Tecson e-litro Series User guide

V6.x // 06-2016 Setup and Operation P. 1
Start-up + Operation
Electronic pneumatic tank measurement system
of the e-litro®series
e-litro SW-Version V6.0x
e-litro secu4 SW-Version V6.0x
e-litro net SW-Version V6.0x
e-litro gsm SW-Version V6.0x
for tank sizes up to max. 10,000 liters
CONTENT: Installation and mounting 4
Control elements and display 4
ALARM and QUIT-button for secu4 6
Device setup and programming 7
Programming examples 10
Tank with interior mantle 11
Special settings 12
Error messages / Error indication 14
- for device type e-litro net 15
- for device type e-litro gsm 17
Electrical connections 18
Regualtions and maintenance 20

P. 2 Setup and Operation V6.x // 06-2016
Installation and mounting
E-litro devices are not viable for external installation (safety class IP50).
The tank monitoring system is no overfill safety.
During the tank filling the secu4 assists to avoid an overfilling after TRwS 791.
It will report a filling limit ALARM to interrupt the current loop of the limit indicator
and disable the tank filling.
The secu4 does not replace but support the limit indicator by monitoring the
downstream battery tanks.
For installation and mounting of the devices mentioned above please follow the
conditions of the respective manual. The corresponding safety instructions for electric
devices and oil tanks need to be observed.
The startup is performed after successful mounting.
The displaying devices of the e-litro® series are applicable for liquid level measurements of tanks
operated unpressurized. Maximum display value: 10,000 liters (per tank, in case of secu4)
The liquid level is indicated by the LCD display. The instrument versions e-litro net and e-litro
gsm are able to retransmit the displayed data and the present status (data transfer via RDT).
The devices of the e-litro series are equipped with a power plug for 230V sockets.
The transducer (sensor) is connected to the measuring input of the e-litro displaying device.
Usually the transducer is the electronic-pneumatically measuring LITRO-Sensor: A level
measurement sensor with a measurement range of 0-25 kPa (0-250 mbar) for relative
hydrostatic pressure.
Measuring input: 4-20 mA analog signal, 2-wire principle with sensor supply of 20V dc.
clamp 1 = plus, white (or red)
clamp 2 = minus, brown (or black)
Other transducers with 4-20 mA signal
could also be connected to the
e-litro displaying devices
(except for secu4).
CONCEPT:
e-litro / e-litro net / e-litro gsm
with LITRO-sensor

V6.x // 06-2016 Setup and Operation P. 3
e
-
litro secu4:
The secu4 device is an oil tank measuring system for battery tank systems. The complete set
consists of the displaying device and the sensorbox which has to be mounted close to the tank.
The sensorbox of the secu4 has 4 measuring hose inputs to measure and observe 4 single tanks
of one tank-battery at the same time. In addition to the level indication (in liters, cm, %, refillable
clearance) the device also monitors the levels of every single tank to avoid an overfilling. If during
the tank filling the level of one of the tanks reaches its maximum, e.g. 95% filling limit, the secu4
will sound the ALARM and an output relay will interrupt the current loop of the tanker.
The displaying device and the sensorbox both contain of an alarm sound.
Such an alarm can be switched off by pushing the QUIT-button on top of the displaying device.
In case of an alarm the QUIT-button will flash red.
Instead of connecting it to a 4-20mA sensor as usual the secu4 has to be connected to the sen-
sorbox via three-pole clamping block on the left hand side of the circuit board:
secu4 data input from the sensorbox: clamp 1 = plus, white (or red)
clamp 2 = data, green (or blue)
clamp 3 = minus, brown (or black)
The data line from the sensorbox to the displaying device (three-pole) is prolongable up to 50m
The use of a current loop connection box is optional. Therewith the tank filling can be
interrupted automatically.

