若井田理学 List of Products and Services

The "gauge port" is a fitting used to attach measuring instruments such as vacuum gauges to piping or vacuum chambers. Made from SUS304, it is thicker than those from other manufacturers, providing better operability of the bag nut and durability. We also offer Y-shaped and T-shaped pipes. 【Features】 ■ Made from SUS304 ■ Thick ■ Good operability of the bag nut ■ Durable ■ Y-shaped and T-shaped pipes also available *For more details, please refer to the PDF document or feel free to contact us.

• Pipe Fittings

The "DG-2B/DG-2B2" is a separate type Penning vacuum gauge with the meter and body (amplifier) separated, making it suitable for installation in various locations and for mounting on equipment. The "Penning vacuum gauge" measures the discharge current in a magnetic field. Since it uses cold cathode discharge, there is no risk of filament burnout, and it will not malfunction even if switched on at atmospheric pressure. Additionally, the "DG-2B2" is equipped with two relay contacts, allowing it to be used for system control. Furthermore, improvements can be made according to customer requests. 【Features】 ■ Separate type ■ Suitable for installation in various locations and for mounting on equipment ■ The measurement sphere uses a special alloy in the magnet ■ Robust with no filament burnout in the measurement sphere ■ Easily usable as a pressure indicator *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic measuring instruments
• Other physicochemical equipment

The "DG-1B" is a compact type of standard penning vacuum gauge that has been miniaturized. The "penning vacuum gauge" is a device that detects and measures discharge current in a magnetic field. Since it uses cold cathode discharge, there is no risk of filament burnout, and it will not malfunction even when switched on at atmospheric pressure. It is easy to handle and robust, making it suitable for widespread use in industrial instruments such as vacuum equipment. Additionally, improvements can be made according to customer requests. 【Features】 ■ Compact type ■ The measurement sphere uses a special alloy in the magnet ■ Small and lightweight, easy to handle ■ No filament burnout in the measurement sphere ■ Can be easily used as a pressure indicator *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic measuring instruments
• Other physicochemical equipment

The "WVG-1T/WVG-3T" is a standard type wide-range vacuum gauge composed of a Pirani vacuum gauge and an ionization vacuum gauge, capable of continuous measurement over a wide range of pressures. Operation is simple, and it features a built-in stabilizer for extremely stable performance. In the low vacuum range, the Pirani vacuum gauge operates and measurements are taken, while in the high vacuum range, it automatically switches from the Pirani vacuum gauge to the ionization vacuum gauge for measurement. The measurement range on the PG side differs between the "VG-1T" and "WVG-3T." Additionally, we offer logarithmic types and types with relay contacts. Improvements can be made according to customer requests. 【Features】 ■ Continuous measurement capability ■ The measurement range on the PG side differs between WVG-1T and WVG-3T ■ Easy operation ■ Extremely stable operation ■ Pirani vacuum gauge and ionization vacuum gauge can be used independently *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic measuring instruments
• Other physicochemical equipment

