Tecson LX-2, LX-2-R Mounting And Instructions

Tank-Spion Digital LX-2

Measuring an monitoring device for tank contents.

Type option: LX-2-R - with 2 relays aditionally.

Mounting and Instructions

Content:

IN GENERAL 1

STRUCTURE 2

LIQUIDS 2

LABELING 2

MOUNTING INSTRUCTIONS 2

MOUNTING OF MEASURING PROBE 3

ELECTRIC INSTALLATION 3

AUTOM. CHANGEOVER OF TANKS 4

INITIAL SETUP 5

SETUP MENU, COMPL. 7

ERROR CODES 10

FUNCTION CHECK 11

TECHNICAL DATA 11

ACCESSORIES 11

CONNECTION PLAN 12

Page:

IN GENERAL

The tank content display device LX-2 or LX-2-R is to be used for monitoring of tank levels in
pressureless liquid tanks. Aditional functions to liter displaying are e.g. temperature measuring,
data transmission or linking to facility management systems.

The LX-2-R type additionally provides two output relays, e.g. for controlling an alert unit, for
switching magnetic valve or dry protection of pump.

The displayed liter values are not to be used for billing purpose.
For the intended use and to abide the rules for warranty do strictly follow the Mounting and

Instructions, which have to be handed out to the owner.

P. 1 LX-2 / LX-2-R Mounting and Instructions

Version: 07-2009

STRUCTURE

The LX-2 (-R) has an eight characters LCD display and a measuring input for a level probe.
The LX-2-R type additionally provides 2 programable relays, with opening and closing contacts.
The measuring probe can be mounted with a screw joint of R1 “ or R1½ “.
A reduction for 2“ is not included in scope of delivery.

LIQUIDS

Liquid Liquid

Heating oil
Diesel oil
Bio Diesel oil
Plant oil
Petroleum

Carbamide dissolution

DIN EN 51603-1
DIN EN 590
DIN EN 14214
* after consulting
Flash point > 55°C

e.g. AdBlue

LABELING

Confirming to EN 50081-1 , EN 50082-1 and EN 61010-1 / A2

MOUNTING INSTRUCTIONS

Only qualifyed persons are allowed to install the measuring probe and to connect the display
device. Follow the regulation for each liquid, especially for the risk of water pollution and for
flammable liquids.
Condition for proper operation of measuring device is a professional installation. Follow the
technical rules for planning, construction and operation of the entire facility. Additionally follow the
rules for tank mounting and operation.

• Condition for proper operation is a pressureless storage tank. The tank must have proper
ventilation. Oil tanks and gasoline tanks must be equipped with a level limiter.

• The cable entry in the tank has to be made watertight and vapor tight by using PTFE sealing
tape.

• The measuring probe and display device are not safety devices. They do not replace the level
limiter of a tank.

• Installation of the display device in explosive zones is not permitted.
In that case ask for an EEx-probe with Zener barrier. The tank probe must be mounted inside
the tank with a cable protection pipe.

• The display device is connected to 230V AC. Operating is only permitted with closed box lid.

In case of inappropriate installation you lose any warranty.

Motor oil
Hydraulic oil
Glycerin
Glycol
Water

Gasoline with
flash point < 55°C

No used oil !

Only with EEx-probe
and Zener barrier

P. 2 LX-2 / LX-2-R Mounting and Instructions

Version: 07-2009

MOUNTING OF MEASURING PROBE

• In case of cellar steal tanks or subgrounded tanks use the included
screwing joint for mounting the measuring probe.

• If an old fuel gauge was used dismount it and use the tank screwing port.

• Subgrounded tanks normally provide an idle screwing port. In that case

dismount the dummy plug.

Mounting:

• In case of a heating oil tank switch off the oil burner and lock the suction
pipe if necessary.

• Clear the tank’s screwing port.

• Put the cable of the probe through the screwing joint. Put the measuring

probe into the tank.

• Mount the screwing joint with PTFE sealing tape.

• Sink the measuring probe down to the ground of the tank. Fix the cable

with the PG screwing. The measuring probe may optionally lay or stand on
the ground of the tank.

• Zero-point calibration is not required in normal case.

• If nessecary unlock the suction pipe, switch on the oil burner and check

the functions.

ELECTRIC INSTALLATION

Interconnection of measuring probe to display device

Probe supply: DC 15 – 24 V
Connection: Connect the 2-wire probe cable in the way:

Red(+) => clamp 1 , Black (-) => clamp 2.

Air capillary: The air capillary must have ventilation to atmosphere.

The end of the probe’s cable and the air capillary must
be protected against humidity.

Extension: The cable of the probe can be extended up to 100 m,

e.g. with NYM or YR or NYY.
Line diameter at least 2 x 0,4 mm².
In case of cable extension in a manhole or outdoors
it is recommended to use a waterproof clamp box with
special air pressure ventilation (accessories).

Shielding: Near by power current cables it is recommended to use

a shielded probe signal line. (Cable shielding has to be
grounded.)

Supply voltage:

Voltage: AC 230 V 50 Hz
Clamps: PE (protective conductor), N (neutral conductor),

L (phase).
Power line is not included in accessories.

P. 3 LX-2 / LX-2-R Mounting and Instructions

Refer to last page.

The capillary in the
probe’s cable must
have ventilation.
The capillary filter
stays attached !

Refer to probe
instructions.

Version: 07-2009

LX-2-R :

Relay connection

The LX-2-R type has two relays for controlling
external electric circuits or for alert signaling.

In case of failure or minimum level (or temperature
limit) the relay outputs 6-7 and 9-10 are linked and
the relay outputs 5-6 and 8-9 are opened; refer to
PCB print.

Normal state / Event state Normal state / Event state
Relay 1 Clamp 5 - 6 opened / Contact links Clamp 6 – 7 linked / Contact opens
Relay 2 Clamp 8 - 9 opened / Contact links Clamp 9 -10 linked / Contact opens
Voltage Max. 250 V AC
Current Max. 3,5 A

AUTOM. CHANGEOVER OF TANKS

Example

LX-2-R

P. 4 LX-2 / LX-2-R Mounting and Instructions

Version: 07-2009