Download - Tdbfp Level Transmitter
SD198F/00/en
71000297
Functional safety manual
Liquicap M FMI51, FMI52Capacitance level measurement
For liquids with a 4...20 mA output signal
Application
Overfill protection or operating maximum/minimum
detection of all types of liquids in tanks to satisfy
particular safety system requirements to IEC 61508.
The measuring device fulfills the requirements
concerning
• Safety functions up to SIL 2
• Explosion protection due to intrinsic safety or
flameproof enclosure
• EMC to EN 61326 and NAMUR Recommendation
NE 21.
Your benefits
• Use for level monitoring up to SIL 2:
– independently assessed (Functional Assessment)
by exida.com as per IEC 61508
• Permanent automatic monitoring
• Continuous measurement
• Measurement is practically independent
of the product properties
• Measurement is also possible in the event
of foam or if the surface is moving
• Easy commissioning
Liquicap M
2
Table of contents
SIL declaration of conformity. . . . . . . . . . . . . . . . . . . . 3
Functional Assessment Report. . . . . . . . . . . . . . . . . . . 4
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Layout of the measuring system with Liquicap M . . . . 5
Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety function data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Supplementary device documentation . . . . . . . . . . . . . . . . . . . . . . 6
Settings and installation instructions . . . . . . . . . . . . . . 7
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Configuration instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device configuration with increased safety via the display . . . . . . . 8
Device configuration with increased safety via the ToF Tool . . . . . 9
Configuration instructions for the signal processing unit . . . . . . . 10
Response in operation and in event of failure . . . . . . 11
Operating life of electrical components . . . . . . . . . . . 11
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Recurrent function tests of the measuring system . . . 12
Proof test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
PFDavg depending on the selected maintenance interval . . . . . . . 13
FMEDA Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Liquicap M
3
SIL declaration of conformity
SIL06003a_en
Exam
ple
Liquicap M
4
Functional Assessment Report
Summary
Liquicap M
5
Introduction
! Note!
General information on functional safety (SIL) is provided at www.de.endress.com/SIL
and in the specialized brochure CP002Z "Safety in the Process Industry – reducing risks with SIL"
Layout of the measuring system with Liquicap M
Measuring system The measuring system's devices are displayed in the following diagram (example).
L00-FMI5xxxx-14-00-06-en-004
The safety-related signal of Liquicap M is the analog output signal 4...20 mA. All safety functions solely refer
to this output. In addition, Liquicap M communicates via HART and contains HART commands with additional
diagnostic information.
Liquicap M generates an analog signal (4...20 mA) that is proportional to the level. This signal is sent to a
downstream logic unit (e.g. PLC, limit signal transmitter, etc.) and there it is monitored for:
– Overshooting or undershooting a specified level value or level range
– The occurrence of a fault (e.g. sensor error, sensor cable disconnection or short-circuit, supply voltage
failure).
For fault monitoring, the logic unit must recognize HI alarms (≥ 21.0 mA) and Low alarms (≤ 3.6 mA).
While configuring the transmitter and performing maintenance work on Liquicap M, alternative measures must
be taken to ensure the process safety.
ENDRESS + HAENDRESS + HAUSERUSERRMA 422RMA 422
TTransmitter powerransmitter powersupply unit e.g. RMA422supply unit e.g. RMA422or RN221Nor RN221N(communication resistor(communication resistorincluded)included)
CommuboxCommuboxFXA195FXA195
Operating andOperating anddisplay moduledisplay module
- FieldCare- FieldCare-- TToFoF TTool - FieldTool - FieldTooloolPackagePackage
Logic UnitLogic Unit(e.g. PLC)(e.g. PLC)
Liquicap M
6
The safety-related characteristic values determined only apply to the following versions:
• FMI51 FMI51-######A##1#
FMI51-######B##1#
• FMI52 FMI52-######A##1#
FMI52-######B##1#
# = All standard device versions permitted
A = FEI50H + display
B = FEI50H
Valid FW version (firmware): version V01.03.00 or higher
Valid HW version (hardware): version V02.00 or higher
Safety function data The mandatory settings and data for the safety function are based on the description on Page 6 ff. and the
Appendix on Page 11.