The "IVG-1AT/IVG-1BT" is an ionization vacuum gauge that utilizes the principle of thermal electrons emitted from a heated filament in a hot cathode type vacuum gauge, which are accelerated by a grid and create ions proportional to the pressure through collisions with gas molecules in the vacuum. Both "IVG-1AT" and "IVG-1BT" are standard ionization vacuum gauges. They have different measurement ranges due to the use of different measurement spheres. Additionally, types with relay contacts and linear or logarithmic types are also available. Improvements can be made according to customer requests. 【Features】 ■ Standard ionization vacuum gauge ■ Adopts a highly sensitive special stabilization circuit ■ Provides reliable measurement values with stable operation at all times ■ Built-in protection circuit for the filament ■ Equipped with external control signals, suitable for various applications such as automated control systems *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with pressure. The 'PG-2CR' is a type equipped with relay contacts. It is more compact compared to standard types like the PG-2B, but by equipping it with a single relay contact, it can also be used for system control. It is suitable for roughing systems of various vacuum devices and for measuring pressure in equipment, making it frequently used and widely applicable as a key component in automatic devices. Additionally, improvements can be made according to customer requests. 【Features】 ■ Compact type with relay contacts compared to standard types like the PG-2B ■ Equipped with a single relay contact, allowing for system control ■ Minimal aging changes even with long hours of continuous use ■ Adopts a unique special Pirani bulb, providing stable operation and reliable measurement values ■ Easy to handle, allowing for a wide range of simple vacuum level measurements *For more details, please refer to the PDF document or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with pressure. The 'PG-3F2/PG-4F2' is a model equipped with two relay contacts, based on the 'PG-3F/PG-4F'. Since the meter and the main unit (amplifier) are integrated, it is compact and inexpensive, and the inclusion of relay contacts makes it suitable for various control applications. It is suitable for pressure measurement in rough vacuum systems of all types of vacuum equipment and is frequently used, serving as a key component in automatic devices. Additionally, improvements can be made according to customer requests. 【Features】 ■ A model equipped with two relay contacts based on G-3F/PG-4F ■ Compact and inexpensive, suitable for various control applications ■ Minimal changes over long periods of continuous use ■ Utilizes a unique special Pirani bulb for stable operation and reliable measurement values ■ Easy to handle, allowing for wide and convenient vacuum level measurement *For more details, please refer to the PDF document or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with pressure. The "PG-3F/PG-4F" is a compact type with the meter and the main unit (amplifier) integrated. The "PG-4F" has a smaller meter section compared to the "PG-3F." It is suitable for roughing systems of various vacuum devices and for measuring pressure in equipment, making it frequently used. It can also be widely utilized as a key component in automatic devices. Additionally, improvements can be made according to customer requests. 【Features】 ■ Compact and inexpensive due to the integration of the meter and the main unit (amplifier) ■ The PG-4F has a smaller meter section compared to the PG-3F ■ Minimal changes over time, even with prolonged continuous use ■ Employs a unique special Pirani bulb for stable operation and reliable measurement values ■ Easy to handle, allowing for a wide range of simple vacuum level measurements *For more details, please refer to the PDF materials or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with pressure. The 'PG-3B/PG-3B2' is a separate type with the meter and the main unit (amplifier) separated. It can be installed in various locations and is suitable for mounting on equipment. Additionally, the "PG-3B2" is equipped with two relay contacts, allowing it to be used for system control. Furthermore, improvements can be made according to customer requests. 【Features】 ■ Separate type with the meter and main unit (amplifier) separated ■ Equipped with two relay contacts, usable for system control (PG-3B2) ■ Minimal aging changes even with long hours of continuous use ■ Utilizes a unique special Pirani bulb for stable operation and reliable measurement values ■ Easy to handle and allows for a wide range of vacuum level measurements *For more details, please refer to the PDF document or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with pressure. The 'PG-1F' can measure from 2K Pa. It is equipped with a lamp that indicates filament breakage. It is suitable for roughing systems of all vacuum devices and for pressure measurement of the equipment, making it frequently used and widely applicable as a key component in automatic devices. Additionally, improvements can be made according to customer requests. 【Features】 ■ Capable of measuring from 2K Pa ■ Equipped with a lamp that indicates filament breakage ■ Minimal aging changes even with long hours of continuous use ■ Adopts a unique special Pirani bulb, providing stable operation and reliable measurement values ■ Easy to handle, allowing for a wide and convenient measurement of vacuum levels *For more details, please refer to the PDF document or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Pirani vacuum gauge" is a thermal conductivity type vacuum gauge that utilizes the change in electrical resistance of a heated filament in a vacuum, which varies with temperature due to pressure changes. Both the "PG-2B" and "PG-2BN" are standard tabletop types. The "PG-2BN" can measure to higher vacuum levels compared to the "PG-2B." They are suitable for rough pumping systems of various vacuum devices and for measuring pressure in these devices, making them frequently used and widely applicable as essential components in automatic systems. Additionally, improvements can be made according to customer requests. 【Features】 ■ Standard tabletop type Pirani vacuum gauge ■ PG-2BN can measure to higher vacuum levels compared to PG-2B ■ Minimal aging changes even with long hours of continuous use ■ Employs a unique special Pirani bulb for stable operation and reliable measurement values ■ Easy to handle, allowing for a wide range of simple vacuum measurements *For more details, please refer to the PDF materials or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "WTC-100" is a Tesla coil that integrates a transformer within the probe. It allows for visual confirmation of the vacuum state in glass vacuum lines and glass ampoules by observing color, which can be used to identify leak locations. 【Features】 ■ Discharge of 2 kilovolts from the tip ■ Compact and easy to carry due to the integration of the transformer within the probe ■ Visual confirmation of the vacuum state in glass vacuum lines and glass ampoules (approximately 1k to 1Pa) ■ Can be used to identify leak locations in glass vacuum lines and glass ampoules. (Please note that it may not be possible to identify leaks depending on the condition and location of cracks.) *For more details, please request documentation or view the PDF data available for download.

• Other physicochemical equipment
• Transformers

The "Digital Pirani Vacuum Gauge" is an instrument that measures vacuum levels by heating a wire and detecting temperature changes. It can measure from 1×10⁴ to 1×10⁻¹ Pa. It features an LED display that offers excellent visibility, making the measurement values easy to read. Additionally, it is equipped with four contact points, allowing for system control compatibility. We offer a lightweight and compact "PGD-001 model" and a "PGD-0024H model" that allows for easy confirmation of relay contact measurement values on an LCD display. You can choose according to your application. 【Features】 ■ LED display ■ Four contact points ■ Traceability certificates can be issued as an option *For more details, please refer to the catalog or feel free to contact us.

• Vacuum Equipment
• Other electronic measuring instruments
• Other physicochemical equipment

The "Vacuum Gauge Comprehensive Catalog" is a comprehensive catalog featuring vacuum gauges from Wakida Rigaku Co., Ltd., which mainly manufactures and sells wide-range vacuum gauges, ion vacuum gauges, Pirani vacuum gauges, Penning vacuum gauges, and vacuum measurement spheres. It includes a wide range of vacuum gauges that respond to tomorrow's technology, such as the thermal conductivity vacuum gauge "Pirani vacuum gauge" and "ion vacuum gauge." Please feel free to contact us if you have any requests. [Contents] ■ Digital Pirani Vacuum Gauge ■ Pirani Vacuum Gauge ■ Ion Vacuum Gauge ■ Wide-Range Vacuum Gauge ■ Discharge Vacuum Gauge (Penning type), etc. *For more details, please refer to the catalog or feel free to contact us.

• Other electronic measuring instruments
• Other physicochemical equipment