©Endress+Hauser
Field of application
The density measuring line can be used in all liquid media for medium detection, to calculate the reference density, to calculate the concentration of a liquid, to convert values to different units such as °Brix, °Baumé, °API etc. Additional software modules, such as determining the reference density, intelligent medium differentiation and concentration identification, support the user in monitoring the quality. EEx ia, EEx de and EEx d explosion protection for use in hazardous areas.
Density computer for density, reference density, concentration of liquids.
Benefits
Measurement used in tanks and pipes without the need for additional pipework
Large number of process connections to choose from: universal usage
Integration of existing temperature measurements for temperature compensation
No mechanically moving parts: no maintenance, no wear, long operating life
pump dry-run protector can be provided with the same process connection
Additional calculations, such as the mass of the product, can be performed in the Density Computer FML621
The integrated data logger supports users during operation and servicing
Extended selection
High-end products
Highly functional and convenient
Technical excellence
Simplicity
©Endress+Hauser
Simple products
Easy to select, install and operate
Technical excellence
Simplicity
Standard products
Reliable, robust and low-maintenance
Technical excellence
Simplicity
High-end products
Highly functional and convenient
Technical excellence
Simplicity
Specialized products
Designed for demanding applications
Technical excellence
Simplicity
FLEX selections
Technical excellence
Simplicity
Fundamental selection
Meet your basic measurement needs
Technical excellence
Simplicity
Lean selection
Handle your core processes easily
Technical excellence
Simplicity
Extended selection
Optimize your processes with innovative technologies
Technical excellence
Simplicity
Xpert selection
Master your most challenging applications
Technical excellence
Simplicity
Loading alternative products
Success stories
Time saved, safety increased
Employees of Returkraft regularly have to fulfill and document all requirements of the SIL measuring points in the plant.
Read the full story
Characteristic / Application
Density Computer
Output
4-20mA
Options
Mathscapabilities for further calculations
Specialities
Configuration with ReadWin2000
Most downloaded
Liquiphant M Density
Operating instructions
English version - 03/2009
Density Computer FML621 for Liquids.
Also for Use in Hazardous Areas.
EN
BG CS DE ES FR IT JA PL RU
25/03/2009
29/11/2007
Language:
English
Version:
25/03/2009
File size:
5 MB
File name:
BA335Fen_0309.pdf
TI Liquiphant FTL51B Density
with Density Computer FML621
English version - 09/2023
Vibronic
EN
DE ES FR IT JA PT RU ZH
30/09/2023
01/08/2022
28/06/2019
Language:
English
Version:
30/09/2023
File size:
1.5 MB
File name:
TI01466FEN_0323-00.pdf
36 documents
TI Liquiphant FTL63 Density
with Density Computer FML621
Vibronic
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
30/09/2023
Language:
English
Version:
30/09/2023
File size:
1.5 MB
File name:
TI01714FEN_0123-00.pdf
TI Liquiphant FTL51B Density
with Density Computer FML621
Vibronic
EN
German Spanish French Italian Japanese Portuguese Russian Chinese
30/09/2023
01/08/2022
28/06/2019
Language:
English
Version:
30/09/2023
File size:
1.5 MB
File name:
TI01466FEN_0323-00.pdf
Technical Information
Liquiphant M Density and Density Computer
FML621
Density computer for liquids
EN
Bulgarian German Spanish French Italian Japanese Polish Russian Chinese
08/10/2012
12/02/2009
29/11/2007
Language:
English
Version:
08/10/2012
File size:
800.4 KB
File name:
TI00420FEN_1312.pdf
TI Liquiphant FTL62 Density
with Density Computer FML621
Vibronic
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
30/09/2023
01/08/2022
30/11/2020
Language:
English
Version:
30/09/2023
File size:
1.4 MB
File name:
TI01553FEN_0423-00.pdf
PROFINET module ("PROFINET coupler") from V3.03.01
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
28/02/2020
Language:
English
Version:
28/02/2020
File size:
5.2 MB
File name:
BA02024REN_0120.pdf
BA Liquiphant FTL62 Density
Vibronic
EN
German Spanish French Italian Japanese Polish Portuguese Russian Slovak Chinese
30/09/2023
01/08/2022
30/11/2020
Language:
English
Version:
30/09/2023
File size:
927.2 KB
File name:
BA02047FEN_0423-00.pdf
BA Liquiphant FTL51B Density
Vibronic
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
30/09/2023
01/08/2022
28/06/2019
Language:
English
Version:
30/09/2023
File size:
986.6 KB
File name:
BA01974FEN_0323-00.pdf
BA Liquiphant FTL63 Density
Vibronic
EN
German Spanish French Italian Japanese Portuguese Russian Chinese
30/09/2023
Language:
English
Version:
30/09/2023
File size:
1.1 MB
File name:
BA02288FEN_0123-00.pdf
Liquiphant M Density
Operating instructions
Density Computer FML621 for Liquids.
