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working of six's maximum and minimum thermometer

10 de janeiro de 2021, às 23:43, por

working of six's maximum and minimum thermometer

Six’s Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. Traditionally maximum and minimum temperatures were measured using the set-up shown in the photo above. place. This is pushed around by the thermal expansion and contraction of the alcohol in the first bulb as it responds to the external temperature. MAX MIN THERMOMETER - GARDEN GREENHOUSE INDOOR OUTDOOR WALL - 12/428/3. Its purpose is to read themaximum and minimum temperatures reached since thethermometer was last read. A Stevenson screen or instrument shelter is a shelter or an enclosure to meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day. Six's Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. The bend at the bottom of As the temperature varies, the markers will remain in their positions unless the temperature becomes higher (for maximum) or lower (for minimum) than already recorded, in which case the relevant marker is pushed further. Date: 1910-1930. Subscribe Subscribed Unsubscribe 5. [2], In the bend of the U is a section of mercury, a metal which is liquid at normal temperatures. Generally speaking a minimumtemperature occurs during the night and a maximum during the day. It indicates current temperature along with the highest and the lowest temperatures since it was last set. Positive: 52.941176470588 % The markers thus record the furthest point reached by the mercury in each arm of the tube, and thereby the highest and lowest temperatures since the last reset. It is the alcohol which measures the temperature; the mercury indicates the temperature reading on both scales. One of the bulbs is completely filled with alcohol and the other bulb is … Go to Activity Six’s Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. Apparatus Description: The six’s thermometer consists of a U-shaped capillary tube with the bulbs at both ends; The bend of the U shaped-tube is filled with mercury (If the markers are not reset, they will register maxima and minima only if they exceed the values already encountered. A maximum-minimum thermometer works by registering the maximum and minimum temperatures over a certain time period by using two scales set in liquid mercury. How is a six’s thermometer useful in a green house? This is unlike a normal mercury thermometer, in which the expansion and contraction of mercury itself indicates temperature. Similarly, when the ), If the temperature rises, the maximum scale marker will be pushed. Generally speaking, a minimum temperature occurs during the night and a maximum during the day. Electronic thermometers often include a maximum–minimum registering feature. Now many weather stations are equipped with electronic instruments. It was invented by a British scientist James Six, born in Canterbury, in 1780;[1] the same basic design remains in use. It is commonly used wherever a simple way is needed to measure the extremes of temperature at a locat ion, for instance in meteorology and horticulture The highest number will be the maximum, the lowest the minimum, and the current temperature will be somewhere in between. Its purpose is to record the maximum and minimum temperatures reached since the thermometer was last read. Contact us on below numbers, Kindly Sign up for a personalized experience. When you record your data from your sixes thermometers you will record three numbers. Using this animatited video we can understand the construction and the working of a Six's maximum and minimum thermometer. Why is the six’s thermometer called minimum and maximum thermometer? They move along with the flow of These indexes are displaced by the expansion and contraction of the mercury, remaining at their extreme positions to give readings of the maximum and minimum temperatures. How does it work: This type of thermometer consists of a U-shaped glass tube filled with a liquid. Six's maximum and minimum thermometer Details Category: King George III Object Number: 1927-1732 Materials: alcohol, cork, glass, mercury, pine and steel credit: King's College, London Cite this page. reaches its maximum and minimum limits, the metal indexes remain at that There is a (metal) block at each end of the liquid column that is pushed along as the column advances. The steel indexes are located on the surface of mercury. rises, the alcohol expands and pushes the mercury up the maximum column. It records the maximum and minimum temperature for the time interval since it was last reset. 