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The E126 explosion-proof flow computer for corrected gas and liquid volume measurement. It measures the actual flow…

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F-Series: F117

Field mount - Totalizer monitor

with high / low totalizer alarms and analog output

The F117 has been developed for applications where the totalized quantity has to be monitored and not the flow rate.
When a start command is given, the totalizer is reset to zero. The amount of product measured from that moment is monitored continously for high totalizer values. Monitoring for low totalizer values will commence after a stop command is given or after a pre-defined time.
The display shows the preset and actual totalized value, percentage and flow rate. The totalizer alarms are clearly indicated and two outputs are available to transmit alarm conditions. The analog output value mirrors the measured quantity in relation to the preset value. For remote control, an external start and stop input is availble as standard.

  • 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 F117


  • The desired totalized (preset) quantity can be set by the operator.
  • Totalizer monitoring: two alarm values can be set: low and high totalizer alarm.
  • Alarm values can be changed by the operator or they can be password protected.
  • Analog output signal reflecting the totalized value or flow rate.
  • Quadrature input to detect the direction of flow.
  • Total and accumulated total count up and down accoording to the flow direction.
  • Displays total and preset value or percentage simultaneously.
  • Flow rate: seven 17mm (0.67") digits (shown after stop command).
  • Total - reset after a start-command: seven 17mm (0.67") digits.
  • Accumulated total - not resettable: eleven 8mm (0.31") digits.
  • Displays clear alarm messages.
  • 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.

Status Inputs

  • Remote control: start (with quadrature input not available).
  • Remote control: start, stop or continuous signal.

Pulse Outputs

  • None.

Alarm Outputs

  • Function: Two alarm outputs for low and high totalizer alarm.
  • Type: Two passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Analog Outputs

  • Function: Re-transmitting the flow rate or the totalized quantity in relation to the preset quantity - the output can be scaled to any range (e.g. 0.00 L to 2.50 L).
  • Type: One passive isolated, floating or loop powered 4 – 20mA output or one active (0)4 – 20mA or 0 – 10V DC output.


  • 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).
  • Automated processes where a minimum and / or a maximum dispensed quantity has to be monitored continuously.

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

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 F117
Photo F117