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1、 Overview DTS2026
DTS2026 three-phase four wire electronic active electronic watt hour meter, used in the power supply department door The meter adopts imported special large-scale integrated circuit, 16 bit A/D conversion, digital multiplier, digital sampling processing technology and SMT process, and is designed and manufactured according to the actual power consumption of industrial users. It is used to measure the AC three-phase active electric energy with the frequency of 50Hz, and the electric quantity is displayed by a meter, so the reading is intuitive and convenient for meter reading. The instrument can expand the infrared and RS485 communication functions, providing advanced and reliable metering tools for three-phase electric energy measurement.
The metering module adopted by the meter can accurately measure three-phase positive and negative two-way active electric energy. The measurement is accurate, stable, reliable, and has the characteristics of good anti electromagnetic interference, low power consumption, high accuracy, anti theft, wide range, long life, LED LCD display, etc. This instrument complies with DL/T 645-1997 Communication Protocol for Multifunctional Meters and GB/T 17215.321-2008 Static AC Active Energy Meters of Level 1 and Level 2.
II Specifications, models and technical indicators of watt hour meter
2.1 Specification and model
Model and name Accuracy and grade Rated voltage Basic current
DTS2026 three-phase four wire electronic power function 485 infrared 1.0
Level 2.0 3 * 220/380V 3 * 1.5 (6) A
3*3(6)A
3*5（20)A
3*10(40)A
3*15(60)A
3*20(80)A
3*30(100)A
2.2 Basic error (basic error of balanced load is limited)
one
Note: (Ib is the basic current In is the rated current Imax is the larger current)
The percentage error of each current point of unbalanced load is limited to ± 3.0 for level 2 meters.
2.3 Starting
Under the condition of reference voltage, reference frequency and power factor of 1.0, the instrument with load current of 0.004Ib (Level 2) and 0.005Ib (Level 3) shall be able to start and continuously measure electric energy.
2.4 Sneaking
The test output of the instrument shall not generate more than one pulse when the voltage circuit is added with 1.15 times of the reference voltage and there is no current in the current circuit.
2.5 Operating voltage range
Normal working voltage: 0.9Un ～ 1.1Un Limit working voltage: 0.0Un ～ 1.15Un
2.6 Power consumption
Voltage line power consumption: ≤ 2W (10VA) Current line power consumption: ≤ 4.0VA
2.7 Environmental conditions
Normal operating temperature: - 10 ℃~45 ℃, operating temperature limit: - 25 ℃~55 ℃,
Storage and transportation temperature: - 25 ℃~70 ℃ Relative humidity: annual average ≤ 75%
2.8 Overall dimension: 228mm × 145mm × 72mm;
2.9 Weight: about 1.5kg;
2.10 Safety performance: the product meets all safety indexes and requirements of GB/T 17215.321-2008.
2.11 Electric quantity display adopts 6-digit register display, 5-digit integer and 1-digit decimal
3、 Main functions of watt hour meter
3.1 Electric energy metering function: electric energy metering function: active electric energy metering. three-phase Power Supply Power supply, one or two phase power failure, measurement accuracy will not be affected.
3.2 Output interface: with optocoupler isolated active passive pulse output interface.
3.3 Phase loss indication function: three generators Phototube To indicate whether there is phase loss. The three light-emitting tubes represent three phases A, B and C respectively. When a phase is in phase loss, the corresponding indication lamp Not lit.
3.4 Communication function: with infrared and RS485 communication interfaces, it is convenient for users to read power data through the communication interface, which is convenient and reliable
