Lab Manager | Run Your Lab Like a Business

KROHNE Introduces New Additions to OPTIFLEX Level Transmitter Series

Four new additions to the OPTIFLEX series of guided radar level transmitters are now available

by KROHNE, Inc.
Register for free to listen to this article
Listen with Speechify

BEVERLY, MA — KROHNE, a world-leading manufacturer and supplier of solutions in industrial process instrumentation, introduces four new additions to the OPTIFLEX series of guided radar (TDR) level transmitters. Each device is designed for specific areas of application in the chemical, oil & gas, power, metals, minerals & mining, pharmaceutical, or food & beverage industries industries.

KROHNE OPTIFLEX Level Transmitter SeriesKROHNE's OPTIFLEX Level Transmitter SeriesCredit: KROHNEOPTIFLEX 3200 is the first choice for applications with hygienic requirements in the pharmaceutical and food & beverage industries. It features a CIP/SIP-suitable hygienic design for liquid level and interface measurement in small vessels with process conditions up to +150°C/ +302°F and 40 barg/ 580 psig. Insensitive to steam, foam, and condensation, the device offers a measuring range 0.6…4 m/ 1.97…13.12 ft with an accuracy of ±2 mm/ ±0.08.¨

OPTIFLEX 6200 is designed for solids from granulates to powders in the chemical, agri-food, metals, as well as the minerals & mining industries. It can be used for level measurement in silos up to 40 m/ 131 ft with a measuring accuracy of ±2 mm/ ±0.08". Designed to withstand high traction loads and process conditions up to +200°C/ +392°F; 40 barg/ 580 psig, it is insensitive to dusty atmosphere or deposits on the probe.

Get training in Lab Crisis Preparation and earn CEUs.One of over 25 IACET-accredited courses in the Academy.
Lab Crisis Preparation Course

OPTIFLEX 7200 aims at the chemical and oil & gas industries for level and interface measurement of liquids in process and storage applications with ±2 mm/ ±0.08¨ accuracy. It offers an extensive choice of probes for measuring distances up 60 m/ 197 ft and dielectric constants down to 1.3 (TBF 1.1), and can be used with aggressive media in process conditions up to +250°C/ +482°F and 100 barg/ 1450 psig.

OPTIFLEX 8200 has similar features and offers a double ceramic process seal system for liquids up to +315°C/ +599°F and 320 barg/ 4641 psig. Both devices offer Dynamic Gas-phase Compensation (DGC) (in preparation) with the coaxial probes, ensuring accurate measurement without increased blocking distance in applications where the composition of the gas above the liquid can change suddenly, e.g. in steam boilers.

All four new TDR transmitters feature 2-wire 4…20 mA HART 7 communication with an optional second output (current or relay) and a real-time clock for event logging. They have been developed SIL 2/3-compliant according to IEC 61508 for safety-related systems and come with various Ex approvals. Common features also include a quick coupling system as well as compact and remote converter versions (up to 100 m/ 328 ft) made of aluminum or stainless steel. All devices are rated IP66, IP68, and NEMA 4X/6P.

Together with the cost-effective OPTIFLEX 1100 for basic liquid applications and the POWERFLEX 2200 for liquids in the nuclear industry, they represent the KROHNE guided radar (TDR) level transmitter portfolio.

HART is a registered trademark of FieldComm Group. 


KROHNE is a worldwide technological leader in the development, manufacture, and distribution of accurate, reliable, and cost-effective measuring instruments for the process industries. KROHNE focuses on forming partnerships with its customers to provide them with the most reliable and innovative solutions available in the marketplace. For more information about KROHNE’s complete line of measuring instrumentation for the process industries, contact KROHNE at 1-800-FLOWING (978-535-6060 in MA); fax: (978) 535-1720, email:, Twitter, Facebook, or visit