This document provides guidance on selecting the appropriate temperature readout device for calibration needs. Key factors to consider include accuracy, measurement errors, resolution, linearity, stability, calibration requirements, traceability, and convenience features. Using the right readout is important for efficient, accurate temperature measurements within budget.
Fluke Calibration on How to Calibrate an RTD Using a Dry block Calibrator Web...Transcat
This document provides guidance on how to calibrate an RTD (resistance temperature detector) using a dry-block calibrator. It discusses potential sources of error from a dry-block like immersion depth, stem conduction, contact issues and temperature non-uniformity. It recommends fully immersing probes, maintaining consistent depths between the RTD and reference probe, and accounting for uncertainties. The document then walks through calculating uncertainties, addressing odd shaped probes, temperature ranges, and provides an example of a three-point RTD calibration using a dry-block and software.
In-Situ Calibration: Methods & Pitfalls of Thermal Mass Flow Meter Sensor Fie...Sierra Instruments
A unique and highly marketed benefit of thermal mass flow meter technology is “in-situ” or “in place” flow meter calibration. This certainly sounds like an alluring proposition to save time and money by avoiding the expense of returning the instrument to the factory for annual recalibration and recertification. But, not all methods of in-situ calibration validation are created equal!
In this white paper, Sierra Instruments examines five common methods of thermal mass flow meter in-situ calibration validation to help you make an informed decision for your business.
The document introduces different types of humidity sensor technologies, including thermoset and thermoplastic sensors, lithium chloride sensors, and aluminum oxide sensors. It compares various sensor materials and discusses their accuracy, temperature range, response time, and other specifications. Finally, it provides information on Honeywell's humidity sensor product portfolio and recommendations for selecting the appropriate sensor.
How to Calibrate an RTD Using a Dry Block Calibrator v2Transcat
Transcat and Ron Ainsworth of Fluke Calibration detail the steps and considerations necessary for the calibration of an RTD with a Dry Block Calibrator.
Industrial Temperature Calibration Selection Guide by Fluke CalibrationFluke Calibration
The Industrial Temperature Calibration Selection Guide includes information on:
Field metrology wells
Infrared calibrators
Handheld and field dry-wells
Micro-baths
Environmental monitoring
Thermometer readouts
Reference sensors Industrial temperature calibration selection guide Tools
How to Maintain Your Temperature Calibration Equipment WebinarTranscat
In this informative webinar with Fluke Calibration you will learn tips for keeping your calibration baths and temperature calibrators operating at their peak.
You’ve invested a lot of money in your temperature calibration lab. Preventative maintenance is critical to keeping your calibration baths and temperature calibrators running at their best. A few minutes spent now in maintaining your equipment can also save you costly repairs and downtime later.
This document provides a standard operating procedure for calibrating thermometers used at an EPA microbiology laboratory. It describes annual calibration of NIST-traceable thermometers against each other and periodic point checks of laboratory thermometers against the NIST thermometers. Any differences in readings are recorded. Digital thermometers are verified as being NIST traceable without requiring correction factors. Personnel must be trained and qualified to perform the calibrations according to this SOP.
Humidity sensors have many applications in industries like semiconductor manufacturing, medical equipment, automobiles, agriculture, and general industry. There are different types of humidity sensors classified by their measurement techniques, including relative humidity sensors and absolute humidity sensors. Relative humidity sensors can be ceramic, semiconductor, or polymer-based, with ceramic sensors being the most common type. Ceramic humidity sensing materials include Al2O3, TiO2, SiO2, spinel compounds, and other materials like MnWO4 and Fe2O3. Each material has advantages and limitations for humidity detection depending on factors like temperature range, response time, and minimum detectable humidity level.
Fluke Calibration on How to Calibrate an RTD Using a Dry block Calibrator Web...Transcat
This document provides guidance on how to calibrate an RTD (resistance temperature detector) using a dry-block calibrator. It discusses potential sources of error from a dry-block like immersion depth, stem conduction, contact issues and temperature non-uniformity. It recommends fully immersing probes, maintaining consistent depths between the RTD and reference probe, and accounting for uncertainties. The document then walks through calculating uncertainties, addressing odd shaped probes, temperature ranges, and provides an example of a three-point RTD calibration using a dry-block and software.
In-Situ Calibration: Methods & Pitfalls of Thermal Mass Flow Meter Sensor Fie...Sierra Instruments
A unique and highly marketed benefit of thermal mass flow meter technology is “in-situ” or “in place” flow meter calibration. This certainly sounds like an alluring proposition to save time and money by avoiding the expense of returning the instrument to the factory for annual recalibration and recertification. But, not all methods of in-situ calibration validation are created equal!
In this white paper, Sierra Instruments examines five common methods of thermal mass flow meter in-situ calibration validation to help you make an informed decision for your business.
The document introduces different types of humidity sensor technologies, including thermoset and thermoplastic sensors, lithium chloride sensors, and aluminum oxide sensors. It compares various sensor materials and discusses their accuracy, temperature range, response time, and other specifications. Finally, it provides information on Honeywell's humidity sensor product portfolio and recommendations for selecting the appropriate sensor.
