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The member of the KROHNE OPTIBAR family is unparalleled when it comes to versatility and robustness. The completely newly developed piezoresistive differential pressure measuring device provides not only the exact differential pressure under any operating conditions but also

simultaneously measures the static pressure in the process line.

The extremely compact measuring cell has a robust and precise response to temperature changes and with step response times of just 125 ms, it provides enough measurements for reliable and stable process control.

Total 3D linearisation

For a robust and accurate differential pressure measurement, even under changing process conditions, each OPTIBAR DP differential pressure transmitter is linearised in 3 dimensions during calibration: differential pressure, ambient temperature and static pressure are taken into account in combination. Since the full specified operating range is covered, an outmost stable and accurate measurement under all process conditions is guaranteed.

Highlights

• Outstanding temperature stability even under harsh conditions

• Very good repeatability and long-term stability of the measuring signal

• Extremely quick step response times < 125 ms

• Combined DP, SP and T measurements for maximum process reliability

• Measuring ranges down to 10 mbar / 0.145 psi even without electronic spreading

• Turn down up to 100:1, higher on request

• Universal modularity of the entire OPTIBAR process series

• Display and adjustment module with optional bluetooth communication can be used for

remote measured value indication, adjustments and diagnostics

• Quick start-up for all applications

• Extensive diagnostic and parameterisation functions on the display module or the userfriendly and free DTM

Applications

• Pressure monitoring of filters and pumps with overload protection of up to 400 bar / 5800 psi

• Level measurement of liquids in open and pressurised vessels

• Flow measurement of gases, vapours and liquids with differential pressure transmitters

• Measurement of density and interface of liquids in tanks