product picture of the energy monitoring & application manager Flow-X

Flow-X
flow computer

The ideal flow computer for metering solutions

IFLOWX

Specs at a glance

Number of applications

Support up to 4 gas or 4 liquid runs per module (Flow-X/M, Flow-X/C)
Inputs

6x analog transmitter input, high accuracy
Input types are 4 to 20 mA, 0 to 20 mA, 0 to 5 V, 1 to 5 V
Accuracy mA inputs; 0.002% FS at 21 °C (69.8 °F), 0.008% at full ambient range of 0 ... 60 °C (32 °F ... 140 °F), long-term stability 0.01% per year
Resolution 24 bits. Analog inputs share same ground floating in relation to all other electronics.
2x resolution 0.02 °C (0.04 °F) for 100 ohms input. Error depending on range 0 ... 50 °C (32 °F ... 122 °F): Error <0.05 °C (0.09 °F) or better; -220 to +220 °C (–396 °F ... +428 °F): Error <0.5 °C (<0.9 °F.) or better
4x Independent HART loop inputs, on top of 4 to 20 mA signals
Support includes multi-drop for each transmitter loop, as well as support for redundant FC operation
4x Single or dual pulse input. Adjustable trigger level at various voltages. Frequency range up to 10 kHz for single and dual pulse. Compliant with ISO6551, IP252, and API 5.5. True Level A and level B implementation.
4x Periodic time input, 100μs to 5000μs. Resolution < 1ns
16x Digital status inputs. Resolution 100ns (10MHz)
4x Supports 1, 2 and 4 sphere detector configurations mode. Resolution 100ns (10MHz)
2x RS485 / RS232 serial port for ultrasonic meter, printer or generic, 115kb
Flow-X/P: 4x RS485 / RS232 and 1x RS232
Flow-X/C: 2x RS485 / RS232 and 1x RS485
optional 2x RS485 / RS232 and 2x RS485
2x RJ45 Ethernet interface, TCP/IP
Outputs

4x Analog output for process outputs and flow / pressure control. Resolution 14 bits, 0.075% FS.
Analog outputs share same ground floating in relation to all other electronics.
16x Digital output, open collector. Rating 100mA @24V
4x Pulse outputs open collector, 0.01 to 500 Hz
1x Meter pulse output for remote proving flow computers. Resolution 100ns (1MHz)
4x Frequency outputs for emulation of flowmeter signals. Maximum frequency 10KHz, accuracy 0.1%

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Field of application

The Flow-X flow computer provides gas and liquid volume, mass and energy conversion, event logging, parameter logging, and reports using latest technology. Identical modules are combined in different housings, offering a multi-run version Flow-X/P for 1–4 metering runs with a local touch screen, or the Flow-X/S version for cost efficient installations. Flow-X meets the requirements of even the most demanding applications and is the ideal partner for custody transfer measurements.

Custody transfer, fiscal and allocation gas and liquid measurement
On- and offshore, natural gas, LNG, flare gas, process fluids, CO2, H2
Loading and un-loading

Device properties:

Configurations for meter runs compliant to international standards incl. MID, OIML, AGA
Powerful modules for demanding applications
Each module features CPU, memory and equal in/outputs
Intuitive user interface for graphics display and web browser
True remote access via Ethernet
Station computer for up to 8 meter runs

Benefits

Reduced planning and installation costs through standard configurations
Very accurate volume conversion with multiple calculation cycles per second
High reliability through independent modules with their own volume conversion and storage of measured values, counter readings and events
Easy extension of installations with modules featuring equal in/outputs and 100% software configuration
Reduced service and maintenance costs with tamper-proof remote maintenance
Cost-efficient and flexible system integration of multiple streams

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Success stories

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Learn how InPipe Energy converts excess pipeline pressure into renewable power using its energy recovery system, supported by Endress+Hauser’s electromagnetic flow technology.
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Saving energy with smart e-boiler monitoring

Boosting sustainability with real-time energy insights
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Remote monitoring via Bluetooth®

Setting up and monitoring equipment at an ammonia plant presents significant challenges. Engie Energía uses advanced technological solutions, like remote communication devices in hazardous areas.
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System integrator advances connected workforce strategy

System integrators work in complex environments where efficient testing and timely system delivery are critical to maintaining productivity
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Reliable flow measurement despite difficult conditions

Schluchseewerk AG wanted to record and optimize the efficiency of its turbines at the pumped storage plant in Wehr. Endress+Hauser offers the optimum solution with its ultrasonic clamp-on flowmeter.
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Standard products
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Technical excellence

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High-end products
Highly functional and convenient

Technical excellence

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Specialized products
Designed for demanding applications

Technical excellence

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Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

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Most downloaded

Metrology

Product family: FLOWSIC, FLOWSIC600-XT

English version - 04/2025

New version available in English

Product root: IFL6XT- Region: Europe Approval agency: NMi Certin Approval number: R137/2012-A-NL1-21.05 rev. 02 Metrology type: Metrology

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Language:	English
Version:	28/04/2025
File size:	899.4 KB
File name:	9346245_02_AP_FLOWSIC600-XT_en_NMi_R137-2012-A-NL1-21-05_Rev02.pdf

Operating Instruction (BA)

Flow-X

English version - 01/2025

New version available in English

Gas Flow Computer

Select other languages, versions and see details Hide selection and details

	EN
01/01/2025

Language:	English
Version:	01/01/2025
File size:	3.8 MB
File name:	8029781_1EEU_OI_Flow-X_en_V2-0_2021-12_EHS.pdf