How to Calibrate an RTD Using a Dry Block Calibrator v2Transcat
Transcat and Ron Ainsworth of Fluke Calibration detail the steps and considerations necessary for the calibration of an RTD with a Dry Block Calibrator.
Industrial Temperature Calibration Selection Guide by Fluke CalibrationFluke Calibration
The Industrial Temperature Calibration Selection Guide includes information on:
Field metrology wells
Infrared calibrators
Handheld and field dry-wells
Micro-baths
Environmental monitoring
Thermometer readouts
Reference sensors Industrial temperature calibration selection guide Tools
How to Maintain Your Temperature Calibration Equipment WebinarTranscat
In this informative webinar with Fluke Calibration you will learn tips for keeping your calibration baths and temperature calibrators operating at their peak.
You’ve invested a lot of money in your temperature calibration lab. Preventative maintenance is critical to keeping your calibration baths and temperature calibrators running at their best. A few minutes spent now in maintaining your equipment can also save you costly repairs and downtime later.
This document provides a standard operating procedure for calibrating thermometers used at an EPA microbiology laboratory. It describes annual calibration of NIST-traceable thermometers against each other and periodic point checks of laboratory thermometers against the NIST thermometers. Any differences in readings are recorded. Digital thermometers are verified as being NIST traceable without requiring correction factors. Personnel must be trained and qualified to perform the calibrations according to this SOP.
Humidity sensors have many applications in industries like semiconductor manufacturing, medical equipment, automobiles, agriculture, and general industry. There are different types of humidity sensors classified by their measurement techniques, including relative humidity sensors and absolute humidity sensors. Relative humidity sensors can be ceramic, semiconductor, or polymer-based, with ceramic sensors being the most common type. Ceramic humidity sensing materials include Al2O3, TiO2, SiO2, spinel compounds, and other materials like MnWO4 and Fe2O3. Each material has advantages and limitations for humidity detection depending on factors like temperature range, response time, and minimum detectable humidity level.
Introduction to Temperature Measurement and Calibration Presented by Fluke Ca...Transcat
This document provides an overview of temperature measurement and calibration. It discusses calibration methods like comparison calibration and fixed point calibration. Key factors for choosing temperature measurement equipment are discussed, such as sensor type, temperature range, and required accuracy. Proper placement of sensors in baths and dry wells is also covered. The importance of maintaining calibration standards and training users is emphasized.
Using a Portable Bath to Improve Calibration of Sanitary RTD's and Transmitte...Transcat
Travis Porter from Fluke Calibration will describe how Portable Calibration Baths can improve the calibration throughput and accuracy of sanitary temperature sensors and transmitters.
This document discusses various methods of temperature measurement. It begins by introducing different applications that require temperature measurement in industrial processes. It then provides a brief history of temperature measurement, including early thermometers and scales. The document focuses on different types of temperature probes and sensors, including glass thermometers, bimetal thermometers, resistance temperature detectors (RTDs), and thermistors. It provides details on the construction, operation, accuracy and applications of these different temperature measurement devices.
How to Calibrate an RTD Using a Dry Block Calibrator Webinar_061015Transcat
In this Webinar, Kurt Zabriskie, Product Manager for Fluke Calibration Temperature Products, discusses the process and necessary considerations for the calibration of an RTD probe using a Dry Block or Dry Well Calibrator. Kurt thoroughly detains the potential sources of measurement error during the Dry Block calibration process, examines the types of Dry Block Calibrators available and their various applications, and ends the presentation with a step by step RTD calibration example.
How to Calibrate an IR Thermometer Webinar Presented by Fluke CalibrationTranscat
How do you know that your infrared calibrations are accurate?
Topics discussed will include:
-Sources of uncertainty
-Calibration equipment required
-Overview of the calibration procedure
-Review of a sample uncertainty budget
-Recommendations for reporting results
The testo 625 is a compact instrument that measures air humidity and temperature. It displays humidity, wet bulb temperature, or dew point as well as temperature on a two-line display. The humidity probe head can be removed and attached to the handle via cable or wirelessly transmitted to the instrument over large distances using an accessory radio module and handle. Accessories include replacement probes, carrying cases, calibration kits, and a radio module to enable wireless measurement.
Calibration of contact temperature sensors like thermocouples and RTDs. Primary and Secondary Calibration.
Fixed point method in primary calibration.
Stable temperature sources, master sensors and calibrated meter in secondary calibration.
Thermistors and resistance temperature detectors (RTDs) are common temperature sensors that function by changing electrical resistance with temperature. Thermistors have a high temperature coefficient, making them sensitive to small temperature changes, while RTDs use metals like platinum that change resistance linearly with temperature. Both sensor types require multi-wire connections to compensate for wire resistance and accurately measure the sensor's resistance change due only to temperature.
This document discusses various methods of temperature measurement. It begins by explaining that temperature is a subjective concept that requires objective measurement using thermometers. It then describes common temperature scales like Fahrenheit, Celsius and Kelvin.
The document discusses several methods of temperature measurement including expansion thermometers like liquid-in-glass thermometers and bimetallic thermometers which measure the expansion of materials. It also discusses electrical temperature instruments like resistance thermometers, thermocouples and thermistors which measure changes in electrical resistance or voltage with temperature. The construction and working of liquid-in-glass thermometers and resistance thermometers are explained in detail.
