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Amplifier and comparator chips are board-level components for amplifying voltage, current, or power.
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Analog-to-digital converters (ADC) sample an analog signal and convert it to a series of digital values to represent the signal to a computer processor.
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Batch controllers maintain the correct size of a discrete batch of process material, such as the volume of a liquid. They are often interfaced with sensors such as load cells, or with volumetric flow meters.
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Bridge conditioners are instruments that provide excitation and support for strain gages, Wheatstone bridges, load cells, and sensors. They also include circuitry for signal conditioning, amplification, and processing.
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Chart recorders and strip charts are data acquisition tools used to generate a plot, graph or other visualization of data versus time.
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Computer workstations are client computers that connect to a network and share data with other machines. They are used in applications such as computer-aided design (CAD), computer-aided manufacturing (CAM), graphic design, software development, medical imaging, and point of sale (POS) systems.
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Computers are programmable electronic devices that accept data, execute prerecorded instructions, perform mathematical and logical operations, and output results.
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Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system.
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Current loop converters convert an analog or digital signal to a current loop output such as 4-20 mA or 0-20 mA.
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Current-to-voltage converters scale and convert current signal input to the desired output voltage range.
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Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.
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Data acquisition I/O modules or cards have both input and output functionality. Digital or discrete I/O modules include on-off signals used in communication, user interface, or control.
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Data acquisition input modules accept sensor and other signal output for data acquisition systems. They may include signal conditioning prior to the analog-to-digital conversion stage.
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Data acquisition output modules or cards transfer amplified, conditioned, or digitized signals.
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Data acquisition systems and instruments collect, digitize and process multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes.
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Data loggers and data recorders acquire digital data from sensors and other signals. They are primarily used to store data for subsequent downloads to a host PC, but may also include real-time features such as monitors and alarms.
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DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies.
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DC-DC converters accept DC input and provide regulated and/or isolated DC output in various applications including computer flash memory, telecommunications equipment, and process control systems.
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Digital panel meters measure and display processes and electrical variables via an alphanumeric digital readout.
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Digital thermometers are portable temperature sensing devices that have permanent probes and a digital display.
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Digital-to-analog converters (DAC) transform a digital number into a corresponding analog voltage or current.
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Electric valve actuators mount on valves which, in response to a signal, automatically move to a desired position using an outside power source. Single-phase or three-phase AC or DC motors drive a combination of gears to generate the desired torque level.
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Electrohydraulic valve actuators and hydraulic valve actuators convert fluid pressure supply pressure into motion.
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Electromechanical relays are devices that complete or interrupt a circuit by physically moving electrical contacts into contact with each other.
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Environmental controllers control environmental factors such as temperature, humidity, and air pressure. The environment to control can be an office or workspace, or inside a chamber for testing or process purposes.
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Equipment repair services provide in-house or on-site repair and refurbishment services.
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Flow controllers monitor and maintain flow-rate variables, typically in process applications.
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Frequency converters and translators scale and/or filter frequency inputs to produce outputs signals with frequencies that are a function of the inputs.
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Frequency-to-current converters accept a frequency (an AC signal) and produce an output current whose value is a function of the input frequency.
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Frequency-to-voltage converters accept a signal and convert its frequency to a corresponding analog voltage level.
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Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service.
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Human machine interfaces (HMI) are operator interface terminals with which users interact in order to control other devices.
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Humidity controllers monitor and maintain proper humidity levels in environmental test applications, food storage areas, and electronic equipment rooms.
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Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves.
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Industrial computer monitors are ruggedized for use in control room, factory floor, or process applications.
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Industrial computers are similar to personal computers (PC), but they are intended for use on a factory floor or in other harsh environments.
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Industrial valves are classified in many different ways. They can be distinguished by material of construction, media handled, and/or application.
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Linear power supplies accept AC inputs and provide one or more DC outputs for a wide variety of computer and industrial applications. They use an active element (normally a power transistor) operating in its linear region to generate a desired voltage.
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Linear variable differential transformer (LVDT) and rotary variable differential transformer (RVDT) signal conditioners are devices that translate the linear or rotary movement of a ferromagnetic armature into an AC voltage that is proportional to the armature position.
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Mixing valves combine the flow of two or more inlets into a single outlet for applications such as temperature and concentration control.
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Motor contactors are relays with large current capacity for connecting and disconnecting a motor from the power supply. Typically, motor contractors are multi-pole for control of all current carrying conductors.
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Motor starters and contactors are motor-starting devices. They combine a contactor with overload protection and are designed for starting AC or DC motors.
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Network media converters change the signal of encoded data from one media type to another as it is transmitted through, or between, networks.
