DTS7666-HX DTS7666 three- -phase electronic energy mete
DTS7666 applies large-scale professional integrated circuits and surface-mounted international advanced technology by using unique design and technology skills. In the stage of designing, producing,te
Details
DTS7666 applies large-scale professional integrated circuits and surface-mounted international advanced technology by using unique design and technology skills. In the stage of designing, producing,testing,aging and factory inspection and other aspects, with high reliability as primary goal, the meters have advantages of high accuracy,good stability ,small size, light weight, Low power consumption, easy to achieve the expansion of modern management functions, as well as having a voltage indication and pulse output signal, when compared with the traditional induction energy meter.
Working principle
As shown in Figure 1.The analog signal of sampling current and the sampling voltage will be sent to the ASIC separately, by the internal buffer amplification,then sent to the multiplier, and the voltage signal and the current signal multiplied. By the A/D conversion,the analog conversed into digital signal, and then the frequency dividing circuit and the drive circuit make the circuit signal pulse output for driving pulse circuit and electricity indicators.
Technical indicators
1.Specifications
| Types | Accuracy grade | Rated voltage(V) | Nominal current(A) |
| DTS7666 | 1.2 | 3x220/380 | 1.5(6)3(6)5(20)10(40) 1.5(60) 20(80) 30(100) |
| DTS7666 | 1.2 | 3x100 | 1.5(6) |
| DTS7666 | 2.3 | 3x380 | 1.5(6) |
| DTS7666 | 2.3 | 3x100 |
2.Start up
Under the required current condition, the meter shall startand continuous recording ( see table)
| Meter | Meter grade | Power Factor | ||
| 1 | 2 | 3 | ||
| Direct connection | 0.04lb | 1.05lb | 0.01lb | 1 |
| By transformer | 0.02ln | 0.003ln | 0.005ln | 1 |
3.Impulse
When applied to 115% of the rated voltage, there's no currentflows in the current loop, the power output will be no morethan 1 pulse.
4.Electrical parameters
Normal operating voltage: 0.9-1.1 Rated voltage
Operating voltage limit: 0.8-1.15 rated voltage
Power consumption: < 10W
5.Climatic conditions5.1 Temperature range
Normal operating temperature:- -20° C~45° C
Extreme working temperature: -35° C~55°
Storage and transport temperature:-25° C~70°C
5.2 Humidity Range
Annual average humidity: s 75%,30 days a year (natural diffusion) up to 95% humidity, the rest of the time up to 85%
6. Dimensions: 23mm x 1 42mmX73mm
Weight: appr. 1.2kg
Instaltation & Wiring
installation dimensions (Figure 2)
