The OPTIBAR FC 1000 is a compact, high performance flow computer for volumetric flow calculation and heat quantity measurement of liquids and gases, including saturated steam and superheated steam. Commissioning and operation of the flow computer is quick and easy thanks to its user-friendly operating philosophy. The full-screen, multi-colour touch screen offers extensive options for customising the display of process readings to suit any customer applications. Communication and measured data transmission via HART® protocol as well as the option for split-range operation allows very accurate differential pressure (DP) flow measurements especially at low working pressures. This makes the device an ideal enhancement for gas measurements with averaging pitot tubes as well as flow nozzle meters or Venturi meters with high measuring dynamics.
Its compliance with IAPWS-97 for water and steam calculations with condensate detection, makes this flow computer particularly useful for differential pressure (DP) flow measurement of saturated and super-heated steam. In addition, a variety of other calculation methods are available for the correction calculation of gases and liquids. For highly accurate measurements, the KROHNE flow computer provides correction of linearity errors of DP flow elements in real-time and in accordance with ISO 5167 requirements.
Specifications
Depending on selected device configuration
General information
| Product type | Flow component/auxiliary equipment |
| Product family name | OPTIBAR |
| Product positioning | For process control of liquids, gases and steam |
| Product variants |
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Approvals/Standards
| Ingress protection | IP65 |
Calculation methods
| Flow meter | Special calculation algorithms for differential pressure instruments, ultrasonic flowmeters, volumetric instruments and mass flow sensors |
| Heat carrier oils | Parameterisation based on individual properties |
| Other fluids | Constant characteristics |
| Technical gases | Ideal gas law, Redlich-Kwong, Redlich-Kwong-Soave, Peng-Robinson, AGA-8 DC/GC, SGERG 88, AGA-NX19 |
| Water and steam | IAPWS-97 |
Input signals
| Temperature | 2 × Pt100 2 × 0/4 … 20 mA |
| Absolute pressure | 1 × 0/4 … 20 mA |
| Flow | 2 x 0/4 … 20 mA (with FSK-Modem for HART® devices) 2 × Frequency |
Communication
| Analogue outputs | 0…20 mA, 4…20 mA |
| Discrete outputs | 1 x mechanical relay, 2 x electronic relay |
| Digital outputs | HART®, Modbus RTU, USB, Modbus TCP, M-Bus, Profibus-DP (with protocol converter), PROFINET (with protocol converter) |