GUANGZHOU GENY ELECTRIC CO., LTD

Transcription

1 SZ-01A-K3E Single Phase Standard Meter User s Manual ( Ver. 1.0 ) China Metrology Certificate No. Guangzhou GUANGZHOU GENY ELECTRIC CO., LTD

2 Content 1. SUMMARIZE TECHNICAL PARAMETER CIRCUIT PRINCIPLE USE DESCRIPTION... 5 Front board... 5 Main display:... 5 Selection of pulse output mode... 6 Selection of current input port on rear board... 6 Rear board WIRING PACKAGE:

3 1. Summarize SZ-01A-K3E wide-range standard meter uses the newest electric technical in the world. The core of SZ-01A-K3E is high-speed DSP CPLD and MCU, it has the high-speed A/D converter with self-calibration at the same time. It can sample AC signal in high speed and deal with it in special way by DSP, this makes the circuit much simpler. It can calculate and measure AC signal exactly. Only three energy constant pulse output of SZ-01A-K3E advantages the user. It can measure voltage current active power reactive power apparent power phase angle power factor frequency etc at the same time. It takes many kinds of balance technical and methods of data processing, in order to get the 0.01%RD of relative error. SZ-01A-K3E has strong ability of communication. There are two communication ports on rear board and RS-485, they can connect PC or calibration platform respectively. Connect PC to to calibrate the meter. Meter can realize long-distance communication through the telephone line when it s port is connected to a Modem, thus the meter can send the data to internet and realize long-distance automatic measure. Page 1

4 2. Technical parameter Standard condition: Temperature of environment: 20 ± 2 Relative humidity: 60 % ± 15 % Supply power: voltage 220V ± 22V frequency 50Hz ± 2Hz Magnetic intensity: 0.025mT Warm-up: the time of warm-up 90minutes Rating current 0.001A 0.01A 0.1A 1A (1A input port on the rear board) 10A (10A input port on the rear board) 100A (100A input port on the rear board) Imax = 160A Rating voltage: 50V 100V 200V 400V Umax = 480V Precision Current: ± 0.01%RD 10mA~120A ± 0.03%RD 1mA~10mA Voltage: ± 0.01%RD 50V~400V Power: Energy: ± 0.05%RD 5V~50V Active power: ± 0.01%RD (50V~400V,0.05A~120A, cosφ 0.5) ± 0.05%RD (50V~400V,0.001A~0.05A, cosφ 0.5) Reactive power: ± 0.01%RD (50V~400V,0.05A~120A, sinφ=1.0) ± 0.01%RD (50V~400V,0.05A~120A, sinφ=0.5l/0.8c) Active energy: ± 0.01%RD (50V~400V,0.05A~120A, cosφ 0.5) ± 0.05%RD (50V~400V,0.001A~0.05A, cosφ 0.5) Reactive energy: ± 0.01%RD (50V~400V,0.05A~120A, sinφ=1.0) ± 0.05%RD (50V~400V,0.05A~120A, sinφ=0.5l/0.8c) Power factor: Range of measurement: 0~± Precision: ± 0.001%RD(cosφ 0.5) Phase: Range of measurement: 0 ~360 Precision: (U 50V, I 0.05A) Frequency: Range of measurement: 45Hz~65Hz Precision: ± %RD (U 50V) Pulse Output: Page 2

5 Constant: TTL level load ability > 2kΩ C H =10 12 imp/kw h (imp/kvar h) (0~0.001A ) C H =10 11 imp/kw h(imp/kvar h) (0.001~0.01A) C H =10 10 imp/kw h(imp/kvar h) (0.01~0.1A) C H =10 9 imp/kw h(imp/kvar h) (0.1~1A) C H =10 8 imp/kw h(imp/kvar h) (1~10A) C H =10 7 imp/kw h(imp/kvar h) (10~100A) C L = C H / imp/kw h(imp/kvar h) Use condition Surrounding temperature: 5 ~40 Relative humidity: 35%~85% Temperature affection (5 ~40 ) Voltage, current and frequency ±2ppm/ Power ±5ppm/ Communication port: RS-485 (use for manufacturer calibration) Power supply : Voltage: AC220V ± 22V Frequency: 50Hz ± 2Hz Power consumption: 45VA(max) Dimension: W H D = 325mm 109mm 288mm Weight: 5.5kg Page 3

6 Page 4 3. Circuit principle Voltage Voltage Range Switch Range Switch CT CT CPLD CPLD D S P D S P MCU MCU Keyboard Keyboard RS-485 RS-485 LCD display LCD display Uin Uin Iin Iin Voltage Voltage Range Switch Range Switch CT CT CPLD CPLD D S P D S P MCU MCU Keyboard Keyboard RS-485 RS-485 LCD display LCD display Voltage Voltage Range Switch Range Switch CT CT CPLD CPLD D S P D S P MCU MCU Keyboard Keyboard RS-485 RS-485 LCD display LCD display Uin Uin Iin Iin Fig.1 SZ-01A-K3E diagram

7 4. Use description Front board Fig.2 Front of Instrument Display window Status indicator Function key Function Key: [Frequency] key: Select pulse output mode [Connection & Constant] key: Select the current input port on rear board and current range setting Display Window: LCD can show the measuring parameter one by one and the setting value, Main display: The meter enter straightly this page after electrify, it can dynamic show the each electrical parameter, see fig. 3 U = V I = ma Φ = COSΦ = P= W Q= var S = VA f = H z Fig.3 main display page Page 5

8 Display following parameters: U Voltage (V) I Current (A) φ Phase angle ( ) cosφ Power factor P Active power (W) Q Reactive power (var) S Appearance power (VA) f Frequency (Hz). Selection of pulse output mode Press [Frequency] key can circularly select Pulse output (High frequency / Low frequency) mode Active Output pulse is active energy Reactive Output pulse is reactive energy Selection of current input port on rear board Press [Connection & Constant] key can circularly select current input port and range. 1A input current by 1A port on rear board (Corresponding energy constant C H =10 9 imp/kw h (imp/kvar h)) 10A input current by 10A port on rear board (Corresponding energy constant C H =10 8 imp/kw h (imp/kvar h)) 100A input current by 100A port on rear board (Corresponding energy constant C H =10 7 imp/kw h (imp/kvar h)) It is 100A and active energy status after electrify or reset. It can be real time switched by communication. Rear board There are two input pins of voltage. Input voltage is 50V-400V. There are 5 input pins and the small black pin is common pin of 1A, 10A and the big black pin is the common pin of 100A, the maximum value of overload current is 20% of rated current at each of input pin. Page 6

9 Fig. 4 Rear of Instrument High frequency pulse output (BNC) Low frequency pulse output (BNC) C socket (DB9 female) RS-485 socket (RJ-45) 100A current input port 10A current input port 1A current input port Voltage input port Power supply socket Power switch Note: User must connect the wire according to the current value for there has no function of automatic switch among 1A, 10A and 100A inside meter. C takes standard DB9 female socket, the pin is Fig 5 C port Pin 2 RXD Pin 3 TXD Pin 5 -- GND. Page 7

10 5. Wiring I I U1 U Fig.6(a) Wiring of 1A range I I U1 U Fig.6(b) Wiring of 10A range Page 8

11 I I U1 U Fig.6(c) Wiring of 100A range Page 9

12 6. Package: It should include: Power supply cable Pulse output cable Certification User manual communication cable Case GUANGZHOU GENY ELECTRIC CO., LTD. Add: Yangcheng Building, Gaotang Industrial Zone, Tianhe District, Guangzhou, CHINA PC: Tel: Fax: Web: Page 10