A-100

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A-100

Control of solids
Membrane level indicators

Intended use

Membrane level indicator with small dimensions. Is to be used to control the maximum or minimum level of bulk solids in silos or vessels or control the flow and obstructions in tubes, pipes, conveyors, etc.

These controllers consist of a switch actuated by a membrane and it is recommended for dusty and powdery, granulated and grainy bulk goods like dust, flour, grain, sand, plastic, etc. with an easy flow and a bulk density from 0.3 to 1 t/m³.

Function

The membrane must to be exposed to the material.

The movement of the switch is the result of the pressure exerted by the incoming bulk material against the membrane which forces the membrane to move backwards, reversing the position of the switch and the signal is used for example to control the transport system in the silo.

The models “A-100”, “AD”, “SR” y “CD2M” and the models with S.S. membrane have a regulation system by a spring that allows the adjustment of the sensitivity. Tightening the regulation nut to reduce the sensitivity and increase the strain of the material to activate the microswitch. Clockwise insensitive.

The models are adjusted at their maximum sensitivity. It is necessary to ensure the proper pressure to the membrane that returns the membrane when there is no product covering it.

Mechanical connection

Drill holes in the silo or vessel and mount the indicator using screws, rods, fasteners or nuts making sure of the easy flow of the material and ensure that the product leaves the membrane without product on it.

Dimensions

Approximate measures given in mm.

Technical data


Name	Membrane level indicator
Type	A-100 – ref: 2210...
Density of the product	0,3 t/m³ – 2,5 t/m³
Ambient pressure	Atmospherical
Maximum pressure	+0,5 bar
Cable entry	Ø 9 mm Cable gland M12x1.5 depending on the model
Maximum voltage	250 V AC
Contact function	1 NO + 1 NC
Capacity of the contact	5 A / 250 V AC (for resistive loads) For inductive or capacitive loads reduce at 50%
Ambient temperature	-10º C – +60º C
Protection	IP44 according to DIN EN60529
Weight:	0,2 Kg
Sensitivity	20 – 60 g adjustable
Materials:
Housing	ABS
Membrane	NBR (Under request Viton)