Pepperl+Fuchs LUC-M Series, LUC-M10, LUC-M20, LUC-M40, LUC-M30 Function Manual
BA 240O/98/en/01.10
52027993
185572 01/10 01
Ultrasonic Level Sensor
LUC-M** with HART/4 mA ... 20 mA and
PROFIBUS PA
Description of instrument functions
LUC-M10
LUC-M40
LUC-M20
LUC-M30
Valid as of software version
V 01.04.00 (amplifier)
V 01.04.00 (communication)
LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
E
+
-
+
E
+
-
F
L
D
E
E
E
-
... ...
KA 183O/98/a2/04.05
52027994
185587 04/05 00
BD
... ...
100%
0%
100 (HART)
2457 (PA)
333 (HART)
33333 (PA)
... ...
... ...
LUC-M** - Quick setup
- dome
ceiling
- horizontal
cyl.
- bypass
...
-
unknown
-
liquid
- > 4 mm
- < 4 mm
- standard
- calm
surface
agitator
- add.
...
input E
(see sketch)
input F
(see sketch)
- ok
- too small
- too big
- unknown
- manual
(see sketch)
000
measured value
group
selection
00
basic setup
01
saf
ety settings
0C
system
parameter
0E
envelope curve
04
linearisation
05
e
xtended calibr.
06
output (HART, FF)
profibus param.(PA)
0A
diagnostics
0A0
present
error
002
tank shape
004
process
cond.
005
empty
calibr.
006
full
calibr.
008
dist./
meas. value
051
check
distance
003
medium
property
052
053
008
dist./
meas. value
0E1
plot settings
0E2
recording
curve
0A1
previous
error
0A4
unlock
parameter
03
temperature
09
display
092
language
BD: blocking distance
0A3
reset
0C0
tag no.
059
blocking
distance
BD is
displayed
(see sketch)
Contrast: + or +
range of
mapping
start
mapping
confirm
or specify
range
suggestion
displayed
D and L are
Short instructions
Short instructions
Contents of the operating instructions
This operating instrucitons contain all functions of the LUC-M** operating menu. All
types of devices and all communication variants (HART and PROFIBUS PA) are considered.
Information on mounting, wiring, trouble shooting and maintenance can be found in the
following documents which are supplied together with the instrument:
• BA 237O/98/en (HART)
• BA 238O/98/en (PROFIBUS PA)
52027994
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Table of Contents
Short instructions . . . . . . . . . . . . . . . . . . . . . 2
1 Notes on use . . . . . . . . . . . . . . . . . . . . . 5
1.1 Using the table of contents to locate a
function description . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Using the graphic of the function menu to
locate a function description . . . . . . . . . . . . . . . . . . 5
1.3 Using the index of the function menu to
locate a function description . . . . . . . . . . . . . . . . . . 5
1.4 General structure of the operating menu. . . . . . . . . 6
1.5 Display and operating elements . . . . . . . . . . . . . . . 7
1.6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Function menu LUC-M** . . . . . . . . . . . 11
3 Function group "basic setup" (00). . . 13
3.1 Function "measured value" (000) . . . . . . . . . . . . . 13
3.2 Function "tank shape" (002) . . . . . . . . . . . . . . . . . 13
3.3 Function "medium property" (003). . . . . . . . . . . . . 14
3.4 Function "process cond." (004) . . . . . . . . . . . . . . . 14
3.5 Function "empty calibr." (005) . . . . . . . . . . . . . . . . 16
3.6 Function "blocking dist." (059). . . . . . . . . . . . . . . . 16
3.7 Function "full calibr." (006). . . . . . . . . . . . . . . . . . . 17
3.8 Display (008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.9 Function "check distance" (051) . . . . . . . . . . . . . . 18
3.10 Function "range of mapping" (052) . . . . . . . . . . . . 19
3.11 Funktion "start mapping" (053) . . . . . . . . . . . . . . . 19
3.12 Display (008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Function group
"safety settings" (01). . . . . . . . . . . . . . 21
4.1 Function "output on alarm" (010). . . . . . . . . . . . . . 21
4.2 Function "output on alarm" (011), HART only . . . . 22
4.3 Function "outp. echo loss" (012) . . . . . . . . . . . . . . 23
4.4 Function "ramp %span/min" (013). . . . . . . . . . . . . 24
4.5 Function "delay time" (014) . . . . . . . . . . . . . . . . . . 24
4.6 Function "safety distance" (015) . . . . . . . . . . . . . . 24
