RMC621
Flow and energy manager

Universal flow and energy computer for gases, liquids and steam

RMC621

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Specs at a glance

Input

2...8x PFM
2...8x I
2...8x Impulse (aktiv)
2...6x RTD
2...8x Impulse (passiv)
Output

3...9x transmitter power supply
Display

LC-Dot-Matrix 160 x 80 Punkte
Calculations

mass/heat quantity
heat quantity difference
for gases: standard volume, heating value, mass

See all specifications

Field of application

The flow and energy manager RMC621 calculates standard volume as well as mass and energy flows of natural and technical gases, fluids and steam from flow, pressure, temperature and density. Depending on the medium calculation of the energy values occurs according to international standards (IAPWSIF97, SGERG88), real gas equations (SRK) or specific tables. For differential pressure measurements coefficients for flow compensation are calculated over the complete operating range of the flow sensor.

Energy management
Chemical industry
Heating and air conditioning
Pharmaceutical industry
Food and beverage
Plant and panel manufacture
Oil + petrochemicals

Benefits

Suitable for applications with gas, liquid, steam and water
Simultaneous calculation of up to 3 measuring applications, even if different fluids are used
Very precise process calculations (density, enthalpy, compressibility) on the basis of equations and/or storable tables with material data
Calculation standards: IAPWS-IF 97, SGERG88, AGA8, real gas equations (SRK, RK), ISO 5167, tables
Can be used with all common flow measuring systems (vortex, turbine, MID, orifice plate, differential pressure, etc.)
Compensation input for density signal
Logbook function for error messages and parameter changes with date and time

Predecessor

DXF351
ZL6171

ZL6351
ZL6121

Success stories

Prevent grain dust ignition in bulk tanks & silos

How temperature profiling increases plant safety and product quality in bulk tanks and silos for food storage.
Read the full story
Smart energy solutions

Smart energy solutions - Continuous data recording enables targeted optimization
Read the full story
Energieeffiziente Nahrungsmittelproduktion

Energiestudie bei Le Patron zeigt Einsparpotentiale auf
Read the full story
Energy efficiency in practice

Energy efficiency in practice – universal target agreement and exemption from the CO₂ tax at Temmentec AG
Read the full story
Sichere Druckluftversorgung

Endress+Hauser (Schweiz) AG unterstützt Kunden bei der Optimierung der Verfügbarkeit und Leistungsfähigkeit ihrer Druckluftanlagen.
Read the full story

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

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

Learn more about the FLEX selections

	EN
23/11/2017
13/02/2017
31/08/2010
04/02/2008
13/07/2006

Language:	German
Version:	23/11/2017
File size:	926.4 KB
File name:	TI00098RDE_1517.pdf

	EN
01/03/2017
15/08/2011
20/01/2011
28/11/2008
20/09/2007

Language:	German
Version:	01/03/2017
File size:	263.7 KB
File name:	BA00216RDE_0317.pdf

	EN
23/11/2017
13/02/2017
31/08/2010
04/02/2008
13/07/2006

Language:	English
Version:	23/11/2017
File size:	921.7 KB
File name:	TI00098REN_1517.pdf

	EN
28/02/2020

	EN
03/02/2020
11/08/2009
29/11/2007
14/12/2006
28/09/2004

	EN
11/08/2009
28/11/2008
20/09/2007
05/05/2006

	EN
14/02/2017
25/09/2014
31/08/2010
30/09/2009
30/07/2008

RMC621Flow and energy manager

Universal flow and energy computer for gases, liquids and steam

Specs at a glance

Input

Output

Display

Calculations

Field of application

Benefits

Predecessor

Success stories

Prevent grain dust ignition in bulk tanks & silos

Smart energy solutions

Energieeffiziente Nahrungsmittelproduktion

Energy efficiency in practice

Sichere Druckluftversorgung

Measuring principle

Measuring principle

Function

Calculations

Number of applications

Data storage

Calculation standards

Communication

Power supply

Loop power supply

Protection class

Input

Output

Dimensions (WxHxD)

Operation

Display

Software functions

Certificates

Back

RMC621 Technische Information

RMx621 Betriebsanleitung

RMC621 Technical Information

RMx621 / FML621

RMx621 Operating Instructions

RMx621 / FML621

Appendix to operating instructions RMx621

Operating instructions Flow and energy manager RMC 621

Zusatzbetriebsanleitung/Addition Manuals Ethernet-Anbindung

Operating Manuals ReadWin 2000 (GB)

Supplement to Operating Instructions RMC621

Brief Operating Instructions RMC621, RMS621

Back

Front cover for version without display

Front cover for version with display

Housing cpl. without front, incl. 3x dummy inserts

Bus board

Power supply 90-253VAC

Power supply 18-36VDC/20-28VAC

Power supply 90-253VAC, Ex- version, Ex ia, IS FM, IS CSA

Power supply 18-36VDC/20-28VAC, Ex-vers. Ex ia, IS FM, IS CSA

Display cpl. non Ex

Front board,version without display,non Ex

Display + front cover, non Ex

Display cpl. Ex, Ex ia, IS FM, IS CSA

Front board, version without display, Ex Ex ia, IS FM, IS CSA

Display + front cover, Ex, Ex ia, IS FM, IS CSA

Extension board temperature (Pt100/Pt500/Pt1000) cpl. incl. connector + fixing frame

Extension card temp. ATEX approval (Pt100/500/1000) cpl. incl. terminals

Extension board universal (PFM/pulse/analogue/loop power) cpl. incl. connector + fixing frame

Extension card univ. ATEX approval (PFM/pulse/analog/LPS) cpl. incl. terminal

Supply terminal 4 pole

Terminal plug-in 4pol.SMSTB2,5 91/92/53/

Terminal plug-in 4pol.SMSTB2,5 82/81/10/

Terminal plug-in 4pol.SMSTB2,5 83/81/110

Terminal plug-in 4pol.SMSTB2,5 104..101

Terminal plug-in 4pol.SMSTB2,5 134..131

Terminal plug-in 4pol.SMSTB2,5 1/5/6/2

Terminal plug-in 4pol.SMSTB2,5 3/7/8/4

Terminal RMx621/FML621, Input 1, RTD

Terminal RMx/FML621, Input 2, RTD

Terminal RMx/FML621, Input 2, 4-20mA

Terminal RMx/FML621, Input 1, 4-20mA

Terminal RMx/FML621 dig./open collecto

Terminal plug-in RMx/FML621 relay

RMC621
Flow and energy manager

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