engineering token generation (or Vending) System a 20 digit cancellation token is generated.
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User manual- HXE310-KP Current date Current time Meter number SGC number Reason for Relay operation Meter status Total power Tariff index Over draft value Emergency credit Cancel audible alarm Positive active energy consumption in last day. Positive active energy Date of last recharge consumption of current month.
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User manual- HXE310-KP 800 - Total import active energy: 0.00 kWh 801 – Balance credit: 100.00kWh 802 – Current date: 18/Aug/2012 803 – Current time: 20:35:35 804 – Meter number: In terms of STS standard, there are 11 digits in meter number. It is displayed in two screens, for example, should the meter number is 14203528142.
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User manual- HXE310-KP 805 – SGC number: 999910 806 – The reason of relay operation: the codes definition please check the appendix 807 – Meter status, (the following means meter cover open and terminal cover open) BIT7 ……...
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User manual- HXE310-KP BIT12: Three phase unbalance BIT13: Overload BIT14: Strong magnetic filed 808 – Total instant power: 3.5280kW 809 – Tariff index: 01 810 – Overdraft limit: 10kWh 811 – Emergent overdraft: please refer to the detailed depict ...
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User manual- HXE310-KP 815 – The date of last recharging: 19/July/2012 816 – The time of last recharging: 21:35:15 817 – The credit of last recharging: 100.00kWh 818 – The return code of cancelation: please refer to the detailed depict ...
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User manual- HXE310-KP accuracy increase 1 position up to Wh and calculated from 0. Re-stroke 866 or re-power, the meter will exit the test mode 869 – Maximum power: 25.0000kWh 870 – Voltage: 220.8V 873 – Key version: 01 ...
User manual- HXE310-KP Low balance alarm To remind customers to recharge the meter in time, the meter provides a credit balance alarming that functions as both a visual alarm and audible alarm. 2.6.1 Credit status indicator Normal credit balance: LED in green ...
User manual- HXE310-KP Emergency overdraft (optional) After the credit balance is finished, the internal relay will be disconnected automatically. Should the customer require electricity in the case of an emergency, he can activate the emergency overdraft function by inputting 811 on the keypad.
User manual- HXE310-KP Deficit situation: Can’t withdraw after cancellation registration: Load control When the loaded active power exceeds value A (Maxim power) and the duration of this load exceeds the entered delay time B, the relay is disconnected.
User manual- HXE310-KP Relay control mechanism Event record In order to provide the important reference records for the utilities as well as monitor the specific events during the operation of meters, it records the occurrence time and related important information.
User manual- HXE310-KP Under voltage of phase A, B and C Reverse of phase A, B and C Unbalance of three phases Strong magnetic field 2.9.1.2 The second type events Records the total occurred times of events and recharging time, recharging credit and recharging TOKEN of last 10 times ...
User manual- HXE310-KP Standard events: timing, recharging Tampering events: meter cover open, terminal cover open, strong magnetic field Relay events: relay on, relay off Grid events: power off, over voltage, under voltage, reverse, over load 2.10 Relay 2.10.1 Physical features...
User manual- HXE310-KP Normal operation STS closing test Remote closing Note: Smaller number means higher priority level. 2.10.3 Status checking If the meter has executed the closing command, then it is deemed that the relay is under a closed status. If the meter has executed an opening command, then the meter tests if there is current flowing.
User manual- HXE310-KP 2.12 Battery A Lithium battery of 1200mAh is fitted to the meter. When the meter is powered off, the battery supplies the RTC, LCD display, button circuits and event recording mechanism. When the battery voltage is less then 3.4V, the LCD displays this symbol ...
User manual- HXE310-KP Already at the normal working mode Note: When the meter is under installation mode, the relay is close as default. Some clients will require setting the relay open as default. In this situation, when the meter switches to normal working mode, the relay will close automatically.
User manual- HXE310-KP Terminal block Connection diagram Meter installation The meter should be connected correctly according to connection diagram and the terminal screws should be tightened correctly to avoid poor connections that might otherwise damage the meter. The Meter must be installed in a dry and secure location. It is suggested that the meter be installed inside of an enclosure.
User manual- HXE310-KP attached to a solid, fire-resistant chassis plate. Storage and transportation The meter shall be stored under the temperature of -25℃ ~+60℃ , humidity less than 85% and original package, the layers of which should be less than 5. During the transportation and...