4.7 Function "in safety dist." (016). . . . . . . . . . . . . . . . 25
4.8 Function "ackn. alarm" (017) . . . . . . . . . . . . . . . . . 26
5 Function group "temperature" (03) . . 27
5.1 Function "measured temp." (030) . . . . . . . . . . . . . 27
5.2 Function "max. temp. limit" (031). . . . . . . . . . . . . . 27
5.3 Function "max. meas. temp." (032) . . . . . . . . . . . . 27
5.4 Function "react high temp." (033) . . . . . . . . . . . . . 28
5.5 Function "defect temp. sens." (034) . . . . . . . . . . . 28
6 Function group "linearisation" (04) . . 29
6.1 Function "level/ullage" (040) . . . . . . . . . . . . . . . . . 29
6.2 Function "linearisation" (041). . . . . . . . . . . . . . . . . 30
6.3 Function "customer unit" (042) . . . . . . . . . . . . . . . 33
6.4 Function "table no." (043) . . . . . . . . . . . . . . . . . . . 34
6.5 Function "input level" (044) . . . . . . . . . . . . . . . . . . 34
6.6 Function "input volume" (045) . . . . . . . . . . . . . . . . 35
6.7 Function "max. scale" (046). . . . . . . . . . . . . . . . . . 35
6.8 Function "diameter vessel" (047). . . . . . . . . . . . . . 35
7 Function group
"extended calibr." (05). . . . . . . . . . . . . 36
7.1 Function "selection" (050). . . . . . . . . . . . . . . . . . . . 36
7.2 Function "check distance" (051). . . . . . . . . . . . . . . 36
7.3 Function "range of mapping" (052). . . . . . . . . . . . . 37
7.4 Function "start mapping" (053). . . . . . . . . . . . . . . . 37
7.5 Function "pres. map dist." (054) . . . . . . . . . . . . . . . 38
7.6 Function "cust. tank map" (055) . . . . . . . . . . . . . . . 38
7.7 Function "echo quality" (056) . . . . . . . . . . . . . . . . . 39
7.8 Function "offset" (057) . . . . . . . . . . . . . . . . . . . . . . 39
7.9 Function "output damping" (058) . . . . . . . . . . . . . . 39
7.10 Function "blocking dist." (059) . . . . . . . . . . . . . . . . 40
8 Function group "output" (06) and
"profibus param." (06) . . . . . . . . . . . . . 41
8.1 Function "commun. address" (060), HART only. . . 41
8.2 Function "instrument addr." (060),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 41
8.3 Function "no. of preambels" (061), HART only. . . . 41
8.4 Function "ident number" (061),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 42
8.5 Function "thres. main val." (062), HART only. . . . . 42
8.6 Function "set unit to bus" (062),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 43
8.7 Function "curr. output mode" (063),
HART only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.8 Function "out value" (063),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 44
8.9 Function "fixed cur. value" (064), HART only . . . . . 44
8.10 Function "out status" (064),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 44
8.11 Function "simulation" (065). . . . . . . . . . . . . . . . . . . 45
8.12 Function "simulation value" (066). . . . . . . . . . . . . . 46
8.13 Function "output current" (067), HART only . . . . . . 46
8.14 Function "2nd cyclic value" (067),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 46
8.15 Function "4mA value" (068), HART only . . . . . . . . 46
8.16 Function "select v0h0" (068),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 47
8.17 Function "20mA value" (069), HART only . . . . . . . 47
8.18 Function "display value" (069),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 47
9 Function group
"envelope curve" (0E) . . . . . . . . . . . . . 48
9.1 Function "plot settings" (0E1) . . . . . . . . . . . . . . . . . 48
9.2 Function "recording curve" (0E2) . . . . . . . . . . . . . . 48
9.3 Function "envelope curve display" (0E3) . . . . . . . . 49
10 Function group "display" (09) . . . . . . 51
10.1 Function "language" (092) . . . . . . . . . . . . . . . . . . . 51
10.2 Function "back to home" (093) . . . . . . . . . . . . . . . . 51
10.3 Function "format display" (094) . . . . . . . . . . . . . . . 52
10.4 Function "no.of decimals" (095) . . . . . . . . . . . . . . . 52
10.5 Function "sep. character" (096) . . . . . . . . . . . . . . . 52
