Versatile model for normally horizontal or inclined mounting. The capacitive levels indicators L-E4S are to be used to control the maximum or minimum level of bulk solids in silos or vessels.

The model L-E4S has a Stainless Steel rod recovered of PTFE and the devices can have a shaft up to 2.000 mm length depending of the product to control.

It is not recommended for sticky solids or products that have the tendency to settle over probe.

The rod must to be exposed to the material. When the level of product reaches the rod, the control unit reverses the signal due to a change of the capacity of the environment.

When the product disappear from the detection range, the signal turns to the initial position.

These devices have inside the housing a regulation system that allow the adjustment of the sensitivity due to a nut in the electronic module.

The device can be mounted horizontally or vertically depending on the model.

The normal installation is by screwing the device onto the deposit wall, with a mounting flange or with an appropiate support to fix it. For a proper function, the device should be installed with a 20º to 30º slope from the horizontal onto the silo wall to to facilitate the flow of the material and to prevent the material from remaining over the probe.


Approximate measures given in mm.

Technical data

NameCapacitive level indicator
TypeL-E4S – ref: 2170-4S
Supply voltageStandard 230 V AC (50 – 60 Hz)
(Under request 115 V AC, 24 V AC, 12 – 35 V DC)
Power consumption1 VA
Cable entry2 de M20x1,5
Relay output 1 NO + 1 NC
1 A / 250 V AC
Function statusUnder voltage: green LED
Relay enabled: red LED
Product temperature-10° C – +90° C
(Under request up to +150º C)
Ambient temperature -10° C – +60° C
Container pressure+5 bar
ProtectionIP65 according to DIN EN60529
Weight1,40 Kg depending on the model
RodStainless Steel 1.4305
Rod coverPTFE

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