3. day. with the help of a diagram. If it falls, the moving mercury will push the minimum scale marker. It is also commonly known as a maximum–minimum, minimum–maximum, maxima–minima or minima–maxima thermometer, of which it is the earliest practical design. Typically the thermometer is reset every 24 hours to measure the diurnal temperature variation, the positions of the ends of the markers nearest to the mercury are examined. This also pushes the mercury down in the minimum column. Mercury occupies the bend in the tube and a spring-loaded index rests on the mercury's meniscus in each leg of the tube. It measures temperature in increments of one decimal place and is accurate to ±1°C. Six's Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. It is reset by using a magnet to reposition the small steel markers in the glass tube that indicate the maximum and minimum … Free postage. This thermometer is used among gardeners for use in green house . JAMES SIX invented the Maximum and Minimum thermometer in 1782. Classification: Thermometer. It consists of a U-shaped capillary tube with bulbs at both ends. There are bulbs at the top of each arm of the tube, one above each indicator. Diagram of six's maximum and minimum thermometer . We encourage the use and reuse of our collection data. Loading... Unsubscribe from Kanna Writes? Before a new maximum or minimum reading can be taken, the thermometer must be reset by moving the markers to the top of the mercury, usually by hand using a small magnet to slide them along the tube. It was invented by a British scientist James Six, born in Canterbury, in 1780; the same basic design remains in use. It's purpose is to record maximum and minimum temperature , since it was last read. If the two readings are not the same, then the instrument scales are not correctly positioned or the instrument is damaged.[2]. All rights reserved. 1890 - … When the temperature It is used to record extreme temperatures at a location as in meteorology, horticulture etc. A U-shaped thermometer, designed by J. W. Six, with a bulb that contains creosote. The reset is carried out by turning the U to the vertical so the markers sink to rest on the mercury, and returning it to the horizontal. These are the maximum and minimum temperatures and the current temperature. Explain the working of ‘Six’s maximum and minimum thermometer’ This helps in recording the maximum and minimum temperatures of the One type of minimum-maximum thermometer consists of a U-shaped glass tube, which is designed to read the correct temperature at both ends of the enclosed column of liquid. £8.49. A max min thermometer is ideal for use in the home, garden, greenhouse, conservatory or laboratory. One side registers the maximum temperature and the other side records the minimum temperature. GLOBE® 2005 Maximum, Minimum, and Current Temperature Protocol - 3 Atmosphere L earning A ctivities A ppendix W elcome Intr oduction Pr otocols Teacher Support Maximum/Minimum Thermometer There are two instruments available to take daily measurements of maximum and minimum temperature. Tutorvista.com has created a video animation to describe the working of the different types of Thermomenters. Inventory Number: 1998-1-1410. The bulb at the top of the minimum reading scale arm is full of alcohol, while the other contains a vacuum (or low pressure alcohol vapour). Copyright Notice © 2020 Greycells18 Media Limited and its licensors. Its purpose is to record the maximum and minimum temperatures reached since the thermometer was last read. The vacuum in the other bulb allows free movement of the alcohol and mercury. expansion and contraction of alcohol. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. One of these is for recording the maximum temperature encountered and the other for the minimum temperature. Generally speaking a minimum temperature occurs during the night and a maximum during the day. Six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. Their positions on the maximum and minimum scales show the highest and lowest temperatures encountered since the last reset.[4]. The bend of the U-tube is filled with mercury. When the temperature rises, the alcohol expands and pushes the mercury up the maximum column. Sixs maximum and minimum thermometer is a popular thermometeramong gardeners for use in greenhouses. minimum column resulting in a fall of mercury in the maximum column. thermometer is a U shaped parallel tube made up of glass. This is a handy thermometer that clearly displays minimum and maximum temperatures and humidity as well as the current temperature and humidity. The maximum and minimum readings are recorded by two small steel markers which are sprung into the capillary tube so that they can slide, but only if a force is applied to them, either by being pushed by the mercury or under the influence of an external magnet. registers the maximum temperature and the other side records the minimum Six’s maximum and minimum thermometer. The Six's thermometer was invented by James Six in the UK in 1780. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. Like the Thermometer project, this uses the temperature sensor inside the micro:bit’s CPU (central processing unit) to measure the temperature in °C (Celsius). Meteorological instruments .. Six's maximum and minimum thermometer Mercury barometers Old and morden aneroid barometer Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? A maximum-minimum thermometer, also known as a … One side registers the maximum temperature and the other side records the minimum temperature. One side It is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. Rights. Another design has the U orientated horizontally and the markers completely free and unsprung. Digital Display Max Min Greenhouse Thermometer Garden Indoor Outdoor Wall Room. They can be used to measure air temperatures. When the temperature The thermometer consists of a U-shaped glass tube with two separate temperature scales set along each arm of the U. Six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. Any change in temperature after that will push one of the markers along with it. Why is alcohol used in measuring temperature of very cold countries? A Six's thermometer functions by using alcohol to expand or contract the mercury inside to display both the highest and lowest temperatures of a given time period. (44) 44 product ratings - DIGITAL MAX MIN THERMOMETER GARDEN GREENHOUSE INDOOR OUTDOOR BRANNAN - 12/429/3. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. The original Six's thermometer design contains mercury, which has been banned for most uses in the European Union[5] and some other parts of the world. 54 sold. Two bulbs filled with alcohol or oil regulate the movement of the mercury. £13.15. 2. These thermometers, like the l [2], The thermometer shows a reading at the top of the mercury section on both the maximum and minimum scales; this shows the current temperature and should be the same on both scales. Before a maximum or minimum reading can be taken, both markers must be returned to the top of the mercury, usually by hand using a small magnet to slide them along the tube. These are wedged in the thermometric tube by the metal, and thus record the maximum and minimum temperatures reached. the thermometer contains mercury which moves up or down based on the Want a call from us give your mobile number below, For any content/service related issues please contact on this number. The thermometer is well made from quality materials and is simple and intuitive to use. temperature falls, the alcohol contracts and pulls the mercury up in the This thermometer is popular among gardeners for use in greenhouses. This program keeps track of the lowest and highest temperatures recorded by using 3 variables: currentTemp is the current temperature reading, max is the maximum and min is the minimum. The thermometer operates in the same way as the mercury version. Mercury-free maximum–minimum thermometers, https://books.google.com/books?id=XCRCAQAAMAAJ&printsec=frontcover#v=onepage&q&f=false, "EU bans mercury in barometers, thermometers", Two hundred years of the Six's Self Registering Thermometer, Article on Six's thermometer at the Museum of the History of Science at Florence, Italy, Explanation of the working of Six's thermometer, https://en.wikipedia.org/w/index.php?title=Six%27s_thermometer&oldid=998047818, Wikipedia articles needing clarification from December 2014, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 January 2021, at 15:22. Six's maximum minimum thermometer Six's maximum minimum thermometer. Subject: meteorology, Maker: Taylor Instrument Companies (1851 - 1992) Supplier: Andrew J. Lloyd Company (fl. Six's thermometer is a thermometer which can measure the maximum and minimum temperatures reached over a period of time, usually during a day. Six's maximum and the minimum thermometer is used for measuring the day's maximum and minimum temperature. Six’s maximum and the minimum thermometer is mainly used for measuring the maximum and minimum temperature of the particular day. When a manual control is operated, the plate is pushed away from the U-shaped tube, freeing the markers which then drop under gravity to the surface of the mercury. A maximum thermometer is a medical mercury-in-glass thermometer that features a carefully designed restriction in the mercury column directly ahead of the reservoir bulb. Give a reason why a Stevenson screen is ventilated. 4. Six’s thermometer is used where when one wants to know the maximum or minimum temperature during a day. As the alcohol expands and contracts, the mercury moves the indicators. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. The thermometer indicates the current temperature, and the highest and lowest temperatures since last reset. Temperature Range: -20 to 50°C&F Accuracy: +/-1°C IP Rating: IP 65 Battery: 1 x AAA (Supplied) Product Dimensions: 203 x 100 x 30mm This a very popular and reliable thermometer for monitoring maximum and minimum temperatures. However, there are still many cooperative weather stations using “mercury-in-glass” thermometers. In a variation of design, some models have unsprung markers held in place by a magnetic plate located behind the card showing the scales and close enough to the U-shaped tube to hold the markers in place unless they are pushed by the thermal expansion of the device. temperature. Free postage. In 2006, S.Brannan & Sons Ltd, a UK company, was granted a patent for a mercury-free version of Six's maximum–minimum thermometer: instead of mercury two immiscible liquids are used supporting an index[clarification needed]. The arms of the U-shaped tube terminate in sealed glass bulbs. Six's maximum and minimum thermometer is a popular thermometer among gardeners for use in greenhouses. Six’s Maximum and Minimum Taking readings Sixs' maximum minimum Thermometer in Project Kanna Writes. To bring them back into contact with the mercury, they are simply dragged back into the capillary tube by means of a magnet. Cancel Unsubscribe. It is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. The purpose of the restriction is to to keep any given reading visible on the thermometer … mercury up and down. What does a max min thermometer do?

