第一熱研 List of Products and Services

Ultrasonic Gas Module: US-100-5VS type.2 / US-100-12VS type.2 is a gas concentration measurement module that uses ultrasonic elements in the detector. It measures the speed of sound in mixed gases to output the concentration. It has no consumable parts, is long-lasting, and does not require calibration or maintenance for an extended period. For more details, please contact us or refer to the catalog.

Ultrasonic Portable Gas Concentration Meter: The US-IX uses ultrasonic transducers to measure the speed of sound in gas. It calculates gas concentration by processing gas characteristics that change with gas concentration and temperature using a microcontroller. It has no consumable parts, boasts a long lifespan, allows for approximately 10 hours of continuous measurement, and does not require calibration or maintenance for an extended period. For more details, please contact us or refer to the catalog. *This model is scheduled to be discontinued in 2024.

US-II E is a gas concentration meter that uses ultrasonic elements as detectors. It measures the speed of sound and temperature in a two-component mixed gas to output the concentration. Ultrasonic gas concentration meters can theoretically measure the concentration of any two-component mixed gas. They have few consumable parts, a long lifespan, and do not require maintenance for extended periods. Additionally, they feature quick startup with reduced warm-up time, allowing for continuous measurement. There is a proven track record of measuring gas concentrations for oxygen, nitrogen, hydrogen, helium, carbon dioxide, carbon monoxide, argon, xenon, krypton, neon, sulfur hexafluoride, carbon tetrafluoride, nitrous oxide, methane, ethane, propane, Freon, and other gases. For more details, please contact us or refer to the catalog.

The US-II T-S is a gas concentration meter that uses ultrasonic elements as detectors. It measures the speed of sound and temperature in a two-component mixed gas to display and output the concentration. Ultrasonic gas concentration meters can theoretically measure the concentration of any two-component mixed gas. They have few consumable parts, a long lifespan, and require little maintenance over extended periods. Additionally, they allow for quick startup with reduced warm-up time, enabling continuous measurement. There is a proven track record of measuring gas concentrations for oxygen, nitrogen, hydrogen, helium, carbon dioxide, carbon monoxide, argon, xenon, krypton, neon, sulfur hexafluoride, carbon tetrafluoride, nitrous oxide, methane, ethane, propane, Freon, and more. For more details, please contact us or refer to the catalog.

Ultrasonic Gas Concentration Meter: The US-II T-SH is a gas concentration meter that uses ultrasonic elements in its detector. It measures the speed of sound and temperature in mixed gases to display and output concentration. It enables measurement ranges of 0-100% for H2 gas and He gas, which were previously limited to 0-50% in conventional models. For more details, please contact us or refer to the catalog.

The US-II T-P is a gas concentration meter that uses ultrasonic elements as detectors. It measures the speed of sound and temperature in a two-component mixed gas to display and output the concentration. Ultrasonic gas concentration meters can theoretically measure the concentration of any two-component mixed gas. They have few consumable parts, a long lifespan, and require little maintenance over extended periods. Additionally, they offer quick startup with reduced warm-up time, allowing for continuous measurement. There is a proven track record of measuring gas concentrations for oxygen, nitrogen, hydrogen, helium, carbon dioxide, carbon monoxide, argon, xenon, krypton, neon, sulfur hexafluoride, carbon tetrafluoride, nitrous oxide, methane, ethane, propane, Freon, and other gases. For more details, please contact us or refer to the catalog.

The US-I T-P is a gas concentration meter that uses ultrasonic elements in its detector. It measures the speed of sound and temperature in a two-component mixed gas to display and output the concentration. Ultrasonic gas concentration meters can theoretically measure the concentration of any two-component mixed gas. They have few consumable parts, a long lifespan, and require no maintenance for extended periods. Additionally, they offer quick startup with reduced warm-up time, allowing for continuous measurement. There is a proven track record of measuring gas concentrations for oxygen, nitrogen, hydrogen, helium, carbon dioxide, carbon monoxide, argon, xenon, krypton, neon, sulfur hexafluoride, carbon tetrafluoride, nitrous oxide, methane, ethane, propane, Freon, and other gases. For more details, please contact us or refer to the catalog.

