vpa1mna-1 – photo,ss,polys,npn,no+nc,plug

Why Choose the Carlo Gavazzi VPA1MNA-1 Photoelectric Level Sensor?

The Carlo Gavazzi VPA1MNA-1 is a robust photoelectric liquid level sensor designed for point-level detection in tanks and industrial process equipment. It uses modulated infrared light and an integrated amplifier to detect the presence of liquid without requiring a conventional mechanical float.

Designed for demanding liquid-handling applications, the VPA1MNA-1 combines an AISI 303 stainless-steel housing with a chemically resistant polysulphone sensing tip. Its NPN change-over output (NO+NC) provides both normally open and normally closed switching functions, while the 10–40 V DC supply range supports straightforward integration with industrial control systems.

The VPA1MNA-1 uses an M12 connector rather than a permanently attached cable, allowing compatible connection leads to be selected to suit the installation. With IP67 protection, a maximum load current below 200 mA and pressure capability up to 10 bar at +60 °C, it provides a durable solution for industrial liquid-level monitoring.

Key Advantages

• Purpose-designed photoelectric liquid level sensor.
• NPN NO+NC change-over output provides flexible switching integration.
• Wide 10–40 V DC operating supply range.
• Modulated infrared sensing without a conventional mechanical float.
• Durable AISI 303 stainless-steel housing.
• Chemically resistant polysulphone sensing tip.
• M12 connector simplifies installation and sensor replacement.
• IP67 protection for demanding industrial environments.

Key Features

• Carlo Gavazzi VP series optical level sensor.
• Integrated transmitter, receiver and amplifier.
• Modulated infrared light sensing technology.
• NPN change-over (NO+NC) transistor output.
• 10–40 V DC rated operating voltage.
• 30 Hz operating frequency.
• M12 connector electrical connection.
• Cylindrical threaded-barrel housing.
• Stainless-steel and polysulphone construction.
• High chemical resistance.
• Short-circuit, reverse-polarity and transient protection.
• IP67 degree of protection.

Robust Optical Liquid Level Detection

The Carlo Gavazzi VPA1MNA-1 uses separate transmitting and receiving elements sealed behind its optical sensing tip. When the surrounding medium changes from air to liquid, the behaviour of the infrared light changes and the integrated electronics switch the NPN NO+NC output, providing a clear point-level signal to the connected control system.

The liquid and electrical circuits remain isolated from one another, while the stainless-steel body and chemically resistant polysulphone tip support direct mounting through a tank wall. The combination of modulated optical sensing, M12 connectivity and dual NO/NC output functionality makes the VPA1MNA-1 particularly useful in automated filling, emptying and level-alarm systems.

Typical Applications

• Industrial tank and container level detection.
• High- and low-level liquid monitoring.
• Automatic filling and emptying systems.
• Pump and valve control applications.
• Process and chemical handling equipment.
• Liquid storage and transfer systems.
• Packaging and production machinery.
• OEM industrial automation equipment.