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DDS5188 single-phase liquid crystal display meter

Brand : Zhongrui

Product origin : Yangzhou,China

Delivery time : 7-10 days

Supply capacity : good

One, Overview:

DDS5188 (LCD) electronic single-phase watt-hour meter using special large-scale integrated circuit to SMT manufacturing process products, and has anti-theft, anti-reverse, Small and light weight and so on. For measuring the rated frequency of 50Hz single-phase AC active energy. The technical performance of this product in line with GB / T17215.321-2008 "1 and 2 static AC active energy meter" in the technical requirements.


Second, function and characteristic:

1, with two-way metering active energy function, LCD counter (LCD) display;

2, the chip has a watchdog system, the data more secure and reliable, long-term preservation of power data (continuous power can be saved for more than 10 years);

3, each isolated power supply, respectively CPU, measuring part of the tuck reliable power supply.


Third, the specifications and main technical parameters

1, specifications

Model number

Reference voltage (V)

Reference current (A)

Power test pulse constant(Imp / kWh)

DDS5188 (LCD type)

220

2.5(10)A

6400

5(20)A

3200

10(40)A

1600

20(80)A

800


2, the basic error:

Load current

Power factor cosΦ

Basic error (%)

1.0

2.0

0.05Ib

1.0

±1.5

±2.5

0.1Ib~Imax

±1.0

±2.0

0.1Ib

0.5L0.8C

±1.5

±2.5

0.2Ib~Imax

±1.0

±2.0

Note: Ib is the rated current Imax is the rated maximum current


3, starting current: meter rated voltage, rated frequency and power factor of 1.0 under the conditions: 1 table for the 0.004Ib, 2 table is 0.005Ib
4, creeping: When the meter of the line without current, and the voltage applied to the line 115% of the rated value, the output pulse of not more than one
5, rated voltage, frequency: 220V ± 10% 50Hz
6, power consumption: voltage lines ≤ 2W and 10VA, current lines ≤ 0.6VA
7, Weight: about 0.5kg


Fourth, the working principle:


Watt-hour meter from the voltage divider to obtain the voltage sampling signal, the shunt to obtain the current sampling signal, the multiplier to get the voltage and current product signal, and then by frequency conversion to produce a frequency proportional to the voltage and current count pulse to promote the counter to display power value. At the same time through the CPU processing power and other related information is stored in the memory.


Fifth, the installation and use:
1, the meter in the factory before passing inspection and seal, you can install. The meter should be installed in the indoor or outdoor table box, the base of the installation table should be fixed on the solid, fire-resistant walls, the proposed installation height of 1.8 meters, the use of environment -25 ℃ ~ +45 ℃, relative humidity of not more than 85% There should be no corrosive gas in the air.
2, shape and installation dimensions:

3, the power meter should be wiring diagram, ①, ②, ③, ④ terminal is best to use copper or copper wiring to introduce, ⑤, ⑥ pulse signal output end,
4, wiring diagram


Six, guarantee period:
The meter shall be repaired or replaced free of charge within 18 months from the date of manufacture if the user complies with the requirements specified in this manual and if the meter does not meet the technical requirements when the lead seal of the manufacturer is complete.




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