Transcat and Fluke Webinar: Streamlining Instrument CalibrationTranscat
The document discusses streamlining instrument calibration using calibration management software and documenting field calibrators. It describes how calibration management software can be used to manage calibration records and interface with documenting field calibrators. Documenting field calibrators can perform calibrations in the field, record results, and upload them to the calibration management software for a paperless calibration process. The benefits of this approach include consistent process performance, improved product quality, reduced downtime, and maximized use of maintenance personnel.
Lighthouse Worldwide Solutions provides environmental and process monitoring solutions. They have monitoring equipment and software for applications such as cleanrooms, laboratories, manufacturing facilities, and buildings. Their portfolio includes portable and remote particle counters, environmental sensors, gas analyzers, and software for online monitoring and data management.
GE Webinar: Oxygen Measurement for Chemical & Fuel Storage SafetyTranscat
This webinar will explore:
-The parameters needed for an explosion or fire to occur
-Identifying "Lower Explosive Limit"
-Measuring oxygen concentration using Thermoparamagnetic Oxygen sensors
-Application considerations and case studies
Field Pressure Calibration Tips Webinar with Fluke CalibrationTranscat
This document provides tips for calibrating pressure measurement devices in the field across various pressure ranges. It discusses considerations and standard options for calibrating at high pressures (>300 PSI) using deadweights, pumps, or hydraulic systems. For low pressures (<few PSI) and vacuums, it recommends using process calibrators or hand pumps. Draft pressure calibration (<1 PSI) requires extra stability and range considerations. Hard vacuum calibration of devices measuring below 1 Torr is challenging due to required large turndowns, and may require using a high-grade vacuum gauge as a standard.
Ceraliquid CPS41 and CPS41D with ceramic diaphragm and liquid KCl electrolyte, optional built-in temperature sensor. Email: lam.nguyen@vietan-enviro.com HP: 0945 29329
This discussion of the operating principles of capacitive, resisitive, and thermal conductivity humidity sensors also addresses their advantages, disadvantages, and applications.
1) The group calibrated thermometers including a Davis weather station probe, bead thermistor, alcohol thermometer, and mercury thermometer against a National Institute of Standards and Technology (NIST) certified standard.
2) They found the Davis probe generated the largest error of 0.54°C while the bead thermistor error was close to the Davis at 0.49°C based on total error propagation calculations tracing measurements back to the NIST standard.
3) Experiments examining the time response of thermometers in a wind tunnel found instruments responded more quickly to higher wind velocities, with lower velocities leading to longer response times.
1. The document discusses different types of temperature sensors and their characteristics, including thermistors, RTDs, and thermocouples. It focuses on NTC and PTC thermistors.
2. NTC thermistors have a high resistance at low temperatures that decreases rapidly as temperature increases, allowing small temperature changes to be detected precisely from 0.05-1.5°C. PTC thermistors have increasing resistance with temperature and are used for temperature measurement, overcurrent protection, and other applications.
3. RTD sensors measure temperature based on the resistance of metals like platinum, nickel, and copper, which increase in resistance with temperature. Pt100 sensors are a common type of
This document provides information about temperature measurement and control using thermocouples and RTDs. It discusses the Seebeck, Peltier, and Thomson effects which form the basis of thermocouple temperature measurement. It describes common thermocouple types (J, K, T, etc.), their properties, temperature ranges and color coding. RTD measurement using 2, 3, and 4-wire configurations is covered. The document also includes diagrams for a temperature control loop and panel along with descriptions of temperature measurement and control processes. Practical assessments and assignments are provided to connect and calibrate thermocouples and RTDs, measure temperature, and calculate average values.
Mobile Interactive Group (MIG) is a market leading provider of mobile technology and marketing platforms and solutions. It has offices in the UK, US, Canada, Australia and South Africa with 160 employees and £100 million in revenue in 2011. MIG provides proprietary mobile technology covering the entire mobile services value chain including mobile publishing, enterprise communications, loyalty solutions, messaging, payments and applications. It works with clients across various industries to deliver mobile marketing, payments, CRM, and content publishing services using its technology platforms. Case studies highlight projects with mobile operators, marketers, and media companies.
The document discusses the creation of a radio advertisement, print advertisement, and documentary with the common title "Inner Beauty" to promote the documentary. Key elements like the title, slogan "in the eye of the beholder", and Channel 4 logo were featured across all pieces. The same voice actor was used for the documentary and radio advertisement to link them. The print ad followed conventions of using a single relevant image, which was a girl with half her face made up to represent the topic of beauty. Audio clips and interviews from the documentary were used in the radio advertisement.
Introduction to Temperature Measurement and Calibration Presented by Fluke Ca...Transcat
This document provides an overview of temperature measurement and calibration. It discusses calibration methods like comparison calibration and fixed point calibration. Key factors for choosing temperature measurement equipment are discussed, such as sensor type, temperature range, and required accuracy. Proper placement of sensors in baths and dry wells is also covered. The importance of maintaining calibration standards and training users is emphasized.
