Pepperl+Fuchs Pulscon LTC Parts list manual

BA245O/98/en/06.09
52013052
120782 06/09 01
Valid as a software version
V 01.04.02
Guided Level Radar
Pulscon LTC with
HART/4 mA ... 20 mA and
PROFIBUS PA
Description of Instrument Functions
HAR T
R
FIELD COMMUNICATION PROTOCOL

Pulscon LTC
Basis Setup
DOCT-0094A 06/2009 120782
2
Brief overview
SD
UB
F
L
D
E
LN
flange:
reference point of
measurement
tank shape
Standard
measuring cond.
Unknown
measuring cond.
Standard
mapping
safety settings
linearisation
extended calibr.
...
empty calibr.
full calibr.
(description see BA 245O)
basic setup (standard)option
E = empty calibr.(= zero) LN = probe length
setting in 005 setting in 033
F = full calibr. (= span) UB = upper blocking distance
setting in 006 setting in 059
D = distance (distance flange/product) SD = safety distance
display in 0A5 setting in 015
L=level
display in 0A6

Pulscon LTC
Table of Contents
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Brief overview . . . . . . . . . . . . . . . . . . . . . . . . 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 menuto
locate a function description . . . . . . . . . . . . . . . . . . 5
1.3 Using the index of the function menuto
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 Pulscon LTC . . . . . . . . . . . . 11
3 Function group "basic setup" (00). . . 13
3.1 Function "measured value" (000) . . . . . . . . . . . . . 13
3.2 Function "tank properties" (002) . . . . . . . . . . . . . . 13
3.3 Function "medium property" (003). . . . . . . . . . . . . 14
3.4 Function "process propert." (004) . . . . . . . . . . . . . 15
3.5 Function "end of probe" (030) . . . . . . . . . . . . . . . . 15
3.6 Function "probe length" (031) . . . . . . . . . . . . . . . . 16
3.7 Function "probe" (032). . . . . . . . . . . . . . . . . . . . . . 16
3.8 Function "probe length" (033) . . . . . . . . . . . . . . . . 16
3.9 Function "determine length" (034) . . . . . . . . . . . . . 17
3.10 Function "empty calibr." (005) . . . . . . . . . . . . . . . . 17
3.11 Function "full calibr." (006). . . . . . . . . . . . . . . . . . . 18
3.12 Display (008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.13 Function "check distance" (051) . . . . . . . . . . . . . . 19
3.14 Function "range of mapping" (052) . . . . . . . . . . . . 20
3.15 Function "start mapping." (053). . . . . . . . . . . . . . . 20
3.16 Display (008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4 Function "safety settings" (01) . . . . . 22
4.1 Function "output on alarm" (010). . . . . . . . . . . . . . 22
4.2 Function "output on alarm" (011), HART only . . . . 24
4.3 Function "outp. echo loss" (012) . . . . . . . . . . . . . . 24
4.4 Function "ramp %span/min" (013). . . . . . . . . . . . . 25
4.5 Function "delay time" (014) . . . . . . . . . . . . . . . . . . 26
4.6 Function "safety distance" (015) . . . . . . . . . . . . . . 26
4.7 Function "in safety dist." (016). . . . . . . . . . . . . . . . 26
4.8 Function "ackn. alarm" (017) . . . . . . . . . . . . . . . . . 28
4.9 Function "overspill prot." (018) . . . . . . . . . . . . . . . 28
4.10 Function "broken probe det" (019). . . . . . . . . . . . . 28
5 Function group
"length adjustment" (03). . . . . . . . . . . 29
5.1 Function "end of probe" (030) . . . . . . . . . . . . . . . . 29
5.2 Function "probe length" (031) . . . . . . . . . . . . . . . . 29
5.3 Function "probe" (032). . . . . . . . . . . . . . . . . . . . . . 29
5.4 Function "probe length" (033) . . . . . . . . . . . . . . . . 30
5.5 Function "determine length" (034) . . . . . . . . . . . . . 30
6 Function group "linearisation" (04) . . 31
6.1 Function "level/ullage" (040). . . . . . . . . . . . . . . . . . 31
6.2 Function "linearisation" (041) . . . . . . . . . . . . . . . . . 32
6.3 Function "customer unit" (042) . . . . . . . . . . . . . . . . 36
6.4 Function "table no." (043) . . . . . . . . . . . . . . . . . . . . 37
6.5 Function "input level" (044). . . . . . . . . . . . . . . . . . . 37
6.6 Function "input volume" (045) . . . . . . . . . . . . . . . . 38
6.7 Function "max. scale" (046) . . . . . . . . . . . . . . . . . . 38
6.8 Function "diameter vessel" (047) . . . . . . . . . . . . . . 38
7 Function group "extended calibr." (05) 39
7.1 Function "selection" (050). . . . . . . . . . . . . . . . . . . . 39
7.2 Function "check distance" (051) . . . . . . . . . . . . . . . 39
7.3 Function "range of mapping" (052). . . . . . . . . . . . . 40
7.4 Function "start mapping" (053). . . . . . . . . . . . . . . . 41
7.5 Function "pres. map dist." (054) . . . . . . . . . . . . . . . 41
7.6 Function "delete mapping" (055) . . . . . . . . . . . . . . 41
7.7 Function "echo quality" (056) . . . . . . . . . . . . . . . . . 42
7.8 Function "offset" (057) . . . . . . . . . . . . . . . . . . . . . . 42
7.9 Function "output damping" (058) . . . . . . . . . . . . . . 42
7.10 Function "upper block. dist" (059). . . . . . . . . . . . . . 43
8 Function group "output" (06),
- "profibus param." (06),
PROFIBUS PA only . . . . . . . . . . . . . . . 45
8.1 Function "commun. address" (060), HART only. . . 45
8.2 Function "instrument addr." (060),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 45
8.3 Function "no. of preambels" (061), HART only. . . . 45
8.4 Function "ident number" (061),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 46
8.5 Function "low output limit" (062), HART only . . . . . 46
8.6 Function "set unit to bus" (062),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 46
8.7 Function "curr. output mode" (063), HART only . . . 47
8.8 Function "out value" (063), PROFIBUS PA only . . 47
8.9 Function "fixed cur. value" (064), HART only . . . . . 48
8.10 Function "out status" (064), PROFIBUS PA only . . 48
8.11 Function "simulation" (065). . . . . . . . . . . . . . . . . . . 49
8.12 Function "simulation value" (066) . . . . . . . . . . . . . . 50
8.13 Function "output current" (067), HART only . . . . . . 50
8.14 Function "2nd cyclic value" (067),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 50
8.15 Function "4mA value" (068), HART only . . . . . . . . 50
8.16 Function "select v0h0" (068),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 51
8.17 Function "20mA value" (069), HART only . . . . . . . 51
8.18 Function "display value" (069),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 51
9 Function group
"envelope curve" (0E) . . . . . . . . . . . . . 52
9.1 Function "plot settings" (0E1) . . . . . . . . . . . . . . . . . 52
9.2 Function "recording curve" (0E2) . . . . . . . . . . . . . . 52
9.3 Function "envelope curve display" (0E3) . . . . . . . . 53