10.6 Function "display test" (097). . . . . . . . . . . . . . . . . . 52
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Table of Contents
11 Function group "diagnostics" (0A) . . . 53
11.1 Function "present error" (0A0) . . . . . . . . . . . . . . . 53
11.2 Function "previous error" (0A1) . . . . . . . . . . . . . . 53
11.3 Function "clear last error" (0A2) . . . . . . . . . . . . . . 53
11.4 Function "reset" (0A3). . . . . . . . . . . . . . . . . . . . . . 54
11.5 Function "unlock parameter" (0A4). . . . . . . . . . . . 55
11.6 Function "measured dist." (0A5) . . . . . . . . . . . . . . 56
11.7 Function "measured level" (0A6) . . . . . . . . . . . . . 57
11.8 Function "detection window" (0A7) . . . . . . . . . . . . 57
11.9 Function "application par." (0A8) . . . . . . . . . . . . . 58
12 Function group
"system parameters" (0C) . . . . . . . . . . 59
12.1 Function "tag no." (0C0) . . . . . . . . . . . . . . . . . . . . 59
12.2 Function "Profile Version" (0C1),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . 59
12.3 Function "protocol+sw-no." (0C2). . . . . . . . . . . . . 59
12.4 Function "serial no." (0C4) . . . . . . . . . . . . . . . . . . 60
12.5 Function "distance unit" (0C5) . . . . . . . . . . . . . . . 60
12.6 Function "temperature unit" (0C6) . . . . . . . . . . . . 61
12.7 Function "download mode" (0C8) . . . . . . . . . . . . . 61
13 Function group "service" (0D). . . . . . . 61
14 Signal evaluation. . . . . . . . . . . . . . . . . . 62
14.1 Envelope curve . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
14.2 Interference echo suppression (tank mapping) . . . 63
14.3 Floating Average Curve (FAC) . . . . . . . . . . . . . . . 64
15 Trouble shooting. . . . . . . . . . . . . . . . . . 65
15.1 System error messages. . . . . . . . . . . . . . . . . . . . . 65
15.2 Application errors. . . . . . . . . . . . . . . . . . . . . . . . . . 67
Index function menu . . . . . . . . . . . . . . . . . . 73
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Notes on use
1 Notes on use
You have various options for accessing the descriptions of instrument functions or how
to enter parameters.
1.1 Using the table of contents to locate a function description
All the functions are listed in the table of contents sorted by function group (e. g.
"basic setup", "safety settings", etc.). You can access a more detailed description of a
function by using a page reference.
The table of contents is on page 3.
1.2 Using the graphic of the function menu to locate a function description
This guides you step by step from the highest level, the function groups, to the exact
function description you require.
All the available function groups and instrument functions are listed in the table
(see page 11). Select your required function group or function. You can access an exact
description of the function group or function by using a page reference.
1.3 Using the index of the function menu to locate a function description
To simplify navigation within the function menu, each function has a position which is
shown in the display. You can access each function via a page reference in the function
menu index (see page 73) which lists all the function names alphabetically and
numerically.
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Notes on use
1.4 General structure of the operating menu
The operating menu is made up of two levels:
• Function groups (00, 01, 03, …, 0C, 0E):
The individual operating Selection of the instrument are split up roughly into different
function groups. The function groups that are available include, e. g.: "basic
setup", "safety settings", "output", "display", etc.
• Functions (001, 002, 003, …, 0E2, 0E3):
Each function group consists of one or more functions. The functions perform the
actual operation or parameterisation of the instrument. Numerical values can be
entered here and parameters can be selected and saved. The available functions
of the "basic setup" (00) function group include, e. g.: "tank shape" (002),
"medium property" (003), "process cond." (004), "empty calibr." (005), etc.