Using a Portable Bath to Improve Calibration of Sanitary RTD's and Transmitte...Transcat
Travis Porter from Fluke Calibration will describe how Portable Calibration Baths can improve the calibration throughput and accuracy of sanitary temperature sensors and transmitters.
This document discusses various methods of temperature measurement. It begins by introducing different applications that require temperature measurement in industrial processes. It then provides a brief history of temperature measurement, including early thermometers and scales. The document focuses on different types of temperature probes and sensors, including glass thermometers, bimetal thermometers, resistance temperature detectors (RTDs), and thermistors. It provides details on the construction, operation, accuracy and applications of these different temperature measurement devices.
How to Calibrate an RTD Using a Dry Block Calibrator Webinar_061015Transcat
In this Webinar, Kurt Zabriskie, Product Manager for Fluke Calibration Temperature Products, discusses the process and necessary considerations for the calibration of an RTD probe using a Dry Block or Dry Well Calibrator. Kurt thoroughly detains the potential sources of measurement error during the Dry Block calibration process, examines the types of Dry Block Calibrators available and their various applications, and ends the presentation with a step by step RTD calibration example.
How to Calibrate an IR Thermometer Webinar Presented by Fluke CalibrationTranscat
How do you know that your infrared calibrations are accurate?
Topics discussed will include:
-Sources of uncertainty
-Calibration equipment required
-Overview of the calibration procedure
-Review of a sample uncertainty budget
-Recommendations for reporting results
The testo 625 is a compact instrument that measures air humidity and temperature. It displays humidity, wet bulb temperature, or dew point as well as temperature on a two-line display. The humidity probe head can be removed and attached to the handle via cable or wirelessly transmitted to the instrument over large distances using an accessory radio module and handle. Accessories include replacement probes, carrying cases, calibration kits, and a radio module to enable wireless measurement.
Calibration of contact temperature sensors like thermocouples and RTDs. Primary and Secondary Calibration.
Fixed point method in primary calibration.
Stable temperature sources, master sensors and calibrated meter in secondary calibration.
Thermistors and resistance temperature detectors (RTDs) are common temperature sensors that function by changing electrical resistance with temperature. Thermistors have a high temperature coefficient, making them sensitive to small temperature changes, while RTDs use metals like platinum that change resistance linearly with temperature. Both sensor types require multi-wire connections to compensate for wire resistance and accurately measure the sensor's resistance change due only to temperature.
This document discusses various methods of temperature measurement. It begins by explaining that temperature is a subjective concept that requires objective measurement using thermometers. It then describes common temperature scales like Fahrenheit, Celsius and Kelvin.
The document discusses several methods of temperature measurement including expansion thermometers like liquid-in-glass thermometers and bimetallic thermometers which measure the expansion of materials. It also discusses electrical temperature instruments like resistance thermometers, thermocouples and thermistors which measure changes in electrical resistance or voltage with temperature. The construction and working of liquid-in-glass thermometers and resistance thermometers are explained in detail.
Transcat and Fluke Webinar: Streamlining Instrument CalibrationTranscat
The document discusses streamlining instrument calibration using calibration management software and documenting field calibrators. It describes how calibration management software can be used to manage calibration records and interface with documenting field calibrators. Documenting field calibrators can perform calibrations in the field, record results, and upload them to the calibration management software for a paperless calibration process. The benefits of this approach include consistent process performance, improved product quality, reduced downtime, and maximized use of maintenance personnel.
Lighthouse Worldwide Solutions provides environmental and process monitoring solutions. They have monitoring equipment and software for applications such as cleanrooms, laboratories, manufacturing facilities, and buildings. Their portfolio includes portable and remote particle counters, environmental sensors, gas analyzers, and software for online monitoring and data management.
GE Webinar: Oxygen Measurement for Chemical & Fuel Storage SafetyTranscat
This webinar will explore:
-The parameters needed for an explosion or fire to occur
-Identifying "Lower Explosive Limit"
-Measuring oxygen concentration using Thermoparamagnetic Oxygen sensors
-Application considerations and case studies
Field Pressure Calibration Tips Webinar with Fluke CalibrationTranscat
This document provides tips for calibrating pressure measurement devices in the field across various pressure ranges. It discusses considerations and standard options for calibrating at high pressures (>300 PSI) using deadweights, pumps, or hydraulic systems. For low pressures (<few PSI) and vacuums, it recommends using process calibrators or hand pumps. Draft pressure calibration (<1 PSI) requires extra stability and range considerations. Hard vacuum calibration of devices measuring below 1 Torr is challenging due to required large turndowns, and may require using a high-grade vacuum gauge as a standard.
Ceraliquid CPS41 and CPS41D with ceramic diaphragm and liquid KCl electrolyte, optional built-in temperature sensor. Email: lam.nguyen@vietan-enviro.com HP: 0945 29329
This discussion of the operating principles of capacitive, resisitive, and thermal conductivity humidity sensors also addresses their advantages, disadvantages, and applications.
1) The group calibrated thermometers including a Davis weather station probe, bead thermistor, alcohol thermometer, and mercury thermometer against a National Institute of Standards and Technology (NIST) certified standard.