EN
Bulgarian Czech German Spanish French Italian Japanese Polish Russian
25/03/2009
29/11/2007
Language:
English
Version:
25/03/2009
File size:
5 MB
File name:
BA335Fen_0309.pdf
DP slave module ("PROFIBUS coupler") from V2.01.00
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
03/02/2020
11/08/2009
29/11/2007
14/12/2006
28/09/2004
Language:
English
Version:
03/02/2020
File size:
683.7 KB
File name:
BA00154REN_1320.pdf
KA Liquiphant density FTL51B
Vibronic
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
30/09/2023
01/08/2022
28/06/2019
Language:
English
Version:
30/09/2023
File size:
788.7 KB
File name:
KA01430FEN_0323-00.pdf
KA Liquiphant FTL62 Density
Vibronic
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
30/09/2023
01/08/2022
30/11/2020
Language:
English
Version:
30/09/2023
File size:
747.9 KB
File name:
KA01478FEN_0323-00.pdf
CSA:
Language:
English
Version:
07/05/2007
File size:
128.4 KB
File name:
020500112.pdf
FM:
Language:
English
Version:
07/05/2007
File size:
132.8 KB
File name:
020500111.pdf
Flow and Energy Manager, Density controller
ATEX II (1)GD
Safety Instructions
Safety instructions for electrical apparatus certified for use in
EN
German French
28/03/2018
20/07/2010
29/11/2007
07/09/2006
20/04/2006
Language:
English
Version:
28/03/2018
File size:
1.1 MB
File name:
XA00038RA3_0818.pdf
Flow and Energy Manager, Density controller FML621
[Ex ia Ga] IIC
EN
Russian
27/06/2022
31/03/2021
Language:
English
Version:
27/06/2022
File size:
353.8 KB
File name:
XA02474REN_0222-00.pdf
Control Drawing CSA RMC621, RMM621, FML621
Flow and Energy manager RMC621, Application Manager RMM621 and Density
Language:
English
Version:
29/11/2007
File size:
195.7 KB
File name:
020500112.pdf
Control Drawing FM RMC621, RMM621, FML621
Flow and Energy Manager RMC621, Application Manager RMM621 and Density
Language:
English
Version:
04/04/2005
File size:
194.5 KB
File name:
020500111.pdf
Liquiphant Density and Density Computer FML621
Vibronic
Special Documentation
Vibronic
Language:
English
Version:
28/06/2019
File size:
147.5 KB
File name:
SD02442FEN_0119.pdf
Liquiphant FTL62 Density and Density Computer FML621
Vibronic
Language:
English
Version:
30/11/2020
File size:
313.1 KB
File name:
SD02606FEN_0120.pdf
Product family: Cerabar, Cerabar M, Cerabar S, Cerabar T, Ceraphant,
CERAPHANT T, DELTABAR, Deltabar M, DELTABARS, Deltapilot M,
DELTAPILOT
S, DOPPELSTABSONDE, Dreistabsonde, Einstabsonde, Levelflex, Liquicap M,
LIQUICAP T, LIQUIPHANT, LIQUIPHANT FAILSA
FE, LIQUIPHANT M, Liquiphant S,
LIQUIPHANT T, LIQUIPOINT, Liquipoint T, Micropilot, Micropilot S,
MINICAP, NIVECTOR, NIVOCOM
PACT, NIVOTESTER, Prosonic, Prosonic M,
PROSONIC P, PROSONIC S, Prosonic T, Solicap M, Solicap S, Soliphant M,
SOLIPHANT T,
SOLIWAVE, WATERPILOT
Declaration number: HE_00678_01.17
Language:
English
Version:
12/07/2022
File size:
185.9 KB
File name:
HE_00678_02.22_TSE freedom for EH products.pdf
Product family: Controller
Product root: FML621-
Language:
English
Version:
13/03/2017
File size:
160.9 KB
File name:
HE_00431_01.17 China RoHS FML621.pdf
Product family: Contactors/transmitters
Product root: FML621-, RMC621-, RMM621-
EN
German French
20/01/2016
Language:
English
Version:
20/01/2016
File size:
1.2 MB
File name:
EC_00167_01.16.pdf