If, for example, the application of the instrument is to be changed, carry out the following
procedure:
1. Select the "basic setup" (00) function group.
2. Select the "tank shape" (002) function (where the existing tank shape is selected).
1.4.1 Identifying the functions
For simple orientation within the function menus (see page 11 ff.), for each function a
position is shown on the display.
function group
The first two digits identify the function group:
• basic setup 00
• safety settings 01
• temperature 03
…
The third digit numbers the individual functions within the function group:
• basic setup 00 • tank shape 002
• medium property 003
• process cond. 004
…
Hereafter the position is always given in brackets (e. g. "tank shape" (002)) after the
described function.
function
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Bargraph
Selection list
Help texts
Envelope
curve
Label
Label
Position in menu
Position in menu
Value
Unit
Symbol
Measured value
display
Group selection
Function with
free parameter
Envelope curve
display
Notes on use
1.5 Display and operating elements
ENDRES
MI
Ord
CR
S+H
e
r
Co
O
S
A
d
er
PI
e
.
:
-No
USE
L
O
.:
T
R
I
I
Messberei
Measur
c
h
ing
r
a
nge
U 16...
m
ax.
4..
3
2
6
0
.2
V DC
m
0 m
A
IP
6
5
T
>
A
7
0
C
:
t
>85
C
Made in Germany Maulburg
LCD
(Liquid crystal display)
–
+
E
Symbols
Snap-fit
1.5.1 Display
Liquid crystal display (LCD):
Four lines with 20 characters each. Display contrast adjustable through key
combination.
3 keys
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Notes on use
1.5.2 Display symbols
The following table describes the symbols that appear on the liquid crystal display:
Symbol Meaning
ALARM_SYMBOL
This alarm symbol appears when the instrument is in an alarm state. If the symbol flashes, this
indicates a warning.
LOCK_SYMBOL
This lock symbol appears when the instrument is locked, i. e. if no input is possible.
COM_SYMBOL
This communication symbol appears when a data transmission via e. g. HART or
PROFIBUS PA is in progress.
1.5.3 Key assignment
The operating elements are located inside the housing and are accessible for operation
by opening the lid of the housing.
Function of the keys
Key(s) Meaning
O
S
X
and
O
and
S
and S and
O
or
V
or W
or
Z
F
F
or
F
Navigate upwards in the selection list
Edit numeric value within a function
Navigate downwards in the selection list
Edit numeric value within a function
Navigate to the left within a function group
Navigate to the right within a function group, confirmation
Contrast settings of the LCD
Hardware lock/unlock
After a hardware lock, an operation of the instrument via display or
communication is not possible!
F
The hardware can only be unlocked via the display. An unlock parameter must be
entered to do so.
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
E
+
–
X
X
X
X
S
SS
O
OO
FF
>3 s
F
...
2x
...
...
Notes on use
1.5.4 Operation using the on-site display LUC-Z15
1. Change from Measured Value Display to Group Selection by pressing F.
2. Press S or O to select the required Function Group and confirm by pressing F.
The active selection is marked by a in front of the menu text.
3. Activate Edit mode with O or S .
Selection menus
a) Select the required Parameter in selected function with S or O .
b) F confirms selection → appears in front of the selected parameter.
c) F confirms the edited value → system quits edit mode.
d) O and S (= Q) interrupts selection → system quits edit mode.
Typing in numerals and text
a) Press O or S to edit the first character of the numeral/text.
b) F positions the cursor at the next character → continue with a) until you have
completed your input.
c) If a ↵ symbol appears at the cursor, press F to accept the value entered →
system quits edit mode.
d) If a ← symbol appears at the cursor, press F to return to the previous character
(e. g. for correction of entries).
e) O and S (= Q)
4. Press F to select the next function.
5. Press O and S (= Q) once → return to previous function.
Press O and S (= Q) twice → return to Group Selection.
6. Press O and S (= Q) to return to Measured value display.
interrupts selection; → system quits edit mode.