The reaction time of the measuring system in the activated SIL mode is ≤ 0.5 s.
! Note!
MTTR is set at 8 hours.
Supplementary device
documentation
# Warning!
The technical limit values, safety instructions, installation instructions and configuration instructions must be
observed in accordance with the documentation supplied with the device. The following table provides an
overview of the associated documentation and the documentation's contents for Liquicap M.
Documentation Contents Comment
Technical Information
TI401F
– Technical data – The documentation is also available via the
Internet.
See www.de.endress.com.
Operating Instruction
BA298F
– Identification
– Installation
– Wiring
– Operation
– Commissioning, description
– Maintenance
– Configuration examples
– Parameter description
– Troubleshooting
– Appendix: menus illustrated
– The documentation is available in hard copy or
is provided on the ToF Tool CD.
The CD is supplied with every device.
– The documentation is also available via the
Internet.
See www.de.endress.com.
Safety instructions
XA327F, XA328F, XA346F
Control Drawings
ZD220F, ZD221F
Certificates
ZE265F
– Safety instructions, installation
instructions and operating
instructions for devices that are
suitable for use in Ex-areas or as
overfill protection (WHG
(German Water Resources Act)).
– Select the desired explosion protection
or approval by means of Feature 10
"Certificates" in the order code.
The corresponding documentation
is provided with the device.
Liquicap M
7
Settings and installation instructions
Installation instructions Please refer to the Operating Instructions (BA) for information on how to install Liquicap M correctly.
As the application conditions affect the safety of the measurement, the instructions in the Technical
Information (TI) and the Operating Instructions (BA) must be observed.
The operator must check the suitability of the measuring device for the specific application.
Additional information is available from the Endress+Hauser Sales Centers.
" Caution!
A minimum input voltage (terminal voltage) of 13.5 V must be ensured when using the devices in a safety
function.
Configuration instructions The following conditions are permitted for devices used in a safety function:
• Local operation via display operating unit
• Remote operation via PC:
– with "ToF Tool – FieldTool Package" (graphic operating program for Endress+Hauser devices),
version V3.06 or higher
– Fieldcare, version V2.08.00 or higher
Please refer to the appropriate Operating Instructions (BA) for further information on the settings.
" Caution!
Changes to the measuring system and the system's settings after commissioning can impair the protective
function!
Prior to the locking sequence, check the following after entering all the parameters
1. the safety function (e.g. by means of the "Level Simulation" parameter or by approaching the level)
2. whether the level value currently displayed corresponds to the actual level
Reference operating
conditions
The following data refer to a rod probe with an active probe length of 1 m:
• Temperature = +20 °C ±5 °C
• Pressure = 1013 mbar abs. ±20 mbar
• Humidity = 65 % ±20 %
• Medium = tap water (Conductivity ≥180 μS/cm)
Maximum measured error • Linearity: 2 % (of the full scale value)
• Reproducibility: 0.25 %
Device configuration When using the device in PCT protective functions, the device configuration must meet two requirements:
1. Confirmation concept
Proven independent checking of the safety-related parameters input
2. Locking concept
Device locked after configuration completed
The following method for device configuration is available:
– Device configuration with increased safety (SIL/WHG mode)
! Note!
• Following a reset, the device has to be switched off and then switched on again.
• Due to the increased configuration safety, the following section illustrates the use of the "Device
configuration with increased safety" method when using the device in PCT protective systems.
Liquicap M
8
Device configuration
with increased safety
via the display
When the display is connected, the keys on the electronic insert are deactivated!
Locking
The device must be locked following a specified locking sequence.
1. In the first control menu (SAX02), the setting for output damping and the response of the current output
in the event of an error must be checked and confirmed directly.
2. In the second control menu (SAX03), the calibration of the device must be checked against the calibration
data of the user (noted previously).
