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Products

Meter Name

Model

Configuration

Local Single-phase  Electronic Prepayment Watt-hour Meter

DDZY645C

CPU card, RS485 interface, encryption module, inbuilt or external switch

DDZY645S

RF card, RS485 interface, encryption module, inbuilt or external switch

Local Single-phase  Electronic Prepayment Watt-hour Meter (Carrier)

DDZY645C-Z

CPU card, RS485 interface, encryption module, inbuilt or external switch

DDZY645S-Z

RF card, RS485 interface, encryption module, inbuilt or external switch

Remote Single-phase Electronic Prepayment Watt-hour Meter

DDZY645

RS485 interface, encryption module, inbuilt or external switch

Remote Single-phase  Electronic Prepayment Watt-hour Meter (Carrier)

DDZY645-Z

Carrier module, encryption module, inbuilt or external switch

 

Main Functions

  • Time-share metering of positive and negative active electric energy totally or separately
  • Measurement of voltage, current (including neutral line current), active power, power factor, etc.
  • Record of zero clearing, programming, timing, power-down, remote switch on / off, opening, etc.
  • 2 sets of time zones; 2 sets of rate time intervals, each set with 4 rates and 14 time intervals per day; and 2 sets of step tariff
  • Functions of electric quantity freezing at fixed time, instantly, daily, at agreed time, and at integral point
  • Power-off key wake-up function
  • Fault message notice and alarm indication
  • Standard configuration of an infrared communication interface, an RS485 interface, with simultaneous communication without any interference
  • Local prepayment watt-hour: Real-time electric energy calculation within the meter. The electronic meter is allowed to be in the switch-on state remote-controlled or locally after power down, and restores the power by local manual way.
  • Remote prepayment watt-hour: Electric energy calculation is completed in the remote electricity vending system. The meter doesn’t store and display electric charge and electricity price. The meter receives the switch-out, switch-on, and ESAM data reading instructions sent out from the remote electricity vending system 

 

Technical Parameter 

Accuracy class

Level 1, Level 2

Operating voltage

220V ± 30%

Current Specifications

Basic current

Current Specifications

Maximum current

 

Overall power consumption

Voltage circuit ≤ 1.5W/10VA, current circuit ≤ 1VA

Baud rate

Range: 1,200 ~ 9,600bps

RS485, the default 2,400bps carrier interface and 1,200bps infrared interface.

Environmental conditions

Standard operating temperature: -25℃ ~ 60℃

Extreme temperature: -40℃ ~ 70℃

Relative humidity: 10 ~ 100%

Dimensions

Remote single-phase meter: L*W*H = 160mm*112mm *58mm

Local single-phase meter: L*W*H  = 160mm * 112mm *71mm

Installation dimensions

X * Y = 100mm *140 (150) mm

Stand-alone weight

About 1.2kg

  

  

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