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Notes on use
1.6 Commissioning
1.6.1 Switching on the measuring device
When the instrument is switched on for the first time, the following messages appear on
the display:
–
+
E
After 5 s, the following message appears
After 5 s or after you have pressed F the
following message appears
Select the language
(this message appears the first time the
instrument is switched on)
Select the basic unit
(this message appears the first time the
instrument is switched on)
The current measured value is displayed
After F is pressed, you reach the group
selection.
This selection enables you to perform the basic
setup
10
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function menu LUC-M**
2 Function menu LUC-M**
Function group Function Description
basic setup 00
(see page 13)
measured value 000
tank shape 002
medium property 003
process cond. 004
empty calibr. 005
blocking dist. 059
full calibr. 006
display 008
check distance 051
range of mapping 052
start mapping 053
display 008
page 13
page 13
page 14
page 14
page 16
page 16
page 17
page 17
page 18
page 19
page 19
page 20
safety settings 01
(see page 21)
temperature 03
(see page 27)
linearisation 04
(see page 29)
output on alarm 010
output on alarm (HART only) 011
outp. echo loss 012
ramp %span/min 013
delay time 014
safety distance 015
in safety dist. 016
ackn. alarm 017
measured temp. 030
max. temp. limit 031
max. meas. temp. 032
react high temp. 033
defect temp. sens. 034
level/ullage 040
linearisation 041
customer unit 042
table no. 043
input level 044
input volume 045
max. scale 046
diameter vessel 047
page 21
page 22
page 23
page 24
page 24
page 24
page 25
page 26
page 27
page 27
page 27
page 28
page 28
page 29
page 30
page 33
page 34
page 34
page 35
page 35
page 35
extended calibr. 05
(see page 36)
DOCT-0843A 01/2010 185572
selection 050
check distance 051
range of mapping 052
start mapping 053
pres. map dist. 054
cust. tank map 055
echo quality 056
offset 057
output damping 058
blocking dist. 059
page 36
page 36
page 37
page 37
page 38
page 38
page 39
page 39
page 39
page 40
11
LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function menu LUC-M**
Function group Function Description
output 06
profibus param. 06
PROFIBUS PA only
(see page 41)
commun. address (HART only) 060
instrument addr. (PROFIBUS PA only) 060
no. of preambels (HART only) 061
ident number (PROFIBUS PA only) 061
thres. main val. (HART only) 062
set unit to bus (PROFIBUS PA only) 062
current output mode (HART only) 063
out value (PROFIBUS PA only) 063
fixed cur. value (HART only) 064
out status (PROFIBUS PA only) 064
simulation 065
simulation value 066
output current (HART only) 067
2nd cyclic value (PROFIBUS PA only) 067
4mA value (HART only) 068
select v0h0 (PROFIBUS PA only) 068
20mA value (HART only) 069
display value (PROFIBUS PA only) 069
page 41
page 41
page 41
page 42
page 42
page 43
page 43
page 44
page 44
page 44
page 45
page 46
page 46
page 46
page 46
page 47
page 47
page 47
envelope curve 0E
(see page 48)
display 09
(see page 51)
diagnostics 0A
(see page 53)
system parameter 0C
(see page 59)
plot settings 0E1
recording curve 0E2
envelope curve display 0E3
language 092
back to home 093
format display 094
no.of decimals 095
sep. character 096
display test 097
present error 0A0
previous error 0A1
clear last error 0A2
reset 0A3
unlock parameter 0A4
measured dist. 0A5
measured level 0A6
detection window 0A7
application par. 0A8
tag no. 0C0
Profile Version (PROFIBUS PA only) 0C1
protocol+sw-no. 0C2
serial no. 0C4
distance unit 0C5
temperature unit 0C6
download mode 0C8
page 48
page 48
page 49
page 51
page 51
page 52
page 52
page 52
page 52
page 53
page 53
page 53
page 54
page 55
page 56
page 57
page 57
page 58
page 59
page 59
page 59
page 60
page 60
page 61
page 61
12
service 0D
page 61
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
E
+
–
E
+
–
E
+
–
Function group "basic setup" (00)
3 Function group "basic setup" (00)
3.1 Function "measured value" (000)
This function displays the current measured value in the selected unit (see "customer
unit" (042) function). The number of places after decimal point can be selected in the
"no.of decimals" (095) function.