The portable gas concentration meter "USF Series" is equipped with an ultrasonic flow meter that measures the speed of sound and temperature in mixed gases, calculating concentration and flow rate through unique computations. It can measure various types of binary mixed gases and supports continuous measurement. We offer two models: "USF-S," which allows switching between concentration and flow rate display, and "USF-B," which displays flow rate on a barometer. 【Features】 ■ Outputs concentration and flow rate from the connector ■ No consumable parts, long lifespan ■ Calibration and maintenance not required for long periods ■ Energy-efficient (can operate on a mobile battery) ■ Compact and lightweight for easy portability ■ No reference gas required *For more details, please refer to the PDF document or feel free to contact us.

The OA-1 zirconia oxygen concentration meter from Daiichi Thermal Research is a new product that thoroughly pursues "affordability" and "ease of use," suitable not only for measuring oxygen concentration in research and experiments but also for integration into devices. "I want something easy to use, but the device is too large and difficult to transport." "I plan to use it for a limited theme, so I want to acquire it as cheaply as possible." "I'm currently having trouble because my oxygen concentration meter is affected by the surrounding atmosphere." This product is perfect for researchers and developers facing such concerns! 【Features】 ● As it uses a limit current method with zirconia, it is not affected by the surrounding atmosphere. ● Comes with a 2-year warranty for long-term stable measurements. ● Supports both portability and panel mounting (integration). *For details on pricing, the 2-year warranty, and product specifications, please download the catalog and contact us.

The ultrasonic portable gas concentration meter US-I is a portable type of gas concentration meter that uses ultrasonic elements in its detector. It measures the speed of sound and temperature in any two-component mixed gas to display the concentration. Compared to conventional models, it has improved performance and has significantly reduced size and weight. "I want something easy to use, but the device is large and difficult to carry." "I plan to use it for a limited theme, so I want to acquire it as cheaply as possible." "After measuring gas concentration in research and experiments, I want to incorporate it into my device." This product is ideal for researchers and developers facing such concerns! 【Features】 ○ No consumable parts and long lifespan ○ Calibration and maintenance are not required for long periods ○ Short startup time and energy-saving ○ Compact and lightweight for easy portability ○ No reference gas required ○ Continuous measurement possible ○ Customizable output range settings ○ Battery operation available ○ Panel mounting possible with a mounting bracket set (sold separately) *For more details, please contact us or refer to the catalog.

The oxygen concentration meter from Daiichi Thermal Research Co., Ltd. has been developed and improved to meet customer needs and is used in various applications. It also excels in robustness and maintenance, contributing to the satisfaction of many users. Additionally, as applied products, we manufacture unique items such as combustible gas analyzers, high-temperature gas moisture meters, and oxygen pumps, in response to user needs beyond standard oxygen measurement. 【Featured in Case Studies!】 - Measurement of boiler flue gas - Measurement of furnace atmosphere - Vacuum equipment and vacuum furnaces - Tankers - Chemical ships and container ships - Nitrogen generation systems - Oxygen generation systems - Atmosphere management and oxidation prevention in the electronics and semiconductor fields - Nitrogen reflow furnaces *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

Artificial air is used as a high-purity gas without impurities to prevent hospital-acquired infections, and is utilized in applications such as artificial respiration, artificial heart-lung machines, and hyperbaric oxygen therapy. Our zirconia oxygen concentration meter is used in this artificial air generation system and is employed in numerous hospitals. Target model: FG-2U-100R *There are many other industries where it is actively used. Please download the case study collection and consult with us. If you would like a free demo, please let us know.

