Digital Multifunction Meter AC Voltage Current Test TTL Serial

Digital Multifunction Meter AC Voltage Current Test TTL Serial Description

1、ROW PIN PULSE: The newly upgraded row pin pulse version is more suitable for integrated use of PCBs, making it easier to measure power and calibrate errors. 2、COMM INTERFACE: The physical layer uses a comm interface from UART to TTL, with a baud rate of 9600, 8 data bits, 1 stop bit, and no verification. 3、FUNCTION CODES: Supports 0x03 (read hold register), 0x04 (read input register), 0x006 (write single register), 0x41 (calibration), 0x42 (power reset), etc. The 0x41 function code is only for internal use (address can only be 0xF8). 4、HOST SLAVE MACHINE: The slave does not need to reply to the host and uses the address OxF8 as the universal address, which can only be used in a single slave device and can be used as a calibration address. 5、CRC VERIFICATION: Adopts a 16 bit format, occupying two bytes, and generates a polynomial of X16+X15+X2+1, the polynomial value used for calculation is 0xA001.
Item Type: Multifunction Meter Module
Material: PCB
Voltage Measurement Range: 80-260V
Resolution: 0.1V
Measurement Accuracy: 0.5%
Current Measurement Range: 0-100A
Starting Current: 0.02A
Resolution: 0.001A
Measurement Accuracy: 0.5%
Active Power Measurement Range: 0-23kW
Starting Power: 0.4W
Resolution: 0.1W
Display Format: