DDS6111 single-phase electric meter (RS485)

1Overview

DDS6111 single-phase electronic energy meter is an instrument designed and manufactured based on the actual power consumption of industrial users, using integrated circuits, 16 bit A/D conversion, digital multipliers, digital sampling processing technology, and SMT processes. This meter uses an independent metering module to accurately measure single-phase active energy. Strong stability of measurement error.

Main features: It has good resistance to electromagnetic interference, low self consumption, high accuracy, anti-theft, wide range, long service life, and can be used to display liquid level.

This meter is suitable for ambient temperatures ranging from -10~50 ℃ and relative humidity not exceeding 85%.

2. Functions and Features

1. Having a singleThe function of measuring active energy is to display the total amount of electricity on the LCD screen;

2. Equipped with RS-485 and infrared communication, it can remotely and conveniently read the total power of the electric energy meter;

3. Can set or retrieve parameters such as total power consumption, instrument constant, meter address, meter password, etc;

4. Equipped with a programming switch, capable of online programming;

5. The chip has a watchdog system inside, making data more secure and reliable, and storing power outage data for a long time

6. The isolated power supplies provide reliable working power for the CPU, metering section, and RS485 interface.

7. It has a phase failure indication function.

8. Communication protocol

According to the "Multi function watt hour meter communication protocol" DL/T 645-1997 Chinese power industry standard.

3. Start up

Under the conditions of reference voltage, reference frequency, and COS φ=1.0, the instrument should be able to continuously measure electricity with a load current of 0.001Ib (level 1) and 0.002Ib (level 2).

4. Diving

When the rated voltage of the voltage circuit is 115% and there is no current in the current circuit, the test output of the instrument should not generate more than one pulse.

5 Voltage Range

Normal operating voltage: 0.9Un-1.1Un

Maximum operating voltage: 0.8Un-1.15Un

6 Power consumption

Voltage line power consumption: ≤ 2W and 5VA

Current line power consumption: ≤ 1VA

7 . Climatic conditions

Normal operating temperature: -10 ℃+45 ℃ Extreme operating temperature: -20 ℃+55 ℃

Storage and transportation temperature: -25 ℃+70 ℃. Humidity can reach 95% for 30 days of the year (naturally diffused), and sometimes up to 85% for the rest of the time