FIELD: examination of liquid (L) at variation of temperature or pressure, applicable in domestic electroheaters.
SUBSTANCE: the device (D) has a vessel (V) for L, heating element (HE) and a control system of the HE. The control system (CS) has a primary transducer and an actuating member. The novelty is in making of the primary transducer in the form of a sensor (S) for measurement of the physical quantity characterizing the property of L, for example, of the conductance, dielectric constant, it is positioned in point V or HE. The device may have a means of protection of HE against excess of temperature and consumed current installed in contact with HE. The CS is installed on the HE. The vessel in the device may be made of the flow-through type, and the HE - of the immersion type.
EFFECT: the distinguishes expand the potentials of the D by excluding the dependence on temperature, shape and dimensions of the vessel, as well as increase the range of the examined liquids and the depth of these examinations.
6 cl, 3 dwg