P. 4 Setup and Operation V6.x // 06-2016
Control elements and display
First determine the container data and then enter the data into the device menu.
The programming is described in the following pages.
To setup the displaying device the lid has to be twisted off. Perform the device setup once at the
initial startup. After startup the device operates in displaying mode while the lid is closed.
By pressing the [Enter] button the displaying mode changes to menu mode.
With menu item ‘Exit’(step 0 or 7 or 8) the programming mode is left and the normal displaying
mode is active.
Display panel
2 x 16 characters are displayed in a two-line LCD display. The display is equipped with a
background lightning for best readability at all lightning conditions.
Control keys
For device setup use the 3 little pushbuttons (blue or pink) located on the electronic base plate:
[ + ] [Enter] [ - ]
Enter = Confirm selection. +/- = Change values or skip to next menu step.
Language
Select the operation language (German / English / French) in menu step 18.
Select displaying mode for e-litro and e-litro net /gsm:
After setting menu items 1 to 5b the favored displaying mode is to be selected under menu item
‘6. Display’.
The name of the tank/liquid is shown on the left hand side in the top line and is adjustable under
menu item ’18. Language + Names’.
In in the second line of the display it is to be selected to either show the refillable clearance (up to
limit indicator) and/or the percentage (inventory) and/or the current liquid level in cm.
Settings: 6. Display:
Line 1: Name + Inventory in (-) L:
Line 2: Fillspace in (-) L + Vol.percentage:
(bottom left) (bottom right)
Line 2: Fillspace in (-) L + Liquid level:
Line 2: Vol.percentage + Liquid level:
RECOMMENDATION:
Make sure the refillable clearance (fillspace) is always shown.
While refilling the tank the clearance needs to be detectable! (In accordance with TRwS 791)
Additional benefit: In Example 1 and 2 the bottom left value –x.xxxL shows the present heating
oil consumption if previously the tank had been filled up to the filling limit.

V6.x // 06-2016 Setup and Operation P. 5
Display of the
e
-
litro secu4
:
The menu item ‘6. Display’is ‘without a function’and therefore not available.
In case of a battery tank system the device is able to observe and show the values of 1 to 4 tanks
in the four display lines.
Additional to the usual displaying of the current liquid volume the clearance is shown before and
during the refilling process (In accordance with TRwS 791).
The clearance is the value (in L) that is left until one of the single tanks reaches the selected filling
limit (of e.g. 95%) during a parallel filling.
Under menu item 5b the filling limit is to be adjusted to the limit indicator height as accurate as
possible.
Password:
The device settings can be protected by activating a password under menu item 8.
A forgotten password can be requested by contacting TECSON.
Resetting the secu4 will cause the device to demote in a non programmed state
secu4 display with 1 or 2 tanks:
DISPLAY: ‘wait...’
The displaying device waits for
stable measurement data from the
sensorbox. This can last 1 –3 min.
after turning on the device.
DISPLAY: Values tank 1:
Values tank 2:
Inventory sum:
Fillspace:
No displaying switch occurs.
Line 3 and 4 show inventory and fillspace.
While refilling the inventory is measured and displayed
as well.
As soon as one of the tanks reaches e.g. 93% the
display changes line 4 to STOP! FILLLIMIT.
During the daily removal processes of the liquid later on
line 4 will change itself into a consumption indicator.
This consumption indicator shows the liter-consumption
since the last complete refill.

P. 6 Setup and Operation V6.x // 06-2016
secu4 display with 3 or 4 tanks:
Regular display:
In case of a battery tank system with 3 or 4 tanks the display will switch over.
Thereby the single tank display and the inventory and clearance display are shown alternately.
Switch-over
=>
If while refilling one of the tanks reaches 93%
a STAR as well as the warning STOP! Filllimit will appear.
Switch-over
=>
ALARM and QUIT-button for secu4:
Reference in this case is 95% filling limit, i.e. signaling at 93%
Filling level /
action Status Red LED (Quit-button) Beeper (loud) Relay break contact Display
all levels below
limit OK off off closed OK
level >= 93 %
at refill or reserve
warning
flashes
double
beeping closed
STOP
Quit
-
button
,
shortly
(quit beeper) warning gets quitted turns off turns off closed
STOP
level reaches 95%
(limit)
alarm
flashes
fast double
beeping
disrupts
STOP
Quit
-
button,
shortly
(quit beeper)
alarm
gets quitted
flashes
turns off
stays
disrupted
STOP
Quit
-
button,
long
(quit beeper)
hold for 3 sec.
Quit
-
status
but level still
exceeded
changes to
continuous
light
off closes again
STOP
level drops under
94%
(thru consumption)
warning turns off off closed full (stop)
level drops under
92% OK off off closed OK

