Technical parameters
Wiring mode: three wire system, one common ground wire! One circuit board working power supply 4-28V! A voltage line terminal to be tested! Easy to use!
Protection mode: wrong reverse connection, the meter will not work and will not be damaged!
Measuring voltage range:There are multiple measuring ranges, which can be selected at the time of purchase
Display mode:
10V 0.000-9.999v
30V 00.00-30.00v
50V 00.00-50.00v
100V 00.00-99.99v
200V 00.00-99.99-200.0v
500V 000.0-099.9-500.0v
Power consumption of this machine:<=15MA, very power saving
Refresh speed: about 3 times/second
Test accuracy: 0.5% (maximum error=measuring range X0.005)
Measure the impedance:10V-50K 30V-130K 50V-200K 100V-400K 200V-800K 500V-2M
Display color: red, green and blue
Boundary dimension: 39.4 * 10.2 * 9MM
Installation hole pitch: 36MM, hole diameter 2.1MM
Digital tube size: 32mm * 10.2mm (0.28 inch 4-digit integrated digital tube)
*The control part of the voltmeter uses a powerful CPU core. The number of CPU pins can reach as many as 20. Its performance exceeds that of the ordinary 16 pin or 18 pin domestic or Taiwan disposable burning chip. The chip can repeatedly write programs, so each voltmeter can be independently debugged to achieve high accuracy, which is impossible for ordinary disposable single chip computers! The accuracy of voltmeter exceeds that of ordinary low-cost multimeter (for example, the accuracy of some domestic brands of multimeter is still very low, please do not use them as a standard for comparison). The multimeter used in our shop for debugging is American brand multimeter.
Note: The following figure is a picture of the three line table. There is no time to take two lines separately. The principle of the two lines is to weld the red lines and white lines together!
Wiring diagram of three wire voltmeter:
Measured comparison:
The company has strong technical strength. It adopts the first new software algorithm and hardware optimization. A small meter can also make high precision! The error is very small,
The exclusive production of such a small 4-digit meter. At present, Taobao has no second one. The company will maintain its leading technical level and bring you the most practical and reliable products!
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