In the 1990s, due to the complete elimination of freon used for cleaning, new reflow ovens that meet or exceed the required quality were developed. To prevent oxidation during the loading of components onto the substrate, various companies began developing nitrogen reflow ovens. The atmosphere gas inside the reflow oven is very dirty, and our zirconia-type oxygen meters, which are resistant to harsh environments, have been widely adopted. Target models: TB-FI, TB-2F series *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

In paper mills, steelmaking, incinerators, and other industries, a large amount of oxygen is required in the processes. Oxygen generation systems extract oxygen from the air and are used to improve combustion efficiency in furnaces and in various processes. Additionally, smaller units are used for home healthcare purposes. Our zirconia-type oxygen analyzers are generally used for industrial oxygen generation systems. Target model: FG-2UX *There are many other industries where our products are actively used. Please download our case studies for reference and feel free to consult us. If you would like a free demo, please let us know.

In chemical plants and similar facilities, there are many processes that require nitrogen, and nitrogen lines are installed throughout the factory. The nitrogen generation unit separates nitrogen from the air and supplies it to the factory lines. Our products are incorporated into the nitrogen generation unit to measure residual oxygen concentration and are used for system control, among other purposes. Target models: TB-2F-P, CG-SM *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

In Japan, various goods are imported from countries around the world. The transportation methods are either by air or by ship, but in the case of ships, there is significant swaying, and for chemical products, there is a risk of explosion due to friction. Therefore, nitrogen generation devices are used to lower the oxygen concentration and prevent explosions in advance. Additionally, for food products, nitrogen generation devices are also used to lower and manage the oxygen concentration to prevent spoilage. Our zirconia oxygen analyzers are built into such nitrogen generation devices to monitor the oxygen concentration. Target models: TB-2F-P, CG-SM *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

When transporting heavy oil with a tanker, friction between the heavy oil and air inside the tank can cause an explosion due to turbulence during operation. To prevent this, tankers mix nitrogen or inert gases with the air to avoid explosions. Nitrogen is generated using a nitrogen generation unit, and inert gases are reused from boiler exhaust. This is called the Inert Gas System (I.G.S). Our oxygen meters are incorporated into the I.G.S, measuring the O2 concentration in the exhaust gas, and are actively used worldwide to prevent explosions during operation, as well as during loading and unloading. Achievements: Over 1,000 vessels. Target models: TB-2F series *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

The atmospheric pressure is 1 atmosphere (1013.25 hPa). A space with lower pressure than this atmospheric pressure is called a vacuum. By creating a vacuum, it is possible to prevent the oxidation of processed materials, which is why vacuum devices and vacuum furnaces are used in many material product processes. Our zirconia-based oxygen analyzer can measure a range from ppm O2 concentration to 10×-30 atm O2. Applicable models: TB-2F series, TB-2V series *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

Furnaces are used in various applications, not limited to steelmaking, ceramics, environmental technology, and non-ferrous metals. By simply changing the temperature, fuel, and air volume, the properties of the materials being heat-treated can change significantly. For example, in the steelmaking process, it is necessary to create a reducing atmosphere inside the furnace, which requires an oxygen-free environment. Each user can improve quality and enhance production efficiency by controlling and managing temperature and combustion. Our oxygen meters can measure the atmosphere inside the furnace. They can manage ranges such as %, ppm, mV, -%O2, and 【CO+H2】%, allowing for the measurement and management of oxidation-reduction. Applicable models: TB-2F series, TB-2G, and others. *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

In the 1970s, during the period of rapid economic growth, photochemical smog frequently occurred in Japan, often leading to the cancellation of physical education classes in elementary and junior high schools. This phenomenon arises from the poor combustion efficiency of fuel and air, resulting in the emission of nitrogen oxides and other pollutants into the atmosphere. In the 1980s, to reduce fuel costs, energy-saving initiatives were strengthened, allowing for efficient combustion without wasting fuel through the control of boiler combustion and oxygen concentration management. Additionally, there have been significant improvements in environmental aspects, and the occurrence of photochemical smog has been on the decline. Target model: TB-2G *There are many other industries where this is actively used. Please download the case study collection and consult with us. If you would like a free demo, please let us know.*

