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F-Series: F115

Field mount - Bi-directional flow rate indicator / totalizer

with analog, pulse signal and flow direction outputs

The F115 has been developed for applications where the direction of flow is an issue. It is required to offer two pulse signals from the flowmeter which are 90° or 270° degrees out of phase. In case of a reverse flow, the flow rate will be displayed as a negative value, the totalizers will count down and a switch output will be set. The pulse and analog outputs do reflect both flow directions.
On-screen engineering units are easily configured from a comprehensive selection.

Advantages
  • Robust IP66, IP67 (NEMA Type4X) 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.
Application overview F115

Features

  • Quadrature input to detect the direction of flow.
  • Displays positive and negative flow rate to indicate the flow direction.
  • Total and accumulated total count up and down accoording to the flow direction.
  • Analog and pulse outputs.
  • 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.
  • Separate engineering units for flow rate and total on the display.
  • LED backlight.
  • Auto backup of settings and running totals in EEPROM memory.
  • Ambient temperature: -40°C to +80°C (-40°F to 176°F).
  • Various accessories are available for this product.
  • The F-Series is so rugged, even a truck can stand on it!

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.

Pulse Outputs

  • Function: Scaled pulse output according to the bi-directional accumulated total (e.g. a pulse every 3.25 gallons).
    Max. frequency: 500Hz.
    Adjustable pulse length from 0.001 sec. to 9.999 seconds. The directional switch output is switched as soon as the pulse output reflects a "negative" quantity.
  • Type: Two passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Alarm Outputs

  • None.

Analog Outputs

  • Function: Re-transmitting the positive and/or negative flow rate - the output can be scaled to any range (e.g. +40 L/min to +600 L/min and -40 L/min to -600 L/min or positive flow rates only). The 4mA / 0V equals the minimum (zero) flow rate, it can NOT equal a negative flow rate value.
  • Type: One passive isolated, floating or loop powered 4 – 20mA output or one active (0)4 – 20mA or 0 – 10V DC output.

Applications

  • 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, salty atmospheres and temperatures between -40°C up to +80°C (-40°F up to 176°F).
  • Bi-directional flow measurement applications can be found by loading and unloading of ships where one bi-directional flowmeter is used. An other application is the correction for back-flow due to shocks in a pipeline caused by piston pumps or valve behavior.

Power Supply

  • Long life Lithium battery.
  • 4 – 20mA Output loop-powered.
  • 8 – 24V AC/DC.
  • 115 – 230V AC.
  • Basic: 8 - 30V DC.

Sensor Supply

  • 3.2, 8.2, 12, 24V DC.

Intrinsically Safe

  • ATEX:
    II 1 G Ex ia IIB/IIC T4 Ga
    II 1 D Ex ia IIIC T100 °C Da
  • IECEx:
    Ex ia IIC/IIB T4 Ga
    Ex ia IIIC T100 °C Da

Explosion Proof

  • ATEX:
    II 2 G / Ex d IIB T5 Gb
    II 2 D / Ex t IIIB T100°C Db

Communication
Function: All process data and settings can be read and modified through the communication link.
Protocol: Modbus ASCII / RTU.
Interface: RS232 / RS485 2-wire or 4-wire / TTL.
– HART communication is available with the F018 Flow rate Monitor / Totalizer.

LCD example F115
Photo F115