3. Then the device can be switched to the SIL/WHG mode in the control menu (SAX04) but only if
confirmation was positive in the two previous configuration menus.
L00-FMI5xxxx-19-05-xx-en-015
A key symbol on the display indicates that the device is locked.
If the electronics are replaced, the complete locking routine has to be performed again by the user.
! Note!
The SIL/WHG mode is retained after a power failure!
Unlocking
If Liquicap M has been calibrated as per the Operating Instructions (BA),
security locking must be activated.
To do so, select the "Security settings" menu item from the main menu
(CX001).
L00-FMI5xxxx-19-05-xx-en-014
↵↑↑
CX001CX001main menumain menu
basic setupbasic setupsafety settingssafety settingslinearisationlinearisationoutputoutputdevice propertiesdevice properties
SAX02SAX02 SAX03SAX03 SAX04SAX04
↵↑ ↑ ↵↑ ↑ ↵↑ ↑
1.1. 2.2. 3.3.
safety settingssafety settings safety settingssafety settings safety settingssafety settings
operating mode: stoperating mode: standardandardoutput damping: 1.0soutput damping: 1.0soutput: maxoutput: maxpparameter ok.: yesarameter ok.: yes
cap. empty calibration: 0.00 pFcap. empty calibration: 0.00 pFvalue emptyvalue empty 0 %0 %cap. fullcap. full 104.00 pF104.00 pFvalue fullvalue full 100 %100 %pparameter ok.: yesarameter ok.: yes
calibration:calibration:calibration:calibration:
calibration:calibration:
operating mode: SIL/WHGoperating mode: SIL/WHGSILSIL operating mode: lockedoperating mode: lockedststatus: SIL/WHG lockedatus: SIL/WHG locked
A password is required for unlocking.
The release code (7452) must be entered directly in the
SAX04 menu "SIL operating mode".
L00-FMI5xxxx-19-05-xx-en-016
SAX04SAX04
↵↑ ↑
safety settingssafety settings
operating mode: SIL/WHGoperating mode: SIL/WHGSILSIL operating mode: lockedoperating mode: lockedststatus: SIL/WHG lockedatus: SIL/WHG locked
Liquicap M
9
Device configuration
with increased safety
via the ToF Tool
The configuration routine and locking process is the same as when making the settings via the display.
All relevant parameters are displayed on a screen page here however. As with the display, these also have to
be confirmed.
L00-FMIxxxxx-20-00-00-en-006
! Note!
When reading back the locking, the serial number on the operating tool must be checked against the serial
number of the device in question.
Liquicap M
10
L00-FMIxxxxx-20-00-00-en-002
L00-FMIxxxxx-20-00-00-en-004
Configuration instructions
for the signal processing unit
Configuration instructions when using the level sensor as the continuous measuring system
When using the level sensor as the continuous measuring system, the limit value determined appropriately
must be entered at the downstream limit monitor (logic unit).
All calibration and configuration work must be carried out as specified in the associated Operating Instructions.
Liquicap M
11
Response in operation and in event of failure
The behavior during operation and in the event of errors is described in the Operating Instruction BA298F.
Operating life of electrical components
In accordance with IEC 61508-2, experience shows that the useful operating life of electrical components is
between 8 and 12 years.
Repair
If a SIL-type Endress+Hauser device which was used in a protective function fails, the "Declaration of
contamination and cleaning" must be enclosed with a note specifying "Use as SIL device in a protective system"
when returning the defective device.
Liquicap M
12
Recurrent function tests of the measuring system
Safety functions must be checked and inspected at appropriate intervals.
We recommend you carry out the inspection at least once a year. The onus is on the owner-operator to select
the type of inspection and the time intervals in the specified period.
The inspection must be carried out in such a way that it is proven that the safety system (see Page 11,
section "PFDavg depending on the maintenance interval selected") functions perfectly in interaction with all the
components.
The following section describes the repeat testing procedure to uncover dangerous undetected device failures.
