Features and functions:
1) Metering active power, long-term operation dispense with maintenance
2) Pre-warning signals or auto power-off initiated, reminding user of
buying electricity when user's energy residual falls within alarming
threshold
3) Buy-before-use paying method, with IC card corresponding to each meter,
providing excellent anti-counterfeiting capability
4) Anti-tampering feature provided, automatically record illegal energy
consumption information
5) Auto trip off when over load, with total overloading times recorded
6) Anti-creeping logical design for no load condition
7) User's serial number and user's cumulative energy value can be
checked by using check card
8) With 4 or 6 bits LED display, displaying current value, residual
value, cumulative energy, load threshold, alarming residual threshold,
and maxim load value
9) Data storage: data can be saved for over 10 years after power off
10) With large capacity magnetic sustaining relay, low power consumption
and high reliability
11) Provision of energy meter with logical encrypted intelligent card or
with CPU card, together with system management solution at customer's
request