krohne OPTISWITCH 3100
- Vibration principle level switch
- Point level detection solids
- -50 to +250°C
- Unaffected by product properties
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Description
A Compact Solution for Solids Detection
The OPTISWITCH 3100 is a compact vibration level switch engineered for the reliable point level detection of solids. This device operates on a straightforward yet highly effective principle: a tuning fork probe vibrates at a specific resonance frequency. When a solid material, such as powder or fine-grained bulk solids, comes into contact with the probe, the vibration is dampened. The internal electronics detect this change and trigger a switching signal. This simple, elegant mechanism ensures that the OPTISWITCH 3100 is a dependable solution for a wide range of applications. Its compact size and robust design allow for easy installation in various settings, from small hoppers to large silos. The device is a testament to the fact that effective engineering does not always require complexity, providing a reliable and straightforward method for level detection that is easy to implement and maintain.
Mastering the Most Challenging Conditions
The OPTISWITCH 3100 is designed to thrive in environments that would prove difficult for other sensors. It is particularly effective for point level detection of powders and fine-grained bulk solids, including materials with a very low density, such as aerosols. This capability to measure materials with a density of less than 8 g/l (<0.49 lb/ft³) is a standout feature, making it suitable for specialized applications where other technologies would fail. The device operates across a broad temperature range of -50 to +250°C (-58 to +482°F) and can handle pressures up to 16 barg (232 psig), allowing it to perform reliably in a wide variety of industrial processes. Its abrasion-resistant and highly robust design ensures longevity and consistent performance, even when dealing with abrasive materials. This durability is critical for industries like cement or mining, where the media can cause significant wear and tear on equipment.
Engineered for Unwavering Reliability
Reliability is at the core of the OPTISWITCH 3100’s design. The device’s operation is unaffected by changes of product properties, such as variations in density, moisture content, or particle size. This makes it a truly maintenance-free solution, as it does not require recalibration or adjustment based on changes in the material being measured. This stability is a significant advantage over other technologies that can be affected by product variations, leading to false readings or requiring frequent manual intervention. The OPTISWITCH 3100’s high level of dependability is also reflected in its SIL 2 certification, which makes it suitable for use in safety-related applications. This provides an added layer of assurance for critical processes where a reliable switching signal is essential for safety and operational integrity.
A Flexible Design for Any Installation
The OPTISWITCH 3100 is built with a flexible design to accommodate a variety of installation needs. Its compact housing makes it ideal for use in space-constrained applications. For situations where the measurement point is difficult to access, a remote housing version is available, allowing the electronics to be installed up to 25 meters (82 feet) away from the probe. This is particularly useful in applications with high temperatures, vibrations, or other conditions that might be harmful to the electronic components. The device offers multiple process connections, including G1 ½ thread, NPT, and Tri-Clamp®, ensuring compatibility with a wide range of industrial tanks and vessels. This flexibility simplifies the integration process, allowing the OPTISWITCH 3100 to be seamlessly incorporated into new or existing systems.
Robust Construction for a Long Service Life
The OPTISWITCH 3100 is constructed from high-quality, durable materials designed for longevity. The wetted parts are made from Austenitic stainless steel (1.4404/316L), which is known for its excellent corrosion resistance. This makes the device suitable for use with a variety of materials, including corrosive chemicals and food products. The device’s Ingress Protection (IP) rating of IP66/67 and NEMA 4/4X/6 means it is fully protected against dust and water ingress, making it suitable for both indoor and outdoor applications, including those that require regular washdowns. This rugged construction, combined with its simple, maintenance-free operation, ensures that the OPTISWITCH 3100 provides a reliable and long-lasting solution, even in the most demanding industrial environments.
The TPT24 Store: Your Trusted Source
When selecting a critical instrument like the OPTISWITCH 3100, it is essential to purchase from a trusted and reliable source. The tpt24 online store is the world’s leading online retailer for this product, offering an unmatched commitment to authenticity and quality. We understand that your operations depend on the reliability of your equipment, which is why we provide a guarantee of authenticity and quality with every purchase. Our global logistics network ensures that no matter where you are located, your order will be delivered promptly and in perfect condition. The tpt24 online store is not just a vendor; we are a partner dedicated to your success, providing you with the peace of mind that comes from using genuine, high-quality instruments.
A Smart Investment in Point Level Detection
The OPTISWITCH 3100 is an exemplary solution for point level detection in a wide range of solid applications. Its compact size, robust design, and simple yet effective vibrating principle make it a reliable, maintenance-free, and cost-effective choice. Whether you need to detect fine powders in a silo or monitor solids in a water tank, the OPTISWITCH 3100 provides the dependability and accuracy required to optimize your processes and ensure safety. By choosing to purchase from the tpt24 online store, you are not only acquiring a top-quality product but also a commitment to authenticity and customer satisfaction. The OPTISWITCH 3100 is the ideal choice for any operation that requires a simple, reliable, and durable point level switch.
Specifications
Specifications
Depending on selected device configuration
General information
| Product type | Level switch |
| Product family name | OPTISWITCH |
| Product positioning | For solid applications |
| Product variants | OPTISWITCH 3100 C: Compact housing |
| Measurement variables | Level |
| Measurement principle | Vibrating |
| Level measurement type | Point level detection |
| Contact to measured medium | Yes |
| Interface measurement | No |
| Redundancy | No |
| Measured media | Solids, Bulk solids, Granulates, Powders |
| Probe length | 220 mm / 8.7 in |
| Measuring point | Silo |
Operating conditions
| Process pressure | -1…16 barg/ -14.5…232 psig |
| Process temperature | -50…+250°C/ -58…+482°F |
Materials
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375, PFA |
| Wetted parts | Austenitic stainless steel (1.4404/316L) |
Process connections
| Flange connections | EN (1092-1): DN50…200 ASME (B 16.5): 2…4 |
| Thread connections | Male: G1 ½ 1 ½ NPT |
| Hygienic connections | Tri-Clamp®: 2 |
Approvals/Standards
| Certificates/Approvals Ex | ATEX, EAC Ex, FM, CSA |
| Certificates/Approvals Safety | SIL 2 |
| Ingress protection | IP66/67, NEMA4/4X/6 |
Communication
| Discrete outputs | 2-wire (8/16 mA), Contactless, NAMUR, Relay, Transistor |










