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Tags: DC Voltmeter, Digital Voltmeter, DC Ammeter, Digital Ammeter, Voltage Meter, Current Meter, Digital Sensor
Description:A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current. This device is a metering device to measuring DC voltage and current. It can measure voltage, current and ambient temperature at the same time and voltage and temperature can be switched through the buttons on the back.This DC Voltmeter Ammeter has screen display for indicating voltage and current, with a MODBUS protocol functions. Modbus is a communication protocol developed by Modicon systems. In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the Modbus Master and the devices supplying information are Modbus Slaves. It can be used with PC, PLC communication equipment for data collection.
Features:Can measure the voltage, current, ambient temperatureOutput Type: DigitalVoltage range: 0V ~ 100VDCCurrent range: 0A ~ 10ADC (high current temperature exceeds 60 degrees, please strengthen the heat)Voltage and Current Accuracy: 1% (± 1 word, the greater the voltage and current range, the corresponding reduction in accuracy)Temperature range: -10°C ~ 100°CTemperature Accuracy: 1%Interface: Modbus RTU protocol, communication RS485Size: 47.8mm x 28.8mm x 30mm
Modbus test description: 1. Connect the hardware Connect RS485 serial port, A connection A, B connected B, connected to the measured voltage. 2. Software settings: In the "communication settings" set the serial port number, open the serial port. In the "analog acquisition" item set the module address (the default address is "1", in the case of the module address is not clear, you can "module address change" item in the module address changes) In the "analog acquisition" click on the "acquisition" command on it. If the "communication error" to confirm the RS485 interface A, B-side is reversed.
Note: This version can only use an independent power supply connection!
Package Include:1 x LCD DC Digital Display
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