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Help CenterThree Phase STS Keypad Prepaid Energy Meter
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Main Features
Energy Measurement
Total and time-sharing forward active & reactive energy measurement
Total and time-sharing reverse active & reactive energy measurement
Save last one to sixteen months energy data
20 digit Standard Transfer Specification(STS)
Credit data transfered from a point of sale (POS) or vending system is made into a numeric token in a 20 digit number using the Standard Transfer Specification (STS) encryption techniques, which comply with IEC62055 protocol
Load control function
When the residual energy is 0 or the allowable overdraft that both sides agreed, this meter will send out power-off signal to have load switch cut off power. The power will be recovered automatically after inputting new purchased energy amount.
Programmable low credit warning
The meter can be programmed for setting user credit warning threshold, When the meter’s residual energy is equal to credit warning threshold, the meter will start the audio & video warning function in a way of warning light flashing
Tamper detection
With event recording function (including cover-opening event, tamper event and power failure event)
Max. Demand Measurement
Measure total and forward active & reactive maximum demand and time of occurred
Measure total and reverse active & reactive maximum demand and time of occurred
Real Time Measurement
Real-time measurement of the phase voltage, current, total active power, reactive power, apparent power, total power factor, power grid frequency
TOU
4tariffs, 100holidays, 14season tables, 8time zone tables, each table on maximum 14 time zones
Event Log
The last 10 records of following events:Power-down, Programing, Cover opening, Terminal cover opening, Reverse power, Phase Fail.the records include data and time
Optical port interface
Support IEC62056-21 protocol, 1200bps for communication
RS-485 serial interface
Support IEC62056(DLMS/COSEM) protocol, 2400bps for communication
LCD display
Number of digits value field Up to 8, Digit size 6x14.5mm
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