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The SICK LBV301 is a robust level switch designed for reliable detection of liquid levels in industrial processes. Utilizing a rod probe technology, it provides precise on/off switching when the fill material reaches a defined level. The sensor operates across a wide range of process conditions, including temperatures from –50 °C to +150 °C and pressures up to 16 bar. With an accuracy of ±10 mm at the sensor element, it ensures consistent performance in demanding environments. Its IP66 and IP67 enclosures offer excellent protection against dust and water ingress, making it ideal for both wet and harsh industrial settings. The LBV301 is built with stainless steel 316L and 318S materials to ensure durability and corrosion resistance, while its plastic housing provides structural integrity without compromising cost-efficiency.
The LBV301 employs a rod probe for level detection, enabling accurate switching when the fill material reaches a set point. It is designed to operate under process pressures ranging from –1 bar to 16 bar and can function in temperatures between –50 °C and +150 °C. The sensor delivers fast response times of either 500 ms or 100 ms depending on configuration, ensuring timely detection in dynamic processes. With a fill material density requirement of ≥0.02 g/cm³, it is suitable for most liquids including water-based and light oils. The double relay (DPDT) output allows for flexible control circuit integration, while the sensor’s construction with stainless steel 316L and 318S ensures long-term resistance to corrosion in aggressive environments.
The SICK LBV301 features a measurement type of switch with a rod probe. It operates within a supply voltage range of 20 V DC to 72 V DC or 20 V AC to 253 V AC, and meets VDE protection class 1 standards. The output signal is a double relay (DPDT), capable of delivering an output current greater than 10 µA, up to 3 A AC and 1 A DC. The sensor has a response time of either 500 ms or 100 ms depending on operational conditions. Its accuracy at the sensor element is ±10 mm. The process connection supports G 1, DIN 3852-A, PN 16 / 316L standards, and the housing material is plastic with a unit weight of 1.536 kilograms.
The LBV301 integrates seamlessly into industrial control systems via its double relay (DPDT) output, allowing direct connection to contact-based control circuits or PLCs. The M20 x 1.5 thread connection enables secure mounting on standard process vessels or tanks. No communication interface is provided, making it a simple, standalone switch solution suitable for basic level monitoring applications. The sensor’s output current exceeds 10 µA and remains below 3 A AC or 1 A DC, ensuring compatibility with most relay and control logic circuits. Its straightforward design requires minimal setup, reducing installation time and operational complexity.
The LBV301 is designed for operation in ambient temperatures ranging from –40 °C to +70 °C, making it suitable for cold storage or high-temperature industrial processes. It can be stored in environments from –40 °C to +80 °C without degradation of performance. The sensor is rated for process conditions up to 16 bar pressure and temperatures up to +150 °C, ensuring reliability under extreme conditions. Its IP66 and IP67 enclosures provide full protection against dust and water immersion, including submersion in water up to the IP67 rating. These environmental capabilities ensure consistent performance across a wide range of industrial applications.
The SICK LBV301 is ideal for use in tanks, silos, and process vessels where reliable level detection is required. It is particularly suited for monitoring liquids with densities ≥0.02 g/cm³, such as water, light oils, or chemical solutions. Common applications include wastewater treatment, chemical processing, food and beverage production, and pharmaceutical manufacturing. Its ability to operate in temperatures up to +150 °C and pressures up to 16 bar makes it suitable for high-temperature or pressurized systems. The sensor’s durability, fast response times, and robust construction ensure dependable performance in harsh industrial environments where maintenance is difficult or costly.
| Specification | Value |
|---|---|
| Response time | 500 ms 1) 100 ms 2) |
| Communication interface | - |
| Supply voltage | 20 V DC ... 72 V DC 20 V AC ... 253 V AC |
| Connection type | M20 x 1.5 |
| Housing material | Plastic |
| material | density |
| Accuracy | of sensor element |
| Ambient temperature | , storage |
| Process pressure | –1 bar ... 16 bar |
| value | G 1, DIN 3852-A, PN 16 / 316L |
| Process temperature | –50 °C ... +150 °C |
| Fill material density | ≥ 0.02 g/cm³ |
| Accuracy of sensor element | ± 10 mm |
| Output current | > 10 µA; < 3A AC, 1A DC |
| Enclosure rating | IP66 IP67 |
| Process connection | G 1, DIN 3852-A, PN 16 / 316L |
| Sensor material | Stainless steel 316L, 318S |
| Ambient operating temperature | –40 °C ... +70 °C |
| Ambient temperature, storage | –40 °C ... +80 °C |
| Unit weight | 1.536 Kilograms |
| Net unit weight | 1.536 Kilograms |
| VDE protection class | 1 |
| IP66 | IP67 |
| https | //www.sick.com/gb/en/catalog/products/process-sensors/level-sensors/lbv301/lbv311-xxagcrkmx/p/p255144 |
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