Proof test This test detects approx. 45 % of the possible dangerous undetected device failures.
L00-FMI5xxxx-05-06-xx-en-001
1. Check whether the level value displayed corresponds to the actual level.
2. Ensure that the level does not change while the proof test is being performed.
3. Unlocking (see Page 7, "Unlocking" section)
4. Activate the proof test either on the display or
using the operating tool.
5. The current output must be monitored using a current measuring
device (see the corresponding diagram).
6. The proof test lasts approx. 30 s and cannot be interrupted.
The current output returns to the current level value.
7. Locking (see Page 7, "Locking" section)
8. Once the proof test has been carried out, the results must be
documented and stored in a suitable manner.
L00-FMI5xxxx-19-05-xx-en-017
SAX06SAX06
↵↑↑
proof testproof test
proof test: offproof test: off
II[mA][mA]
22.022.0
20.020.0
16.816.8
13.613.6
10.410.4
7.27.2
4.04.0
LevelLevel[%][%]
120120
100100
8080
6060
4040
2020
00
Measured valueMeasured value
approx 30 sapprox 30 s
Liquicap M
13
Appendix
The specific safety-related characteristic values can be found in the Declaration of Conformity on Page 3.
PFDavg depending on the
selected maintenance interval
L00-FMI5xxxx-05-06-xx-en-003
# Warning!
During safety-related use of Liquicap M, the following sources of error must be ruled out:
• Solid and/or heavy build-up on the probe rod
• Corrosion or diffusion in the context of medium compatibility with regard to rod/rope material and coating
0.0 2.0 4.0 6.0 8.0 10.00.0 2.0 4.0 6.0 8.0 10.0
3.00E-033.00E-03
2.50E-032.50E-03
2.00E-032.00E-03
1.00E-031.00E-03
5.00E-045.00E-04
0.00E+000.00E+00
1.50E-031.50E-03
3.50E-033.50E-03
PFDaPFDavgvgP
FD
PF
Daa v
gvg
TTest interest intervvalal[y[yearears]s]
1oo1D structure1oo1D structure
Liquicap M
14
FMEDA Report
R5-ManagementSummary
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larm
ou
tpu
t cu
rre
nt
3,6
mA
or
21
mA
. F
or
this
co
nfig
ura
tio
n t
he
fo
llow
ing
ta
ble
s s
ho
w
ho
w t
he
ab
ove
sta
ted
re
qu
ire
me
nts
are
fu
lfill
ed
.
Th
e f
ollo
win
g f
ailu
re r
ate
s d
o n
ot
inclu
de
fa
ilure
s r
esu
ltin
g f
rom
in
co
rre
ct
use
of
the
tra
nsm
itte
r,
in
pa
rtic
ula
r h
um
idity
en
teri
ng
th
rou
gh
in
co
mp
lete
ly
clo
se
d
ho
usin
gs
or
ina
de
qu
ate
ca
ble
fe
ed
ing
th
rou
gh
th
e P
G in
lets
.
1 T
ype B
com
ponent:
“Com
ple
x”
com
ponent
(usin
g m
icro
contr
olle
rs or
pro
gra
mm
able
lo
gic
); fo
r deta
ils see
7.4
.3.1
.3 o
f IE
C 6
1508-2
.
The d
ocum
ent
was p
repare
d u
sin
g b
est
effort
. T
he a
uth
ors
make n
o w
arr
anty
of
any k
ind a
nd s
hall
not
be lia
ble
in
any e
vent
for
incid
enta
l or
consequential dam
ages in c
onnection w
ith t
he a
pplic
ation o
f th
e d
ocum
ent.
© A
ll rights
on t
he f
orm
at
of
this
technic
al re
port
reserv
ed.
Failu
re M
od
es, E
ffects
an
d D
iag
no
sti
c A
naly
sis
Pro
ject:
Liq
uic
ap
M F
MI
51
/52
with
4..