Product family: Contactors/transmitters, Controller, Ecograph, Memo-Graph, Power supply, Power supply and barrier, Preline, Process
displays, Soliswitch
Product root: FML621-, FTE20-, FTE30-, FTE31-, OFTE20-, ORIA15-, ORIA45-, ORIA46-, ORMA42-, ORSG35-, ORSG45-, OSG40-, OSG45-, RA33-,
EN
German French
18/10/2022
Language:
English
Version:
18/10/2022
File size:
155.3 KB
File name:
EC_00569_03.22.pdf
Product family: Controller
Product root: FML621-
Language:
Russian
Version:
15/10/2020
File size:
79.1 KB
File name:
EAEC N RU D-DE.AG56.B.06828_20.pdf
Product family: Controller
Product root: FML621-
Language:
Russian
Version:
15/10/2020
File size:
79.9 KB
File name:
EAEC N RU D-DE.AG56.B.06832_20.pdf
Product family: Contactors/transmitters, Controller
Product root: FML621-, RMC621-, RMM621-
Language:
English
Version:
14/10/2010
File size:
21.9 KB
File name:
IECEx PTB 10.0030.pdf
Product family: Controller, Liquiphant M, Liquiphant S
Product root: FTL50-, FTL50H-, FTL51-, FTL51C-, FTL51H-, FTL70-, FTL71-
Language:
Russian
Version:
16/05/2022
File size:
5 MB
File name:
EAEC_RU_C-DE.AA87.B.00962_22.pdf
Product family: Contactors/transmitters
Product root: FML621-, RMC621-, RMM621-
Language:
English
Version:
20/04/2006
File size:
614.7 KB
File name:
CSA 1666653.pdf
Product family: Contactors/transmitters
Product root: FML621-, RMC621-, RMM621-
Language:
English
Version:
20/04/2006
File size:
129.9 KB
File name:
FM3021306 Rev.3.pdf
Product family: Contactors/transmitters
Product root: FML621-, RMC621-, RMM621-
Language:
English
Version:
24/04/2006
File size:
7.1 MB
File name:
PTB04ATEX2019.pdf
Product family: Controller, Liquiphant, Liquiphant M
Product root: FML621-, FTL50-, FTL50H-, FTL51-, FTL51B-, FTL51C-, FTL51H-, FTL62-
Language:
Russian
Version:
03/08/2009
File size:
2.7 MB
File name:
41030-09.pdf
Product family: Controller, Liquiphant M
Product root: FML621-, FTL50-, FTL50H-, FTL51-, FTL51C-, FTL51H-
Language:
Russian
Version:
30/05/2017
File size:
2.4 MB
File name:
Liquiphant M Density.pdf
Product family: Controller, Liquiphant, Liquiphant M
Product root: FML621-, FTL50-, FTL50H-, FTL51-, FTL51B-, FTL51C-, FTL51H-, FTL62-
Language:
Russian
Version:
15/10/2021
File size:
5.1 MB
File name:
1255,Liquiphant, Liquiphant M, FML62115.10.2021- 15.10.2026.pdf
Product family: Controller, Liquiphant, Liquiphant M
Product root: FML621-, FTL50-, FTL50H-, FTL51-, FTL51B-, FTL51C-, FTL51H-, FTL62-
Language:
Russian
Version:
07/02/2022
File size:
2.5 MB
File name:
Liquiphant Density.pdf
GSDML files for PROFINET coupler
RMx621 FML621
Language:
Language neutral
Version:
11/08/2022
File size:
6 KB
File name:
GSDML PROFINET RMx621 FML621.zip
Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
Front cover for version without display
Drawing number
Order code
1
FML621X-HA
Front cover for version with display
Drawing number
Order code
1
FML621X-HB
Housing cpl. without front, incl. 3x Blindeinschübe not for option Ethernet
Drawing number
Order code
2
FML621X-HC
Drawing number
Order code
3
FML621X-BA
Drawing number
Order code
4
FML621X-NA
Power supply 18-36VDC/20-28VAC
Drawing number
Order code
4
FML621X-NB
Power supply 90-253VAC, Ex version, Ex ia, IS FM, IS CSA
Drawing number
Order code
4
FML621X-NC
Power supply 18-36VDC/20-28VAC, Ex ver.