2) They found the Davis probe generated the largest error of 0.54°C while the bead thermistor error was close to the Davis at 0.49°C based on total error propagation calculations tracing measurements back to the NIST standard.
3) Experiments examining the time response of thermometers in a wind tunnel found instruments responded more quickly to higher wind velocities, with lower velocities leading to longer response times.
1. The document discusses different types of temperature sensors and their characteristics, including thermistors, RTDs, and thermocouples. It focuses on NTC and PTC thermistors.
2. NTC thermistors have a high resistance at low temperatures that decreases rapidly as temperature increases, allowing small temperature changes to be detected precisely from 0.05-1.5°C. PTC thermistors have increasing resistance with temperature and are used for temperature measurement, overcurrent protection, and other applications.
3. RTD sensors measure temperature based on the resistance of metals like platinum, nickel, and copper, which increase in resistance with temperature. Pt100 sensors are a common type of
This document provides information about temperature measurement and control using thermocouples and RTDs. It discusses the Seebeck, Peltier, and Thomson effects which form the basis of thermocouple temperature measurement. It describes common thermocouple types (J, K, T, etc.), their properties, temperature ranges and color coding. RTD measurement using 2, 3, and 4-wire configurations is covered. The document also includes diagrams for a temperature control loop and panel along with descriptions of temperature measurement and control processes. Practical assessments and assignments are provided to connect and calibrate thermocouples and RTDs, measure temperature, and calculate average values.
Mobile Interactive Group (MIG) is a market leading provider of mobile technology and marketing platforms and solutions. It has offices in the UK, US, Canada, Australia and South Africa with 160 employees and £100 million in revenue in 2011. MIG provides proprietary mobile technology covering the entire mobile services value chain including mobile publishing, enterprise communications, loyalty solutions, messaging, payments and applications. It works with clients across various industries to deliver mobile marketing, payments, CRM, and content publishing services using its technology platforms. Case studies highlight projects with mobile operators, marketers, and media companies.
The document discusses the creation of a radio advertisement, print advertisement, and documentary with the common title "Inner Beauty" to promote the documentary. Key elements like the title, slogan "in the eye of the beholder", and Channel 4 logo were featured across all pieces. The same voice actor was used for the documentary and radio advertisement to link them. The print ad followed conventions of using a single relevant image, which was a girl with half her face made up to represent the topic of beauty. Audio clips and interviews from the documentary were used in the radio advertisement.
Mobile Interactive Group (MIG) is a UK-based leader in mobile commerce services. They have 160 employees across regional offices in the UK, US, Canada, Australia and South Africa. MIG offers full-service mobile solutions across design, development, advertising and strategy. Their proprietary technology covers the entire mobile value chain. Key services include mobile web/apps, CRM, payments, loyalty programs, and mobile marketing. MIG has helped large clients like O2, M&S and Rimmel implement successful mobile strategies.
This document discusses the creation of a radio advertisement, print advertisement, and documentary with the title "Inner Beauty" that work together to promote the documentary. Key elements that were featured in both advertisements included the title, slogan "in the eye of the beholder", logo, voiceover from Helen who was in the documentary, and clips from interviews and vox pops from the documentary. Conventions for print advertisements like only one image and simple text and graphics were followed. The advertisements were designed to clearly promote the documentary and channel.
Mobile Interactive Group (MIG) is a UK-based leader in mobile services including mobile publishing, enterprise communications, loyalty solutions, and messaging/payments. They have over 160 employees across offices in the UK, US, Canada, Australia and South Africa. MIG owns proprietary mobile technology covering the entire value chain and works with clients across several industries to develop mobile strategies and applications. Their clients include major mobile operators, retailers, media companies, and financial institutions.
Hiroshige went to the Kano School of Painting and was influenced by some people. He had several students including Hiroshige II, Chinpei Suzuki, Utagawa Shigemaru, Utagawa Shigekiyo, and Utagawa Hirokage. Hiroshige was also influenced by artists like Utagawa Kuniyoshi, Kunisada, Claude Monet, Vincent Van Gogh, and Ivan Bilibin.
The documentary received mixed feedback from viewers. It was rated as moderately informative, with some interviews deemed irrelevant. The editing was average, though it flowed continuously with some minor jumps. Visually, the archive footage and opening titles were engaging but some sound issues occurred from music overpowering speech and background noise. The music, cutaways, and range of interviews were generally seen as fitting the theme well. Both the radio advert and print advert effectively advertised the documentary through relating to its theme, though some vox pops were overshadowed in the radio version.
Este documento describe los componentes y funcionalidad del kit Lego Mindstorms. Explica que el kit incluye piezas de Lego, sensores como de color, tacto e infrarrojo, motores y un bloque central para conectarlos y programarlos. También cubre cómo conectar el bloque a una computadora vía USB o WiFi para programar robots y cómo los sensores y motores se conectan al bloque para controlar entradas y salidas.
This document discusses choosing accessories for a digital multimeter to expand its measurement capabilities. It provides an overview of common accessory types for measuring voltage, temperature, current, and other parameters. The key factors to consider for each type of measurement include the levels, frequencies, form factors, ranges, and environments involved in the intended work. Selecting accessories tailored to the specific testing needs will provide the most versatility from a digital multimeter investment.
