Level switch for pump control - AT 120


The AT 120 is a float switch designed for the automatic control of small pumps (until 1.5 CV) .

Thanks to its wide switching angle of 120º, the BIP STOP protects the pump's engine and the electrical panels from jerking. This feature is highly appreciated in agitated liquids.

Also, AT 120 can detect the both high and low level in the same tank whose hysteresis does not exceed 1.5 meter.

These float level switches are used wherever magnetic level controllers can not be used because of impurities or deposits that may trap the float.

This model is available with a HR HY (High Resistance) press-vulcanised housing for applications in aggressive liquids (acids, solvents, hydrocarbons, etc .) See AT 120 HR HY

The AT 120 level switch is available in three versions :

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(1) VR :  Emptying/Filling

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(2) VT : Emptying + ground wire


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(3) VS : Special emptying mode with multifunction plug

The AT 120 VR is the standard version. On request, it can be equipped with a cable with ground wire with plug multifunction  to activate the pump by connecting it directly from the plug of the float.

Very reliable, it is used in a wide range of applications ...


- Accessories -


Externals ballasts :

The role of the adjustable ballasts is to define the pivot point of the float level switch. They are necessary to ensure the proper functioning of floats when the cable is hanging freely without any fixation.

This is most likely the case of the AT 120 of float level switches. This is the reason why for these models, the ballasts are proposed in option

The ballasts can be adjusted closer or farther to the float switch depending on the liquid agitation involved and if a very precise level measurement is required

Pay attention to the use of collars or other elements to replace the ballasts, which can hurt the cable and also damage the device.

- Loaded resin ballast 175/250 grs -

Tilt level switches
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Z.A. de l'Observatoire
78180 Montigny le Bretonneux
telephone+33 (0)1 61 37 35 60
e-mail sales@atmi.fr
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