RTD Sensors in Industrial Applications

False (B)

0.385 Ω/°C

<p>0°C</p> Signup and view all the answers

<p>Industrial standard = IEC 60751 Typical measuring current = 1 mA or less Maximum safe measuring current = 5 mA Resistance change at 0°C = 100 Ω</p> Signup and view all the answers

<p>3-wire (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Inherent inaccuracy due to lead resistance.</p> Signup and view all the answers

<p>leads</p> Signup and view all the answers

<p>2-wire (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>2-Wire = Simplest, least accurate 3-Wire = Common, compensates for lead resistance 4-Wire = Used for highest precision</p> Signup and view all the answers

<p>By using a compensation loop to account for lead resistance.</p> Signup and view all the answers

<p>The methods used to transform raw materials into finished goods (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>To control process variables</p> Signup and view all the answers

<p>Oxygen and firing rate sensors, control panel, actuator or VSD system (D)</p> Signup and view all the answers

<p>variability</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Single-point positioning, jackshaft-type combustion controls or with parallel positioning or alternate fuel firing</p> Signup and view all the answers

<p>Chemical Industry = Producing plastics Oil and Gas Industry = Refining crude oil Food and Beverage Industry = Canning fruits Pharmaceutical Industry = Manufacturing drugs</p> Signup and view all the answers

<p>To increase product variability (B)</p> Signup and view all the answers

<p>PLC</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Oxygen sensor = Measures oxygen levels in the system Control panel = Houses the PLC Actuator or VSD = Trims fuel or airflow</p> Signup and view all the answers

<p>Chernobyl nuclear plant disaster</p> Signup and view all the answers

<p>Converts pressure into an electrical signal (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Nickel</p> Signup and view all the answers

<p>Nickel-Chromium Aluminum</p> Signup and view all the answers

<p>-270 to 1372°C (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Clean oxidizing or inert (C)</p> Signup and view all the answers

<p>Pressure transducer = Converts pressure into an electrical signal Ni-Gr = Contains nickel, is magnetic Nickel-Chromium Aluminum = Used for wide range temperature calibration Low temperature recommendation = Not suggested</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The resistance wire might deform due to temperature changes. (C)</p> Signup and view all the answers

<p>Platinum</p> Signup and view all the answers

<p>ceramic</p> Signup and view all the answers

<p>Wire-wound RTD = Resistance wire wound around an insulated cylindrical core. Coiled element RTD = Resistance wire rolled into coils and placed within a ceramic form. Laboratory-grade RTD = Loosely wound resistance wire on a non-conductive support.</p> Signup and view all the answers

<p>Non-conductive powder (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Deformation of resistance wire</p> Signup and view all the answers

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Methods to change raw materials into usable products.

Basic substances used in the production process.

Industries involved in the conversion of raw materials.

Methods to manage variables during product manufacturing.

Minimizing differences in product quality.

Using fewer resources to produce more products.

Controlling processes to prevent accidents.

Instruments used to monitor and manage process variables.

A type of RTD where resistance wire is wound around a core.

Material that changes resistance with temperature, used in RTDs.

Stress on a material which can alter its properties like resistance.

Highly accurate RTDs used for precise measurements in labs.

A material that does not conduct electricity, used in RTDs.

RTD design where the resistance wire is shaped into coils.

RTDs designed for high precision, used in laboratory settings.

A type of resistance wire made from platinum, used in RTDs.

Resistance increases as the temperature of the sensor increases.

A Resistance Temperature Detector (RTD) measures temperature by correlating resistance with temperature change.

Platinum RTDs typically conform to the IEC 60751 standard.

Commercial platinum grades exhibit a resistance change of 0.385 ohms/°C.

An RTD does not produce an output on its own; it requires external devices for measurement.

A device that converts pressure into an electrical signal.

Characteristics of materials that can be attracted or repelled by a magnet.

The process of adjusting an instrument to ensure its accuracy.

The set limits within which a device can operate effectively.

The representation of data transmitted in electrical form.

Atmospheric conditions that facilitate oxidation or rusting.

An environment where there is no matter or very low pressure.

Conditions where temperatures drop significantly below normal levels.

A lead configuration used for basic measurements, less accurate due to wire resistance.

The most common lead configuration that compensates for lead resistance.

A lead configuration used for high precision measurements, eliminating lead resistance effects.

Inherent resistance of the sensor leads impacting measurement accuracy.

A mechanism used in three-wire sensors to counteract lead resistance.

The degree to which a sensor measures true values.

Methods used to gauge the value measured by sensors.

Where resistance temperature detectors are employed, varying in accuracy needs.

A system used for controlling multiple combustion elements in unison.

Regulates the combustion rate based on demand or conditions.

An electronic system that controls motor speed to optimize performance.

A device that measures oxygen levels to optimize combustion.

System designed to manage the amount of solid fuel burned for reduced emissions.