12 documents

Operating Instruction (BA)

Flow-X

Operating Instruction (BA)

English version - 01/2025

New version available in English

Gas Flow Computer

Select other languages, versions and see details Hide selection and details

	EN
01/01/2025

Language:	English
Version:	01/01/2025
File size:	3.8 MB
File name:	8029781_1EEU_OI_Flow-X_en_V2-0_2021-12_EHS.pdf

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Competence Brochure (CP)

FLOWSIC流量メータと流量測定機器

Competence Brochure (CP)

Japanese version - 09/2025

New version available in English

精密な計量— 正確な請求とプロセス制御のために

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Language:	Japanese
Version:	27/09/2025
File size:	1.9 MB
File name:	CP01584DJA_0225_0226_Flowsic_flow_meters.pdf

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Competence Brochure (CP)

FLOWSIC Flow Meters and Instruments

Competence Brochure (CP)

English version - 05/2026

New version available in English

Precise quantity measurement – for accurate billing and process control

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Language:	English
Version:	01/05/2026
File size:	3.1 MB
File name:	8030079_CP_Flow_meters_en_V3-0_2026.05_EHS_WEB.pdf

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Competence Brochure (CP)

MISURATORI E STRUMENTI PER LA PORTATA FLOWSIC

Competence Brochure (CP)

Italian version - 05/2025

New version available in English

MISURATORI E STRUMENTI PER
LA PORTATA FLOWSIC
Misura precisa delle quantità –
fatturazione precisa e controllo di
processo

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Language:	Italian
Version:	27/05/2025
File size:	6.1 MB
File name:	CP01584D16IT_02.25-00.pdf

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Innovation (IN)

Flow-X – Flow computer for custody metering solutions

Innovation (IN)

English version - 06/2026

New version available in English

Flow computing excellence

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Language:	English
Version:	01/06/2026
File size:	2.9 MB
File name:	8030093_IN_Flow-X_en_V6-1_2026.06_EHS_WEB.pdf

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Metrology

Product family: , Flow-X

Metrology

English version - 10/2025

New version available in English

Product root: IFLOWX-
Region: Europe
Approval agency: NMi Certin
Approval number: TC13096, revision 0
Metrology type: Metrology

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Language:	English
Version:	02/10/2025
File size:	1.3 MB
File name:	9426621_00_AP_Flow-X_en_NMi_TC13096_Rev00.pdf

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Metrology

Product family: , Flow-X

Metrology

English version - 10/2025

New version available in English

Product root: IFLOWX-
Region: Europe
Approval agency: NMi Certin
Approval number: TC13095, revision 0
Metrology type: Metrology

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Language:	English
Version:	02/10/2025
File size:	1.3 MB
File name:	9426620_00_AP_Flow-X_en_NMi_TC13095_Rev00.pdf

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Metrology

Product family: , Flow-X

Metrology

English version - 12/2024

New version available in English

Product root: IFLOWX-
Region: Europe
Approval agency: NMi Certin
Approval number: T11449, revision 13
Metrology type: Metrology

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Language:	English
Version:	23/12/2024
File size:	1.1 MB
File name:	9319490_09_AP_Flow-X_en_NMi_T11449_Rev13.pdf

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Metrology

Product family: , Flow-X

Metrology

English version - 12/2024

New version available in English

Product root: IFLOWX-
Region: Europe
Approval agency: NMi Certin
Approval number: T10548, revision 17
Metrology type: Metrology

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Language:	English
Version:	23/12/2024
File size:	1.1 MB
File name:	9317206_11_AP_Flow-X_en_NMi_T10548_Rev17.pdf

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Application software

Flow-Xpress

Application software

Version - 3.3.3

New version available in English

Software for configuration and parameterization of Flow-X flow computers

Language:	Language neutral
Version:	11/06/2025
File size:	156 MB
File name:	Flow-Xpress

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Flow-X flow computer

The ideal flow computer for metering solutions

Specs at a glance

Number of applications

Inputs

Outputs

Field of application

Benefits

Success stories

Maximize energy recovery in retrofit water pipelines

Saving energy with smart e-boiler monitoring

Remote monitoring via Bluetooth®

System integrator advances connected workforce strategy

Reliable flow measurement despite difficult conditions

Measuring principle

Measuring variables

Number of applications

Ambient temperature range

Electrical connection

System

Supported flow meters*

Supported gas chromatographs

Conformities

Hazardous area approvals

Inputs

Outputs

Calculations

Back

Product family: FLOWSIC, FLOWSIC600-XT

Flow-X

Flow-X

FLOWSIC流量メータと流量測定機器

FLOWSIC Flow Meters and Instruments

MISURATORI E STRUMENTI PER LA PORTATA FLOWSIC

Flow-X – Flow computer for custody metering solutions

Product family: , Flow-X

Product family: , Flow-X

Product family: , Flow-X

Product family: , Flow-X

Flow-Xpress

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FLOW-X/T 7" DISPLAY WINCE

FLOW-X/S0 BASE BOARD

FLOW-X/LT 10" DISPLAY WIN7 PTB

CABLE, MALE/FEMA 3M00 SUB-D37 4-40UNC

CLAMP ,DR.SW.PL 313P.BLOCK/137P.SUB-D

FLOW-X/P0 REV2 PANEL WITH DISPLAY

FLOW-X/M REV2 FC MODUL

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Flow-X
flow computer