3.2 Function "tank shape" (002)
This function is used to select the tank shape.
Selection:
dome ceiling
horizontal cyl.
bypass stilling well
(ultrasonic guide pipe)
no ceiling
e. g. dumps, open levels
chanels, weirs
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sphere
flat ceiling
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function group "basic setup" (00)
3.3 Function "medium property" (003)
–
+
E
This function is used to set the medium properties:
Selection:
• unknown (e. g. pasty media such as greases, creams, gels etc.)
•liquid
• solid, grain size < 4mm (fine)
• solid, grain size > 4mm (coarse)
3.4 Function "process cond." (004)
–
+
E
For this function, you have the following options:
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Function group "basic setup" (00)
Standard liquids Calm surface Turb. surface
For all fluid applications which do not fit in any
of the following groups.
Storage tanks with immersion tube or bottom
filling
Storage/accumulation tanks with uneven
surface due to free filling, mixing nozzles or
small bottom stirrers.
The filters and output damping are set to
average values.
Add. agitator Fast change Standard solid
Moving surfaces (poss. with vortex formation)
due to agitators
Special filters for stabilising the input signal
are set to large values.
- stable measured value
- medium reaction time
The averaging filters and output damping are
set to large values.
- stable measured value
- accurate measurement
- slow reaction time
Rapid level change, particularly in small tanks For all bulk solids applications which do not fit
The averaging filters are set to small values.
- rapid reaction time
- possibly unstable measured value
Special filters for stabilising the input signal
are activated.
- stable measured value
- medium reaction time
in any of the following groups.
The filter and output damping are set to
average values.
Solid dusty Conveyor belt Test:no filter
Dusty bulk solids Bulk solids with rapid level change All the filters can be switched off for purposes
The filters are set to detect even relatively
weak signals.
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The averaging filters are set to small values.
- rapid reaction time
- possibly unstable measured value
of service and diagnosis.
All filters off
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function group "basic setup" (00)
3.5 Function "empty calibr." (005)
–
+
E
This function is used to enter the distance from the sensor membrane (reference point
of the measurement) to the minimum level (= zero).
100 %
Empty calibration
E
Caution!
"
For dish bottoms or conical outlets, the zero point should be no lower than the point at
which the radar beam hits the bottom of the tank.
E:
0 %
3.6 Function "blocking dist." (059)
–
+
E
In this function the blocking distance is displayed. Level echoes within the blocking
distance can not be detected by the LUC-M**. Make sure that the maximum level will
never run into the blocking distance.
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E
+
–
Full calibration (span)
Blocking distance
Safety distance
100 %
0 %
F
BD
SD
F:
BD:
SD:
E
+
–
Function group "basic setup" (00)
3.7 Function "full calibr." (006)
This function is used to enter the distance from the minimum level to the maximum level
(= span).
Caution!
"
The maximum level may not project into the blocking distance (BD). If the blocking
distance is compromised, it may cause device malfunction.
After basic calibration, enter a safety distance (SD) in the "safety distance" (015)
function. If the level is within this safety distance, the LUC-M** signals a warning or an
alarm, depending on your selection in the "in safety distance" (016) function.
3.8 Display (008)
The distance measured from the sensor membrane to the product surface and the
level calculated with the aid of the empty calibration are displayed. Check whether the
values correspond to the actual level or the actual distance. The following cases can
occur:
• Distance correct – level correct continue with the next function,
"check distance" (051).
• Distance correct – level incorrect check "empty calibr." (005).
• Distance incorrect – level incorrect continue with the next function,
"check distance" (051).
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function group "basic setup" (00)
3.9 Function "check distance" (051)
–
+
E
This function triggers the mapping of interference echoes. To do so, the measured
distance must be compared with the actual distance to the product surface. The
following options are available for selection:
Selection:
• distance = ok
• dist. too small
• dist. too big
• dist. unknown
• manual
distance too small distance = ok
distance = ok
• Mapping is carried out up to the currently measured echo.
• The range to be suppressed is suggested in the "range of mapping" (052)
function.
Anyway, it is wise to carry out a mapping even in this case.
dist. too small
• At the moment, an interference is being evaluated.
