F127 Safe area / Intrinsically safe – Differential Flow Computer for liquids
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.
Datasheet
Measure. Monitor. Repeat.
For better insights, better decision-making and better process performance.
Key Features & Benefits
- 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 and additional accumulated total.
- 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.
- LED backlight.
- Intrinsically safe according ATEX and IECEx.
Typical Applications
- Net fuel consumption calculation for diesel engines on board of ships or locomotives, generators or burners, corrected for the influence of thermal product expansion.
- The F-Series is your first and best choice for field mount indicators in safe and hazardous area applications. Especially in harsh weather conditions like rain, snow, sandy deserts, salty atmospheres and temperatures between -40°C up to +70°C (-40°F up to 158°F).
Advantages
- Robust aluminum or stainless steel 316L field enclosure (IP65, IP67 / NEMA Type4X) .
It is so rugged, a truck can even stand on it! - Intrinsically Safe available - ATEX and IECEx approval for gas and dust applications.
- Familiar easy operation with the Fluidwell "Know one, know them all" configuration structure, saving time, cost and aggravation.
- Very diverse mounting possibilities: walls, pipes, panels or directly onto outdoor sensors.
| Signal Inputs | |
|---|---|
| Flowmeter Inputs | Pulse-type inputs: Reed switch, NAMUR, NPN/PNP pulse, sine wave (coil), active pulse signal. Different pulse signal types are allowed for input A and B. |
| Temperature Inputs | PT100 – 2-wire or 3-wire PRTD sensor (0)4 – 20 mA |
| Signal Outputs | |
| Pulse Outputs | Function: One scaled pulse output according to differential or summed accumulated total (e.g. one pulse every 3.25 gallons) and one configurable pulse for negative or decreasing total. Max. frequency: 500 Hz Pulse length: Adjustable from 0.001 s to 9.999 s Type: Two passive NPN transistors, active PNP transistors or isolated electro-mechanical relays |
| Alarm Outputs | None |
| Analog Outputs | Function: Re-transmission of compensated differential flow rate (consumption), scalable to any range (e.g. 200 L/min to 1200 L/min). Type: One passive isolated, floating or loop-powered 4–20 mA output or one active (0)4–20 mA or 0–10 V DC output |
| Supply | |
| Power Supply | Long-life lithium battery 4–20 mA output loop-powered 8–24 V AC/DC 115–230 V AC Basic: 8–30 V DC |
| Sensor Supply | 3.2 V, 8.2 V, 12 V, 24 V DC |
| Hazardous Area | |
| Intrinsically Safe | ATEX: Gas: II 1 G Ex ia IIB/IIC T4 Ga Dust: II 1 D Ex ia IIIC T200 / 100 °C Da IECEx: |
| Explosion Proof | ATEX / IECEx: Gas: II 2 G Ex db IIB + H₂ T5 Gb Dust: II 2 D Ex tb IIIC T80 °C Db |
| Communication | |
| Communication | All process data and settings can be read and modified via the communication interface. Protocol: Modbus RTU Interface: RS232 / RS485 (2-wire or 4-wire) / TTL HART communication available with the F018 Flow Rate Monitor / Totalizer |
Why Choose Process Networks?
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Most customers stay with us for years because we stay with them providing ongoing maintenance, calibration and on-site service.
Proven Field Experience
Thousands of instruments installed and tens of thousands points monitored daily on systems we support.
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Office
Process Networks Ltd,
Unit K20 Drinan Enterprise Centre,
Swords, Co. Dublin, K67 NN59
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(01) 211 8414
info@processnetworks.ie