Pulscon LTC
Table of Contents
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10 Function group "display" (09) . . . . . . . 55
10.1 Function "language" (092) . . . . . . . . . . . . . . . . . . 55
10.2 Function "back to home" (093) . . . . . . . . . . . . . . . 55
10.3 Function "format display" (094). . . . . . . . . . . . . . . 56
10.4 Function "no.of decimals" (095) . . . . . . . . . . . . . . 56
10.5 Function "sep. character" (096) . . . . . . . . . . . . . . 56
10.6 Function "display test" (097) . . . . . . . . . . . . . . . . . 57
11 Function group "diagnostics" (0A) . . . 58
11.1 Function "present error" (0A0) . . . . . . . . . . . . . . . 59
11.2 Function "previous error" (0A1) . . . . . . . . . . . . . . 59
11.3 Function "clear last error" (0A2) . . . . . . . . . . . . . . 59
11.4 Function "reset" (0A3). . . . . . . . . . . . . . . . . . . . . . 60
11.5 Function "unlock parameter" (0A4) . . . . . . . . . . . . 61
11.6 Function "measured dist." (0A5) . . . . . . . . . . . . . . 62
11.7 Function "measured level" (0A6) . . . . . . . . . . . . . 63
11.8 Function "detection window" (0A7)
(from Software 01.04.00) . . . . . . . . . . . . . . . . . . . 63
11.9 Function "application par." (0A8) . . . . . . . . . . . . . 64
12 Function group
"system parameters" (0C) . . . . . . . . . . 65
12.1 Function "tag no." (0C0). . . . . . . . . . . . . . . . . . . . . 65
12.2 Function "profile version" (0C1),
PROFIBUS PA only . . . . . . . . . . . . . . . . . . . . . . . . 65
12.3 Function "protocol+sw-no." (0C2) . . . . . . . . . . . . . 65
12.4 Function "serial no." (0C4) . . . . . . . . . . . . . . . . . . . 65
12.5 Function "distance unit" (0C5) . . . . . . . . . . . . . . . . 66
12.6 Function "download mode" (0C8) . . . . . . . . . . . . . 67
13 Function group "service" (0D) . . . . . . . 68
14 Envelope curve (echo curve) . . . . . . . . 69
14.1 Envelope curve with the PACTwareTM . . . . . . . . . . 69
15 Trouble-shooting. . . . . . . . . . . . . . . . . . 70
15.1 Trouble-shooting instructions. . . . . . . . . . . . . . . . . 71
15.2 System error messages . . . . . . . . . . . . . . . . . . . . . 72
15.3 Application errors. . . . . . . . . . . . . . . . . . . . . . . . . . 73
15.4 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Index function menu . . . . . . . . . . . . . . . . . . 75

