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AC Voltmeter TTL Serial Module Power Frequency Communicating Module for Factory Calibration

KWD 2.500
Brand
Eujgoov
Weight
42 g
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
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Special Features

  • Application Layer Protocol: The application layer of the ammeter TTL serial module uses the RTU protocol for communicating. Currently, only 0x03 (read holding register), 0x04 (read input register), 0x006 (write single register), 0x41 (calibration), 0x42 (power reset) and other function code supported.
  • Physics Layer Protocol: The physical layer of the voltage current meter TTL serial module uses a UART to TTL communicating interface. The baud rate is 9600, 8 data bits, 1 stop bit and no checksum.
  • Usage Scenario: The power frequency communicating module is used in situations such as factory calibration and return to the factory for maintenance. By default, the code with 16 digits added after the function code is 0x3721.
  • PCB Integration: The line pin pulse version is more suitable for the integrated use of the PCB of the power frequency communicating module, facilitating the measurement of power and calibration errors.
  • CRC Check: The frequency communicating module's CRC check uses a 16-bit format that takes up two bytes and generates a polynomial of X16+X15+X2+1. The value of the polynomial used for the calculation is 0xA001. The value of the CRC checksum is the result of the checksum of all bytes of the data frame except for the CRC checksum value.

Description

Spec:
Item Type: Power Frequency Communicating 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 Measurement: 0.4W
Resolution: 0.1W
Display Format:
≥1000W, Only Display The Whole Number, Such As 1000W
Power Factor:
Measurement Range: 0.00-1.00
Resolution: 0.01
Measurement Accuracy: 1%
Frequency:
Measurement Range: 45Hz-65Hz
Resolution: 0.1Hz
Measurement Accuracy: 0.5%
Active Power:
Measuring Range: 0-9999.99kWh
Resolution: 1Wh
Measurement Accuracy: 0.5%
Display Format:
≥10kWh, Display Unit Is KWh, Such As 9999.99kWh
Power Zeroing: Software Zeroing
Power Over Limit Alarm:
The Active Power Threshold Can Be Set, When The Measured Active Power Exceeds The Set Threshold, Set The Alarm State.

How to Use:
The TTL interface of this module is a passive interface, which requires external 5V power supply, i.e. all 4 ports must be connected when communicating (5V, RX, TX, GND), otherwise it cannot communicate.

PackageList:
1 x Frequency Communicating Module
1 x Manual

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