20
mA
ou
tpu
t F
EI5
0H
T
ran
sm
itte
r fo
r co
ntin
uo
us c
ap
acita
nce
le
ve
l m
ea
su
rem
en
t A
pp
lica
tio
ns w
ith
le
ve
l lim
it d
ete
ctio
n (
MIN
/ M
AX
de
tectio
n)
Cu
sto
me
r:
En
dre
ss+
Ha
use
r G
mb
H+
Co
. K
G
Ma
ulb
urg
G
erm
an
y
Co
ntr
act
No
.: E
+H
03
/03
-22
R
ep
ort
No
.: E
+H
03
/03
-22
R0
27
Ve
rsio
n V
1,
Re
vis
ion
R5
, F
eb
rua
ry 2
00
7
Ste
ph
an
Asch
en
bre
nn
er
Liquicap M
15
R5-ManagementSummary
R5-ManagementSummary
© e
xid
a.c
om
Gm
bH
e+
h 0
3-0
3-2
2 r
027 v
1 r
5.d
oc,
Febru
ary
1,
2007
Ste
phan A
schenbre
nner
Page 4
of
4
It i
s i
mp
ort
an
t to
re
aliz
e t
ha
t th
e “
no
eff
ect”
fa
ilure
s a
nd
th
e “
an
nu
ncia
tio
n”
failu
res a
re in
clu
de
d
in t
he
“sa
fe u
nd
ete
cte
d”
failu
re c
ate
go
ry a
cco
rdin
g t
o I
EC
61
50
8.
No
te t
ha
t th
ese
fa
ilure
s o
n its
o
wn
w
ill n
ot
aff
ect
syste
m re
liab
ility
o
r sa
fety
, a
nd
sh
ou
ld n
ot
be
in
clu
de
d in
sp
uri
ou
s tr
ip
ca
lcu
latio
ns.
Th
e fa
ilure
ra
tes a
re va
lid fo
r th
e u
se
ful
life
o
f L
iqu
ica
p M
FM
I 5
1/5
2 w
ith
4..
20
mA
ou
tpu
t F
EI5
0H
(se
e A
pp
en
dix
3).
© e
xid
a.c
om
Gm
bH
e+
h 0
3-0
3-2
2 r
027 v
1 r
5.d
oc,
Febru
ary
1,
2007
Ste
phan A
schenbre
nner
Page 3
of
4
Th
e lis
ted
fa
ilure
ra
tes a
re va
lid fo
r o
pe
ratin
g str
ess co
nd
itio
ns ty
pic
al
of
an
in
du
str
ial
fie
ld
en
vir
on
me
nt
sim
ilar
to I
EC
60
65
4-1
cla
ss C
(sh
elte
red
lo
ca
tio
n)
with
an
ave
rag
e t
em
pe
ratu
re
ove
r a
lo
ng
pe
rio
d o
f tim
e o
f 4
0ºC
. F
or
a h
igh
er
ave
rag
e t
em
pe
ratu
re o
f 6
0°C
, th
e f
ailu
re r
ate
s
sh
ou
ld b
e m
ultip
lied
with
an
exp
eri
en
ce
ba
se
d f
acto
r o
f 2
,5.
A s
imila
r m
ultip
lier
sh
ou
ld b
e u
se
d
if f
req
ue
nt
tem
pe
ratu
re f
luctu
atio
n m
ust
be
assu
me
d.
Tab
le 1
: S
um
mary
– F
ailu
re r
ate
s
Fa
ilu
re c
ate
go
ry
Fa
ilu
re r
ate
s (
in F
IT)
Fa
il D
an
ge
rou
s D
ete
cte
d
69
5
F
ail
de
tecte
d (
int.
dia
g.)