Pulscon LTC
Notes on use
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1 Notes on use
Youhave 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.). Youcan access a more detailed description of a
function by using a page reference/link.
The table of contents is on page 3.
1.2 Using the graphic of the function menu to locate a function
description
This guides youstep by step from the highest level, the function groups, to the exact
function description yourequire.
All the available function groups and instrument functions are listed in the table
(page 11). Select your required function group or function. Youcan access an exact
description of the function group or function by using a page reference/link.
1.3 Using the index of the function menu to locate a function
description
To simply navigation within the function menu, each function has a position which is
shown in the display. Youcan access each function via a page reference/link in the
function menuindex (page 75) which lists all the function names alphabetically and
numerically.

Pulscon LTC
Notes on use
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1.4 General structure of the operating menu
The operating menuis made up of two levels:
•Function groups (00, 01, … , 0C, 0D):
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, …, 0D8, 0D9):
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:
• Select the "basic setup" (00) function group.
• Select the "tank properties" (002) (where the existing tank properties is selected).
1.4.1 Identifying the functions
For simple orientation within the function menus, for each function a position is shown
on the display.
The first two digits identify the function group:
The third digit numbers the individual functions within the function group:
Here after the position is always given in brackets (e. g. "tank properties" (002)) after
the described function.
• basic setup 00
• safety settings 01
•linearisation 04
...
• basic setup 00 →• tank properties. 002
• medium property 003
• process cond. 004
...

Pulscon LTC
Notes on use
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1.5 Display and operating elements
Four lines with 20 characters each. Display contrast adjustable through key
combination.
The LTC-Z02 LCD display can be removed to ease operation by simply pressing the
snap-fit (see graphic above). It is connected to the device by means of a 500 mm cable.
1.5.1 Display
Liquid crystal display (LCD):
ENDRESS+HAUSER
MICROPILOTII
IP65
OrderCode:
Ser.-No.:
Messbereich
Measuringrange
U16...36VDC
4...20mA
max.20m
MadeinGermany Maulburg
T>70C:
At>85C
E
+
–
LCD
(Liquid crystal display)
Symbols 3 keys
Snap-fit
X
X
X
X
S
S
O
OFF
F
F
HOME
FG00 F000 F001 F002 F003 F004 ...
FG01
FG02
FG03
FG04
FG05
FG06
FG07
...
+21mV 9C
1 .2.3 5m
.
E
+
–
Bargraph
Selection list
Help text
Envelope
curve
Headline Position indicator
Main value
Unit Symbol
Function groups (FG) Functions (F)

Pulscon LTC
Notes on use
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1.5.2 Display symbols
The following table describes the symbols that appear on the liquid crystal display:
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
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.
Key(s) Meaning
Oor VNavigate upwards in the selection list
Edit numeric value within a function
Sor WNavigate downwards in the selection list
Edit numeric value within a function
Xor ZNavigate to the left within a function group
FNavigate to the right within a function group, confirmation.
Oand F
or
Sand FContrast settings of the LCD
Oand Sand F
Hardware lock/unlock
After a hardware lock, an operation of the instrument via display or
communication is not possible!
The hardware can only be unlocked via the display. An unlock parameter must
be entered to do so.

