Liquid Flow Computers, Totalizers, and Indicators
Description
Liquid flow computers, totalizers, and indicators are devices used to measure, calculate, and display the flow of liquids. They process input signals from flow sensors and other process variables to provide accurate flow measurements and totalize the volume of liquid that has passed through a system.
Working Principle
Flow computers, totalizers, and indicators operate by receiving input signals from various sensors, such as differential pressure meters, true mass flow meters, and velocity meters. These devices convert the input signals into flow measurements using pulse (frequency), analog current, or analog voltage inputs. The processed data is then used to calculate the total flow and display it on the indicator. This process is crucial for monitoring and controlling liquid flow in various industrial applications, ensuring accurate and reliable measurements.
Applications
Flow computers, totalizers, and indicators are widely used in industries such as oil and gas, water and wastewater treatment, and chemical processing. For example, in the oil industry, they are used for flow monitoring and indication on oil rigs, pipelines, and oil wells, which are often located in remote and harsh environments. In the food industry, batch controllers are employed to ensure precise ingredient measurements during production processes.
Advantages over other Flow Computers, Totalizers, and Indicators
One advantage of certain flow computers and totalizers, such as the Fluidwell explosion-proof E-series, is their ability to operate as standalone devices without the need for external power. This feature makes them particularly suitable for use in hazardous and remote industrial locations where infrastructure is limited.
Limitations
A limitation of flow computers, totalizers, and indicators is their dependency on the accuracy and reliability of the input signals from flow sensors. Any inaccuracies or malfunctions in the sensors can lead to incorrect flow measurements and totalizations.
Considerations
When selecting flow computers, totalizers, and indicators, it is important to consider factors such as initial costs, operating expenses, durability, accuracy, and maintenance requirements. Devices that are designed to withstand harsh environmental conditions may have higher initial costs but offer greater durability and reliability. Additionally, the accuracy of the device is crucial for ensuring precise flow measurements, which can impact overall operational efficiency and cost-effectiveness. Regular maintenance and calibration may be necessary to maintain optimal performance and accuracy over time.
from McCrometer, Inc.
Flow monitoring at scale can be difficult. Whether you're managing complex water quality projects or need a reliable solution for multi-sensor data collection, the FL1500 flow logger offers the agility, accuracy, and ease of use that professionals in the field demand. The FL1500, a Hach Flow... [See More]
- Media Type: Liquid
- Inputs: 4
- Display Types: Digital Display (Readouts)
- Operating Temperature: -4 to 140
from McCrometer, Inc.
Discover how to save 20.25% on the FL901 Level Alarming System Basic Bundle!. Find the "Promotion - FL901 Basic Bundle Package for 2025" brochure with full details in the Downloads section. Offered as a reliable and cost-effective solution for open channel portable flow monitoring, the FL900 Flow... [See More]
- Media Type: Liquid
- Features: Sanitary
- Inputs: 16
- Operating Temperature: -0 to 140
from McCrometer, Inc.
The battery-powered digital register is the reporting input and output control device for propeller flow meters. It is available as meter mount or remote mount. The digital register allows the measurements, functional programming, control of the sensor and data recording to be communicated through... [See More]
- Media Type: Liquid
from KROHNE Messtechnik
The SUMMIT 8800 is a digital flow computer for custody transfer (CT) measurement. Its state of the art full color graphical touch screen allows a graphical representation of the measurement process, with all measured values shown in real time; Up to 5 different types of meters combined in one flow... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts); Computer
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from Hoffer Flow Controls, Inc.
General Description. ACE II incorporates the newest technological advances in electronics and the time proven solutions in cryogenic measurements from the Hoffer ACE system. Graphical display and “soft keys ” allows for easy interaction between operator and the instrument. Multiple, easy... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Fluidwell bv
The F116 flow computer has been developed to calculate differential / consumption or total volume. The usual difficulties encountered in such applications include: pulsating flows, very low consumption readings, vibration and high ambient temperatures. These are all well catered for in the design... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass; Totalizer
- Local Interface: Digital Front Panel
from KOBOLD Instruments, Inc.
