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  3. KELLER Pressure Japan 日本支社
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KELLER Pressure Japan 日本支社

addressTokyo/Toshima-ku/Sunshine 60, 57th Floor, Higashi-Ikebukuro, Toshima City, Tokyo
phone03-5944-9199
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last updated:Oct 23, 2025
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KELLER Pressure Japan List of Products and Services

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Pressure transducer Pressure transducer
Pressure transmitter Pressure transmitter
圧力トランスミッタ / デジタル出力タイプ 圧力トランスミッタ / デジタル出力タイプ
Pressure transmitter (differential pressure gauge) Pressure transmitter (differential pressure gauge)
圧力トランスミッタ / 防爆タイプ 圧力トランスミッタ / 防爆タイプ
Digital pressure gauge Digital pressure gauge
Water level gauge Water level gauge
Water level data logger Water level data logger
Calibrator Calibrator
Technical information, application examples Technical information, application examples
圧力トランスミッタ

圧力トランスミッタ / 防爆タイプ

本質安全防爆、耐圧防爆型圧力トランスミッタ(圧力センサ)です

Keller Company Pressure Sensor 23-Ed/25-Ed, Explosion-Proof Type

Achieving miniaturization with pressure sensors designed for high pressure and explosion-proof applications!

The pressure sensor series 23-Ed is designed for industrial applications and is based on the 10L series pressure transducer, which has long-term stability and features an analog circuit. The modular concept allows this series to flexibly accommodate pressure connections and electrical connections according to customer preferences. The 25-Ed has a G1/2 flush diaphragm structure for pressure connection. Pressure-resistant explosion-proof housing – suitable for use in explosive atmospheres. Various options are also available, including pressure connections, electrical connections, port shapes, outputs, connection materials, oil filling, oxygen compatibility, and special specifications. 【Features】 - Achieves miniaturization while being pressure-resistant and explosion-proof - Welded structure without internal seals - Analog signal output of 4–20mA or 0–10V - G1/2 flush diaphragm type also available (25-Ed)

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Keller Company Explosion-proof High-Precision Pressure Sensor 33X-Ed/35X-Ed

Achieving high precision and miniaturization with pressure sensors that are explosion-proof and pressure-resistant!

The pressure sensor series 33X-Ed achieves an extremely high accuracy of 0.05% full scale (FS) using a mathematical correction method. Moreover, this accuracy is compensated within a temperature range of 10 to 40°C. If an additional option is selected, a high precision of 0.01% FS (or that accuracy if calibrated at an accredited test lab) can be achieved. In addition to a digital RS485 interface, analog current or voltage outputs are also available. The 35X-Ed features a G1/2 flush diaphragm structure for pressure connection. Pressure-resistant explosion-proof housing – suitable for use in explosive atmospheres. Various options are also available, including pressure connections, electrical connections, port shapes, outputs, connection materials, oil filling, oxygen compatibility, special specifications, and more. We also offer license-free software CCS30 for the RS485 interface. 【Features】 - Compact design despite being explosion-proof - Welded structure without internal seals - Analog signal output of 4-20mA or 0-10V in addition to digital RS485 - G1/2 flush diaphragm type also available (35X-Ed)

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Keller Company Pressure Sensor Series 23SYEi/25YEi

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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Keller Company intrinsic safety explosion-proof high-precision pressure sensor 33XEi/35XEi

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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Keller Company Essential Safety Explosion-Proof Low Pressure Sensor Series 41X-Ei

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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Keller Company Hydrogen Application Pressure Sensor Series 23SY-H2(Ei)

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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