Pulscon LTC
Notes on use
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1.5.4 Operation with the LTC-Z02
1. Change from measured value display to Group selection by pressing F.
2. Press Sor Oto select the required Function group (e. g. "basic setup" (00)) and
confirm by pressing F→first function (e. g. "tank shape" (002)) is selected.
The active selection is marked by a in front of the menutext.
3. Activate Edit mode with Oor S.
Selection menus
a) Select the required Parameter in selected function (e. g. "tank shape" (002))
with Sor O.
b)Fconfirms selection; →appears in front of the selected parameter.
c) Fconfirms the edited value; →system quits edit mode.
d) Oand S(= Q) interrupts selection; →system quits edit mode.
Typing in numerals and text
a) Press Oor Sto edit the first character of the numeral/text (e. g. "empty
calibr." (005)).
b)Fpositions the cursor at the next character; →continue with a. until youhave
completed your input.
c) If a ↵symbol appears at the cursor, press Fto accept the value entered;
→system quits edit mode.
d) Oand S(= Q) interrupts the input; →system quits edit mode.
4. Press Fto select the next function (e. g. "medium property" (003)).
5. Press Oand S(= Q) once; →return to previous function (e. g. "tank
shape" (002)).
Press Oand S(= Q) twice; →return to Group selection.
6. Press Oand S(= Q) to return to Measured value display.
E
+
–
XX
X
X
S
SS
OOO
FF
> 3 s
F
...
2x
...
...
Return to
Group Selection
basic setup
safety settings
linearisation
extended calibr.
tank shape
Standard
aluminium tank
plastic tank
bypass / pipe
coax probe
concrete wall
medium property

Pulscon LTC
Notes on use
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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:

After 5 s, the following message appears
After 5 s, the following message appears
(e. g. on HART devices)
After 5 s or after youhave pressed Fthe
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 message value is displayed
After Fis pressed, youreach the group selection
This selection enables youto perform the basic
setup
E
+
–

Pulscon LTC
Function Pulscon LTC
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2 Function Pulscon LTC
Function group Function Description
basic setup 00 measured value000 page 13
(see page 13) tank properties 002 page 13
medium property 003 page 14
process propert. 004 page 15
end of probe030 page 15
probe length 031 page 16
probe032 page 16
probe length 033 page 16
determine length 034 page 17
empty calibr. 005 page 17
full calibr. 006 page 18
check distance 051 page 19
range of mapping 052 page 20
start mapping 053 page 20
safety settings 01 output on alarm 010 page 22
(see page 22) output on alarm (HART only) 011 page 24
outp. echo loss 012 page 24
ramp %span/min 013 page 25
delay time 014 page 26
safety distance 015 page 26
in safety dist. 016 page 26
ackn. alarm 017 page 28
overspill prot. 018 page 28
broken probe det 019 page 28
length adjustment 03 end of probe030 page 29
(see page 29) probe length 031 page 29
probe032 page 29
probe length 033 page 30
determine length 034 page 30
Linearisation 04 level/ullage 040 page 31
(see page 31) linearisation 041 page 32
customer unit 042 page 36
table no. 043 page 37
input level 044 page 37
input volume 045 page 38
max. scale 046 page 38
diameter vessel 047 page 38
extended calibr. 05 selection 050 page 39
(see page 39) check distance 051 page 39
range of mapping 052 page 40
start mapping 053 page 41
pres. map dist. 054 page 41
delete mapping 055 page 41
echo quality 056 page 42
offset 057 page 42
output damping 058 page 42
upper block. dist 059 page 43

Pulscon LTC
Function Pulscon LTC
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Function group Function Description
output 06 commun. address (HART only) 060 page 45
PROFIBUS param. 06 instrument addr. (PROFIBUS PA only) 060 page 45
PROFIBUS PA only no. of preambels (HART only) 061 page 45
(see page 45) ident number (PROFIBUS PA only) 061 page 46
low output limit (HART only) 062 page 46
set unit to bus (PROFIBUS PA only) 062 page 46
curr. output mode (only HART) 063 page 47
out value (PROFIBUS PA only) 063 page 47
fixed cur. value (HART only) 064 page 48
out status (PROFIBUS PA only) 064 page 48
simulation 065 page 49
simulation value066 page 50
output current (HART only) 067 page 50
2nd cyclic value (PROFIBUS PA only) 067 page 50
4mA value (HART only) 068 page 50
select v0h0 (PROFIBUS PA only) 068 page 51
20mA value (HART only) 069 page 51
display value (PROFIBUS PA only) 069 page 51
envelope curve 0E plot settings 0E1 page 52
(see page 52) recording curve 0E2 page 52
envelope curve display 0E3 page 53

