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Intended use

The level indicator observes the filling level as a limit switch in silos and vessels. It can be used as a full and empty indicator for dusty and powdery, granulated and grainy bulk goods with a maximum grain size up to 100 mm and with a bulk density of 0.3 to 3 t/m3.

The models are certificated for use in potentially explosive Dust and Gas atmospheres as well as in hybride mixtures (Dust + Gas) hazardous areas.


Technical data

Name Pendulum level indicator
Type MS-1… – ref: 2305-A-…
B1 Dust ATEX II 1/2D Ex ta/tb IIIC T80 °C Da/Db
B5 Gas+Dust ATEX II 1/2D Ex ta/tb IIIC T80 °C Da/Db
ATEX 2G Ex ib IIB T6 Gb
Rod length Standard 500 mm
(Other lengths under request)
Product density 0,3 t/m3 – 3 t/m3
Maximum pressure +0,5 bar
Cable entry M20x1,5
Switching voltage 250 V AC
Switching function 1 NO + 1 NC
Capacity of the contact:
B1 4 A / 250 V AC (for resistive loads)
For inductive or capacitive loads
B5 Uo < 30 V DC; Ii < 100 mA
Bulk good temperature -25° C – +80° C
Ambient temperature -20° C – +70° C
Protection IP66 according to DIN EN60529
Weight 1,15 Kg depending on the model
Housing Aluminium, RAL 7001 coated
Rod Aluminium
(Under request Stainless Steel)
Cone Aluminium
(Under request Stainless Steel)
Folding bellow NBR
Cable gland Niquel-plated Brass