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Panel PCs are specialized computers that are designed for industrial applications. The personal computer or PC is embedded in a flange or panel, allowing operators to monitor or manage industrial processes.
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Plasma power supplies are DC and RF devices used in plasma generation equipment for applications such as sputtering, plasma etching, physical vapor deposition (PVD) coating, and chemical vapor deposition (CVD) coating.
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Power supplies are devices that produce AC or DC power. This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters.
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Pressure controllers accept input from pressure sensors, transmitters, gauges, and other devices and subsequently control adjustment to the pressure to maintain or achieve the desired pressure level.
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Programmable logic controllers (PLCs) are the control hubs for a wide variety of automated systems and processes. They use a wide variety of inputs and outputs and provide network capability.
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Resistance temperature detector (RTD) temperature transmitters convert RTD resistance measurements to current signals, eliminating the problems inherent in RTD signal transmission via lead resistance.
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Sample-and-hold amplifiers freeze analog voltage instantly. During this process the HOLD command is issued and analog voltage is available for an extended period.
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Silicon controlled rectifier (SCR) power controllers precisely regulate output power to resistive heating loads such as industrial furnaces and ovens. They generally operate on either zero-crossing or phase angle control.
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Sensor multiplexers allow the signal delivered to an instrument to be scanned or switched between multiple sensors. The multi-channel testing of multiple sensors/samples increases sample throughput and the productivity of costly instrumentation.
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Sensor transmitters are measurement or signal conditioning packages that provide a standard, calibrated output from a sensor or transducer in the form of a current loop output (e.g., 4-20 mA).
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Signal amplifiers accept signals from sensors and other devices and amplify them to levels suitable for further processing or digitization by computer elements.
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Signal conditioning products provide amplification, filtering, converting, and other processes required to make sensor output suitable for reading by computer boards.
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Signal converters contain inputs for one type of signal and outputs of another. Features can also include filtering and amplification or attenuation.
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Signal filters block or decrease (attenuate) unwanted frequencies or signal wave characteristics.
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Signal isolators must be used when connecting grounded signal sources to grounded signal followers. If the speed control input of an adjustable frequency drive is grounded, any input signal must be ungrounded.
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Solid state relays (SSR) or semiconductor relays are semiconductor devices that can be used in place of mechanical relays to switch electricity to a load in many applications.
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Specialty industrial process controllers are used in unlisted, specialized or proprietary applications.
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Steam valves are used to control the flow and pressure level of steam and heated water vapor.
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Switching power supplies are DC sources that use a switching element (normally a power transistor) to generate the desired voltage. Switching power supplies are also called switch-mode products or switching mode power supplies (SMPS).
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Temperature controllers accept inputs from temperature sensors or thermometers, and then output a control signal to keep the temperature at the desired level.
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Temperature indicating products include labels, paints, crayons, or other markers that change color or shape when exposed to a certain temperature. Temperature indicating products are typically non-reversible and are designed for one-time use.
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Temperature indicators and temperature instruments are designed for temperature monitoring and analysis. These devices either come equipped with an integral sensor, or require sensor input.
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Temperature instruments use contact or noncontact methods to measure temperature. Products include dial, digital, industrial and laboratory thermometers; temperature probes, indicators, and sensors; RTD elements and transmitters; and thermistors, thermocouples, thermopiles, and thermal switches.
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Temperature signal conditioners accept outputs from temperature measurement devices such as resistance temperature detectors (RTDs), thermocouples, and thermistors. They then filter, amplify, and/or convert these outputs to digital signals, or to levels suitable for digitization.
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Terminal blocks are modular, insulated blocks that secure two or more wires together. Terminal blocks consist of an insulating body and a clamping device. Their flexibility allows wiring to be centralized and makes it easier to maintain complex control circuits.
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Thermocouple temperature transmitters convert the small millivolt output of a thermocouple to a current signal (typically 4-20 mADC) that is immune to noise and voltage drops over a long distance.
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Touch screen displays are user-friendly input devices. The user touches the screen and the input is communicated directly to the computer.
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Universal process controllers constitute a broad area of control devices that may be employed in the monitoring and control of many different process variables, including temperature, pressure, flow and other values.
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Valve actuators mount on valves and, in response to a signal, move a valve to a desired position using an outside power source.
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Voltage converters and voltage inverters accept voltage input and provide a scaled voltage output. Conversion types include scaling up a low-level signal, voltage doubling, and inversion (converting a positive voltage to negative and vice versa).
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Voltage-to-frequency converters accept a voltage signal and convert its analog level to a signal with a corresponding frequency.
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Water valves are designed to handle and control hot water, cold water, ground water, potable water, salt water and/or wastewater. They are made from metal or plastic.
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