General introduction
DTSY200-B meter is used to measure three-phase active electric energy in the 50Hz AC circuit. Adopting high-accuracy three-phase sampling special purpose chips, the product can carry through sampling measurement and transmit it to intelligent microprocessor. After conversion and processing, the energy display and interface control are completed. Data transfer is completed by IC card. Energy and power consumption data are mutually transferred between the meter and vending management system to realize the functions of electric energy measurement and electricity charge prepayment.

Main technical parameters

* Current : 3×5(20) A, 3×10(40) A, 3×15(60) A, 3×20(80) A

* Accuracy class: 1.0 class

* Reference voltage: 3×220/380V

* Reference frequency: 50HZ

* Operation voltage range 0.9Un~1.1Un

* Normal temperature range: -25 ℃ ~+ 55 ℃

Main functions

* Monitor and control function

* When the remnant energy is less than the presetting warning quantity 1, the meter will flash remnant energy at all times to remind the user to purchase electricity. * When the remnant energy is less than the presetting warning quantity 2, the meter will turn off power once to remind the user. Three minutes later after inserting electricity card, the user can manually close breaker outside the meter. Thus, the meter resumes to supply power. * When the remnant energy reduces to zero, the meter will turn off power automatically.

* Memory function: The remnant energy and information stored in the meter will not be lost due to power supply failure over a long period.

* Display function

◆LED displays the remnant electric quantity (kWh).

◆Register displays the accumulative energy charge.

* Identification function: The meter won't work while the non-designated IC card or medium is used.

* Adding function: When the user insert prepayment card, in which purchased energy is stored into the meter, the remnant energy will be added to the newly bought energy.