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By Roy van den Berg February 6, 2019 5 Views

Tamson TV7000LT

Tamson is proud to have built two more TV7000LT baths. Those precision instruments will be used in metrological institutes in China and in Uzbekistan.
Both baths will be used for calibration purposes at sub-zero temperatures.On the picture below, the baths have just been tested.
TV7000LT
The history of the TV7000LT goes back many years. In the early seventies a similar system was made by Tamson with a built-in cooling system.
The temperature control was based on a mercury contact thermometer and the refrigeration on an off-shelf conventional cooling system. This design resulted in this big apparatus.
In this apparatus, you will see a high temperature viscosity bath standing on the cooling unit. Back in the seventies, temperature control was still done by using the mercury contact thermometers, instead of the PT100s that became in use later.
First TV4000LT
The minimum temperature was restricted to -20 degrees Centigrade and the immersion depth dept was limited to 300mm. In 2005 a new system was developed upon request for the French national laboratory in Paris.
This unit was based on a TV7000 system and with 600mm it doubled the original immersion depth. This new bath was called the TV7000LT  TV stands for Tamson Visibility bath, 7000 to indicate a volume of 70 Liters, and LT stands for Low Temperature.
This bath more looks like the bath we produce nowadays.
TV7000LT 2005
The cooling system was redesigned to reduce the energy consumption significantly. The cooling system is based on a two mode principle, where the cooling down of the bath goes fast, and once the bath reaches the setpoint temperature, it switches to a mode where less power is used.
It also enables the use of the bath over a much wider temperature range, ranging from -40 up to +100 degrees Centigrade. However, when using the TV7000LT at a wide range, you have to consider the bath fluid that you are using.
For temperatures down to minus 20 water glycol mixtures are popular. For lower temperatures ethanol (or methanol) can be used. When working close to 100 degrees Celsius, silicon oil has to be used, because water does evaporate.

The TV7000LT offers excellent temperature stability. This makes it a good solution for all kind of calibration purposes, such as the calibration of viscometers conform ASTM D2162.

Interested in a TV7000LT? Please contact your local Tamson dealer, or our sales staff at sales@tamson.nl
Read More Posted in: News
By Roy van den Berg December 19, 2018 45 Views
Winter newsletter 2018

Winter newsletter 2018

Please see our winter newsletter below. In this newsletter, two new products are announced, the Tamson Freezing Point Tester and the Total Sediment Tester. Both products can be found on the website and in our price list.

For more information on these products, please contact our sales staff at sales@tamson.nl

The entire Tamson team wishes you a Merry Christmas and a Happy New Year!

Click here for the newsletter

Read More Posted in: News
By Roy van den Berg August 21, 2018 142 Views
Tamson 140 Years!

Tamson 140 Years!

This year, Tamson celebrates its 140th Birthday.

Tamson is founded on 1 April 1878 by Mrs. Tamson in dedication to her husband, Paulus Marinus Tamson. Tamson started as a wholesaler. The company was trading in laboratory equipment in the field of chemistry and physics. By the 1950s, Tamson started the production of thermostatic baths and circulators. During the 190s, Tamson was famous for its catalog, populary called the 'yellow bible', because it was a very thick yellow catalog, full with all kinds of laboratory equipment. During the 1980s, Tamson also launched the TV2000, TV4000 and TV7000 for the first time, which are the predecessors of the modern day TV2000, TV4000 and TV7000. The famous PMT logo is still being used today.

The Tamson team is proud to work for a company which such a rich history that exists for 140 years this year.

Read More Posted in: News
By Roy van den Berg August 20, 2018 190 Views
T17000

T17000

Tamson Instruments is proud to announce that we finished production of a special a few weeks ago: Our T17000 bath, a bath that has a volume of 170 liters and can achieve a stability better than 0.01 degrees Celsius! The T17000 is for VSL Dutch Metrology Institute , where it will be used as diffusion bath for making dynamic gas mixtures with volatile organic components.

If you are interested in a T17000 as well, please contact our sales team at sales@tamson.nl

Read More Posted in: News
By Roy van den Berg June 19, 2018 93 Views
ACHEMA 2018 was a success!