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working of six's maximum and minimum thermometer

Six’s Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. Traditionally maximum and minimum temperatures were measured using the set-up shown in the photo above. place. This is pushed around by the thermal expansion and contraction of the alcohol in the first bulb as it responds to the external temperature. MAX MIN THERMOMETER - GARDEN GREENHOUSE INDOOR OUTDOOR WALL - 12/428/3. Its purpose is to read themaximum and minimum temperatures reached since thethermometer was last read. A Stevenson screen or instrument shelter is a shelter or an enclosure to meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day. Six's Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. The bend at the bottom of As the temperature varies, the markers will remain in their positions unless the temperature becomes higher (for maximum) or lower (for minimum) than already recorded, in which case the relevant marker is pushed further. Date: 1910-1930. Subscribe Subscribed Unsubscribe 5. [2], In the bend of the U is a section of mercury, a metal which is liquid at normal temperatures. Generally speaking a minimumtemperature occurs during the night and a maximum during the day. It indicates current temperature along with the highest and the lowest temperatures since it was last set. Positive: 52.941176470588 % The markers thus record the furthest point reached by the mercury in each arm of the tube, and thereby the highest and lowest temperatures since the last reset. It is the alcohol which measures the temperature; the mercury indicates the temperature reading on both scales. One of the bulbs is completely filled with alcohol and the other bulb is … Go to Activity Six’s Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. Apparatus Description: The six’s thermometer consists of a U-shaped capillary tube with the bulbs at both ends; The bend of the U shaped-tube is filled with mercury (If the markers are not reset, they will register maxima and minima only if they exceed the values already encountered. A maximum-minimum thermometer works by registering the maximum and minimum temperatures over a certain time period by using two scales set in liquid mercury. How is a six’s thermometer useful in a green house? This is unlike a normal mercury thermometer, in which the expansion and contraction of mercury itself indicates temperature. Similarly, when the ), If the temperature rises, the maximum scale marker will be pushed. Generally speaking, a minimum temperature occurs during the night and a maximum during the day. Electronic thermometers often include a maximum–minimum registering feature. Now many weather stations are equipped with electronic instruments. It was invented by a British scientist James Six, born in Canterbury, in 1780;[1] the same basic design remains in use. It is commonly used wherever a simple way is needed to measure the extremes of temperature at a locat ion, for instance in meteorology and horticulture The highest number will be the maximum, the lowest the minimum, and the current temperature will be somewhere in between. Its purpose is to record the maximum and minimum temperatures reached since the thermometer was last read. Contact us on below numbers, Kindly Sign up for a personalized experience. When you record your data from your sixes thermometers you will record three numbers. Using this animatited video we can understand the construction and the working of a Six's maximum and minimum thermometer. Why is the six’s thermometer called minimum and maximum thermometer? They move along with the flow of These indexes are displaced by the expansion and contraction of the mercury, remaining at their extreme positions to give readings of the maximum and minimum temperatures. How does it work: This type of thermometer consists of a U-shaped glass tube filled with a liquid. Six's maximum and minimum thermometer Details Category: King George III Object Number: 1927-1732 Materials: alcohol, cork, glass, mercury, pine and steel credit: King's College, London Cite this page. reaches its maximum and minimum limits, the metal indexes remain at that There is a (metal) block at each end of the liquid column that is pushed along as the column advances. The steel indexes are located on the surface of mercury. rises, the alcohol expands and pushes the mercury up the maximum column. It records the maximum and minimum temperature for the time interval since it was last reset. 