V6.x // 06-2016 Setup and Operation P. 7
Device setup and programming
Press [Enter] to open the menu. The menu offers the menu steps 1 …7.
Menu steps 9 …24 offer special advanced options.
Only one level sensor can be connected to the instruments e-litro net / e-litro gsm.
Using the e-litro displaying device either one or two LITRO-Sensors can be connected.
Two sensors = duo-solution.
Shape and size of the tank or container has to be entered only once.
This applies for both the e-litro and the e-litro duo.
Press [ + ] to navigate to a particular menu item. Enter the parameterization of a particular
menu item and confirm the selected the value by pressing [Enter].
Input function:
Menu functions Description
Device type
4
0. Exit Entering the programming mode. Proceed with [+].
Also leaving the programming with [Enter] at the Exit item. all
1. Measuring probe
For secu4
1. Tank quantity
Setting up the measuring range of the level sensor:
The LITRO-Sensor is preset to 250mbar.
Measuring range: max. oil tank height: water column:
250 mbar ( 3.00 m ) ( 2.50 m )
If a different level sensor to the LITRO-Sensor is used, the
respective measuring range has to be entered in mbar.
If ‘by calibration’is displayed, a calibration was done via
menu item 10/11 ‘Trim height/Trim volume’.
Battery tanks: nn = quantity (1 to 4) of connected tanks
(all)
Do not enter
the level or
tank height
here.
Enter mbar
referring to
sensor label.
only for secu4
2. Liquid Selection of measuring liquid (specific weight of the liquid):
Heating oil, water, diesel oil, bio diesel oil, rapeseed oil, mo-
tor oil, lubrication oil, waste oil, other liquids after consultation.
.
Do not use AdBlue, palm oil, A1-media (petrol).
Or enter the ‘Density value’in xxx kg / m3. Use [+] [-].
If the density value of the liquid is unknown calibrate the
device via menu item ‘10.Trim height’
If ‘by calibration’is displayed, a calibration was done via
menu item 10/11 ‘Trim height/Trim volume’. In that case the
parameter ‘Liquid’(resp. density) is not relevant.
all

P. 8 Setup and Operation V6.x // 06-2016
3. Tank shape Selection of tank shape:
Alternatively just 1 special tank geometry can be setup
by a ‘Bearing chart’for liter conversion.
all
Linear Default: Linear tank.
Rectangular tank/ vertical cylinder/ steel cellar tank.
Cylindric horiz Cylindric tank.
Horizontal cylinder/ tubular container. Typical tank
shape for outdoor tanks and buried steel tanks.
Ball-shaped Spherical tank.
Ball-shaped buried tank.
Common buried plastic tanks (GRP).
Oval Oval cellar tank.
Typical shape of GRP plastic tanks.
Convex Convex plastic tank, mostly as a battery.
Slightly bellied tank shape.
Concave Concave plastic tank, mostly as a battery.
Concaved tank shape.
With excava-
tion Plastic tank with large cavity.
Excavation in the middle of the tank’s body.
(No ring bandages)
Cyl. > 50m
3
Not applicable with e-litro displaying devices.
Bearing chart
Value input
by an existing
bearing chart
of the tank
Reference table: Basic value table with up to
15 pairs of values ‘cm => liter’for the non-linear
areas of the tank.
Step 4 (Tank volume) and Step 5 (Tank height)
have to be set up beforehand.
Value pairs for 0% ( 0.0 cm => 0 L ) and 100%
(tank height => volume) are already set and
do not have to be entered again.
Index [1] xxx.x cm => xxxx L
Index [2] . . . .. cm => . . . . L
Index [n] . . . .. cm => . . . . L
Non-linear area: Enter several value pairs.
Linear region: Enter only begin and end pairs.
Unsymmetrical or
other tank shape
Individual
tank shape
Steel tanks Steel tank or battery tank group:
Linear side panels, with hemicycles at top and
bottom.
non
-
linear
n
on
-
linear
linear Area