ACHEMA 2018 was a success!

Tamson Instruments was present at ACHEMA 2018 in Frankfurt. Tamson is one of the oldest participants at the fair in Frankfurt, which takes place once every three years. In a week, we saw a lot of distrubitors, suppliers and customers at our booth. We enjoyed the chance to show them some of the products from our wide product range. Should you have any questions following ACHEMA, please email us at sales@tamson.nl
By Roy van den Berg March 12, 2018 201 Views
ASTM D1480 apparatus available!

ASTM D1480 apparatus available!

Tamson Instruments is proud to present its apparatus for ASTM D1480, the density and relative density (specific gravity) of viscous materials by Bingham pycnometer. The apparatus for ASTM D1480 consists of our trusted TV12, a TLC10-3 cooling circulator, and Bingham pycnometers with holders.

The ASTM D1480 method covers two procedures for the measurement of the density of materials which are fluid at the desired test temperature. Its application is restricted to liquids of vapor pressures below 80 kPa (600 mm Hg) and viscosities below 40 000 mm²/s (cSt) at the test temperature. The method is designed for use at any temperature between 20°C and 100°C. It can be used at higher temperatures. For this test method, The liquid sample is introduced into the pycnometer, equilibrated to the desired temperature, and weighed. The density or specific gravity is then calculated from this weight and the previously determined calibration factor, and a
correction is applied for the buoyancy of air.

The same apparatus can be used with 25mL Bingham Pycnometers for ASTM D1217.

More information: https://tamson-instruments.com/astm-equipment/astm-d1480-d1217

If you need more information or a quotation, please contact our sales team at: sales@tamson.nl

Read More Posted in: News
By Roy van den Berg March 6, 2018 238 Views
Arab Lab 2018

Arab Lab 2018

Are you going to the Arab Lab in Dubai (March 19th - 21st)?

If you are, please let us know and maybe we can meet you! Our Marketing and Sales manager Matthijs van der Spek will be present as a visitor to represent Tamson. Please contact us at sales@tamson.nl if you request a meeting.

  • Tamson TV7000LT

    By Roy van den Berg February 6, 2019 5 Views

    Tamson is proud to have built two more TV7000LT baths. Those precision instruments will be used in metrological institutes in China and in Uzbekistan.
    Both baths will be used for calibration purposes at sub-zero temperatures.On the picture below, the baths have just been tested.
    TV7000LT
    The history of the TV7000LT goes back many years. In the early seventies a similar system was made by Tamson with a built-in cooling system.
    The temperature control was based on a mercury contact thermometer and the refrigeration on an off-shelf conventional cooling system. This design resulted in this big apparatus.
    In this apparatus, you will see a high temperature viscosity bath standing on the cooling unit. Back in the seventies, temperature control was still done by using the mercury contact thermometers, instead of the PT100s that became in use later.
    First TV4000LT
    The minimum temperature was restricted to -20 degrees Centigrade and the immersion depth dept was limited to 300mm. In 2005 a new system was developed upon request for the French national laboratory in Paris.
    This unit was based on a TV7000 system and with 600mm it doubled the original immersion depth. This new bath was called the TV7000LT  TV stands for Tamson Visibility bath, 7000 to indicate a volume of 70 Liters, and LT stands for Low Temperature.
    This bath more looks like the bath we produce nowadays.
    TV7000LT 2005
    The cooling system was redesigned to reduce the energy consumption significantly. The cooling system is based on a two mode principle, where the cooling down of the bath goes fast, and once the bath reaches the setpoint temperature, it switches to a mode where less power is used.
    It also enables the use of the bath over a much wider temperature range, ranging from -40 up to +100 degrees Centigrade. However, when using the TV7000LT at a wide range, you have to consider the bath fluid that you are using.
    For temperatures down to minus 20 water glycol mixtures are popular. For lower temperatures ethanol (or methanol) can be used. When working close to 100 degrees Celsius, silicon oil has to be used, because water does evaporate.

    The TV7000LT offers excellent temperature stability. This makes it a good solution for all kind of calibration purposes, such as the calibration of viscometers conform ASTM D2162.