Transmitter-sensor matching improves RTD accuracy by programming a transmitter with calibration coefficients unique to a specific RTD sensor. This eliminates errors caused by the ideal resistance-temperature curve not matching an individual RTD's actual performance. Transmitter-sensor matching can improve temperature measurement accuracy for critical control applications up to 0.8°C by linearizing the transmitter's output based on the RTD's unique calibration curve, rather than assuming it follows the standard ideal curve. Replacing an RTD requires reprogramming the transmitter with new calibration coefficients to maintain the accuracy benefits of transmitter-sensor matching.
How to Use a Portable Bath to Improve Calibration of Sanitary RTD's and Trans...Transcat
Learn how the Fluke Calibration 6019A and 7109A Portable Calibration Baths can improve the calibration throughput and accuracy of sanitary temperature sensors and transmitters. Since production downtime can be costly, increasing sensor calibration throughput is critical.
Explains the principles underlying all devices used to sense temperature, and how the sensor signals are processed to convert them to indications of temperature. Describes the fundamental concepts of temperature, the Thermodynamic Temperature Scale, and the International Practical Temperature Scale. Covers sensor choice, response characteristics, heat transfer conditions, installation errors, instrumentation compromises, and mechanisms of sensor deterioration.
Temperature Applications for Process Calibration Tools - App NoteFluke Calibration
Process Calibration Tools (PCT) is a family of Fluke tools that enable users to calibrate temperature, pressure, flow and electrical sensors, transmitters and gages products in-situ and in I&C and I&E shops. This application note explains the need to calibrate temperature and provides a brief overview of a temperature calibration system and the workload it calibrates.
Webinar: Is your cheese at the correct temperature?Simple Hardware
Can you do hot monitoring as well?
Overview of Simple HW devices, device positioning, business logic. Description of modes.
Precision and resolution/sensors.
This document discusses validation of steam sterilization processes. It provides information on key terms used in microbial death kinetics like D values, Z values, and F values. It presents formulas used to calculate these values. The document also discusses autoclave calibration methods, including using boiling water and multipoint calibration. An example standard operating procedure for autoclave calibration is given. Common problems with steam sterilization validation are listed.
How to choose the right thermistor for the temperature sensorVinsion Chan
When faced with thousands of thermistor types, selection may cause considerable difficulties. In this technical article, I will introduce you to some important parameters to keep in mind when choosing a thermistor, especially when you want to use two commonly used thermistor types for temperature sensing (negative temperature coefficient NTC thermistor) Resistor or silicon-based linear thermistor). NTC thermistors are widely used because of their low price, but they provide low accuracy at extreme temperatures.
The document describes a room temperature controller project created by a group of 5 students. The objective was to build a temperature controller using a relay to reduce power consumption and automatically monitor environmental changes. The circuit uses an AD590 temperature sensor, LM324 op-amp for comparison, and a relay to control power based on temperature. It has applications in heating/cooling control for industries like food processing, plastics manufacturing, and healthcare. Future plans are to expand its uses to cold storage and equipment temperature regulation.
Temperature Sensor Calibration COVID-19 VaccinesAMETEK STC
For COVID-19 vaccines requiring ultra-low temperatures, maintaining freezing temperatures throughout the process, from manufacturing to delivery to patients, is necessary. Failure at any point to do so can result in wasted vaccines, which are so desperately needed. See how the JOFRA RTC-159 temperature calibrator can help ensure accuracy in the cold chain storage.
A Practical Guide to Improving Temperature Measurement AccuracyArjay Automation
Some processes do not require temperature measurement accuracy, and others do. However, you may be unsure whether accuracy is important for your particular applica- tion, or whether improving accuracy will make enough of a difference in your process results to justify the cost and effort. This paper identifies problems that result from inaccurate measurements and outlines ways to solve them that are both effective and economical.
Differential scanning calorimetry (DSC) measures heat flows associated with physical and chemical changes in a material as it is heated or cooled. A DSC instrument contains a sample cell with thermocouples to monitor temperature differences between a sample and reference material. Validation of a DSC involves design qualification, installation qualification, operational qualification, and performance qualification to verify proper installation and operation. Performance is checked using a standard material like indium and comparing results to literature values.
1.)(485 pages) C&I Measurements and Conversions.docxArjunSen24
This document discusses basic measurements including pressure, temperature, flow, level, and vibrations. It provides details on different types of pressure measurement units and how pressure is classified as static or dynamic. It also discusses different temperature scales and common devices for temperature measurement including thermocouples, thermistors, and resistance temperature detectors (RTDs). The document compares RTDs and thermocouples and discusses advantages and limitations of infrared temperature measurement.
Chr. Hansen had issues with slow temperature sensor response times and frequent calibrations that took too long, interrupting their sterilization process. They replaced the sensors with thin-film platinum resistance temperature detectors (RTDs) that responded 3.5 seconds faster and were more accurate. The compact size of the RTDs allowed them to fit into small thermowells without slowing response time. The RTDs also had a quick release mechanism, allowing calibration to be completed in under 5 minutes instead of 45 minutes, increasing process uptime and throughput. The new sensors provided faster, more accurate temperature measurements without process interruptions, improving plant efficiency.