V6.x // 06-2016 Setup and Operation P. 9
Input function:
Menu functions Description
Device type
4. Tank volume
For secu4
4b. Minimum limit
Enter the tank’s volume by [+] [-]. ( 100% value)
Default is 0 L. This value must be entered.
Attention, in case of an existing bearing chart:
Please use the pair of values for 100% for tank volume and
tank height from the table. For a 10m3buried tank values may
be e.g. 10,250 l and 198.5 cm.
.
For the secu4 the total volume of a single tank has to be set.
Display: e.g. 3 x 1000 liters
Set the minimum limit as a %-value.
If the level comes below the minimum limit the device will
sound an acoustic alarm. 0% = feature off / 50% = max value
maximum
volume:
10,000 L
only for secu4
Cancel alarm
via Quit-button
5. Tank height
5b. Filling limit
Enter the interior height of the tank in cm: e.g. 249.0 cm
Attention: If a bearing chart is available it is recommended to
take the max. value pair out of the chart.
For a 10 m3buried tank with d = 2 m a potential value could
be 198.7 cm.
Set the filling limit of the tank here: For oil tanks this will
represent the switch-off point of the limit indicator.
The preset is 95%.
e.g. Filling limit: 95%=190cm change of value with + / - .
If e.g. a water tank may be filled to capacity the filling limit
is to be set to a value of 99%.
all
all
6. Display
resp. for secu4
without function
The upper display line shows the name of the tank und the
inventory in liters (for other units see menu item 12).
Set the displaying mode for the second display line here:
View details: Fillspace+Percnt (-L, % )
or Fillspace+Level (-L, cm)
or Percent+Level ( %, cm)
For heating oil tanks option 1 or 2 is recommended (accord-
ing to TRwS 791-2 the clearance needs to be displayed).
e-litro gsm
e-litro net
irrelevant for
secu4
7. Relay
Switching function of relay 1: deactive / active / on / off
- deactive Effect: Relay operates independently
of the content. In addition there is no
remote signaling of the relay state.
- active Effect: Relay operates depending on the content.
- on Makes the relay energize ( fix ON ).
- off Makes the relay release ( fix OFF ).
Example switching point setup for ‘active’(with hysteresis):
On 10% - Enter relay‘s energizing point by + / -
Off 15% - Enter relay‘s releasing point by + / -
If both values are set to 0% the relay switching function is
disabled.
For secu4:
Preset: - opener (tanker off) = limit indicator-disrupter
- closer (only for other switching functions!)
The relay switching point is the %-limit from menu item 5b.
e-litro gsm
+ e-litro net
secu4:
for limit
indicator-
disruption

P. 10 Setup and Operation V6.x // 06-2016
8. Exit
or
8. Password+Exit
secu4 password
activation:
Press [Enter] to leave the setup mode (parameterization).
For the secu4 the password protection needs to be
activated with ‘YES’if the relay disruptor function for the
overfill safety is used.
During the activation the password will be shown once.
The password is fixed, meaning it is not changeable but
only activatable/deactivatable.
The qualified technician should note down the password and
store it appropriately.
If the password is lost please contact TECSON.
Therefore please have the serial number of the device ready!
not for secu4
for secu4
loss of
password
Menu item 9 –24
see ff.
Steps 9 –24 contain special settings which usually will not
be needed. all
After entering/setup of step 1 to 7 the standard programming is completed.
By confirming the ‘Exit’-step the device automatically returns to the usual displaying mode and
the present tank content is shown.
Mount the device cover after completing the initial setup!
Programming examples
Example 1 Cellar welded heating oil tank for 6000 L of heating oil, linear steel tank.
Interior height 165 cm, (filling level: 125 cm), LITRO-level probe 0 - 250 mbar.
Device e-litro:
Menu item
1. Measuring probe
2. Liquid
3. Tank shape
4. Tank volume
5. Tank height
5b. Filling Limit
6. Display
7. Relay
8. Exit [Enter]
Setting / Selection
250 mbar
Heating oil
Linear
6000 liter
165.0 cm
95%
Fillspace + Level
OFF
Displaying mode => ... 4550 l ... 76 %

