krohne OPTIFLEX 7200
- Guided radar (TDR) technology
- Level and interface measurement
- -50…+250°C; -1…100 barg
- Accuracy: ±2 mm (0.08″)
Did you like this product? Add to favorites now and follow the product.
(+86) 132-6243-8118 Start Live Chat
Description
Unveiling the Precision of OPTIFLEX 7200
The OPTIFLEX 7200, a sophisticated 2-wire guided radar level transmitter, stands as a testament to precision engineering in industrial measurement. At its core, this device employs Time Domain Reflectometry (TDR) technology, a principle akin to radar but guided along a physical probe. By transmitting a low-power microwave pulse down the probe, the instrument can accurately measure the time it takes for the pulse to reflect off the liquid surface. This time-of-flight measurement is then converted into an exact level reading. This fundamental approach grants the OPTIFLEX 7200 a unique advantage, allowing it to perform continuous level and interface measurement with exceptional reliability. Unlike other technologies, the TDR method is largely unaffected by changes in pressure, temperature, or the dielectric constant of the medium, making it an ideal choice for the most challenging of applications. This robust technology ensures that the OPTIFLEX 7200 provides consistent and accurate data, which is crucial for safety, efficiency, and process control in various industries.
The Global Standard in Liquid Measurement
In the realm of industrial instrumentation, the OPTIFLEX 7200 has established itself as a global benchmark for accuracy and durability. Its versatile design, featuring an extensive choice of probes, allows it to be configured for a wide array of demanding liquid applications. Whether dealing with corrosive acids, volatile hydrocarbons, or viscous slop oil, the OPTIFLEX 7200 offers a solution. The availability of specialized materials such as Monel®, tantalum, and titanium ensures the device can withstand harsh process conditions without compromising performance or longevity. This adaptability is further enhanced by its ability to measure a vast range, from 0.3 to 60 meters (1 to 197 feet), making it suitable for both small process vessels and large storage tanks. The OPTIFLEX 7200 is not merely a piece of equipment; it’s a strategic investment in reliable measurement, providing operators with the confidence to optimize their processes, reduce waste, and ensure the integrity of their operations. Its reputation for excellence is built on years of proven performance in the field, making it the go-to choice for engineers and plant managers worldwide.
A Tailored Solution for Every Industry
The OPTIFLEX 7200 isn’t a one-size-fits-all device; rather, it is a highly customizable solution designed to meet the specific needs of diverse industries. In the chemical industry, for example, where corrosive and aggressive media are common, the OPTIFLEX 7200’s probes made of robust materials and its ceramic process seal system are invaluable. This ensures long-term reliability and minimal maintenance, even in the most hostile environments. For the oil and gas sector, the ability to perform reversed interface measurement is a critical feature, allowing for the precise monitoring of two immiscible liquids, such as oil and water. This is essential for preventing product contamination and optimizing separation processes. Additionally, the device’s compatibility with various converter and electronic versions, including compact and remote configurations, provides installation flexibility, enabling it to fit seamlessly into any existing infrastructure. This adaptability, combined with its advanced features, makes the OPTIFLEX 7200 an indispensable tool for engineers looking to enhance their measurement capabilities.
Engineered for Unprecedented Performance
The design philosophy behind the OPTIFLEX 7200 is rooted in delivering unparalleled performance under the most challenging conditions. The device can operate within a wide temperature range of -50 to +250°C (-58 to +482°F) and handle pressures up to 100 barg (1450 psig). This impressive operational envelope makes it suitable for a broad spectrum of applications, from cryogenic liquids to high-temperature reactors. The OPTIFLEX 7200 also boasts advanced features like its patented Dynamic Gas-phase Compensation (DGC), which, in a future enhancement, will ensure even greater accuracy by accounting for variations in the gas above the liquid. The device’s stainless steel housing and optional weather protection further fortify it against corrosive environments and extreme weather, ensuring its longevity and reliability. With a 3-year warranty and compliance with international standards such as NACE and SIL 2/3, the OPTIFLEX 7200 is a symbol of quality and safety.
The Heart of Modern Process Control
Beyond its technical specifications, the OPTIFLEX 7200 plays a pivotal role in modern process control systems. Its 4-20 mA output and HART® communication capabilities allow for seamless integration into existing control architectures. This enables real-time monitoring and data analysis, which are essential for optimizing production processes, ensuring product quality, and improving safety. The device’s diagnostic functions, compliant with NAMUR NE 107, provide detailed information about its status and any potential issues, allowing for proactive maintenance and minimizing downtime. The real-time clock for event logging further enhances its utility, providing a chronological record of critical events for troubleshooting and compliance purposes. By delivering accurate, real-time data, the OPTIFLEX 7200 empowers operators to make informed decisions, ensuring their processes run smoothly and efficiently. This level of insight is invaluable for a competitive advantage in today’s industrial landscape.
Specifications
Specifications
Depending on selected device configuration
General information
| Product type | Level transmitter |
| Product family name | OPTIFLEX |
| Product positioning | For advanced liquid applications |
| Measurement variables | Distance, Level, Mass, Volume, Dielectric constant |
| Measurement principle | Guided radar (TDR) |
| Level measurement type | Continuous measurement |
| Contact to measured medium | Yes |
| Interface measurement | Yes |
| Measured media | Liquids, Liquid/liquid interface |
| Measuring range (liquids) | 0.3…60 m/ 0.98…196.85 ft |
| Probe length | 0.3…60 m 0.98…196.85 ft |
| Probe diameter |
|
| Measuring point | Pressurised tank, Stilling well, Bypass |
Operating conditions
| Process pressure | -1… 100 barg/ -14.5… 1450 psig |
| Process temperature | -50…+250°C/ -58…+482°F |
Materials
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375, Kalrez® 7075, Polytetrafluoroethylene (PTFE), Ceramic |
| Wetted parts | Austenitic stainless steel (1.4404/316L), Austenitic alloy (2.4602/Alloy 22), Polytetrafluoroethylene (PTFE), Ceramic |
Process connections
| Flange connections | EN (1092-1): DN25…200/ ASME (B 16.5): 1…8”/ JIS (B 2220): 40…200A |
| Thread connections | Male: G¾, G1, G1½ ¾ NPT, 1 NPT, 1½ NPT |
Approvals/Standards
| Certificates/Approvals Others | NACE |
| Certificates/Approvals Ex | ATEX, cQPSus, IECEx, NEPSI, INMETRO |
| Certificates/Approvals Safety | SIL 2/3 |
| Ingress protection | IP66/68, NEMA4X/6P |
| NAMUR compliance | NE 107, NE 21, NE 43, NE 53 |
Communication
| Analogue outputs | 4…20 mA |
| Discrete outputs | Relay |
| Digital outputs | HART® |
Accuracy
| Accuracy (liquids) | ±2 mm/ ±0.08 in |











