A pair of electrical conductors of dissimilar materials, joined at one end (the measuring or hot junction), which produces an electromotive force (e.m.f.) due to the Seebeck effect in a circuit formed by connecting the other ends of the dissimilar materials used (the reference or cold junction) to a device for measuring e.m.f. Def. acc. to IEC 902 1987.
A physical object that is a pressure-tight receptacle adapted to receive a temperature sensing element, provided with external threads or other means for pressure-tight attachment to a vessel or pipe.
A timepiece that measures a time interval and signals its end; a time-switch.
A physical object that is an element that receives a process variable signal from a sensor and converts it into an output signal.
A pilot switch intended to create a switch action at a pre-set value.
A velocity flow meter that uses a multi bladed rotor to measure fluid flow rate in units of volumetric flow through a closed conduit.
A transmitter specially designed to convert the signal in a turbine meter into a standardized output signal.
A velocity flow meter that measures the velocity of a flow by measuring the time difference between an ultrasonic pulse sent in the flow direction and an ultrasound pulse sent opposite the flow direction.
A flow transmitter providing electrical outputs that are proportional to the flow inputs from an ultrasonic flow meter.
An element intended to determine a level based on ultrasonic sound waves.
A level transmitter that is using ultrasonic sound to continuously monitor the level of a liquid or particulate matter in a tank or vessel.
A differential pressure flow meter that uses a v-cone as the restriction body in the flow stream.
An analyser intended to determine a vapor pressure.
A pipe or tube that has a constriction with a relative long passage with a smooth coned entry and exit.
A detecting element that is intended to sense mechanical vibration and in which the oscillating motion is transferred into a voltage or current signal.
A switch intended to give a on/off signal when vibration level have reached a pre-set value.
A transmitter of which the output is proportional to a measured vibration.
An analysing instrument intended to determine the viscosity of a fluid.
A signal converter that is intended for converting an input voltage signal into an output current signal.
An instrument transformer in which the secondary voltage, in normal conditions of use, is substantially proportional to the primary voltage and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections.
A transmitter which output is relative to a measured voltage.
A flow meter that measures the velocity of a fluid in a pipe by detecting the frequency of vortices being shed from a specially shaped obstructing element in the fluid stream.
A transmitter specially designed to convert the signal in a vortex flow meter into a standardized output signal.
A transmitter for weighing large quantities of material, and of which the output is proportional to the measured weight. .
A detecting element that can be the sensing element of an anemometer or wind gauge.