Product Features. Analog Input 0-5 V, 0-10 V, 1-5 V 4-20 mA or 0-20 mA. Display Rate, Total, Peak or Valley. Completely User Programmable. Analog or Serial Communications. NEMA 4X Front Panel. The KOBOLD INT series of controllers is designed to allow totalization and rate metering with sensors... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Totalizer
- Local Interface: Digital Front Panel
from OMEGA Engineering, Inc.
The DPF60 is a combination microprocessor-based digital rate indicator and integrating totalizer. It accepts inputs of 4 to 20 mA, 0 to 20 mA, 0 to 5 V, or 1 to 5 V and can be scaled for engineering units directly from the NEMA 4X (IP66) rated front panel without tweaking internal potentiometers. [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Totalizer
- Local Interface: Digital Front Panel
from Qualitrol Company, LLC
Designed to indicate “pump on ” and “pump off ” conditions within a forced cooling system. Select models also indicate flow direction. Up to two SPST or SPDT switches are available for control and/or alarm functions. Large dial face provides easy viewing and is magnetically... [See More]
- Media Type: Liquid
from Flow Technology, Inc.
The SL Series Flow Computers consist of three panel-mounted display units for use with liquid and gas flowmeters. All units are easily programmed through the front keypad or with a Windowsbased PC software program. Each device has multiple assignable outputs allowing tremendous flexibility to set... [See More]
- Media Type: Liquid; Gas/Steam
- Local Interface: Digital Front Panel
- Display Types: Digital Display (Readouts)
- Generic Inputs: Pulse (Frequency) Inputs
from Aalborg Instruments
Design Features. Displays instantaneous, total and accumulated flow rates. Built-in Flow Linearizer (10 point linearization of the flow curve). Up to 47 different volumetric and mass flow engineering units. Large 13mm (0.51") digits for flow rate and 5.5mm (0.21") for Total. Digital RS-232 or RS-485... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from Cole-Parmer
Indicators/switches offer extra level of reliability and protection with a built-in switch. Each SPDT switch is rated for 1 amp, 24 VDC resistive or 0.3 amp, 110 VAC. Repeatability is <tol >2%; accuracy is <tol >5%. An LED lights when the set point is reached for easy field calibration. [See More]
- Media Type: Liquid
- Operating Temperature: 180
from Badger Meter
The Cox EC80 Flow Processor is a programmable electronic processor, providing total compensation to enhance flow meter accuracy, while extending the linear flow range. Packaging is provided for remote, direct or embedded mounting to support most installation or application requirements. Provides... [See More]
- Media Type: Liquid
- Outputs: Frequency / Pulse
- Generic Inputs: Analog Voltage Inputs
- Operating Temperature: -40 to 185
from Florite International, Inc.
The 900 Series is an economic one loop microcomputer-based instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs. Other 900 Series features include .005% high accuracy PID, batch, and dose control functions. Additionally, the 900 Series encompasses... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Analog Meter or Indicator; Digital Display (Readouts); Computer
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Analog Front Panel; Digital Front Panel; Computer Interface
from ProSoft Technology, Inc.
The MVI46-AFC is an in-rack Liquid & Gas Flow Computer Module for the SLC platform. The MVI46-AFC Flow Computer module supports 8 meter channels for the measurement of hydrocarbon gases and liquids using currently accepted industry measurement standards. The module calculates flow rates,... [See More]
- Media Type: Liquid; Gas/Steam
- Local Interface: Digital Front Panel; Computer Interface
- Rates Displayed: Mass
- Computer Interface: Other
from Willowglen Systems Inc.
