1. Overview

2. Technical Specifications

• Power Supply: 100–240 VAC / 24 VDC
• Input Signal: 4–20 mA (standard)
• Output Signal: 4–20 mA (configurable)
• Display: Real‑time flow, total flow, average flow
• Communication: RS485 (Modbus RTU)
• Operating Temperature: -20°C to 60°C
• Dimensions: Compact design for DIN‑rail mounting
• Accuracy: 0.5% – 1% (depending on the flowmeter type)

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3. Key Features

• Multi‑function Calculation: Computes real‑time flow, total flow, and average flow, suitable for batching and metering applications.
• Reliable Communication: Supports Modbus RTU for seamless data transfer to PLCs or host systems.
• Flexible Configuration: Adjust flowmeter parameters (K‑factor, baud rate, etc.) via DIP switches or configuration software.
• Space‑Saving Design: Compact size with DIN‑rail mounting for easy integration into control cabinets.

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4. Structure and Components

• Power Supply Module: Converts external AC/DC power to internal DC power for the module.
• Input Circuitry: Receives and processes the 4–20 mA signal from the flowmeter.
• CPU: Performs flow calculations using the input current and configured K‑factor.
• Display Module: LCD or LED screen showing flow rate, total flow, and other data.
• Communication Module: RS485 transceiver enabling Modbus communication.
• Output Circuitry: Converts processed data into 4–20 mA or other analog outputs.

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5. Application Areas

• Oil & Gas: Flow measurement and batching control for oil and gas.
• Food & Beverage: Metering of syrups, beverages, sauces, and other liquids.
• Pharmaceutical: Precision dosing of chemicals and solvents.
• Water Treatment: Flow metering for drinking water and wastewater.
• Paper & Textile: Chemical dosing and additive measurement.

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6. Installation and Maintenance

Installation Guidelines

• Power Connection: Connect the module to a 100–240 VAC or 24 VDC power supply.
• Input Signal: Connect the flowmeter’s 4–20 mA output to the module’s “Input” terminals.
• Output Signal: Connect the “Output” terminals to a PLC or other control system if feedback is required.
• Wiring: Observe correct polarity (typically red = +24V, black = 0V).

Maintenance Recommendations

• Environment: Keep the installation area dry and free of corrosive gases. Maintain temperatures between 0°C and 50°C.
• Surge Protection: Use power line filters in high‑EMI environments.
• Calibration: Perform calibration every 1–2 years to ensure optimal accuracy.