V6.x // 06-2016 Setup and Operation P. 11
Example 2 Buried tank, cylindric horizontal, for 10,000 liters diesel,
Inner height 1.59 m, (filling level 54 cm), LITRO-level probe 0 - 250 mbar
Device e-litro gsm with SIM card:
Menu item
1. Measuring probe
2. Liquid
3. Tank shape
4. Tank volume
5. Tank height
5b. Filling limit
6. Display
7. Relay
8. ( Exit )
. . .
15. Modem
. . .
19. Exit [Enter]
Setting / Selection
250 mbar
Diesel oil
Cylindric horizontal
10050 l (exact value from bearing chart)
159.0 cm (exact value from bearing chart)
99% (no limit indicator)
Fillspace + Level
On: 96% Off: 94% (relay energizes at 96%)
Go forward to next step with [+]
...
PIN: xxxx - enter the PIN code of the SIM-card
...
Displaying mode => ... 1280 l ... 13 %
Example 3 e-litro secu4 device with 4 battery tanks 4 x 1250 liters,
steel tanks with hemicycles at top and bottom, 155cm tank height,
display: Fillspace + Level for each single tank
disable tank filling at a limit of 94%.
Menu item
1. Number of tanks
2. Liquid
3. Tank shape
4. Tank volume
5. Tank height
5b. Filling limit
6. Display
7. Unit
8. Exit [Enter]
Setting / Selection
4
Heating oil
Steel tanks
1250 L (x 4)
155.0 cm
94% = 146cm
Not available for secu4 (no function)
Active => ‘on’at 99% ; ‘off’at 10% of the filling level
Back to displaying mode;
Display 1 (details per tank) switches with
Display 2 total inventory in L; filling space in L
Tank with interior mantle
In case of a tank with interior mantle (e.g. horz. cyl. or cellar steel tank) correct the input values.
Example: Mantle thickness: ca. 5 –10 mm:
=> Enter ‘5.Tank height’: reduce height by ca. 15 mm
=> Enter ‘4.Tank volume’: reduce volume by ca. 2 %

P. 12 Setup and Operation V6.x // 06-2016
Special settings
Input function:
Additional functions
Description
Device type
Menu items 1 to 7
see pages 7-9
The menu items 1 to 7 are the basic setup of the devices.
Some special settings, e.g. language, network parameters
or others, have to be set up via menu items 9 to 24.
all
9. Offset probe
or for secu4:
9. Exit
Sub-menu a. ‘Offset calibration‘(electrical zero point)
b. ‘Probe bottom gap’(position over ground)
c. ‘Bottom dead stock’(shall not be displayed)
- ESC Exit this sub-menu.
- Offset calibration: Stores signal value of probe’s zero point.
Probe must not be plunged.
- Probe bottom gap: Distance x cm
Standard is x = 0 cm, max = 99 cm
- Bottom deadstock: Sucking position over ground: y cm
Standard is 0 cm = full inventory.
y > 0 cm means dead stock height
which doesn’t occur in the liter displaying
- Default values: Resets all values back to standard 0.
For secu4: Exit
all
do not
execute
with e-litro
10. Trim height Input option for the reference height for calibration of probe
and measurement device. It is useful in case of unknown
specific weight of the fluid.
Enter the current liquid level: xx.x cm ( + / - / Enter )
and confirm with YES / no.
If this is done at a low tank filling level it is recommend to
repeat this later again at a higher filling level.
all
11. Exit Exit the menu with [Enter]. all
12. Unit Adjustable units are: L(liters), %, m, kg, t (tons),
IG (Imperial Gallons), UG (US-Gallons) as well as pressure
units mbar and kPa. [+ / - / Enter]
‘L’or ‘kg’values are displayed with a separator point for
values over 1000.
‘%’or ‘m’values are displayed with two decimal places.
not for
secu4
13. Rounding Automatically - Default setting for automatic rounding
Without rounding - No rounding means highest resolution.
Unsteady, wobbling values may occur.
2 / 5 / 10 / 20 / 50 / 100 [L] are selectable
not for
secu4
14. Exit Exit the menu with [Enter]. all

