Understanding Explosion-Proof Zones and Equipment Categories Correctly - What is an ATEX Zone? A Clear Explanation Using Real Examples

Intrinsic safety explosion-proof small pressure sensor covers 0 to 10 kPa to 0 to 100 MPa!

The intrinsically safe explosion-proof small pressure sensor 23SYEi/25YEi is designed to meet advanced and diverse requirements in industrial applications, including pressure range, pressure connection, output signal, and electrical connection (25Y features a flush diaphragm structure; see the second photo). With a modular concept, this series offers high flexibility in specifications and can respond quickly with short lead times. A temperature sensor is integrated into the circuit, correcting errors due to temperature changes and contributing to improved overall accuracy. Standard types (non-explosion-proof types) 23SY and 25Y are also available. 【Features】 - Wide temperature compensation: ± 0.7 %FS @ -10 ~ 80℃ - Minimum pressure range starting from 10 kPa - Excellent long-term stability - Robust SUS housing 【Technology】 - Piezo-resistive pressure sensor - Welded structure without internal seals - Analog output: 4 ~ 20 mA, 0 ~ 5 V, 0 ~ 10 V, etc.

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The pressure sensor for hydrogen applications has finally arrived!

The 23SY-H2(Ei) series is characterized by a low embrittlement rate due to an increased nickel content in the stainless steel used. The gold-plated diaphragm minimizes hydrogen diffusion. Additionally, the pressure sensor is compensated across the entire temperature range, providing excellent long-term stability. The 23SY-Ei-H2 series is a reliable solution equipped with long life, high precision, and safety, meeting various hydrogen requirements. 【Features】 〇 Adoption of stainless steel with increased nickel content as a measure against hydrogen embrittlement 〇 Use of gold-plated diaphragm widely used in hydrogen applications to minimize hydrogen diffusion 〇 Achieves ±0.7% accuracy within -10 to 80°C 〇 Excellent long-term stability 〇 Welded structure without internal seals 〇 Available in intrinsically safe explosion-proof type (23SY-Ei-H2)

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Intrinsic safety explosion-proof pressure sensor achieves high precision!

The intrinsically safe explosion-proof pressure sensor 33XEi achieves an extremely high accuracy of 0.05% full scale (FS) over a temperature range of 10 to 40°C through a mathematical correction method. An additional option for 0.01% FS high precision is also available. In addition to a digital RS485 interface, analog current or voltage outputs can be obtained. The pressure connection of the 35XEi features a G1/2" flush diaphragm structure. 【Features】 - Accuracy of ±0.05% FS over a temperature range of 10 to 40°C - Standard dual outputs of digital RS485 and analog output - Analog output can be range-adjusted via digital RS485 - Excellent long-term stability 【Technology】 - Piezo-resistive pressure sensor - Correction technology using a mathematical model to produce accurate pressure values

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Low pressure intrinsic safety explosion-proof pressure sensor achieves high precision!

The capacitive pressure sensor series 41X-Ei is designed to measure gauge pressure in low-pressure ranges. Through a mathematical correction method, it achieves high accuracy of ±0.2 to 0.3% FS in low-pressure measurements within a temperature range of 10 to 50°C. In addition to a digital RS485 interface, analog current or voltage outputs are also available. 【Features】 - Although calibrated in the standard range, programming of the analog output signal within the standard pressure range is possible using the license-free software CCS30 (e.g., standard pressure range 0 to 10 kPa/output 4 to 20 mA → pressure range 2 to 6 kPa/output 4 to 20 mA). - Using software CCS30 and converter K-114, pressure values can be displayed on a PC, allowing for recording of pressure signals, graphical display, and zero adjustment. - Up to 128 transmitters can be connected to the bus system. - Intrinsically safe explosion-proof type.

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It is also possible to measure low water levels of 30cmH2O! There is also an explosion-proof type available.

The water level gauge series 46X is a low-level water gauge that uses a ceramic sensor element, capable of measuring water levels from 0 to 30 cmH2O. By performing mathematical correction processing on a microprocessor digital circuit, it achieves an accuracy of ±0.1% FS. In addition to a digital RS485 interface, it also features an analog output, allowing for scaling settings (changing the water level range). An intrinsically safe explosion-proof type 46XEi is also available. 【Features】 〇 Utilizes a capacitive method. The ceramic sensor element is suitable for low-pressure measurement. 〇 Standard equipped with both digital RS485 and analog outputs. 〇 Digital correction of output signals. 〇 Explosion-proof type available (41XEi).

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High-precision differential pressure sensor using two absolute pressure sensors - Excellent pressure resistance on one side!

The differential pressure sensor series PD-39X is a high-precision model that indirectly measures differential pressure using two absolute pressure sensors and boasts high pressure resistance performance. In addition to a digital output (RS485), it comes standard with two outputs: analog current or voltage output. The analog output can be freely scaled within the line pressure range based on the settings of the digital signal. There is also an intrinsically safe explosion-proof type available (PD-39X-Ei).

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Digital pressure gauge with ±0.1% accuracy, explosion-proof type available, featuring Max/Min value display function.

The compact digital pressure gauge LEO2 offers high precision measurements at a reasonable price. The minimum/maximum values can be displayed simultaneously with the current pressure value, and multiple pressure units can be selected. It can be mounted in your desired position using a swivel adapter. The power supply uses a standard CR2430 battery (included). An intrinsically safe explosion-proof type is also available. 【Features】 〇 High precision: ±0.1%FS 〇 Various pressure units available (bar, mbar, hPa, kPa, MPa, PSI, kg/cm2) 〇 Zero point calibration via button 〇 Automatic shutdown 〇 Minimum/maximum value display 〇 Compact design 〇 Battery life up to 1000 hours 〇 Intrinsically safe explosion-proof type available (LEO2-Ei)

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±0.05% accuracy / Digital pressure gauge with logging function, explosion-proof type available

The high-precision digital pressure gauge LEO Record can record pressure and temperature for extended periods thanks to its memory function. The data logger can be connected to a computer via an RS485 interface for reading the recorded data. The current pressure value can be displayed in multiple pressure units. It is powered by a 3.6V lithium battery. An intrinsically safe explosion-proof type is also available. 【Features】 - Can record pressure and temperature for long periods - High precision (±0.05%FS @ 20–25 °C) - Ultra-low power consumption, long battery life - Can display in various pressure units (bar, mbar, hPa, kPa, MPa, PSI, kg/cm2, cmH2O, mH2O, etc.) - Zero point calibration via button - Intrinsically safe explosion-proof type available

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Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.

In civil engineering sites such as mountainous areas and construction sites, it may be necessary to use wooden boards on slopes or inclined access roads. Hyper CLT boards are civil engineering materials utilizing wood CLT, which can be laid not only on flat ground but also on sloped terrain. They can be used for temporary roads, access routes, heavy machinery entry paths, and measures against muddy conditions, creating a driving environment that takes advantage of the unique surface characteristics of wood. The 5×10 board weighs approximately 230 kg, and the 5×20 board weighs about 460 kg, making them lightweight and easy to install and remove even with small machinery, which is a notable feature for maneuverability in narrow sites. This wooden board is registered as a technology under the Ministry of Land, Infrastructure, Transport and Tourism's NETIS system as "TH-250021-A," and can also be utilized for safety measures and innovative ideas in public works.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" or "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be performed even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

● The production time for cast prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or varying dimensions, can be molded at the same time in one molding process. This allows for the verification of multiple types in a short period.