Willowglen ’s Unisen Series 5 Flow Computer outperforms the competition – with standard and advanced features, and flexible configuration: · Available in different sizes to accommodate small to large numbers of flow meters (maximum 25 flow meters). · Flexible enough to deal... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric
- Local Interface: Digital Front Panel; Computer Interface
from Liquid Controls Group; a Unit of IDEX Corporation
The LectroCount „ ¢LCR System is an electronic register that replaces the mechanical register, calibration gears and/or adjuster mechanism. This system utilizes Weights & Measures approved hardware and software. The LCR is available with or without internal pulser, and accepts direct... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Totalizer
- Local Interface: Digital Front Panel; Computer Interface (optional feature)
from Spirax-Sarco
The M850 is a flexible and easy to use flow computer that accurately calculates mass and energy flow for steam, gas and liquids across a wide variety of applications. [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Mass
- Local Interface: Digital Front Panel
from Hoffer Flow Controls, Inc.
The “ICE ” Integrated Cryogenic Electronics incorporates the newest technological advances in electronics and the time proven solutions in cryogenic flowmeter measurement. The ICE Cryogenic System is used to measure and record LIN, LOX, LAR, CO2 and other cryogenic liquids for truck... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Fluidwell bv
The F126-EL flow computer has been developed to calculate corrected liquid volume at normal conditions. The corrected volumetric flow is calculated by measuring the uncorrected volumetric flow and actual line temperature which is processed with the thermal expansion coefficient algorithm stored in... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass; Totalizer
- Local Interface: Digital Front Panel
from KOBOLD Instruments, Inc.
Product Features. Display Rate or Total. Batching Version Available. 2 Presets for Rate or Total. Fully Scalable. Analog or Serial Communications. NEMA 4X Front Panel. Pulse Input to 10 kHz. KOBOLD's MRT series of controllers offers users a full range of frequency input control options. Through use... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Totalizer
- Local Interface: Digital Front Panel
from OMEGA Engineering, Inc.
The FPM-5750 Battery Operated Flow Indicator and Totalizer is compatible with the following flow sensors: FP-5300, FP-5100, FP-5200 and FP-6000 flow sensors (see related links below). The large digital display indicates flow rate and totalized flow volume simultaneously. One of the three totalizers... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Velocity; Totalizer
- Local Interface: Digital Front Panel
from Cole-Parmer
Polypropylene [See More]
- Media Type: Liquid
- Operating Temperature: 180
from Badger Meter
The Cox ® FC-5000 Flow Computer is a microprocessor-driven device designed for flow monitoring. The FC-5000 is compatible with the complete line of Badger Meter industrial flow meters. High Resolution. Easy Viewing. The Cox FC-5000 Flow Computer can be configured with temperature sensor inputs... [See More]
- Media Type: Liquid
from Florite International, Inc.
The Florite Model 990X is an innovative, technically superior, high quality and reliable microcomputer-based controller suitable for any commercial or industrial application. The instruments user configurable screw-terminal channels enable any mix of up to eight inputs and or outputs regardless of... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Analog Meter or Indicator; Digital Display (Readouts); Computer
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Analog Front Panel; Digital Front Panel; Computer Interface
from ProSoft Technology, Inc.
The MVI71-AFC is an in-rack Liquid & Gas Flow Computer Module for the PLC platform. The MVI71-AFC Flow computer module supports 8 meter channels for the measurement of hydrocarbon gases and liquids using currently accepted industry measurement standards. The module calculates flow rates,... [See More]
- Media Type: Liquid; Gas/Steam
- Computer Interface: Serial; Other
- Local Interface: Digital Front Panel; Computer Interface
- Inputs: 4
from Liquid Controls Group; a Unit of IDEX Corporation
LectroCount3 „ ¢ POS System is an electronic register that replaces the mechanical register, printer, calibration gears and/or adjuster mechanism. Retrofits to most truck mounted meters regardless of brand or principle of operation. This system utilizes Weights and Measures approved... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Totalizer
- Local Interface: Digital Front Panel
from Spirax-Sarco
The M850 is a flexible and easy to use flow computer that accurately calculates mass and energy flow for steam, gas and liquids across a wide variety of applications. [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Mass
- Local Interface: Digital Front Panel
from Hoffer Flow Controls, Inc.