V6.x // 06-2016 Setup and Operation P. 13
15. Network
or
15. Modem
e-litro net :- DHCP . . .
Sub-menu for network parameter
setup like IP address, message
destination and communication test.
Please coordinate these settings
with your network admin.
See additional documentation
’network device connection’.
e-litro gsm:- Send SMS . . .
A test SMS will be sent to the mobile
number set by #T command.
See additional documentation
‘Messages, commands a. parameters’.
- PIN . . . .
Shows the PIN no. of the SIM card.
PIN = 0000 completely deactivates the
internal GSM modem.
only for
e-litro net
only for
e-litro gsm
16. Delete tank ‘ESC’/ ‘tank n’Deletion of a registered tank.
Here you may re-sort or delete the
registered tank numbers. (+ / - / Return)
only for
e-litro gsm
e-litro net
17.Input/Output Alarm-In:
. . . Choose the function of the alarm contact input:
- Deactive Defines the alarm input to be
‘not operating’.
- Opening If input contact opens for > 4 min.
then alarm case will be entered.
- Closing If input contact closes for > 4 min.
then alarm case will be entered.
only for
e-litro gsm
e-litro net
only for
e-litro gsm
e-litro net
Data-Out:
. . . Defines the data output at the adaptor slot.
The available options are:
- Output of single tank data T1 / T2 / T3 / T4
=> Applicable for analog adaptor.
- Output of all tanks T1 –T4
=> Data of all tanks sequentially go
to the output, e.g. for a PC-LINK
output adaptor.
18.Language
+ Names Language: . . . ‘German’/ ‘English’/ ‘French’+ / - / Enter
all
all
Names:
. . . Tank name: (Name suggestion:) Heating oil
Choose letters with + / - / Enter
19.Exit Press [Enter] to return to the displaying mode. all

P. 14 Setup and Operation V6.x // 06-2016
Input function:
Additional functions
Description
Device
type
20. LCD Display By factory the contrast of the LCD display is preset as:
Contrast: xx (xx is a hexadecimal value) all
21. Device-info Shows:
Software version : V6.01 ( e.g. )
Serial no. : Tank i: SN=1234 ( i = Tank-no.)
Offset + Gain : X0=2980 B=1268 ( for Tank i )
all
22.Test current Testing function for the current mA signal of the
measuring probe: e.g. ADC = 28A0 = 4.00 mA
If the bubbling-through pipe is not plunged the value
should be near to 4 mA.
Tolerance range is 3.7 ... 4.3 mA.
If out of tolerance range see menu item 9.
Not for
secu4
23. Test relay Testing function for relay switching:
Relay 1 = Off / On + / - / Enter Not for
e-litro
24. Reset Resetting the device software:
- ESC : Leaves this sub-menu without execution.
- Restart : New initialization of the device software,
but parameter setup is left unchanged.
- Factory setting: Complete reset of all parameters back to
the original factory settings.
all
25. Configuration Protected area: Exit with: ‘Cfg:0’[Enter] all
26. Exit Press [Enter] to return to the displaying mode. all
Error messages / Error indication
Display: ‘wait...’
This notification indicates that the connected LITRO-Sensor or the sensorbox is still
in power charging mode. It should disappear after 1 to max. 5 min. and the normal tank
level should be displayed.
Normally the LITRO-Sensor indicates this status with a red-green parallel blinking.
In case the display status remains unchanged for more than 10 min, please unplug the
power plug for at least 10 sec.

