9
measuring instruments and apparatus, particularly for measuring pressure, absolute pressure, differential pressure, temperature, density, ph-value, quantity, particularly flow volume, humidity, force, acceleration, path, angle, velocity or level, charging level; manometers, mano-vacuum meters, barometers, altimeters, thermometers (not for medical purposes), thermo-hydrometers, hydrometers, pressure sensors, flow meters, pressure gauges (measuring apparatus), measuring converters (measuring apparatus); electric measuring transducers with electronic output signals, in particular pressure measuring transducers, differential pressure transducers, level measuring transducers, remote indicators, control and regulating apparatus, flow monitors (checking apparatus), electric relays, electric contactors, switches; position controllers; pressure controllers; electrotechnical and fluidic equipment and apparatus (included in class 9), namely feed apparatus, amplifiers, circuitry, circuit elements and registering apparatus; calibrators and calibration devices, in particular pressure compensators; electric switches, in particular pressure switches, limit switches, level switches, non-contact magnetic switches, optical, inductive and capacitive switches, electric switches designed as floating switches, operation control instruments or indicators of the presence of metals; electric switching equipment for level control of liquids on the basis of the electrical conductivity of the liquid concerned; testing bays; electric and electronic control apparatus for speed counting, speed control, stop-motion detecting, revolution-safety monitoring, level indication, limit monitoring, phase control, machine control and machine monitoring; electric and electronic control apparatus, time relays
42
calibration and functional testing of measuring instruments