• Therefore, a mapping is carried out including the presently measured echoes.
• The range to be suppressed is suggested in the "range of mapping" (052)
function.
dist. too big
• This error cannot be remedied by interference echo mapping.
• Check the application parameters (002), (003), (004) and "empty calibr." (005).
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E
+
–
E
+
–
Function group "basic setup" (00)
dist. unknown
If the actual distance is not known, no mapping can be carried out.
manual
A mapping is also possible by manual entry of the range to be suppressed. This entry is
made in the "range of mapping" (052) function.
Caution!
"
The range of mapping must end 0.5 m (20 in) before the echo of the actual level. For an
empty tank, do not enter E, but E - 0.5 m (20 in).
3.10 Function "range of mapping" (052)
This function displays the suggested range of mapping. The reference point is always
the sensor membrane. This value can be edited by the operator.
For manual mapping, the default value is: 0 m.
3.11 Funktion "start mapping" (053)
This function is used to start the interference echo mapping up to the distance given in
"range of mapping" (052).
Selection:
•off:no mapping is carried out
• on: mapping is started
Caution!
"
If a mapping already exists, it is overwriten up to the distance specified in
"range of mapping" (052). Beyond this value the existing mapping remains
unchanged.
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function group "basic setup" (00)
3.12 Display (008)
–
+
–
+
E
The distance measured from the reference point to the product surface and the level
calculated with the aid of the empty alignment are displayed again. Check whether the
values correspond to the actual level or the actual distance. The following cases can
occur:
• Distance correct – level correct basic setup completed.
• Distance incorrect – level incorrect a further interference echo mapping must be
carried out "check distance" (051).
• Distance correct – level incorrect check "empty calibr." (005).
E
After 3 s, the following message appears
!
Note!
After the basic setup, an evaluation of the measurement with the aid of the envelope
curve ("evelope curve" (0E) function group) is recommended.
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E
+
–
E
+
–
3.6
(2.4)
(110 %)
(-10 %)
t
[mA]
22
-99999
t
HART
PROFIBUS PA
PROFIBUS PA
HART
(-10 %)
(110 %)
+99999
Function group "safety settings" (01)
4 Function group "safety settings" (01)
4.1 Function "output on alarm" (010)
This function is used to select the reaction of the device on an alarm.
Selection:
•MIN (≤ 3.6 mA)
• MAX (22 mA)
• hold
• user specific
MIN (≤ 3.6 mA)
If the instrument is in alarm state, the output changes as follows:
• HART: MIN alarm 3.6 mA (2.4 mA for 4-wire instruments)
• PROFIBUS PA: MIN alarm -99999
MAX (22 mA)
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If the instrument is in alarm state, the output changes as follows:
• HART: MAX alarm 22 mA
• PROFIBUS PA: MAX alarm +99999
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LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
HART
t t
PROFIBUS PA
Hold Hold
3.6
-10 %
110 %
(110 %)
(-10 %)
[mA]
22
3.6
(-10 %)
(110 %)
Function group "safety settings" (01)
hold
If the instrument is in alarm state, the last measured value is held.
user specific
If the instrument is in an alarm state, the output is set to the value configured in
"output on alarm" (011) (x mA).
Caution!
"
This selection is available for HART devices only!
4.2 Function "output on alarm" (011), HART only
–
+
E
The current (in mA) which will be output in case of an alarm. This function is active when
you selected "user specific" in the "output on alarm" (010) function.
Caution!
"
This function is available for HART devices only!
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E
+
–
delay time (014)
delay time (014)
delay time
(014)
ramp %span/min
(013)
Function group "safety settings" (01)
4.3 Function "outp. echo loss" (012)
Use this function to set the output response on echo loss.
Selection:
•alarm
• hold
•ramp %/min
alarm
On echo loss, the instrument switches to alarm state after an adjustable
"delay time" (014). The output response depends on the configuration set in
"output on alarm" (010).
hold
On echo loss, a warning is generated after a definable "delay time" (014). Output is
held.
ramp %/min
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On echo loss, a warning is generated after a definable "delay time" (014). The output is
changed towards 0 % or 100 % depending on the slope defined in "ramp %span/min"
(013).
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