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Flow Computers

General Information

Introduction

The product group "Flow Computers" offers a unique range of comprehensive solutions to calculate the consumption and net flow at standard conditions or the ratio between two flows. Typical applications are found on board of ships to calculate the fuel consumption, gas flow calculation in power plants and the monitoring of two component blending.

The functionality of these products is based on the F1-Series hardware platform as multiple inputs are required for flow, temperature and pressure measurement.

All models are available for both safe area and hazardous area applications. Moreover, wireless data re-transmission and remote flow rate / totalizer monitoring is offered with the ProcessMonitor products and services .

For an explanation of the various options such as analog and pulse output signals, communication, power supply and enclosures, please read the section detailing the F-Series products.

Functional overview More >>

The following features are available in the advanced flow computer models range. A more detailed description of each flow computer and it's typical features can be found in the products datasheet.

  • ratio (A/B) - model F114
  • sum (A+B) - model F116
  • differential / consumption (A-B) - model F116
  • differential / consumption (A-B) with temperature compensation - model F127
  • liquid volume calculation with temperature compensation - model F126-EL
  • gas volume calculation with temperature and pressure compensation - model F126-EG

Easy and multi-applicable More >>

Easy menu structure

The F-Series is outstanding user-friendly. Configure with a simple, logical menu-driven structure, instead of with difficult hardware changes or actions. With alphanumerical descriptions of each setting instead of confusing abbreviations and difficult codes. Once familiar with an F-Series product, you can program ALL models in ALL series without need for a manual: Know one, know them all! Save on programming costs and time with Fluidwell, each time you modify product settings.

Signal input type More >>

For the flow computers, four basic signal input types are available:

  • Pulse signals for flow measurement: sine wave (coil) low sensitivity (80mVp-p), sine wave high sensitivity (20mVp-p), Namur, NPN, PNP, reed-switch or active pulses. For most signals a low pass filter can be enabled to ignore pulse bounce. The sine wave input can even be supplied with 10mV or 5mVp-p sensitivity (option ZF and ZG).
  • Analog signal (0)4 – 20mA for flow, temperature and pressure measurement. The input signal can be tuned within this range (e.g. from 4.0mA to 10.0mA). To avoid incorrect signal processing at minimum signal, a low cut-off filter is available.
  • Analog signal: 0 – 10V DC for only a few models. The input signal can be tuned within this range (e.g. from 2.0 to 5.0V DC). A low cut-off filter is available here too, to avoid signal processing at minimum signal.
  • PT100 signal for temperature measurement.

Data protection More >>

All settings and totals are stored in EEPROM memory ensuring that no information is lost in the event of power failure or battery exchange.

To reset total, the CLEAR key must be pressed twice to avoid undesired initialization. Accumulated total cannot be reset to zero. The configuration menu and alarm values can be password protected to prevent unauthorized access.

 
Flow Computers with linearization
F016Field mount - Flow rate indicator / totalizer with linearization and pulse output
F018Field mount - Flow rate monitor / totalizer with linearization, pulse/alarm and analog outputs and HART communication
F112Field mount - Flow rate indicator / totalizer with linearization, analog and pulse outputs
F118Field mount - Flow rate monitor / totalizer with linearization, high / low alarms, analog and pulse outputs
D016DIN Panel mount - Flow rate indicator / totalizer with linearization and pulse signal output
E018Explosion proof - Flow rate monitor / totalizer with linearization, high / low alarms, analog and pulse signal outputs and HART Communication
E112Explosion proof - Flow rate indicator / totalizer with linearization, analog and pulse outputs
 
Advanced Flow Computers
F126-ELField mount - Flow computer with temperature compensation for corrected liquid volume
F126-EGField mount - Flow computer with temperature and pressure compensation for corrected gas volume
F127Field mount - Differential flow computer with temperature compensation for corrected liquid volume
 
Ratio
F114Field mount - Ratio monitor / totalizer with high / low alarms and analog outputs
 
Differential / Sum
F116Field mount - Differential / sum flow computer with analog and pulse outputs