Main Feature
High Precision: Fully electronic type design, choose imported specialized measurement chip, high precision, high sensitivity. Precision be insusceptible of frequency, temperature, voltage and ultra harmonics.

 High Quality: Use SMT manufacturing technique, choose international famous brand, long life elements, ensure the steady quality.

 Low Consumption: Use the optimum design, the self-consumption≤ 1W, when used in large scale, it's able to reduce electric grid consumption, increase power supply effect.

 Running Stably: It possesses good anti-interference performance, strong overload capacity, wide working range; Make the watt-hour meter has strong running stability.

 Data Display: Programmable to LED display electric consumption and running conditions of each time-of-use and rate.

 Relay: Built-in magnet latching relay or circumscribed control relay (optional), ensuring secure control.

 Software Compatible: Single phase and three phase prepayment watt-hour meter is able to share the same vend power management system.

 Strong Confidentiality: Adopting the logical encrypt card to data communicate, ensure one meter one card, and possesses better confidentiality.

Main Technical Parameters
Type  DDSY1998  Life  10 Years
Accuracy Class  1.0, 2.0  Weight  1Kg
Display  6-digit LCD  Dimensions  190mm*108mm*60mm
Rated Voltage  220V  Voltage of Backup Cell  3.6DC
Power Consumption  Voltage Circuit ≤ 1.5W, 10VA
Current Circuit ≤ 0.4VA  Nominal Current  5(20)A/10(40)A/15(60)A/20/80A
   Starting Current  0.004lb
   Meter Constant  3200, 1600, 800, 400
Creeping  Possess anti-creeping logical circuit design  Rated Frequency  50Hz
   HI-POT  ≥ 2000V
Ambient Temperature  -25~ +55  Relative Humidity  ≤ 85%.