Drawing number
Order code
4
FML621X-ND
Drawing number
Order code
5
FML621X-DA
Front board,version without display,non Ex
Drawing number
Order code
5
FML621X-DB
Display + front cover, non Ex
Drawing number
Order code
5
FML621X-DC
Display cpl. Ex, Ex ia, IS FM, IS CSA
Drawing number
Order code
5
FML621X-DE
Front board, version without display, Ex Ex ia, IS FM, IS CSA
Drawing number
Order code
5
FML621X-DF
Display + front cover, Ex, Ex ia, IS FM, IS CSA
Drawing number
Order code
5
FML621X-DG
Extension card 2x U, I, TC Out. 2x0/4-20mA Imp., 2x Dig, 2x Rel. SPST
Drawing number
Order code
6
FML621A-CA
Extension card 2x U, I, TC, Ex approval Out. 2x0/4-20mA Imp., 2x Dig, 2x Rel. SPST
Drawing number
Order code
6
FML621A-CB
Extension card temperature, (Pt100/Pt500/Pt1000) cpl. incl. connector + fixing frame
Drawing number
Order code
6
FML621A-TA
Extension card temp. ATEX approval, (Pt100/500/1000) cpl. incl. terminals
Drawing number
Order code
6
FML621A-TB
Extension card universal, (PFM/pulse/analog/loop power) cpl. incl. connector + fixing frame
Drawing number
Order code
6
FML621A-UA
Extension card univ. ATEX approval, (PFM/pulse/analog/loop power) cpl. incl. terminal
Drawing number
Order code
6
FML621A-UB
Extension card digital, 6x dig. In, 6x Rel. Out, cpl. incl. terminal + fixing frame
Drawing number
Order code
6
FML621A-DA
Extension card digital ATEX approval, 6x dig. In, 6x Rel. Out, cpl. incl. terminal + fixing frame
Drawing number
Order code
6
FML621A-DB
Drawing number
Order code
7
51000780
Terminal plug-in 4pol.SMSTB2,5 91/92/53/
Drawing number
Order code
8
51004062
Terminal plug-in 4pol.SMSTB2,5 82/81/10/
Drawing number
Order code
10
51004063
Terminal plug-in 4pol.SMSTB2,5 83/81/110
Drawing number
Order code
9
51004064
Terminal plug-in 4pol.SMSTB2,5 104..101
Drawing number
Order code
11
51004065
Terminal plug-in 4pol.SMSTB2,5 134..131
Drawing number
Order code
12
51004066
Terminal RMx621/FML621, Input 1, RTD
Drawing number
Order code
16
51004907
Terminal RMx/FML621, Input 2, RTD
Drawing number
Order code
17
51004908
Terminal RMx/FML621, Input 2, 4-20mA
Drawing number
Order code
19
51004909
Terminal RMx/FML621, Input 1, 4-20mA
Drawing number
Order code
18
51004910
Terminal RMx/FML621 dig./open collecto
Drawing number
Order code
15
51004911
Terminal plug-in RMx/FML621 relay
Drawing number
Order code
13
51004912
Terminal Ex RMx/FML621, Input2, 4-20mA
Drawing number
Order code
19
51005953
Terminal Ex 4pol.SMSTB2,5 83/81/110/11
Drawing number
Order code
9
51005954
Terminal Ex 4pol.SMSTB2,5 82/81/10/11
Drawing number
Order code
10
51005957
Terminal Ex RMx/FML621, Input 1, RTD
Drawing number
Order code
16
51005958
Terminal Ex RMx/FML621, Input 1, 4-20mA
Drawing number
Order code
18
51005959
Terminal Ex RMx/FML621, Input 2, RTD
Drawing number
Order code
17
51005960
Connector 4pin RMM/FML621 dig.output III
Drawing number
Order code
15
51010519
Connector 4pin RMM/FML621dig. input gray
Drawing number
Order code
18
51010520
Connector 4pin RMM/FM621 dig. input blue
Drawing number
Order code
18
51010521
Connector 4p RMM/FML621dig.input II gray
Drawing number
Order code
19
51010522
Connector 4p RMM/FML621dig.input II blue
Drawing number
Order code
19
51010523
Connector 4pin RMM/FML621 dig. output II
Drawing number
Order code
14
51010525
Terminal plug-in4p RMM/FML UITC I non-Ex
Drawing number
Order code
18
71005487
Terminal plug-in 4p RMM/FML621 UITC I Ex
Drawing number
Order code
18
71005489
Terminal plug-in4p RMM/FML UITC II nonEx
Drawing number
Order code
19
71005491
Terminal plug-in4p RMM/FML621 UITC II Ex
Drawing number
Order code
19
71005492
Set, 10x fixing lever housing
Flat flexible cable display Ex RMx621
Drawing number
Order code
20
FML621C-
PROFIBUS DP slave module from software >=V2.01.00 for DIN rail
PROFINET device for DIN rail
Display- and operating keys: in offset housing for panel mounting 144x72mm
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