Post paid remote reading and remote control centralized multi-user (24 households and below) external transformer

1. Overview

The DDSH1521 multi-user electric energy meter uses an external transformer to measure high currents with an accuracy of up to 1.0 level; Simultaneously measure and detect combinations of seven or fewer three-phase households; Each household can be provided with a set of control contacts to achieve control over their electricity usage; Prepaid (Countdown) function: Users must purchase electricity first before using it, and there are various payment methods available for power outages due to overdue payments; Low battery alarm function: The alarm battery can be set, and when the user's electricity consumption is below the set value, the meter will provide a power-off prompt to the user. This energy meter adopts specialized large-scale integrated circuits and SMT technology for measuring electrical energy to ensure measurement accuracy and reliability, and uses LED displays.

2. Product features

(1) Centralized detection and display of electricity meters, small meter box size, convenient meter reading, and prevention of electricity theft.

(2) Adopting high-precision miniature power transformers, the electrical isolation effect is good, and the overload capacity is strong.

(3) Realize remote networking and on-site meter reading.

(4) The case is stamped and formed, with good sealing performance, in compliance with the national standard GB/T17215-2002.

(5) The circuit is powered by a three-phase power supply.

(6) Simultaneously equipped with short-range infrared meter reading and remote computer networking meter reading functions.

(7) Using dedicated wiring terminals and double bolt crimping for more reliable use.

3. Main functions of the product

3.1 Measurement function

The external high-precision current transformer of the electric energy meter can measure high-power electrical energy.

3.2 Output Function

3.2.1 The electric energy meter adopts a passive isolation type power pulse output interface, and the pulse output waveform is a rectangular wave.

3.2.2 The electric energy meter has the function of outputting electricity pulses, which are indicated by LED light emitting diodes.

4. Product technical specifications

(1) Calibration current: 1.5 (6A);

(2) Working voltage: AC220V/380V

(3) Accuracy level: 1.0 level;

(4) Environmental temperature: -20 ℃~55 ℃

5. Size:

5-7S -- (width) 570 * (height) 340 * (thickness) 110mm

1-4S --- (width) 480 * (height) 340 * (thickness) 110mm