山本電機製作所 List of Products and Services

We would like to introduce the "piping components" handled by Yamamoto Electric Manufacturing. The "pulsation suppressor" is used when the turbulence of the air being measured is intense, causing the needle or output to fluctuate. We offer options for both vinyl and metal pipes. In addition, we provide a "corrosive gas absorber" used for measuring gases that can corrode the materials used in instruments (such as aluminum alloys, copper alloys, iron, steel, etc.) and an "air filter for instruments." 【Corrosive Gas Absorber Features】 ■ Connects in the middle of the piping to suppress corrosion caused by corrosive gases ■ Used for measuring gases that can corrode the materials used in instruments ■ Available in two types: for vinyl pipes and for metal pipes ■ Made of stainless steel *For more details, please refer to the PDF document or feel free to contact us.

• Piping Materials
• filter

The "EMP5A" is a receiving instrument that can display pressure, air volume, and wind speed when combined with a Manostat transmitter. It is equipped with two alarm outputs that allow for operation selection according to the application. Additionally, it has a built-in DC power supply for two-wire differential pressure transmitters, and the air volume and wind speed measurement receiver also includes a square root calculation function. 【Features】 ■ Built-in DC power supply for two-wire differential pressure transmitters ■ Two alarm outputs ■ Built-in square root calculation function (for air volume and wind speed measurement receiver only) ■ Front panel IP66 structure *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

The "WO81" is a manometer gauge that allows for polarity change of the connector and enables piping without crossing the tubes. We offer three types of outer shapes, three types of fixed needles, and a total of 24 pressure ranges from 50 Pa to 100 kPa and ±50 Pa to ±3 kPa. It also supports airflow and wind speed memory, providing a rich lineup. 【Features】 ■ Easy-to-read wide-angle scale (pointer rotation angle 270°) ■ Easy polarity reversal piping connection ■ Unique mechanism that is less affected by abnormal high-pressure surges ■ High-performance silicone rubber diaphragm with low hysteresis ■ Band link mechanism that prevents pointer wobble *For more details, please download the PDF or feel free to contact us.

• Pressure

We offer the manometer gauge 'WO71', which can be used for detecting air filter clogging, in two types: flat type differential pressure gauge and compact differential pressure gauge. It can be utilized in areas such as general factory management facilities, dust collector negative pressure, and air conditioning equipment differential pressure. Please feel free to consult us if you have any requests. 【Features】 ■ Flat type differential pressure gauge (N type, R type) - Slim design with standard rotating connection for smart piping - Achieves a very thin thickness of 29.2mm as a manometer gauge ■ Compact differential pressure gauge (FS type, PS type) - Comes standard with a pointer for convenient setting of differential pressure target and limit values - Various piping connections are possible - Changing the polarity is possible simply by swapping the high-pressure and low-pressure connections *Only for side piping *For more details, please download the PDF or feel free to contact us.

• Pressure

The "FR51A" is a manometer gauge that excels in linearity of indication, hysteresis, and reproducibility, capable of measuring differential pressure in the micro-pressure range with high precision. It features a unique mechanism that is less affected by abnormal high-pressure surges. We offer three types of scales: horizontal scale, vertical scale, and color-coded horizontal scale, as well as 11 pressure ranges: 50Pa to 5kPa, ±50Pa, and ±100Pa. 【Features】 ■ High-performance silicone rubber diaphragm with low hysteresis ■ Band link mechanism with no pointer wobble ■ Compact and lightweight design ■ Connection fittings for vinyl or rubber tubes (inner diameter 4) *For more details, please download the PDF or feel free to contact us.

• Pressure

The "EMTGP1" is a manostat transmitter suitable for monitoring static pressure (negative pressure) in exhaust ducts containing corrosive gases within production facilities. We offer five pressure ranges from -200 Pa to -2 kPa. It can be used in areas such as general factory management equipment, dust collector negative pressure, and differential pressure in air conditioning equipment. *Not suitable for measuring flammable gases. [Applications] ■ Air filter clogging detection ■ Clean room room pressure measurement ■ Bag filter clogging measurement ■ Dynamic pressure measurement of ventilation and exhaust systems *For more details, please download the PDF or feel free to contact us.