As greenhouse gases, carbon dioxide, methane, and sulfur hexafluoride (SF6) are mentioned, among which sulfur hexafluoride is widely used in power-related processes and as an insulating gas in semiconductors. In terms of global warming potential, if carbon dioxide is set at 1, sulfur hexafluoride is 22,800. In recent years, efforts have been made by various companies to prevent the release of sulfur hexafluoride into the atmosphere by installing recovery devices and other measures. Our ultrasonic gas concentration meter is incorporated into such recovery devices and is also used for portable measurement of SF6 concentration. Additionally, in Japan, our ultrasonic gas concentration meter is used for measuring the concentration of alternative refrigerants, which are required to be recovered after use under the Freon Recovery and Destruction Law, as it can measure concentrations that other methods cannot. Target models: US-2T series, US-100-5VS type.2 *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

Leak tests are conducted to confirm leaks caused by tiny holes, seal failures, and other issues. The helium leak method is often used due to its ease of handling and sensitivity in leak detection. Our ultrasonic gas concentration meter can measure helium concentration in the air at a negative fourth-order level, and the number of customers using it is increasing. In recent years, due to the rising cost of helium, there has been an increase in cases where helium is mixed with air and diluted for use. Our ultrasonic gas concentration meters and gas modules are also used for measuring the concentration of such mixed gases. Additionally, as helium prices have risen, more customers are recovering and reusing helium, and by installing our ultrasonic gas concentration meters on recovery devices, they can visualize concentration for precise management and control. Target devices: US-2T series, US-100-5VS type.2 *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

The shielding gas used in welding varies in gas composition and gas mixture concentration depending on the object being welded. In each company, when performing small amounts of welding, bottled gas is used, while for large-scale welding, tanks, gas mixers, or in-house gas mixing systems are utilized. Our ultrasonic gas concentration meter is used to measure the gas concentration refined by gas mixers and gas mixing systems. Applicable models: US-1X, US-2T-S *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

Neon, xenon, and krypton are called rare gases because they exist in very small absolute amounts on Earth. The applications of rare gases are wide-ranging, including electronics, semiconductors, medical fields, and space, and the demand is currently high. Naturally, due to their high prices and preciousness, concentration management is conducted using our ultrasonic gas concentration meters in laboratories and similar settings to ensure efficient gas usage. Target model: US-2T series *There are many other industries where these gases are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

In the electronics and semiconductor fields, our ultrasonic gas concentration meter is used to monitor and manage gas concentration during the encapsulation process of a certain process gas. Target equipment: US-2T series *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

It is said that by examining the gas concentration in exhaled breath, one can determine health status. We have combined our zirconia oxygen meter and ultrasonic gas concentration meter into an integrated unit, using the zirconia oxygen meter to measure oxygen concentration and the ultrasonic gas concentration meter to measure carbon dioxide and nitrogen concentrations, allowing it to be used as an exhalation sensor. Target equipment: FG-2UX + US-1T-P *There are many other industries where this is also actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

A ventilator is a medical device that artificially assists breathing for individuals with insufficient spontaneous respiration over a long period, ranging from several hours to several years. Our ultrasonic gas module is installed in this device and is used to monitor the oxygen concentration supplied to the patient from the device. Target device: US-100-5VS type.2 *There are many other industries where it is actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

Home oxygen therapy is a treatment method for chronic respiratory failure that involves administering oxygen at home, and it is one of the most widely practiced forms of home healthcare in Japan. Among patients with respiratory failure, there are many who are forced to be hospitalized solely for oxygen inhalation. Home oxygen therapy allows these patients to use oxygen concentrators or cylinders to inhale oxygen at home or while out, enabling them to manage their health at home and reintegrate into society. Our ultrasonic gas module is equipped in these home oxygen concentrators and is used for monitoring oxygen concentration. Additionally, an ultrasonic portable gas concentration meter is used to measure the concentration of exhaust gases from the oxygen concentrator to verify its performance. Target devices: US-100-5VS type.2, US-1X *There are many other industries where our products are actively used. Please download our case study collection and consult with us. If you would like a free demo, please let us know.

