KELLER's level gauges boast Swiss quality and high precision. A clear explanation of the principles, product lineup, and application examples!

Low-cost immersion type water level gauge with a diameter of 21mm.

The 26Y series water level gauge is low-cost yet offers high accuracy and excellent long-term stability. It is available in absolute pressure or gauge pressure types (using an open atmospheric pipe). The startup time is quick at just 5ms, making it ideal for data logger applications. With the built-in lightning protection option, it can be used in various harsh environments such as rivers, wells, and boreholes. It features excellent temperature characteristics due to digital correction of output errors caused by temperature changes.

• Pressure

Achieves ±0.1% FS accuracy with RS485 output.

The high-precision water level gauge series 26X mathematically corrects temperature influences and non-linearity accurately on a microcontroller. There are types for absolute pressure or gauge pressure (using an open atmospheric pipe). In addition to the RS485 interface, measurement results can also be output as an analog signal via a built-in D/A converter, and scaling settings (range changes) can be made through digital signals. An option with built-in lightning protection devices is also available, allowing use in various harsh environments such as rivers, wells, and boreholes. It has excellent temperature characteristics due to digital correction of output errors caused by temperature changes. 【Features】 - Standard dual outputs of digital RS485 and analog output - Analog output can be range-changed via digital RS485 - Achieves excellent long-term stability - Maintenance-free 【Technology】 - Piezo-resistive pressure sensor - Correction technology using a mathematical model to produce accurate pressure values - Robust stainless steel housing

• Pressure

Strong in durability and wear resistance, ideal for sewage pump stations and manhole pumps!

The 26KyX series water level gauge is a submersible water level gauge specially developed for sewage and wastewater applications. It features a diaphragm made of Kynar with PTFE properties, providing resistance to viscous media along with excellent hardness and abrasion resistance. The 26KyX water level gauge can be easily installed in harsh environments without the need for expensive protective cages that take up space. Measurement results can be obtained via an RS485 interface, as well as through analog signal output via a built-in D/A converter, allowing for scaling settings (modification of the water level range). A version with a built-in lightning protection device is also available (optional). 【Features】 - Anti-fouling diaphragm design - Body material made of SUS316L - RS485 serial communication - Accurate correction technology

• Pressure

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).

• Pressure

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.