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F-Series: F120

Field mount - Flow rate controller

with analog control output and high / low alarms

The F120 single loop controller has been designed to offer outstanding control performance and provide a reliable solution for a wide variety of flow control applications. The single loop flow controller accepts most pulse inputs from flowmeters and has a 4 - 20 mA output for controlling a valve or pump. The F120 is part of the Fluidwell process controller family and is the alternative for local control loops.

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 F120

Features

  • Two control modes:
    - Hand (manual valve control)
    - Auto (control flow to obtain the desired flow rate)
  • Bumpless transistion between the control modes.
  • Flow rate monitoring: two alarm values can be set: low and high flow rate alarm.
  • Alarm values can be changed by the operator or they can be password protected.
  • Safety mode input to place the valve in a safe position
  • Flow rate: seven 17mm (0.67") digits.
  • Total - resettable: seven 17mm (0.67") digits.
  • Displays clear alarm messages.
  • LED backlight.
  • Auto backup of settings, totalizer value, setpoint and control mode 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, open collector, NAMUR, NPN/PNP pulse, Sine wave (coil), active pulse signal.
  • (0)4 – 20mA.

Status Inputs

  • Remote control: external reset for clearing total.
  • Remote control: Safety mode which stops the control process and places the valve in a safe position.

Pulse Outputs

  • None.

Alarm Outputs

  • Function: Two alarm outputs for low and high flow rate alarm (not available with analog input).
  • Type: Two passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Analog Outputs

  • Function: Control output to position the valve of the flow.
  • 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).
  • Applications where a constant liquid or gas flow is desired without the need to manually control the flow.

Power Supply

  • Long life Lithium battery.
  • 4 – 20mA 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 RTU.
Interface: RS232 / RS485 2-wire or 4-wire / TTL.
– HART communication is available with the F018 Flow rate Monitor / Totalizer.

LCD example F120
Photo F120