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• Endress+hauser comes thorugh with liquiphant t ftl 260, a level switch for liquids, of which more than 1 million units have been sold across the globe. One of the main reasons for this success is that the level limit switch liquiphant t is universally applicable. It is used in all those applications where float switches are unsuited because of buildup, air bubblesturbulences, currents, etc. The fork of the liquiphant is driven by a piezoelectric crystal to vibrate with its resonance frequency of 400hz in air. When submerged in a liquid, the filling material changes the oscillation frequency. The fork swings then at a frequency between 120 hz to 350 hz in liquids. This change in frequency is the basis for the measurement in levels. Outside this frequency range the instrument will recognise a malfunction and will indicate the alarm. The change in oscillation frequency happens during immersion due to the change of the density from air into liquid as well as the length of the fork. A non-stop operation of the liquiphant is guaranteed if the minimum density of the liquid is more than 0.7 g/cm3 and with a viscosity of up to 10000 mm2/s. The switching signal is either a pnp transistor or a two wire ac (19 - 253 v) output. Tuning forks, used in level measurement, are mounted close to the height of the limit and or lower levels, usually at the side of the silo. The mounting position should be considered so that the filling does not affect the function of the sensor. If some basic rules are considered, these tuning forks are universal and reliable limit switches. Solid state electronics require no setup, no maintenance, no calibration or trained personnel..
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T products division excom house, ground floor (south wing), 7 saki vihar road, andheri (e),,
Mumbai-400072,Maharashtra
Tel: 91-022-8521458
Fax: 91-022-8521927
Send : On-Line Trade Inquiry
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