MS-1 ATEX

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ATEX controllers
MS-1 ATEX

MS-1 ATEX

ATEX controllers
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Control of solids

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.

Function

The cone sensor must to be exposed to the material. The bulk goods, being dumped beside the pendulum, move the pendulum more aside as the filling level increases. This movement, approximetly 10 o of the rod- sensor, activates the switch for the full indication.

When the filling level falls, the pendulum moves back in the vertical position and the switch is disengaged.

The models have a regulation system by a spring that allows the adjusment of the sensitivity. Tightening the regulation nut to reduce the sensitivity and increase the strain of the material to activate the microswitch. Clockwise insensitive.

Mechanical connection

Drill 4 holes in the top of the silo or vessel and mount the indicator using screws, rods, fasteners or nuts M6 making sure of the verical position of the rod.

Dimensions

Approximate measures given in mm.

Technical data


Name	Pendulum level indicator
Type	MS-1... – ref: 2305-A-...
Certifications:
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
Materials:
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