Column Electronic Flow Sensor

Product Overview

The Column Electronic Flow Sensor is an intelligent digital flow measurement and control device that integrates flow measurement, display, output, and control into one compact instrument.

The product consists of a turbine flow body and an electronic control module. The pulse signal generated by the turbine is amplified through a high-precision, low-temperature drift amplifier, then converted into a digital signal by a high-precision A/D converter for processing by the built-in microprocessor.

The processed data enables accurate flow measurement, remote monitoring, and process control, providing reliable performance for industrial automation systems. The sensor is easy to configure, simple to operate, safe, and highly reliable, making it suitable for a wide range of industrial flow monitoring applications.

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Operating Principle

The Column Electronic Flow Sensor operates using a turbine flow measurement principle.

As fluid flows through the turbine body, the turbine rotor rotates proportionally to the flow velocity and generates pulse signals. These signals are amplified by a high-precision low-temperature drift amplifier and converted into digital data through a high-resolution A/D converter.

The built-in microprocessor processes the collected data to calculate:

• Instantaneous flow rate
• Total accumulated flow
• Switching output status
• Remote monitoring and control signals

The processed information is displayed locally on the LCD screen and can also be transmitted to external control systems for automation and process management.

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Product Features

• Intelligent digital flow measurement and control
• Integrated measurement, display, output, and control
• High-precision turbine flow measurement
• Built-in microprocessor processing
• LCD digital display
• Instantaneous flow display
• Cumulative flow display
• Remote flow monitoring
• Remote flow control
• On-site calibration
• Flexible operating modes
• Multiple measurement units
• Switch alarm function
• Configurable output signals
• PNP/NPN selectable
• Normally Open (NO) / Normally Closed (NC) selectable
• Easy operation and configuration
• Safe and reliable performance

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Functional Description

The Column Electronic Flow Sensor provides comprehensive flow monitoring and control functions, including:

• LCD display of instantaneous flow rate
• LCD display of total accumulated flow
• Remote flow monitoring and control
• On-site calibration under actual operating conditions
• Freely selectable measurement modes
• Switchable engineering units
• Adjustable flow alarm settings
• Configurable output signals according to operating mode and parameter settings
• Selectable PNP/NPN output
• Selectable Normally Open (NO) or Normally Closed (NC) switch output

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Product Applications

The Column Electronic Flow Sensor is widely used in:

• Hydropower systems
• Municipal water supply
• Petroleum industry
• Chemical industry
• Mechanical equipment
• Hydraulic systems
• Lubrication systems
• Industrial automation
• Process control systems
• Fluid monitoring systems

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Installation Instructions

To ensure reliable operation, follow these installation guidelines:

1. Before installation or removal, confirm that there is no fluid inside the system to prevent leakage.
2. Connect the sensor securely to the selected process connection.
3. Tighten the connection completely.
4. Recommended tightening torque: 25–35 Nm.
5. For applications involving severe vibration or mechanical shock, use hose fixation to achieve mechanical decoupling.

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Technical Highlights

Measurement Technology

• Turbine flow measurement
• High-precision pulse detection
• Low-temperature drift amplifier
• High-resolution A/D conversion
• Microprocessor digital signal processing

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Display Functions

• LCD digital display
• Instantaneous flow rate
• Total accumulated flow
• Operating status indication

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Control Functions

• Remote monitoring
• Remote control
• Flow alarm setting
• Output configuration
• Working condition calibration
• Multiple measurement units

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Output Functions

• Switch output
• PNP output
• NPN output
• Normally Open (NO)
• Normally Closed (NC)

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Wiring Diagram

Product Advantages

The Column Electronic Flow Sensor combines high-precision turbine measurement, intelligent digital processing, and flexible control functions into one compact device. With local LCD display, remote monitoring capability, configurable switch outputs, and simple installation, it provides a reliable solution for industrial flow measurement and automation systems.

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Typical Applications

The sensor is commonly installed in:

• Water treatment systems
• Pump control systems
• Hydraulic equipment
• Lubrication systems
• Chemical dosing systems
• Cooling circulation systems
• Industrial machinery
• Process automation equipment
• Petroleum process pipelines
• Municipal water distribution systems

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Frequently Asked Questions (FAQ)

How does the Column Electronic Flow Sensor measure flow?

The sensor uses a turbine flow measurement principle. Fluid flow rotates the turbine rotor, generating pulse signals that are digitally processed by the built-in microprocessor to calculate the instantaneous and accumulated flow values.

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What information is displayed on the LCD?

The LCD displays:

• Instantaneous flow rate
• Total accumulated flow

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Can the sensor perform remote monitoring?

Yes. The processed digital signal supports remote flow monitoring and control, making it suitable for industrial automation systems.

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What switch output options are available?

The sensor supports:

• PNP output
• NPN output
• Normally Open (NO)
• Normally Closed (NC)

Users can configure the output mode according to application requirements.

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Is on-site calibration supported?

Yes. The sensor allows random on-site calibration under actual working conditions, improving measurement flexibility and accuracy.

Why Choose the Column Electronic Flow Sensor?

The Column Electronic Flow Sensor combines high-precision turbine flow measurement, digital signal processing, LCD real-time display, remote monitoring, and flexible PNP/NPN switching outputs into a compact, intelligent flow control solution. Designed for industrial automation, hydraulic systems, water treatment, petroleum, chemical processing, and machinery applications, it delivers accurate flow measurement, simple configuration, and reliable long-term performance.