This document discusses the calibration of various temperature measurement instruments. It describes calibrating liquid-in-glass thermometers, bimetallic thermometers, filled system thermometers, thermocouples, resistance thermometers, thermistors, and pyrometers. The calibration process involves comparing the instrument being calibrated to primary temperature standards or secondary calibrated standards at different temperature points to develop a relationship between the readings. Proper calibration ensures high precision temperature measurement and consistency between devices.
The document compares Thermal Stream Systems and Direct Thermal Head systems for temperature testing of integrated circuits (ICs). Thermal Stream Systems use compressed air to control temperature but require more space, infrastructure, and maintenance. Direct Thermal Head systems provide temperature control through direct contact and are more portable, quieter to operate, easier to set up, and less expensive to purchase and maintain long-term. For many IC testing needs, Direct Thermal Head systems offer a more practical solution due to their compact size, plug-and-play capability, and overall lower cost of ownership.
This document provides a specification sheet for the RTC-156/157 reference temperature calibrators from AMETEK. The calibrators offer high accuracy down to ±0.04°C, excellent stability of 0.005°C, and a wide temperature range from -30°C to 155°C. Key features include improved temperature homogeneity through an active dual-zone block, dynamic load compensation for perfect temperature uniformity, and intelligent reference sensors with stored calibration data. The calibrators communicate via USB and provide best-in-class performance according to EURAMET guidelines.
Datasheet Fluke 9190A. Hubungi PT. Siwali Swantika 021-45850618PT. Siwali Swantika
Datasheet Fluke Ultra-Cool Field Metrology Well. Informasi lebih detail hubungi PT. Siwali Swantika, Jakarta Office : 021-45850618 atau Surabaya Office : 031-8421264
Datasheet Fluke 9190A. Hubungi PT. Siwali Swantika 021-45850618
Calibration times march 2011
1. CALIBRATION TIMES
Vo l u m e 2 Issue 3 March 2011
Your Definitive Guide to making the
right choice for your Temperature Readout
Dear Readers,
Selecting the right readout device for your thermometry needs is important and an informed selection of an appropriate
instrument can make your temperature measurement job more efficient, accurate and within the right budget. A good
understanding of the selection criteria needed to select an appropriate readout device will avoid common measurement errors
associated with wrong selection of device.
A lot of general purpose industrial temperature measurement spot checks tend to be done using inappropriate temperature
probes connected to the most handy temperature reading DMM lying around. Users fail to realize the extent of errors in the
measurement leading to nasty surprises in a critical industrial environment. Similarly in a secondary or primary calibration lab,
there are many more selection criteria that a user may consider before a choice is made. This issue quickly takes you through a
number of important points that any temperature measurement system user would consider well before a buying decision is
made.
Mercury thermometers or even LIG (Liquid in Glass) thermometers, widely used in many industrial environments are rapidly
losing popularity due to environmental safety concerns and lack of convenience of use reasons. A new class of “Stick
Thermometers” are now finding wide popularity. Read on more about it.
Happy Reading!
Joey Joseph
Editor & Publisher
T h e Mo n t h l y N e w s Ma g a z i n e o n Me t r o l o g y f r o m T T L Te c h n o l o g i e s
2. CALIBRATION TIMES
Making the Right Choice for Your Temperature Readout
When performing temperature calibrations, the right choice of readout for your reference probe and units under test is critical.
Consider the following:
Accuracy
Most readout devices for resistance thermometers provide a specification in parts per million (ppm), ohms, and/or
temperature. Converting ohms or ppm to temperature depends on the thermometer being used. For a 100? probe at 0°C,
0.001? (1 m? ) equals 0.0025°C or 2.5 mK. One ppm would be the same as 0.1m? or 0.25 mK. You should also note whether
the specification is 'of reading' or 'of full range'. For example, 1 ppm of reading at 100? is 0.1m? . However, 1 ppm of full range,
where full range is 400, is 0.4m? . A big difference!
When reviewing accuracy specifications, remember that the readout uncertainty can be a small contribution to the total
calibration system uncertainty and that it may not always make economic sense to buy the lowest uncertainty readout. The
bridge-versus-Super-Thermometer analysis is an excellent case in point. A 0.1-ppm bridge may cost in excess of $40,000,
whereas a 1-ppm Super-Thermometer costs less than $15,000. Reviewing total system uncertainties, it's clear that the bridge
offers very little improvement in this case, 0.000006°C particularly considering its cost.
Measurement Errors
When making the high-accuracy resistance measurements, be sure the readout is eliminating the thermal EMF errors that are
generated at the dissimilar metal junctions within the measurement system. A common technique for removing EMF errors
uses a switched DC or low-frequency AC current supply.
Resolution
Be careful with this specification. Some readout manufacturers confuse resolution and accuracy. Having 0.001° resolution
does not mean the unit is accurate to 0.001°. In general, a readout accurate to 0.01° should have a resolution of at least
0.001°. Display resolution is important when detecting small temperature changes for example, when monitoring the freeze
plateau of a fixed-point cell or checking the stability of a calibration bath.
