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1. User Manual for Dexin Electronics D-600 Digital Mass Flow Meter/Controller: [2]
The core content of the user manual for Dexin Electronics D-600 Digital Mass Flow Meter/Controller is as follows:
1. Product Overview Dexin Electronics D-600 Digital Mass Flow Meter/Controller is a high-precision flow measurement and control device that uses digital signal processing technology and is suitable for mass flow measurement and closed-loop control of gases or liquids. Its core functions include real-time traffic display, total accumulation, multi parameter output (such as RS485/Modbus communication), and alarm function, which are widely used in industries such as chemical, food, and semiconductor. 2. Installation and Wiring Requirements: The equipment should be installed horizontally or vertically in an environment with low vibration and stable temperature, avoiding direct sunlight or strong electromagnetic interference. Electrical connection: Power supply: Provide 24V DC power supply to ensure correct polarity and avoid short circuits. Signal output: Supports 4-20mA current output or RS485 digital buried sensing feedback communication, and the corresponding wiring method needs to be selected according to the interface type of the control system. Alarm setting: It can configure the output of flow over limit or fault alarm signals, and needs to be connected to PLC or sound and light alarm.
III. Operation and Calibration Parameter Setting: Set the flow unit (such as kg/h, L/min), range, and alarm threshold through the device panel buttons or upper computer software.
. Support multiple traffic control modes, with pre-set traffic target values for different time periods. Calibration process: Zero point ca_600x400.jpg)
4. Common faults and solutions Fault 1: Abnormal flow display (such as large fluctuations or zeroing) Possible causes: sensor blockage, pipeline vibration, unstable power supply.
. Process: Check if the sensor inlet/outlet is blocked by impurities, clean and restart the device. Confirm that the pipeline is firmly fixed and bending is reduced to minimize vibration interference. Measure whether the power supply voltage is within the range of 24V DC ± 5%, and replace the power supply if necessary. Fault 2: Communication interruption (RS485 no response) Possible causes: wiring errors, address conflicts, baud rate mismatch. Process: Check if the A/B wires of RS485 are connected in reverse, and ensure that the terminal resistor is installed (if it is for long-distance communication). Confirm whether the device address is duplicated with other devices through the upper computer software and modify it to a unique address. Check the baud rate settings of the equipment and control system (such as 9600bps) to ensure consistency. Fault 3: Alarm function failure Possible causes: incorrect alarm threshold setting, disconnected alarm output circuit. Process flow: Enter the parameter setting menu and check if the upper and lower limit values of the alarm are reasonable (such as the upper limit of the flow should not be lower than the normal working value). Use a multimeter to measure the continuity between the alarm output terminals (such
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