Pressure instruments, industrial process type Potentiometric self-balancing instruments, except X-Y plottersĬontrollers for process variables: electric, electronic, and pneumaticĬoulometric analyzers, industrial process type Panelboard indicators, recorders and controllers: receiver typeĬomputer interface equipment for industrial process control Magnetic flow meters, industrial process typeīoiler controls: industrial, power, and marine typeīuoyancy instruments, industrial process typeĬombustion control instruments, except commercial and household Liquid level instruments, industrial process typeĪnnunciators, relay and solid-state types: industrial display Liquid concentration instruments, industrial process type Establishments primarily engaged in manufacturing electrical integrating meters are classified in Industry 3825 those manufacturing residential and commercial comfort controls are classified in Industry 3822 those manufacturing all liquid-in-glass and bimetal thermometers and glass hydrometers are classified in Industry 3829 those manufacturing recorder charts are classified in Industry Group 275 and those manufacturing analytical and optical instruments are classified in Industries 38.Ībsorption analyzers, industrial process type: e.g., infrared, X-ray These instruments operate mechanically, pneumatically, electronically, or electrically to measure process variables, such as temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, alkalinity, specific gravity, gas and liquid concentration, sequence, time interval, mechanical motion, and rotation. Industry: 3823-Industrial Instruments for Measurement, Display, and Control of Process Variables and Related ProductsEstablishments primarily engaged in manufacturing industrial instruments and related products for measuring, displaying (indicating and/or recording), transmitting, and controlling process variables in manufacturing, energy conversion, and public service utilities.
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