An ultrasonic gas concentration meter is a gas concentration meter that uses high-voltage ultrasonic elements in its detector. It measures the speed of sound and temperature in a mixed gas of two types to display and output the concentration. It has enabled the measurement range of H2 gas and He gas to be expanded from the conventional range of 0-50% to 0-100%. It has a short startup time, does not require comparison gases, and has no consumable parts, which helps reduce running costs. 【Featured in case studies!】 ○ Home oxygen concentrators ○ Ventilators ○ Exhalation sensors ○ Electronics and semiconductor industry for monitoring and managing gas concentrations in process gas encapsulation ○ Leak testing ○ Greenhouse gas recovery devices (concentration measurement of sulfur hexafluoride and alternative refrigerants) ○ Rare gas (neon, xenon, krypton) concentration management ○ Concentration measurement of shielding gases used in welding (refined in gas mixers and gas mixing systems) *There are many other industries where it is actively used. Please download the case study collection and consult with us. If you would like a free demo, please let us know.

The ultrasonic gas concentration meter US-II T-SH is a gas concentration meter that uses a high-voltage ultrasonic element in its detector. It measures the speed of sound and temperature in a mixed gas of two types and outputs the concentration display. It has enabled a measurement range of 0-100% for H2 gas and He gas, which was previously limited to a range of 0-50% in conventional models. It has a short startup time, does not require a comparison gas, and has no consumable parts, allowing for reduced running costs. *Free demonstrations with the actual device are also available! If you are interested, please contact us.

We would like to introduce the "Ultrasonic Gas Concentration Meter," which is suitable for those who want to measure gas concentrations with higher performance. - Only need analog output - Want both analog output and alarm output - Want to measure high concentration helium - Want to measure high concentration hydrogen - Want contact output for alarms, etc. - Want a flow meter - Want a flow meter and sampling pump If you have any of these requests, please use our products. Additionally, for other requests, we can provide customized products. 【List of Models by Function (Excerpt)】 ■ Only need analog output US-IIT-S ■ Want both analog output and alarm output US-IIT-SR ■ Want to measure high concentration helium / Want to measure high concentration hydrogen US-IIT-SH, etc. *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce the "Ultrasonic Gas Concentration Meter," which is suitable for those who want to measure gas concentrations while keeping costs down. - Looking for a compact and lightweight instrument - Want to use it in low temperatures - Need a display unit - Prefer a portable type - Want to increase pressure resistance If you have any of these requests, please consider using our products. Additionally, for other requests, we can provide customized products. 【List of Models by Function】 ■ Looking for a compact and lightweight instrument US-100-5VS type.2 / US-100-12VS type.2 ■ Want to use it in low temperatures US-100-5VS-L / US-100-12VS-L ■ Need a display unit US-I ■ Want to increase pressure resistance US-IIE *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce examples of the adoption of the "Ultrasonic Gas Concentration Meter." Our company also manufactures customized products tailored to our customers' needs under a confidentiality agreement. If you let us know your requirements, we will be happy to make suggestions, so please feel free to contact us. [Examples] ■ Applicable models: All series *For more details, please refer to the PDF document or feel free to contact us.

Here are some examples of the adoption of the "Ultrasonic Gas Concentration Meter." In a certain process, flammable gases such as hydrogen, methane, and propane are used at arbitrary concentrations. These gases are mixed with oxidizing gases like oxygen in a certain ratio, and when there is a heat source, they can cause combustion explosions. Our products do not have a heat source in the detection section, which allows for the measurement of gas concentration while reducing the conditions under which flammable gases can ignite (however, they are not explosion-proof). [Examples] ■ Application: Measurement of flammable gas concentration ■ Target models: US-IIT Series, US-IT Series *For more details, please refer to the PDF materials or feel free to contact us.

Here are some examples of the adoption of the "Ultrasonic Gas Concentration Meter." The shielding gas used in welding varies in gas composition depending on the object, and the gas mixture concentration also differs. In each company, when performing small-scale welding, bottled gas is used, while for large-scale welding, tanks, gas mixers, or in-house gas mixing systems are employed. Our products are used to measure the gas concentrations refined by gas mixers and gas mixing systems. [Case Study] ■ Application: Welding ■ Target Models: US-IX, US-IIT-S *For more details, please refer to the PDF document or feel free to contact us.

