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Product details
1. Overview
DTS and DSS three-phase static energy meters are new instruments designed and manufactured based on the actual electricity consumption of industrial users, using imported specialized large-scale integrated circuits, 16 bit A/D conversion, digital multipliers, application of digital sampling processing technology, and SMT processes. This meter uses an independent three unit metering module to accurately measure the active energy of three-phase forward and reverse directions. Measurement errors have excellent long-term stability. Its performance meets the technical requirements of GB/T17215-2002 standard for three-phase energy meters.
Main features: It has good resistance to electromagnetic interference, low self consumption, high precision, anti electricity theft, wide range, long life, and can 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. It has the function of bidirectional measurement of active energy, and the LCD display shows the total amount of electricity;
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, which makes data more secure and reliable, and power outage data can be stored for a long time (continuous power outages can be stored for more than 10 years);
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 645-2007 Chinese power industry standard.
3. Working principle
DTS and DSS meters use three-phase power supply and can operate normally under any single-phase power supply situation.
When the electric energy meter is working, the voltage and current are sampled separately by the sampling circuit and sent to the large-scale dedicated integrated circuit for buffering and amplification. Then, they are converted into digital signals by a 16 bit A/D converter, processed by a digital multiplier, and sent to the CPU for processing. Finally, the CPU sends the processed data to the display section, step counter, and other output units as needed.
4 Voltage Range
Normal operating voltage: 0.9Un-1.1Un
Maximum operating voltage: 0.8Un-1.15Un
5 Power consumption
Voltage line power consumption: ≤ 2W and 5VA
Current line power consumption: ≤ 1VA
6 Climatic Conditions
Normal operating temperature: -10 ℃+45 ℃ Extreme operating temperature: -20 ℃+55 ℃
Storage and transportation temperature: -25 ℃+70 ℃. The humidity can reach 95% for 30 days of the year (naturally diffused), and sometimes up to 85% for the rest of the time.
7 Mechanical dimensions
Dimensions: 228mm × 144mm × 72mm
Weight: Approximately 1.2kg
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