display 09 language 092 page 55
(see page 55) back to home 093 page 55
format display 094 page 56
no.of decimals 095 page 56
sep. character 096 page 56
display test 097 page 57
diagnostics 0A present error 0A0 page 59
(see page 58) previous error 0A1 page 59
clear last error 0A2 page 59
reset 0A3 page 60
unlock parameter 0A4 page 61
measured dist. 0A5 page 62
measured level 0A6 page 63
detection window 0A7 page 63
application par. 0A8 page 64
system parameter 0C tag no. 0C0 page 65
(see page 65) Profile Version (PROFIBUS PA only) 0C1 page 65
protocol+sw-no. 0C2 page 65
serial no. 0C4 page 65
distance unit 0C5 page 66
download mode 0C8 page 67
service D00 service level D00 page 68

Pulscon LTC
Function group "basic setup" (00)
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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 digits after decimal point can be
selected in the "no.of decimals" (095) function.
3.2 Function "tank properties" (002)
This function is used to select the tank properties.
Selection:
•standard
•aluminium tank
• plastic tank
•bypass/pipe
• coax probe
• concrete wall
standard
The "standard" option is recommended for normal containers for rod and rope probes.
aluminium tank
The "aluminium tank" option is designed especially for high aluminium silos that cause
an increased level of noise when empty. This option is only useful for probes longer than
4 m. For short probes (< 4 m) select the "standard" option!
!Note!
If "aluminium tank" is selected, the device calibrates of its own accord when first filled,
depending on the medium's properties. Slope errors can, therefore, occur when
beginning the first filling procedure.
plastic tank
Select the "plastic tank" option when installing probes in wood or plastic containers
without metallic surfaces at the process connection (see installation in plastic
containers). When using a metallic surface at the process connection, the "standard"
option is sufficient!
!Note!
In principle the employment of a metallic surface area should be preferred at the
process connection!

E
+
–

E
+
–

E
+
–

Pulscon LTC
Function group "basic setup" (00)
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bypass/pipe
The "bypass/pipe" option is designed especially for the installation of probes in a
bypass or a stilling well. If this option is selected, the upper blocking distance is preset to
100 mm.
coax probe
Select the "coax probe" option when using a coax probe. When this setting is made,
the evaluation is adapted to the high sensitivity of the coax probe. This option should,
therefore, not be selected when using rope or rod probes.
concrete wall
The "concrete wall" option takes into account the signal-damping property of concrete
walls when mounting with < 1 m distance to the wall.
3.3 Function "medium property" (003)
This function is used to select the dielectric constant.
Selection:
•unknown
• 1.4 ... 1.6 (for coax and rod probe with installation in metallic pipes ≤DN150)
• 1.6 ... 1.9
• 1.9 ... 2.5
• 2.5 ... 4.0
• 4.0 ... 7.0
•>7.0
The lower group applies to very loose or loosened bulk solids. Reduction of the max.
possible measuring range by means of:
• extremely loose surfaces of bulk solids, e. g. bulk solids with low piled density when
filled pneumatically.
•Build-up, primarily of moist products.

E
+
–
Medium
group
DC (εr) Typical bulk solids Typical liquids Measuring range
bare metallic probes PA-coated rope
probes
11.4 … 1.6 – Condensed gases, e. g. N2, CO24 m/157", coax probe–
21.6 … 1.9 Plastic granulate
White lime, special cement
Sugar
Liquefied gas, e. g. Propane
Solvent
Frigen/Freon
Palm oil
25 m ... 30 m/
984" ... 1181"
12.5 m ... 15 m/
492" ... 590"
31.9 … 2.5 Portland cement, plaster Mineral oils, fuels 30 m ... 35 m/
1181" ... 1378"
–
Flour – – 15 m ... 25 m/
590" ... 984"
42.5 … 4 Grain, seeds – – 25 m ... 30 m/
984" ... 1181"
Ground stones
Sand
Benzene, styrene, toluene
Furan
Naphthalene
35 m/1378" 25 m ... 30 m/
984" ... 1181"
54 … 7 Naturally moist (ground)
stones, ores
Salt
Chlorobenzene, chloroform
Cellulose spray
Isocyanate, aniline
35 m/1378" 35 m/1378"
6> 7 Metallic powder
Carbon black
Coal
Aqueous solutions
Alcohols
Ammonia
35 m/1378" 35 m/1378"

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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3.4 Function "process propert." (004)
Use this function to adapt the device reaction to the filling speed in the tank. The setting
impacts on an intelligent filter.
Selection:
•standard
• fast change
• slow change
• test:no filter
3.5 Function "end of probe" (030)
Use this function to select the polarity of the probe end signal. If the probe end is
uncovered or in an insulated attachment, there is a negative probe end signal.
The signal from the probe end is positive if the attachment is grounded.
Selection:
•free
• tie down isol.
• tie down gnd.

