The F127 flow computer has been developed to calculate corrected differential liquid volume at normal conditions. This is calculated by measuring the uncorrected volumetric flow and actual line temperature in both the supply and return line. These signals are processed with the thermal expansion coefficient algorithm stored in the flow computer. The reference temperature can be defined as desired (e.g. 15°C, 20°C or 60°F). The usual difficulties encountered in such applications include: pulsating flows, very low consumption readings, vibration and high ambient temperatures. These are all well catered for in the design and operation of the F127.
The display shows the compensated consumption / flow rate, total, accumulated total and actual line temperatures. On-screen engineering units like Nm³ are easily configured from a comprehensive selection.
- Robust IP66, IP67 (NEMA4X) field enclosure. It is so rugged, you can even stand on it!
- Intrinsically Safe available - ATEX and IECEx approval for gas and dust applications.
- Programming can be done by your own crew, with the sensible menu-driven structure, saving cost and irritation. Know one, know them all!
- Very diverse mounting possibilities: walls, pipes, panels or directly onto outdoor sensors.
- Displays corrected consumption (flow rate), total and accumulated total.
- Supply line: displays actual temperature and corrected flow rate.
- Return line: displays actual temperature and corrected flow rate.
- Analog output signal reflecting the corrected consumption / flow rate.
- Displays total and flow rate simultaneously.
- Large digit selection for flow rate or total.
- Flow rate: seven 17mm (0.67") or 8mm (0.31") digits.
- Total - resettable: seven 17mm (0.67") digits.
- Accumulated total - not resettable: eleven 8mm (0.31") digits.
- Temperature: six 17mm (0.67") digits.
- Engineering units for flow rate, total and temperature on the display.
- Green LED backlight.
- Auto backup of settings and running totals in EEPROM memory.
- Ambient temperature: -40°C to +80°C (-40°F to 176°F).