3. day. with the help of a diagram. If it falls, the moving mercury will push the minimum scale marker. It is also commonly known as a maximum–minimum, minimum–maximum, maxima–minima or minima–maxima thermometer, of which it is the earliest practical design. Typically the thermometer is reset every 24 hours to measure the diurnal temperature variation, the positions of the ends of the markers nearest to the mercury are examined. This also pushes the mercury down in the minimum column. Mercury occupies the bend in the tube and a spring-loaded index rests on the mercury's meniscus in each leg of the tube. It measures temperature in increments of one decimal place and is accurate to ±1°C. Six's Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. It is reset by using a magnet to reposition the small steel markers in the glass tube that indicate the maximum and minimum … Free postage. This thermometer is used among gardeners for use in green house . JAMES SIX invented the Maximum and Minimum thermometer in 1782. Classification: Thermometer. It consists of a U-shaped capillary tube with bulbs at both ends. There are bulbs at the top of each arm of the tube, one above each indicator. Diagram of six's maximum and minimum thermometer . We encourage the use and reuse of our collection data. Loading... Unsubscribe from Kanna Writes? Before a new maximum or minimum reading can be taken, the thermometer must be reset by moving the markers to the top of the mercury, usually by hand using a small magnet to slide them along the tube. It was invented by a British scientist James Six, born in Canterbury, in 1780; the same basic design remains in use. It's purpose is to record maximum and minimum temperature , since it was last read. If the two readings are not the same, then the instrument scales are not correctly positioned or the instrument is damaged.[2]. All rights reserved. 1890 - … When the temperature It is used to record extreme temperatures at a location as in meteorology, horticulture etc. A U-shaped thermometer, designed by J. W. Six, with a bulb that contains creosote. The reset is carried out by turning the U to the vertical so the markers sink to rest on the mercury, and returning it to the horizontal. These are the maximum and minimum temperatures and the current temperature. Explain the working of ‘Six’s maximum and minimum thermometer’ This helps in recording the maximum and minimum temperatures of the One type of minimum-maximum thermometer consists of a U-shaped glass tube, which is designed to read the correct temperature at both ends of the enclosed column of liquid. £8.49. A max min thermometer is ideal for use in the home, garden, greenhouse, conservatory or laboratory. One side registers the maximum temperature and the other side records the minimum temperature. GLOBE® 2005 Maximum, Minimum, and Current Temperature Protocol - 3 Atmosphere L earning A ctivities A ppendix W elcome Intr oduction Pr otocols Teacher Support Maximum/Minimum Thermometer There are two instruments available to take daily measurements of maximum and minimum temperature. Tutorvista.com has created a video animation to describe the working of the different types of Thermomenters. Inventory Number: 1998-1-1410. The bulb at the top of the minimum reading scale arm is full of alcohol, while the other contains a vacuum (or low pressure alcohol vapour). Copyright Notice © 2020 Greycells18 Media Limited and its licensors. Its purpose is to record the maximum and minimum temperatures reached since the thermometer was last read. The vacuum in the other bulb allows free movement of the alcohol and mercury. expansion and contraction of alcohol. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. One of these is for recording the maximum temperature encountered and the other for the minimum temperature. Generally speaking a minimum temperature occurs during the night and a maximum during the day. Six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. Their positions on the maximum and minimum scales show the highest and lowest temperatures encountered since the last reset.[4]. The bend of the U-tube is filled with mercury. When the temperature rises, the alcohol expands and pushes the mercury up the maximum column. Sixs maximum and minimum thermometer is a popular thermometeramong gardeners for use in greenhouses. minimum column resulting in a fall of mercury in the maximum column. thermometer is a U shaped parallel tube made up of glass. This is a handy thermometer that clearly displays minimum and maximum temperatures and humidity as well as the current temperature and humidity. The maximum and minimum readings are recorded by two small steel markers which are sprung into the capillary tube so that they can slide, but only if a force is applied to them, either by being pushed by the mercury or under the influence of an external magnet. registers the maximum temperature and the other side records the minimum Six’s maximum and minimum thermometer. The Six's thermometer was invented by James Six in the UK in 1780. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. Like the Thermometer project, this uses the temperature sensor inside the micro:bit’s CPU (central processing unit) to measure the temperature in °C (Celsius). Meteorological instruments .. Six's maximum and minimum thermometer Mercury barometers Old and morden aneroid barometer Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? A maximum-minimum thermometer, also known as a … One side registers the maximum temperature and the other side records the minimum temperature. One side It is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. Rights. Another design has the U orientated horizontally and the markers completely free and unsprung. Digital Display Max Min Greenhouse Thermometer Garden Indoor Outdoor Wall Room. They can be used to measure air temperatures. When the temperature The thermometer consists of a U-shaped glass tube with two separate temperature scales set along each arm of the U. Six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. Any change in temperature after that will push one of the markers along with it. Why is alcohol used in measuring temperature of very cold countries? A Six's thermometer functions by using alcohol to expand or contract the mercury inside to display both the highest and lowest temperatures of a given time period. (44) 44 product ratings - DIGITAL MAX MIN THERMOMETER GARDEN GREENHOUSE INDOOR OUTDOOR BRANNAN - 12/429/3. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. The original Six's thermometer design contains mercury, which has been banned for most uses in the European Union[5] and some other parts of the world. 54 sold. Two bulbs filled with alcohol or oil regulate the movement of the mercury. £13.15. 2. These thermometers, like the l [2], The thermometer shows a reading at the top of the mercury section on both the maximum and minimum scales; this shows the current temperature and should be the same on both scales. Before a maximum or minimum reading can be taken, both markers must be returned to the top of the mercury, usually by hand using a small magnet to slide them along the tube. These are wedged in the thermometric tube by the metal, and thus record the maximum and minimum temperatures reached. the thermometer contains mercury which moves up or down based on the Want a call from us give your mobile number below, For any content/service related issues please contact on this number. The thermometer is well made from quality materials and is simple and intuitive to use. temperature falls, the alcohol contracts and pulls the mercury up in the This thermometer is popular among gardeners for use in greenhouses. This program keeps track of the lowest and highest temperatures recorded by using 3 variables: currentTemp is the current temperature reading, max is the maximum and min is the minimum. The thermometer operates in the same way as the mercury version. Mercury-free maximum–minimum thermometers, https://books.google.com/books?id=XCRCAQAAMAAJ&printsec=frontcover#v=onepage&q&f=false, "EU bans mercury in barometers, thermometers", Two hundred years of the Six's Self Registering Thermometer, Article on Six's thermometer at the Museum of the History of Science at Florence, Italy, Explanation of the working of Six's thermometer, https://en.wikipedia.org/w/index.php?title=Six%27s_thermometer&oldid=998047818, Wikipedia articles needing clarification from December 2014, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 January 2021, at 15:22. Six's maximum minimum thermometer Six's maximum minimum thermometer. Subject: meteorology, Maker: Taylor Instrument Companies (1851 - 1992) Supplier: Andrew J. Lloyd Company (fl. Six's thermometer is a thermometer which can measure the maximum and minimum temperatures reached over a period of time, usually during a day. Six's maximum and the minimum thermometer is used for measuring the day's maximum and minimum temperature. Six’s maximum and the minimum thermometer is mainly used for measuring the maximum and minimum temperature of the particular day. When a manual control is operated, the plate is pushed away from the U-shaped tube, freeing the markers which then drop under gravity to the surface of the mercury. A maximum thermometer is a medical mercury-in-glass thermometer that features a carefully designed restriction in the mercury column directly ahead of the reservoir bulb. Give a reason why a Stevenson screen is ventilated. 4. Six’s thermometer is used where when one wants to know the maximum or minimum temperature during a day. As the alcohol expands and contracts, the mercury moves the indicators. The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol. The thermometer indicates the current temperature, and the highest and lowest temperatures since last reset. Temperature Range: -20 to 50°C&F Accuracy: +/-1°C IP Rating: IP 65 Battery: 1 x AAA (Supplied) Product Dimensions: 203 x 100 x 30mm This a very popular and reliable thermometer for monitoring maximum and minimum temperatures. However, there are still many cooperative weather stations using “mercury-in-glass” thermometers. In a variation of design, some models have unsprung markers held in place by a magnetic plate located behind the card showing the scales and close enough to the U-shaped tube to hold the markers in place unless they are pushed by the thermal expansion of the device. temperature. Free postage. In 2006, S.Brannan & Sons Ltd, a UK company, was granted a patent for a mercury-free version of Six's maximum–minimum thermometer: instead of mercury two immiscible liquids are used supporting an index[clarification needed]. The arms of the U-shaped tube terminate in sealed glass bulbs. Six's maximum and minimum thermometer is a popular thermometer among gardeners for use in greenhouses. Six’s Maximum and Minimum Taking readings Sixs' maximum minimum Thermometer in Project Kanna Writes. To bring them back into contact with the mercury, they are simply dragged back into the capillary tube by means of a magnet. Cancel Unsubscribe. It is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. The purpose of the restriction is to to keep any given reading visible on the thermometer … mercury up and down. What does a max min thermometer do? 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