3. Linearity
Most readout manufacturers provide an accuracy specification at one temperature, typically 0°C. This is helpful, but you
normally measure a wide range of temperatures, so it's important to know the readout accuracy over your working range. If the
readout were perfectly linear, its accuracy specification would be the same across its entire range. However, all readout
devices have some non-linearity component and are not perfectly linear. Be sure the manufacturer provides an accuracy
specification over your working range or provides a linearity specification for you to include in your uncertainty calculations.
Stability
Readout stability is important, since you'll be making measurements in a wide variety of ambient conditions and over varying
lengths of time. Be sure to review the temperature coefficient and long-term stability specifications. Make sure the variations
in your ambient conditions will not affect the readout's accuracy. Reputable readout manufacturers provide a temperature
coefficient specification. The long-term stability specifications are sometimes tied to the accuracy specification for example,
"1 ppm for one year" or "0.01°C for 90 days." Calibration every 90 days is inconvenient, so calculate a one-year specification
and use that in your uncertainty analysis. Be wary of the supplier who quotes 'zero drift' specifications. Every readout has at
least one drift component.
Calibration
Some readout specifications state "no re-calibration necessary." However, under the latest ISO guides, calibration of all
measuring equipment is required. Some readout devices are easier to re-calibrate than others. Look for a readout that can be
calibrated through its front panel without special software. Some older readouts hold their calibration data on an EPROM that
is programmed with custom software. This means the readout must be returned to the manufacturer for re-calibrationwhich
could be in another country! Avoid readouts that still use manual potentiometer adjustments, since re-calibration is time-
consuming and expensive. Most DC readouts are calibrated using a set of high-stability DC standard resistors. Calibration of
an AC readout or bridge is more complicated, requiring a reference inductive voltage divider and accurate AC standard
resistors.
Traceability
Measurement traceability is another concern. Traceability of DC readouts is extremely simple through well-established DC
resistance standards. Traceability of AC readouts and bridges is more problematic. Many countries have no established AC
resistance traceability. Many other countries that have traceable AC standards rely on AC resistors calibrated with ten times
the uncertainty of the readout or bridge, which significantly increases the bridge's own measurement uncertainty.
Convenience Features
The push for increased productivity is endless. As a result, you'll need a readout with as many time-saving features as
possible.
Direct display in temperature - Many readouts display only raw resistance or voltage. Temperature is the most useful
display, so look for a readout that converts resistance or voltage to temperature and be sure it offers a variety of conversion
methods ITS-90 for SPRTs, Callendar van-Dusen for industrial PRTs, etc.
Variety of input types - It's highly likely that you'll be calibrating a variety of temperature sensors, including 3- and 4-wire
PRTs, thermistors and thermocouples. A readout that measures multiple input types provides the best value and maximum
flexibility.
Learning curve - Look for a readout that's simple to use. Bridges have been around for many years and provide good
measurement performance, but require a significant investment in training to operate (and an external PC to compute
temperature from resistance).
Multiplexers for expansion - When your calibration work includes batches of the same probe type, the ability to expand the
measurement system with multiplexer units can also improve productivity dramatically.
Digital interfaces - For automated data acquisition and calibrations, computer interfaces are essential. Look for RS-232 or
IEEE-488 interfaces and calibration software that interfaces with the readout and other system components (baths and
multiplexers) for automated calibrations.
4. There are a variety of methods for calculating the true cost of If you are using a dry-well calibrator and you have to calibrate a
downtime. Rather than calculate those costs, why not avoid them. probe that does not fit snuggly into one of the wells, you still have
Preventative maintenance like calibration helps manage the risk some options, but putting the probe into a well that's too large with
of downtime. The ability to calibrate an air gap around the sheath is
quickly is an advantage. Rather than wait not one of them. What you
for calibrators adjust their temperature to need is another insert with a
the next test point, use a dual-block or correctly sized hole.
dual-well dry-well to run two Interchangeable removable
temperatures simultaneously. With one inserts make it possible to
block (or temperature well ) set at your calibrate a wider variety of
high temperature and the other preset at probes without giving up on
a low temperature you can quickly good results. You have the
calibrate all of your RTDs and option of ordering
thermocouples without waiting for the interchangeable inserts with
block to change temperatures. That's smart. any FlukeHart Scientific dry-
well except the 9100S.
There's more than one reason why measuring multiple thermometers at the same time could
be a good idea. One is that you can be more productive if you can calibrate multiple devices in
parallel rather than sequentially. Another reason for simultaneous measurement can be
accuracy. If your temperature source is not very stable try measuring the reference and the
device under test at the same time. Measuring both at the same time can reduce the
uncertainty in your measurement by eliminating time dependent temperature differences. With
four independent measurement circuits the FlukeHart Scientific 1529 reads up to 4 RTDs,
thermistors, or thermocouples simultaneously.
Take the “Stik”
Thermometer
with you for
accurate
measurements
anywhere.
Fluke Calibration. Precision, performance, confidence.™
Articles reprinted under permission of Fluke
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