Here are some examples of the adoption of the "Ultrasonic Gas Concentration Meter." Neon, xenon, and krypton are present in very small absolute amounts on Earth and are referred to as "noble gases." The applications of "noble gases" are wide-ranging, including electronics, semiconductors, medical fields, and space, and the demand is currently high. Naturally, due to their high prices and rarity, laboratories and similar facilities use our products for concentration management to ensure efficient gas usage. [Example] ■ Application: Noble gases ■ Target model: US-IIT Series *For more details, please refer to the PDF document or feel free to contact us.

The "US Series" is a gas concentration meter that uses ultrasonic elements in its detector and can accommodate various types of mixed gases with just one unit. In addition to low power consumption, it achieves long-term maintenance-free operation, and it has a rich product lineup that can also be customized. It is effective in measuring the concentration of helium gas, as well as hydrogen gas, which is used as an alternative to helium. 【Features】 ■ Capable of measuring special gases ■ No consumable parts, long lifespan ■ Available in portable and modular types ■ "US-2T-SH" is compatible with high-concentration helium (hydrogen) *For more details, please refer to the materials. Feel free to contact us with any inquiries.

Atmospheric pressure is 1 atmosphere (1013.25 hPa). A space with lower pressure than this atmospheric pressure is called a vacuum. By creating a vacuum, it is possible to prevent the oxidation of processed materials, which is why vacuum devices and vacuum furnaces are used in many material product processes, etc. Our zirconia-based oxygen meter can measure a range of 10×-30 atm O2, starting from ppm O2 concentration. 【Features】 ○ Can be directly inserted into glove boxes, vacuum furnaces, and small sealed containers or piping where sampling is difficult. ○ Capable of measuring O2 partial pressure under reduced pressure of 1×10-3 Pa (1×10-5 Torr). ○ Easy maintenance due to its simple structure. 【Specifications】 ○ Flange sizes: VF25, NW40, NW25, etc. ○ Installation: Horizontal to vertical, with the above flanges prepared by the customer. ○ Measurement range: 1 ppm to 100% O2, 1 to 1×10-30 atm O2. 【What can be solved with the zirconia-based oxygen meter】 ● I want to measure the atmosphere inside the furnace to improve quality. ● I want to measure the oxygen concentration in a vacuum. ● I want to manage combustion to reduce fuel costs. ● I want to manage the concentration of clean gases in PSA, gas production equipment, etc. *For more details, please download the catalog or feel free to contact us!

The "US Series" is a gas concentration meter that uses ultrasonic elements in its detector and can accommodate various types of two-component mixed gases with a single unit. Due to the recent helium shortage, there is an increasing demand for measuring helium/nitrogen mixed gases and helium/air mixed gases. In addition to low power consumption, it achieves long-term maintenance-free operation, and the product lineup is extensive, with options for custom manufacturing. 【Features】 - No consumable parts and long lifespan - Short startup time and energy-efficient - Calibration and maintenance are not required for long periods - Compact and lightweight, easy to install (US-100-5VS type2) *For more details, please refer to the PDF document or feel free to contact us.

The high-concentration helium gas density meter "US-IIH" is a gas density meter that uses a high-voltage ultrasonic element in its detector. By measuring the speed of sound and temperature in mixed gases, it performs our unique calculations to display and output the concentration. It has made it possible to measure helium gas concentrations of 50% to 100%, which could previously only be measured with one model, at a lower cost. Please feel free to contact us when you need assistance. 【Features】 ■ A cost-effective version of the high-end model US-IIT-SH ■ Ultrasonic type, resulting in fewer consumable parts and a long lifespan ■ No maintenance or calibration required for long periods ■ Short startup time ■ Gas temperature variation compensation (5 to 45°C) ■ Customizable output range setting function *For more details, please refer to the PDF document or feel free to contact us.