E
+
–
Selection: Standard Fast change Slow change Test: no filter
Application: For all normal applications,
bulk solids and fluids at
low to medium filling speed
and sufficiently large
tanks.
Small tanks, primarily with
fluids, at high filling
speeds.
Applications with strong
surface movement, e. g.
caused by stirrer, primarily
large tanks with slow to
medium filling speed.
Shortest reaction time:
-Fortestpurposes
- Measurement in small
tanks at high filling
speeds, if "rapid
change" setting is too
slow.
2-wire electronics: Dead time: 4 s
Rise time: 18 s
Dead time: 2 s
Rise time: 5 s
Dead time: 6 s
Rise time: 40 s
Dead time: 1 s
Rise time: 0 s
4-wire electronics: Dead time: 2 s
Rise time: 11 s
Dead time: 1 s
Rise time: 3 s
Dead time: 3 s
Rise time: 25 s
Dead time: 0.7 s
Rise time: 0 s

E
+
–

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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3.6 Function "probe length" (031)
Use this function to select whether the probe length was changed after factory
calibration. Only then is it necessary to enter or correct the probe length.
Selection:
• modified
• not modified
!Note!
If "modified" was selected in the "probe length" (031) function, the probe length is
defined in the next step.
3.7 Function "probe" (032)
Use this function to select whether the probe is at the time of the commissioning
uncovered or covered.
If the probe is uncovered, the Pulscon can determine the probe length automatically
"determine length" (034) function. If the probe is covered, a correct entry is required in
the "probe length" (033) function.
Selection:
•free
• covered
3.8 Function "probe length" (033)
Use this function, the probe length can be entered manually.

E
+
–

E
+
–

E
+
–

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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3.9 Function "determine length" (034)
Use this function, the probe length can be determined automatically.
Due to the mounting conditions, the automatically determined probe length may be
larger than the actual probe (typically 20 mm ... 30 mm longer). This has no influence on
the measuring accuracy. When entering the empty value for a linearisation, please use
the "empty calibration" instead of the automatically determined probe length.
Selection:
•length ok
• too short
• too long
After selection "too short" or "too long", the calculation of the new value need approx.
10 s.
3.10 Function "empty calibr." (005)
This function is used to enter the distance from the flange (reference point of the
measurement) to the minimum level (= zero).

E
+
–

E
+
–
0 %
E
E = empty calibration (= zero)
E = probe length – lower blocking distance
max

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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3.11 Function "full calibr." (006)
This function is used to enter the distance from the minimum level to the maximum level
(= span).
!Note!
The usable measuring range lies between the lower and the upper blocking distance.
The values for empty distance (E) and span (F) can be set independently of this.
3.12 Display (008)
The distance measured from the reference point to the product surface and the
meas. value calculated with the aid of the empty adjustment are displayed. Check
whether the values correspond to the actual meas. value or the actual distance. The
following cases can occur:
• Distance correct – meas. value correct continue with the next function
"check distance" (051).
• Distance correct – meas. value incorrect check "empty calibr." (005)
• Distance incorrect – meas. value incorrect continue with the next function
"check distance" (051).

E
+
–
100 %
0 %
F
F = full calibration (= span)
F = E – upper blocking distance
max

E
+
–

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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3.13 Function "check distance" (051)
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
•probe free
distance = ok
Use this function at part-covered probe. Choosing function "manual" or "probe free" at
free probe.
• 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.
!Note!
At free probe, the mapping should be confirmed with the choice "probe free".
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
"range of mapping" (052) function.

E
+
–
distance too small distance = ok

Pulscon LTC
Function group "basic setup" (00)
DOCT-0094A 06/2009 120782
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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 0.3 m (12") before the echo of the actual level. In case
of empty vessel it is possible to make a map over the whole probe length.
probe free
If the probe is uncovered, mapping is carried out along the whole probe length.
"Caution!
Only begin mapping in this function if the probe is safely uncovered. Otherwise, the
device will not make correct measurements!
3.14 Function "range of mapping" (052)
This function displays the suggested range of mapping. The reference point is always
the reference point of the measurement (see page 2). This value can be edited by the
operator.
For manual mapping, the default value is 0.3 m.
3.15 Function "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

E
+
–

E
+
–