V6.x // 06-2016 Setup and Operation P. 15
Error code Meaning
Error E 1 Invalid input value.
Error E 2 Signal value of the LITRO-sensor is too small (signal current less than 3.7 mA).
In case of the secu4 the sensorbox transmits invalid data (probe error).
Disconnect the current supply and turn the device back on. If the error lasts for at
least 5 min. the LITRO-sensor or the sensorbox is defective.
Error E 3 Measuring value of the LITRO-sensor is too high for offset calibration. The probe
must not be plunged! A current of 4.5 mA or higher indicates a probe problem.
Error E 4 Measured value is implausible. Perform menu item ‘9.Offset probe’.
Error E 5 Height input is larger than tank height. (Wrong input)
Error E 6 The measured value is too small for reference. Make sure the probe is plunged.
The appointed height is too big or the measuring value (resp. the filling level) is too
small for setting. Perform step ‘9. Offset probe’. Otherwise probe error.
Error E 7 The measured value is too small for the appointed tank height or tank volume.
Make sure the probe is plunged!
Error E 8 For secu4: The high test pressure during the maintenance check (s. page 20)
was fully reached. This was the aim of the test. So no error is present.
For LITRO-sensor: Wait until the loading phase after the initial start is
completed (max. 5min.). Otherwise the sensor is not connected properly.
Plus (= blue or white or red) => connect to clamp 1.
The second display line shows the signal current. A value larger than 22 mA
(e.g. 25 mA) indicates a clogged or bent measurement line to the buried tank.
Please blow through or replace the measurement line, preferably with the blue
bubbling-through pipe of the e-litro set.
As a TEST the bubbling-through pipe can be disconnected from the LITRO-Sensor.
E8 should disappear with the next pumping action. Otherwise the LITRO-sensor is
defective or it has too much pressure.
Error E 9 The current value is 0 mA. The probe’s connection could be broken.
Check probe connection (polarity) and extension and if necessary reconnect it.
Error E10 Calibration error. Switch off and on the 230V supply voltage after waiting for 5 sec
and retry. Otherwise the LITRO-sensor or the sensorbox is defective.
Error E11 Warning: The liquid level of the tank is too low for an exact calibration
(Press [Enter] to continue anyway).
Error E12 No measurement data is received yet from the external tanks 2, 3 or 4.
In case of secu4 the sensorbox has not sent any data yet. Wait for 3 min.
Error E13 No measurable pump pressure. Disconnect the current supply then reconnect it and
wait for one pumping cycle. If the error E13 remains the micro pump is defective.
Otherwise send in the LITRO-sensor or the sensorbox!
The device is not repairable on site. Do not open the device, loss of warranty!
Error E14 Charging voltage is too low. Wait for 3 min. If necessary disconnect the power
supply for 10s.
Error E15 No data from the sensorbox. Potential disruption of the signal line to the sensorbox.
Error E16 Implausible pressure drop of one of the tank measuring lines (please check!).
Disconnect the power supply for 10s or cancel E16 with OK.
Otherwise the sensorbox is defective.
Error E18 Device function error. The internal test pressure was not reached!
The sensorbox of the secu4 or the LITRO-sensor has to be replaced.
For device type e-litro net

P. 16 Setup and Operation V6.x // 06-2016
Info/Error-Messages at Network Communication
Error N 1 No network communication. Problem with the internal network module.
The device automatically executes a ’reset’for the internal network module
and retries communicating.
Try disconnecting the power supply, wait…and reconnect.
Error N 2 Error in the network communication. Signal destination cannot be reached / data
sending impossible.
Check the connections at the device and at the network router. Check parameter
setup at menu item ‘15.Network’...
Perform the function ’15.Network > Test > Ping: Yes’…
Try to connect a different network device at this network cable, e.g. a Laptop.
If it does not work please contact your network administrator.
Error N2 only occurs in case of a domain like ‘oilview.de’is entered for destination.
In case of entering an individual dest-IP, no Error N2 message will be shown.
Important: The destination address must be a fixed IP address.
Otherwise the device retries sending again and again, caused by an
unreachable destination IP address.
Sending ... ’Sending’is displayed if a data message is currently in process of sending.
The message destination can be setup as an IP address at menu item
‘15.Network => Dest. ...’
‘Sending...’will be displayed periodically caused by an unreachable destination IP.
The destination should be a fixed IP address. IP + Port should be set correctly.
XML-Data: Call the device via browser or program with command IP-address / xml
Relay remote control:
Telecontrol / Teleswitching via relay of the e-litro net device:
The relay can be operated by remote commands from the browser at the ‘config’-page.
Please refer to the additional device parametrization.
Deactive = No switching
Active = State depends on level
On = Makes the relay operate (fix)
Off = Makes the relay release state (fix)

