P. 4
LX-(Q)-GSM / LX-(Q)-NET Techn. Docum. + Installation
01-2016
Probe box :
To be used
- outdoors
- in manhole pit (buried tanks)
- in damp locations.
The probe box must be wa-
tertight and ventilated
(for pressure balance of the
hydrostatic level probe).
ELECTRIC INSTALLATION
Interconnection of measuring probe to display device
Probe supply: Low-voltage DC
Connection:
Connect the 2-wire probe cable as follows:
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 (damp location) or NYY (soil).
Line diameter at least 2 x 0.4 mm².
In case of cable extension in a manhole pit or out-
doors it is recommended to use a waterproof clamp
box with special air pressure ventilation (accessories).
Shielding:
Near to power lines 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).
Cable is not included in scope of delivery.
Refer to the figure on the
following page.
The capillary in the
probe’s cable must
have ventilation.
The capillary filter stays
attached!
Refer to probe instruc-
tions.
Caution:
Do never connect de-
vice type DC 24V or
12V to 230V.