• Other process controls

The "EMT1" is a manostat transmitter that employs a high-performance diaphragm and a differential inductance method for displacement sensors. We offer 33 variations ranging from 10 Pa to 100 kPa and ±10 Pa to ±5 kPa. It has been widely delivered in advanced differential pressure management fields and has achieved a high level of performance. Additionally, the piping connection can be selected for either vinyl tubing or metal tubing. 【Applications】 ■ Clean room room pressure measurement ■ Air filter clog detection ■ Airflow and air velocity measurement for ventilation and exhaust systems *For more details, please download the PDF or feel free to contact us.

• Other process controls

The "EMD8A" is a Manostar digital sensor designed with ease of integration into devices in mind, featuring the use of RITS connectors and snap-in panel mounting. The variant sensor employs a high-performance diaphragm and a differential inductance method. Additionally, it is equipped with a variety of functions such as a moving average filter, maximum and minimum value memory, and comparison output. 【Features】 ■ Connector connection type ■ Compliant with UL standards and EC directives (CE marking) ■ Pressure range: 14 types from 50Pa to 5kPa, ±50Pa to ±500Pa ■ Designed for easy integration into devices ■ Various functions including display, comparison output, and analog output ■ Highly visible 12mm high red LED display, etc. *For more details, please download the PDF or feel free to contact us.

• Sensors

The "EMD7" is a manometer digital sensor equipped with additional features for differential pressure measurement, including a moving average filter, maximum and minimum value memory, and a delay timer. It offers a selection of 8 ranges from 0 to 100 Pa and 0 to 5 kPa, and the analog output function can be selected as either 4-20 mA or 1-5 V. Additionally, the alarm output format can be chosen between NPN or PNP open collector. 【Features】 ■ Terminal connection type ■ Compliant with UL standards and EC directives (CE marking) ■ Pressure ranges available in 8 types from 100 Pa to 5 kPa ■ Alarm function modes can be set according to application needs *For more details, please download the PDF or feel free to contact us.

• Sensors

The "MS99S" is a manostat switch of intrinsic safety explosion-proof type, confirmed by testing and other means at public institutions for its explosion-proof safety. It can be used in various fields such as general factory management equipment, dust collector negative pressure, air conditioning equipment differential pressure, and filter pressure loss management. Please feel free to consult us if you have any requests. 【Applications】 ■ Air filter clog detection ■ Clean room room pressure measurement ■ Bag filter clog measurement ■ Dynamic pressure measurement of ventilation and exhaust equipment *For more details, please download the PDF or feel free to contact us.

• switch

The "MS99" is a manostat switch that allows for a wide range of settings due to its adoption of a multi-threaded design. Setting the operating pressure is easy and can be done simply by aligning the graduated dial. Additionally, the exchangeable socket type allows for various piping connections by swapping out the socket. 【Features】 ■ Achieves high precision ■ Complies with UL standards ■ Commonality for general and micro loads ■ Easy to change wiring direction ■ Lineup includes products that comply with EC directives (CE marking) (Rated voltage specifications of 30VDC or less) *For more details, please download the PDF or feel free to contact us.

• switch

The QDP33 is a digital differential pressure gauge that is among the smallest in the industry and can be mounted closely. The main screen features a high-quality white LCD, capable of displaying 12-segment alphanumeric characters. It is also equipped with a proprietary capacitive sensor that supports various differential pressure ranges (including zero center range). 【Features】 ■ Connector connection type ■ Compliant with UL standards and EC directives (CE marking) ■ Pressure ranges available in 16 types: 50Pa to 2kPa, ±50Pa to ±2kPa ■ Equipped with a proprietary capacitive sensor ■ Among the smallest in the industry ■ Refined design and visibility *For more details, please refer to the PDF materials or feel free to contact us.

• Other measurement, recording and measuring instruments

This catalog is a comprehensive catalog of Yamamoto Electric Manufacturing Co., Ltd., which designs, manufactures, and sells measuring instruments, system control devices, and electrical and mechanical equipment. It features our original brand "Manostar" products, including the high-precision differential pressure gauge "Manostar Gauge" and "Manostar Switch." We offer a wide variety of products, so please feel free to contact us if you have any requests. [Contents] ■ Astar Gauge ■ Manostar Switch ■ Manostar Digital Sensor ■ Manostar Transmitter ■ Receiving Meter, etc. *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments
• Mechanical Design
• Instrumentation and Control Systems