Flow rate / Totalizers

General Information

Introduction

The product group "Flow rate / Totalizers" offers an extensive range of solutions from a basic totalizer up to a powerful flow rate monitor with flow curve linearization, flow rate monitoring, signal transmission, alarm and pulse outputs as well as full Modbus communication.

The functionality of these products is based on two main hardware platforms:

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F0-Series platform: these products offer one signal input only and can have one pulse or alarm output. This is our basic product range.

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F1-Series platform: these products have one or more signal inputs, multiple outputs and communication option. This is our advanced product range.

Both platforms share the same technology, enclosures, display and options but are dedicated to their own typical functionality.

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 our M-Series and ProcessMonitor.com 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.

Operator information

The following features are available on all flow rate / totalizer models. Further product specific features can be found in the products datasheet.

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Clear operator information is a key feature of these products. Essential information is displayed as clear text (e.g. "Low flow rate") and not as mysterious abbreviations.

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The dedicated display shows two lines of information simultaneously along with its function like "flow rate" or "accumulated total" so the operator understands the displayed information.

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The resettable total is displayed with seven 17mm (0.67") high digits with its engineering unit that is software selectable which makes the use of adhesive labels on the outside of the enclosure unnecessary. The following units can be selected through software: ml, L, m³, GAL, USGAL, kg, lb, bbl or no unit.

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Accumulated total is displayed with eleven 8mm (0.31") digits and uses the same measuring unit as total.

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Flow rate information is normally displayed with 8mm (0.31") digits at the bottom line of the display but can be set to 17mm (0.67") digits if desired. The measuring unit is selected separately from total. The following engineering units can be selected: mL - L - m³ - mg - g - kg - ton - GAL - bbl - lb - cf - REV - scf - Nm³ - NL - P or no unit. The flow rate can be calculated per second, minute, hour or per day.

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The trend indication function shows an increase or decrease of the actual flow rate.

Configuration menu

All configuration settings are accessed via a simple operator menu which can be passcode protected to prevent unauthorized access. Each setting is clearly indicated with an alphanumerical description, therefore avoiding confusing abbreviations and baffling codes. There are no sensitive DIP-switches or trimmers, you simply select "Flowmeter" as main function, after which you can select "NPN pulse" or "span" etc. Once familiar with one F-Series product, you will be able to program all models in the series without a manual. All settings are safely stored in EEPROM memory. The clear and easy structured configuration menu is one of the most appreciated features of the F-Series.

Signal input type

For the flow rate / totalizers, three basic signal input types are available:

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Pulse signals: 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).

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Analog signal: (0)4 – 20mA or 4 – 20mA input loop powered version. The input signal can be tuned within this range (e.g. from 4.0mA to 10.0mA). To avoid counting at minimum signal, a low cut-off filter is available.

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Analog signal: 0 – 10V DC. 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 counting at minimum signal.

Data protection

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 passcode protected to prevent unauthorized access.