Introduction: The Nova-Flow Series of flow computers is a family of highly flexible, modular flow computers designed for basic rate and total flow display, batch control for liquid and gas flow measurement, as well as for thermal energy measurement. With more than 500,000 unique configurations... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Fluidwell bv
The E126-EL delivers accurate measurement while withstanding the harshest conditions.The corrected volumetric flow is calculated by using the thermal expansion coefficient algorithm stored in the flowcomputer. The reference temperature can be defined as desired, e.g. 15°C, 20°C or 60°F. A typical... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from KOBOLD Instruments, Inc.
Product Features. Simple Economical Water Flow Totalizing. 1/2" and 3/4" Sizes. Rotatable Indicator. 8 Digit Registration with 1/10th Gallon Sweep. Rugged Bronze Body. The KOBOLD WM series is a single jet, dry type, totalizing water meter. It is and ideal choice for a range of sub-metering... [See More]
- Media Type: Liquid
- Display Types: Analog Meter or Indicator
- Rates Displayed: Totalizer
- Local Interface: Analog Front Panel
from OMEGA Engineering, Inc.
FDT-40 Series ultrasonic flow and energy meters clamp on to the outside of pipes and do not come in contact with the internal liquid. The technology has inherent advantages over alternate devices including: low-cost installation, no pressure head loss, no moving parts to maintain or replace, no... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Cole-Parmer
Brass [See More]
- Media Type: Liquid
- Operating Temperature: 212
from Badger Meter
The Cox flow processors models IFC15, IFC15BBA and IFC15L track all variables to compensate for viscous and inertial effects due to fluid temperature and pressure variations. Our enhanced Digital Signal Processing (DSP) technology allows exceptional signal characterization and fast response to... [See More]
- Media Type: Liquid
- Outputs: Frequency / Pulse
- Generic Inputs: Analog Voltage Inputs
- Operating Temperature: -40 to 185
from Florite International, Inc.
The Model N920 is an embedded version of the 900 Series instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs. Other Model N920 features include .005% high accuracy PID, batch, and dose control functions. Additionally, the Model N920 encompasses rate... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Analog Meter or Indicator; Digital Display (Readouts); Computer
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from ProSoft Technology, Inc.
The MVI69-AFC is an in-rack Liquid & Gas Flow Computer Module for the CompactLogix platform. The MVI69-AFC Flow computer module supports 8 meter channels for the measurement of hydrocarbon gases and liquids using currently accepted industry measurement standards. The module calculates flow... [See More]
- Media Type: Liquid; Gas/Steam
- Computer Interface: Serial; Other
- Local Interface: Digital Front Panel; Computer Interface
- Inputs: 4
from Liquid Controls Group; a Unit of IDEX Corporation
Enables you to select and automatically control Preset Valve closure so that an exact predetermined volume will be delivered. Valve closure is controlled either in two stages, with a pre-shut-off dwell period to prevent hydraulic shock or in a single-stage for shut-off only. Normally single stage... [See More]
- Media Type: Liquid
- Display Types: Analog Meter or Indicator
- Rates Displayed: Totalizer
- Local Interface: Analog Front Panel
from Hoffer Flow Controls, Inc.
The Model 2005 is a microprocessor based temperature compensated flow rate indicator/totalizer that provides local display and transmits flow data for control capability. The unit is part of a cost effective family of flow products designed to accept inputs from pulse producing or analog producing... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from Fluidwell bv
he F016 is a local indicator which displays the actual flow rate, total and accumulated total. In addition to the average K-Factor or Span, eight linearization points can be entered with their frequencies or values. The unit will interpolate between these points, greatly enhancing accuracy in any... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass; Totalizer
- Local Interface: Digital Front Panel
from OMEGA Engineering, Inc.
