OPTICHECK technology built-in

State-of-the-art measuring devices combine robust measuring principles and powerful electronics to produce a wide range of readings and device-specific data. OPTICHECK technology built in leverages the features of the devices to translate their available comprehensive measuring system data into sophisticated diagnostics information for plant personnel. It goes beyond extensive device diagnostics, self-tests and on-site verification. With measurement principle-specific application diagnostics, this technology also allows in-depth insights into the process and thus opens up far-reaching possibilities for device monitoring, condition-based maintenance and optimisation of measurement technology and systems.

OPTICHECK technology built-in

State-of-the-art measuring devices combine robust measuring principles and powerful electronics to produce a wide range of readings and device-specific data. OPTICHECK technology built in leverages the features of the devices to translate their available comprehensive measuring system data into sophisticated diagnostics information for plant personnel. It goes beyond extensive device diagnostics, self-tests and on-site verification. With measurement principle-specific application diagnostics, this technology also allows in-depth insights into the process and thus opens up far-reaching possibilities for device monitoring, condition-based maintenance and optimisation of measurement technology and systems.

The functional status of a measuring device can have a direct influence on the reliability of a measurement and therefore on process stability and system availability. The comprehensive device diagnostics from OPTICHECK technology built-in enable a measuring device to reliably detect typical errors or potential damage within the meter’s sensor or signal converter. OPTICHECK technology built-in produces a continuously repeating self-diagnosis of the measuring device resulting in reliable self-monitoring of the meter's health for every moment it is in operation.

Continuously repeating self-diagnosis

Every measuring device with OPTICHECK technology built-in is able to provide a reliable statement about the correct function of the device at any time. The technology uses continuously executed test routines to cyclically compare the current device condition against its baseline performance at time of delivery. In addition to the general monitoring of output signals, power supply and circuits, this includes numerous device-specific function tests.

  • Sensor and excitation coils short-circuit detection

  • Detection of mechanical damage to the primary measuring tube housing

  • Monitoring of measuring tube wear

    • e.g. corrosion and abrasion monitoring of electrodes

  • Monitoring the measurement accuracy

    • e.g. by feeding in test signals for continuous testing of the electronics

  • Continuous monitoring of integrated temperature and pressure measurements

  • Software and hardware errors detection

    • e.g. disturbed piezo signal

  • Plausibility check of the measured value

    • e.g. via continuous monitoring of the measuring range limits

  • Continuous evaluation of the signal quality

    • e.g. to identify unfavourable installation conditions

OPTICHECK technology built-in and SIL

OPTICHECK technology built-in offers particular added value during automated partial proof testing in safety-related applications. In the partial proof test, it enables a complete self-test to be carried out, which allows a proof test coverage (PTC) of up to 80% and a failure detection rate of approx. 95%, ensuring the safe operation of any safety-relevant function. This can also extend the interval between full tests under certain conditions.

On-site verification with report generation at the touch of a button

For the operator, the permanent self-monitoring is translated into standardised status signals in accordance with NAMUR NE 107. These status signals provide clear and comprehensible descriptions of the current device situation and provide a quick overview of error events. The error information can be immediately signalled to the control room via a defined error current or via error signals. This provides operators with condition-based information about the measuring devices in real time. Appropriate measures can be derived from this. All data is also logged in the measuring device and, in case of doubt, is available for a more in-depth root cause analysis.

The continuously running self-diagnosis of OPTICHECK technology built-in also forms the basis for rapid on-site verification of the measuring devices. Regardless of whether the status of software and hardware components is to be routinely checked and documented or carried out as part of troubleshooting, detailed verification reports on the health status of the instrumentation can be generated directly on site or in the control room. The measuring devices can be checked without interrupting the process and are ready for reporting at the touch of a button. Depending on the device type, this verification option can be performed wirelessly via Bluetooth using the OPTICHECK Mobile app on site at the field device or from the control room using the OPTICHECK DTM.

Built-in application diagnostics

In addition to comprehensive device diagnostics, OPTICHECK technology built-in stands for a wide range of device-specific application diagnostics that provide a deep insight into your own processes and systems. This measurement and device data is always available to operators to optimise and control processes. They also provide information that can be used for predictive system maintenance. OPTICHECK technology built-in utilises the device-specific data in numerous KROHNE measuring devices for meaningful application diagnostics.

  • Gas bubble detection in liquids

    • e.g. for process control in applications with desired or undesired air inclusions

  • Detection of deposits in the measuring tube

    • e.g. for the measurement of fatty media

  • Conductivity measurement

    • e.g. for monitoring the quality of measured media (drinking water, etc.)