V6.x // 06-2016 Setup and Operation P. 17
For device type e-litro gsm
Error messages GSM module / SIM card / Mobile network
Error M 0 GSM modem is inactive.
Entering PIN => 0000 completely deactivates the modem.
Error M 1 Internal communication error. The device automatically executes an internal RESET
and retries communicating with the internal modem.
Error M 2 SIM card is not inserted, is not readable or is defective.
Please check the SIM card using a mobile phone.
Error M 3 PUK code must be entered. Wrong PIN has been entered three times, SIM-card is
locked. Insert the SIM card in a mobile phone and enter the PUK code to unlock it.
Error M 4 No credit on the prepaid account.
Error M 5 No mobile network available for the SIM card (an external antenna could help).
Destination number set correctly? (please check)
Error M 6 Network or other failure during sending procedure.
Error M 7 Mobile network registration not completed yet.
Error M 8 Interlock is active! In case of too many failed network logins after 7 days only 1 dial-
in trial will be performed on a daily basis for 255 days maximum.
The [Enter] button activates the device for another logon trial.
In case of a successful sending the interlock will be removed.
Error M 9 No destination mobile number configured yet.
#T command or OilView-connection not configured yet.
Relay-
remote control: Telecontrol / Teleswitching via relay of the ‘e-litro gsm’device: The relay can be operated by #S-commands.
Please refer to the additional device parametrization.

P. 18 Setup and Operation V6.x // 06-2016
Electrical connections for e-litro
Electrical connections for secu4
Left clamping block:
Sensorbox connection
[1] = white (plus)
[2] = green (signal)
[3] = brown (minus)
Bottom right clamping block:
Power supply: 230V AC N/L
Clamp contact number:
1: LITRO-sensor input (+)
(red or white or blue)
2: LITRO-sensor input (‒) (brown or black)
3+ 4: Input for a second LITRO-sensor
(this option is not equipped)
Rightmost clamping block: AC 230V N/L supply
= slot for adaptors:
M-BUS ; 0-5 V outlet ;
4-20 mA outlet ; link adaptor

V6.x // 06-2016 Setup and Operation P. 19
Electrical connections for e-litro net / e-litro gsm
Clamp contact number:
1: LITRO-Sensor input (+) (red, white, blue)
2: ditto (‒) (black, brown)
3: data input for additional e-litro device ( + )
4: ditto (‒)
5: alarming contact input ( + )
6: ditto (‒)
7 + 8: relay output: opening contact (normal status is closed)
9 + 10: relay output: closing contact (normal status is open)
Rightmost clamping block: AC 230V N/L supply

P. 20 Setup and Operation V6.x // 06-2016
Regulations, Maintenance and Documentation
Regulations:
Password
for secu4:
§Installation and startup have to be performed by a qualified technician.
§The regulations of the device documentation have to be followed
precisely. The documentation needs to be preserved at the device.
§The device settings are to be performed accurately for all parameters.
The device parameters will be set by a qualified technician once and will
be checked at maintenance.
§During a refill the display warning and alarm signaling need to be
observed carefully by the responsible person (tanker truck driver)!
In case of an alarm the refill needs to be stopped immediately!
§In displaying mode the device is unmanned. Accordingly the device has
no adjustment options accessible from the outside.
Only an alarm-QUIT-button is located at the top of the device.
§The unit functions should be checked regularly e.g. during the boiler
maintenance. This needs to be induced by the operator.
§If the secu4‘s tanker switch off function is used the password needs to
be activated in menu item 8. The password is predefined.
Maintenance:
§Manufacturer’s specification: Perform hardware maintenance at every
tank or boiler maintenance. After expiration of the warranty period
perform maintenance 1 x per year.
§Check the relay switching function via menu item ’23 Test relay’.
§For the measurement value test the filling level of the tank needs to be
determined and compared to the displayed value (cm).
Valid measurement variation <= 2% of a full tank.
§Additionally for secu4:
Fold and hold the measurement hose of tank 1 until the sensorbox has
completed its pumping process…
Check: Then the display has to show Error E008, by means the test
was successful (OK).
Otherwise the check was not successful! In that case
please send in the sensorbox to TECSON to be repaired.
Producer:
TECSON GmbH & Co. KG
Wulfsfelder Weg 2a
D-24242 Felde
Tel. (+49) 4340 / 402530
Fax (+49) 4340 / 402529
www.tecson.de / [e-mail]
The producer conformity certificate is located at
www.tecson.de under menu item ‘Documentation’.