    Interested in a TV7000LT? Please contact your local Tamson dealer, or our sales staff at sales@tamson.nl

    Posted in: News Read More
  • Winter newsletter 2018

    By Roy van den Berg December 19, 2018 45 Views

    Please see our winter newsletter below. In this newsletter, two new products are announced, the Tamson Freezing Point Tester and the Total Sediment Tester. Both products can be found on the website and in our price list.

    For more information on these products, please contact our sales staff at sales@tamson.nl

    The entire Tamson team wishes you a Merry Christmas and a Happy New Year!

    Click here for the newsletter

    Posted in: News Read More
  • Tamson 140 Years!

    By Roy van den Berg August 21, 2018 142 Views

    This year, Tamson celebrates its 140th Birthday.

    Tamson is founded on 1 April 1878 by Mrs. Tamson in dedication to her husband, Paulus Marinus Tamson. Tamson started as a wholesaler. The company was trading in laboratory equipment in the field of chemistry and physics. By the 1950s, Tamson started the production of thermostatic baths and circulators. During the 190s, Tamson was famous for its catalog, populary called the 'yellow bible', because it was a very thick yellow catalog, full with all kinds of laboratory equipment. During the 1980s, Tamson also launched the TV2000, TV4000 and TV7000 for the first time, which are the predecessors of the modern day TV2000, TV4000 and TV7000. The famous PMT logo is still being used today.

    The Tamson team is proud to work for a company which such a rich history that exists for 140 years this year.

    Posted in: News Read More
  • T17000

    By Roy van den Berg August 20, 2018 190 Views

    Tamson Instruments is proud to announce that we finished production of a special a few weeks ago: Our T17000 bath, a bath that has a volume of 170 liters and can achieve a stability better than 0.01 degrees Celsius! The T17000 is for VSL Dutch Metrology Institute , where it will be used as diffusion bath for making dynamic gas mixtures with volatile organic components.

    If you are interested in a T17000 as well, please contact our sales team at sales@tamson.nl

    Posted in: News Read More
  • ACHEMA 2018 was a success!

    By Roy van den Berg June 19, 2018 93 Views

    Tamson Instruments was present at ACHEMA 2018 in Frankfurt. Tamson is one of the oldest participants at the fair in Frankfurt, which takes place once every three years. In a week, we saw a lot of distrubitors, suppliers and customers at our booth. We enjoyed the chance to show them some of the products from our wide product range. Should you have any questions following ACHEMA, please email us at sales@tamson.nl

    Posted in: Exhibition Read More
  • ASTM D1480 apparatus available!

    By Roy van den Berg March 12, 2018 201 Views

    Tamson Instruments is proud to present its apparatus for ASTM D1480, the density and relative density (specific gravity) of viscous materials by Bingham pycnometer. The apparatus for ASTM D1480 consists of our trusted TV12, a TLC10-3 cooling circulator, and Bingham pycnometers with holders.

    The ASTM D1480 method covers two procedures for the measurement of the density of materials which are fluid at the desired test temperature. Its application is restricted to liquids of vapor pressures below 80 kPa (600 mm Hg) and viscosities below 40 000 mm²/s (cSt) at the test temperature. The method is designed for use at any temperature between 20°C and 100°C. It can be used at higher temperatures. For this test method, The liquid sample is introduced into the pycnometer, equilibrated to the desired temperature, and weighed. The density or specific gravity is then calculated from this weight and the previously determined calibration factor, and a
    correction is applied for the buoyancy of air.

    The same apparatus can be used with 25mL Bingham Pycnometers for ASTM D1217.

    More information: https://tamson-instruments.com/astm-equipment/astm-d1480-d1217

    If you need more information or a quotation, please contact our sales team at: sales@tamson.nl

    Posted in: News Read More
  • Arab Lab 2018

    By Roy van den Berg March 6, 2018 238 Views

    Are you going to the Arab Lab in Dubai (March 19th - 21st)?

    If you are, please let us know and maybe we can meet you! Our Marketing and Sales manager Matthijs van der Spek will be present as a visitor to represent Tamson. Please contact us at sales@tamson.nl if you request a meeting.

    Posted in: Exhibition Read More