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DDSY168斜角-副本

Single Phase Keypad Prepaid Electricity Meter

The DDSY168 is used for a wide range of applications, due to an improved dynamic range allowing a basic current of 5 Amp while retaining a maximum current of 80 Amp and extended functional features. It is a compact and keypad based design in a BS8565 standard housing and maintains the rugged RF immunity withstand of 30V/m and IP54 rating, allowing it to be installed in harsh environments.

Main Features

  • 20 digit (Standard Transfer Specification) STS encryption
  • Detection of significant reverse energy (SRE)
  • IEC62056-21 compliant port allowing for easy data interrogation 
  • Disconnects on overload and no credit
  • Dual power source working on both prepaid and credit mode
  • Programmable load limit and low credit warning
  • Detection and record tamper event such as cover open, reversal, black-out, etc.
  • Easy access to 12 months historical consumption data and last 5 token entered

 

Electrical parameters:

Voltage

Nominal voltage Un

230V

Limited voltage

70%~120%Un

Frequency

 

Nominal frequency fn

50-60Hz

tolerance

5%

Current

 

Basic current(Ib)

5A

Maximum current(Imax)

80A

Starting current(Ist)

20mA

Active energy constant

1600imp/kWh

Measurement Accuracy

 

Active energy to IEC62053‐21

Class1.0

Burden

 

Voltage circuit

<2W  <8VA

Current circuit

<1VA

Temperature range

 

Operation meter

-25℃ to+70℃

Storage

-40℃ to+85℃

 

Insulation

Insulation level

4kV rms 1min

Voltage impulse withstand

8kV 1.2/50 μs

Insulation System Classification

Protective Class II

 

 

Electro Magnetic Compatibility

Electrostatic discharges

 

Contact discharge

8kV

Air discharge

16kV

Electromagnetic RF fields

 

27MHz to 500MHz typical

10V/m

100kHz to 1GHz typical

30V/m

Fast transient burst test

4kV

Mechanical requirements

 

Meter shell Protection Rate

IP54

Insulation System Classification

Protective Class II

Maximum cable size

8 mm


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