The DPF301 Series comprises 4 to 20 mA loop-powered panel-mount indicators that display process variables in engineering units (GPM, LPM, psig, %RH, etc.), with an adjustable decimal point for rate and total display. Because these indicators take power directly from the current loop, the user can... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Cole-Parmer
Stainless Steel [See More]
- Media Type: Liquid
- Operating Temperature: 212
from Badger Meter
The Cox ® Model 4050 Flow Computer is designed to meet the ever-changing requirements of flow metering and can be tailored to virtually any flow application. Accurate Monitoring. User-Friendly Data. The Cox Model 4050 Flow Computer is programmed to meet individual requirements, including... [See More]
- Media Type: Liquid
from Florite International, Inc.
The 700 Series is an economic one loop microcomputer-based instrument incorporating a digital input, as well as a relay output. Other 700 Series features include rate metering, dual totalizing, easy menu navigation, multiple audio/visual alarm functions, a serial RS-232 port, LWAN (modem)... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Analog Meter or Indicator; Digital Display (Readouts); Computer
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Digital Front Panel; Computer Interface
from ProSoft Technology, Inc.
The MVI56 Liquid & Gas Flow Computer Module is a ControlLogix ® backplane compatible module that allows ControlLogix processors to easily support flow applications performing measurement of hydrocarbon gases or liquids using AGA 3, 7, 8 and API 2540 measurement standards. The module... [See More]
- Media Type: Liquid; Gas/Steam
- Computer Interface: Other
- Local Interface: Digital Front Panel; Computer Interface
- Inputs: 4
from Liquid Controls Group; a Unit of IDEX Corporation
A positive displacement meter measures gross volume regardless of temperature and/or specific gravity. On those products with linear coefficient of expansion, a Temperature Volume Compensator automatically corrects registration to indicate the volume of the liquid at a selected base temperature... [See More]
- Media Type: Liquid
- Display Types: Analog Meter or Indicator
- Rates Displayed: Mass
- Local Interface: Analog Front Panel
from Hoffer Flow Controls, Inc.
Hoffer Flow Controls, Inc. of Elizabeth City, North Carolina proudly introduces the LCD HIT-4U Rate Indicator with Dual Totalizers, Modbus and Data Logging. Featuring a 6-digit rate display and separate 8-digit resettable and non-resettable flow totalizers; the HIT-4U is configurable for 4-20 mA... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Fluidwell bv
The F010 is a local indicator with large 26mm (1") high digits which displays the actual flow rate. The measuring and time unit to be displayed below the flow rate are simply selected through an alphanumeric configuration menu. No adhesive labels have to be put on the outside of the enclosure: a... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass
- Local Interface: Digital Front Panel
from OMEGA Engineering, Inc.
The FDT100 Series comprises advanced-technology water flowmeters. This series uses transit-time ultrasonic technology in which the signal is transmitted and received alternately between 2 flow sensors and the “time of flight ” determines the flow rate. The battery-powered transmitter... [See More]
- Media Type: Liquid
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Hoffer Flow Controls, Inc.
GENERAL DESCRIIPTIION. Featuring 5 digits of rate and 8 digits of total, the HRT1 is a loop powered indicator capable of accepting magnetic pickup, DC pulse or switch closure inputs. The HRT1 uses the 4-20mA loop to provide power when this output is used and to provide the HART ® communication... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Totalizer
- Local Interface: Digital Front Panel
from Fluidwell bv
The F090-A-PL is an economical loop powered general purpose indicator with large 26mm (1") high digits. The measuring unit to be displayed is simply selected through an alphanumeric configuration menu. No adhesive labels have to be put on the outside of the enclosure: a weather proof and... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Mass
- Local Interface: Digital Front Panel
from OMEGA Engineering, Inc.
The new Model FC-21 multifunction batcher and the Model FC-22 flow computer satisfy instrument requirements for a variety of flow meter applications. Omega offers many different types of flowmeters: paddlewheels, turbines, positivie displacement, annemometers, mass flow, etc. for many application... [See More]
- Media Type: Liquid; Gas/Steam
- Display Types: Digital Display (Readouts)
- Rates Displayed: Volumetric; Velocity; Mass; Totalizer
- Local Interface: Digital Front Panel