6
28
F
ail
low
(d
ete
cte
d b
y t
he
lo
gic
so
lve
r)
39
F
ail
Hig
h (
de
tecte
d b
y t
he
lo
gic
so
lve
r)
28
Fa
il D
an
ge
rou
s U
nd
ete
cte
d
75
No
Eff
ect
11
6
An
nu
ncia
tio
n U
nd
ete
cte
d
2
No
t p
art
1
11
Ta
ble
2 F
ail
ure
ra
tes
ac
co
rdin
g t
o IE
C 6
15
08
sd
su
2
dd
du
SF
F
DC
S 3
D
CD 3
0 F
IT
11
8 F
IT
69
5 F
IT
75
FIT
9
1%
0
%
90
%
Tab
le 3
: S
um
mary
– P
FD
AV
G v
alu
es / P
FH
va
lues
T
[Pro
of]
= 1
ye
ar
T[P
roo
f] =
5 y
ea
rs
T[P
roo
f] =
10
ye
ars
PF
H =
7,5
1E
-08
1/h
4
PF
DA
VG =
3,2
9E
-04
P
FD
AV
G =
1,6
4E
-03
P
FD
AV
G =
3,2
8E
-03
Th
e b
oxe
s m
ark
ed
in
gre
en
(
)
me
an
th
at
the
ca
lcu
late
d P
FD
AV
G /
PF
H v
alu
es a
re w
ith
in t
he
a
llow
ed
ra
ng
e f
or
SIL
2 a
cco
rdin
g t
o t
ab
le 2
/ 3
of
IEC
61
50
8-1
an
d d
o f
ulfill
th
e r
eq
uir
em
en
t to
n
ot
cla
im
mo
re
tha
n
35
%
of
this
ra
ng
e,
i.e
. to
b
e
be
tte
r th
an
o
r e
qu
al
to
3,5
0E
-03
o
r 3
,50
E-0
7 1
/h,
resp
ective
ly.
Be
ca
use
th
e
Sa
fe
Fa
ilure
F
ractio
n
(SF
F)
is
ab
ove
9
0%
, a
lso
th
e
arc
hite
ctu
ral
co
nstr
ain
ts
req
uir
em
en
ts o
f ta
ble
3 o
f IE
C 6
15
08
-2 f
or
Typ
e B
su
bsyste
ms w
ith
a H
ard
wa
re F
au
lt T
ole
ran
ce
(H
FT
) o
f 0
are
fu
lfill
ed
.
A u
se
r o
f th
e t
ran
sm
itte
r fo
r co
ntin
uo
us c
ap
acita
nce
le
ve
l m
ea
su
rem
en
t L
iqu
ica
p M
FM
I 5
1/5
2
with
4..
20
mA
ou
tpu
t F
EI5
0H
ca
n u
tiliz
e t
he
se
fa
ilure
ra
tes i
n a
pro
ba
bili
stic m
od
el
of
a s
afe
ty
instr
um
en
ted
fu
nctio
n (
SIF
) to
de
term
ine
su
ita
bili
ty i
n p
art
fo
r sa
fety
in
str
um
en
ted
syste
m (
SIS
) u
sa
ge
in
a
p
art
icu
lar
sa
fety
in
teg
rity
le
ve
l (S
IL).
A
fu
ll ta
ble
o
f fa
ilure
ra
tes is
p
rese
nte
d in
se
ctio
n 5
.2 a
lon
g w
ith
all
assu
mp
tio
ns.
2 N
ote
that
the S
U c
ate
gory
inclu
des f
ailu
res t
hat
do n
ot
cause a
spurious t
rip
3 D
C m
eans t
he d
iagnostic c
overa
ge (
safe
or
dangero
us).
4 T
he P
FH
valu
e i
s b
ased o
n a
fault d
ete
ction a
nd r
eaction t
ime o
f 40 m
inute
s.
This
als
o r
equires t
hat
a c
onnecte
d
logic
solv
er
can d
ete
ct
“fail
low
” and/o
r “f
ail
hig
h”
failu
res w
ithin
a t
ime t
hat
allo
ws t
o r
eact
within
the p
rocess s
afe
ty
tim
e.
Liquicap M
Instruments International
Endress+HauserInstruments International AGKaegenstrasse 24153 ReinachSwitzerland
Tel. +41 61 715 81 00Fax +41 61 715 25 [email protected]
SD198F/00/en/10.07
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