STS Prepaid Single Phase Electric Meter Keypad Prepayment Meter for
Total and time-sharing forward active & reactive energy
Total and time-sharing reverse active & reactive energy
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
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 energyis equal to credit warning threshold, the meter will start the
audio & video warning function in a way of warning light
With event recording function (including cover-opening event,
tamper event and power failure event)
Communication standards DL/T645-2007, 1200bps for communication
Support IEC62056-21 protocol
Communication standards DL/T645-2007, 2400bps for communication
Support IEC62056(DLMS/COSEM) protocol
Number of digits value field Up to 8
Digit size 4x10mm
|Nominal voltage Un||230V|
|Extended operating voltage range||80%~115%Un|
|Nominal frequency fn||60Hz|
|Active energy constant||1600imp/kWh|
|Active energy to IEC6205321||Class1.0|
|Reactive energy to IEC6205323||Class2.0|
|Power consumption in Voltage circuit||<2W <8VA|
|Power consumption in current circuit||<1VA|
|Operation meter||25ºC to+70ºC|
|AC Insulation strength||4kV at 50Hz during 1min|
|Impulse voltage 1.2/50 μs mains connections||8kV|
|Electro Magnetic Compatibility|
|27MHz to 500MHz typical||10V/m|
|100kHz to 1GHz typical||30V/m|
|Fast transient burst test||4kV|
|Meter shell Protection Rate||IP54|
＊ Use only isolated tools.
＊ Do not connect the meter to a 3 phase - 415V AC - network.
＊ Place the meter only in dry surroundings.
＊ Make sure the used wires are suitable for the max current the
meter can measure.
＊ Make sure the AC wires are installed correctly before activating
＊ Do not touch the meter connecting clamps directly with your bare
hands, with metal, blank wire or other material as you will have
the chance of an electricity shock and a possible chance for health
＊ Make sure the protection cover is placed after installation and
has been sealed.
＊ Installation, maintenance and repair should only be done by a
＊ Never break the seals or open the front cover as this might
influence the functionality of the meter.