  • Process and ambient temperature changes

    • e.g. to detect changes in the medium and temperature peaks outside the specification

  • Detection of process pressure changes

    • e.g. to detect burner soot build-up in ovens for the purpose of planning furnace overhauls

  • Transition phase detection for steam, saturated steam, condensate

    • e.g. for optimised control of steam circuits

  • Empty tube detection

    • e.g. as an indicator of a faulty supply or defective pumps

Advantages of OPTICHECK technology built-in at a glance:

  • Provides a variety of integrated, sophisticated diagnostics for the reliable detection of typical damage to sensors and signal converters/transmitters

  • Continuously checks for hardware and software errors

  • Self-diagnoses the health status of measuring devices without process interruption

  • Produces meaningful diagnostic data for regular verification of field devices or for verification as part of a quick troubleshooting measure, directly on site or form the control room

  • Makes a verification report available at the touch of a button without the need to remove the device

  • Forms basis for predictive maintenance: recognises wear and maintenance requirements

  • Offers numerous application diagnostics for improved process reliability and system availability

  • Enables a safe failure fraction (SFF) of 94-96% and a partial proof test coverage of 80% in SIL applications

  • Can log and display trends over time for early detection of failures, such as electrode fouling, and provides detailed information for maintenance engineers to take effective preventative action

Produits associés

OPTIFLUX 4400

Electromagnetic flowmeter for safety instrumented systems (SIS) and high-accuracy requirements

  • Certified for safety applications up to SIL 2/3, with automated partial proof test capability for extended proof test intervals
  • Best-in-class diagnostic test interval incl. fault response time of only 2 minutes
  • SIL 2/3 up to DN600 / 24"; non-SIL up to DN2000 / 80" (larger on request)
  • Pulse, frequency, status, 4…20 mA, HART®7

OPTIMASS 6400

Coriolis mass flowmeter for advanced process applications

  • High accuracy (±0.05% flat), for cryogenic to high temperature media (-200…+400°C / -328…+752°F); maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • SIL 2/3; CT: OIML R117, R137, MI-005, MI-002; API, AGA; hygienic certifications
  • Flange: DN10…300 / ½…12", max. PN 160 / ASME Cl 1500
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

OPTIMASS 2400

Coriolis mass flowmeter for highest capacity bulk measurement

  • For gases and liquids up to 4,600 t/h; maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • CT: OIML R117, MI-005, MI-002; API and AGA compliant
  • Flange: DN100…400 / 4…16", max. PN160 / ASME Cl 1500
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

OPTIMASS 7400

Coriolis mass flowmeter for advanced process applications

  • High accuracy (±0.1%), for viscous, aggressive or shear-sensitive media; maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • CT: OIML R117, MI-005; API; hygienic certifications
  • Flange: DN10…100 / ½…4", max. PN100 / ASME Cl 600; others
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

OPTIMASS 1400

Coriolis mass flowmeter for universal applications and process control

  • Mass, density and volume flow of gases and liquids; maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • Also certified for hygienic use
  • Flange: DN15…100 / ½…4", max. PN100 / ASME Cl 600; many hygienic fittings
  • 3 x 4…20 mA, HART®7, FF, Profibus-PA/DP, Modbus, PROFINET, EtherNet/IP™, Bluetooth®

OPTIMASS 3400

Coriolis mass flowmeter for low flow and dosing applications

  • High accuracy (±0.1%) for gases and liquids >0.3 kg/h / 0.01 lb/min; maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • Standard pressure rating up to 300 bar / 4351 psi
  • Flange: DN15 / 1/2"; also thread and clamp connections
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

OPTISWIRL 4200

Vortex flowmeter for utility applications and energy management systems

  • For liquids, (wet) gases, saturated and superheated steam (+240°C / +464°F)
  • Integrated P+T measurement: direct output of mass, nominal flow, energy, gross/net heat
  • Flange: DN15…300 / ½…12"; wafer version: max. DN100 / 4"
  • 2-wire, 4…20 mA, HART®, FF, Profibus-PA

OPTICHECK DTM

DTM for advanced device verification and commissioning

  • Usable with any FDT frame application from the control room or on site
  • Advanced verification (level 0,1) without process interruption
  • Detailed reports for proof test documentation of safety loops acc. to IEC 61508/61511, and for quality management systems (ISO 9001)

OPTICHECK Mobile

Mobile app for wireless device commissioning, verification and monitoring

  • Wireless commissioning and device parametrisation via secure Bluetooth connection
  • Verification without measurement interruption
  • Monitoring of meter performance and application parameters
  • Free download for iOS and Android
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