Keller Company Low Water Level Submersible Level Sensor 46X/46XEi
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).
basic information
Water level range: 0 to 30 cmH2O to 0 to 3 mH2O (Pressure range: 0 to 3 kPa to 0 to 30 kPa) Accuracy: ± 0.1 %FS Overall accuracy: ± 0.2 %FS @ 10 to 50 °C Output: RS485, 4 to 20 mA, 0 to 10 V Features: Ceramic sensor element *Software CCS30 The license-free software CCS30 is used for configuration and recording measurement values. Measurement - Real-time graphic display - Adjustable measurement and storage intervals - Export function - Connection to bus systems - Up to 100 measurements per second Configuration - Information retrieval (pressure and temperature ranges, software version, serial number, etc.) - Zero and span recalibration - Analog output rescaling (units, pressure range) - Low-pass filter adjustment - Selection of instrument address and baud rate
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For low water level use
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Understanding Explosion-Proof Zones and Equipment Categories Correctly - What is an ATEX Zone? A Clear Explanation Using Real Examples
There is always a risk of explosion in areas where flammable gases, vapors, mists, or dust may be present. Examples include the chemical industry, energy supply, biogas plants, solvent processing facilities, hydrogen infrastructure, and gas distribution systems. An important point to understand about explosion protection is the location of the measurement point within the zones. A common misconception is that if flammable gas is used, the highest hazard classification automatically applies; however, the frequency of explosive atmospheres can vary significantly from one industrial plant to another. For instance, explosive mixtures may always be present inside a tank, while they rarely occur in well-ventilated piping areas, typically only during abnormal situations. This is precisely why ATEX systems classify zones as 0, 1, and 2. The related links below provide detailed explanations of the basic principles of ATEX zones, real-life examples from hydrogen filling stations, comparisons of protection concepts (why safety barriers or isolation amplifiers are necessary), and what types of pressure sensors we at KELLER can offer for each zone.
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KELLER's level gauges boast Swiss quality and high precision. A clear explanation of the principles, product lineup, and application examples!
Optimized design tailored to specific applications and environments allows KELLER's level meters to achieve reliable measurements even under harsh conditions. Wireless solutions are also available, enabling remote data transmission. Why do KELLER's level meters receive so much support? This leaflet reveals the secret!
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Our company is the Japanese branch of KELLER Pressure (Switzerland). Since its establishment, KELLER Pressure has developed and produced all its products at its factory in Winterthur, Switzerland, and is a leading manufacturer of pressure transducers and pressure transmitters, certified with ISO 9001. As a core business, we manufacture and sell over 1.3 million pressure measurement cells annually, offering products with pressure ranges from 5 mbar (500 Pa) to 2000 bar (200 MPa). With the extensive experience gained from all our products, our solutions can cater to a variety of applications. We are highly regarded as a manufacturer of high-precision pressure sensors and also accommodate OEM and custom products. We have received positive feedback from many customers. Contact: sales.jp@keller-pressure.com