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The S5 series of fuel level sensors is engineered to deliver dependable and continuous fuel monitoring, specifically designed for generator and genset tank applications. Addressing the critical need for accurate fuel management in power generation, this sensor provides a stable current (4-20mA) output signal. For industrial procurement and system engineers, the 4-20mA standard represents a significant advantage in signal integrity. Unlike voltage-based signals that may degrade over long cable runs typical in large-scale facilities, the current output ensures that fuel level data remains highly accurate from the tank to the remote control panel. This facilitates straightforward integration with existing generator control units, PLCs, and remote monitoring systems, allowing operators to maintain optimal fuel levels without the risk of unexpected power interruptions.
Consistency in fuel measurement is paramount for continuous power supply operations. These sensors employ a proven magnetic float mechanism equipped with an integrated PCB. As the fuel level fluctuates within the genset tank, the float adjusts accordingly, triggering the internal components to provide real-time, continuous measurements. This mechanical and electronic synergy helps prevent the erratic readings often associated with less stable sensing technologies. By utilizing a direct contact float design, the S5 series ensures that the monitoring system receives consistent data, enabling facility managers to schedule timely refueling and prevent costly generator downtime caused by fuel starvation. The highly effective mechanism translates to lower maintenance requirements and a longer operational lifespan in demanding industrial environments.
Understanding that different generator tanks and monitoring systems require varying degrees of measurement granularity, they offer a choice of resolutions at 7mm, 10mm, and 21mm, catering to various precision requirements. This specific S5-400 model features a 21mm resolution, which is strategically designed for standard and large-capacity generator tanks. A 21mm resolution provides an ideal balance between monitoring accuracy and cost-efficiency. For many heavy-duty genset applications, tracking the macro-level fuel consumption is more critical than millimeter-by-millimeter tracking. The 21mm step ensures operators receive clear, actionable fuel level updates without overwhelming the control system with unnecessary micro-fluctuations caused by fuel sloshing or engine vibrations during active generator operation.
Choosing the right fuel level sensor is a critical decision that impacts the overall reliability of backup and primary power systems. The S5-400 21mm resolution sensor addresses the core pain points of genset fuel monitoring by combining the long-distance transmission stability of a 4-20mA output with the structural dependability of a float-based measurement system. For purchasing managers and technical buyers, this means acquiring a component that not only integrates effortlessly into current architectures but also significantly reduces the risk of operational failures. The integrated PCB design streamlines the internal circuitry, further minimizing potential failure points and ensuring that your power generation equipment remains ready and fully fueled whenever it is required.
| model # | S5-400 |
| Length | 400mm from the bottom to the edge of head unit, 110mm~3000mm is customizable |
| Material | stainless steel probe and NBR float |
| Output | 4-20mA |
| Resolution | 21mm in resolution (default) |
| Float dimension | 35*32 NBR |
| Mounting | SAE-5 hole flange |
| Cable length | default length is 460mm without connector; length is customizable |
The S5-400 level sensor is meticulously engineered to meet the stringent demands of harsh industrial environments. Designed as a loop-powered 4–20mA level transmitter, it efficiently converts liquid height variations into a highly robust and stable current signal. This standardized electrical output ensures seamless integration with modern control systems and allows the signal to travel noise-free over long distances of up to 1 km, making it a reliable choice for complex tank monitoring setups and demanding industrial procurement needs.
At the core of the sensor lies a precision piezo-resistive or magnetostrictive core, which guarantees exceptional measurement reliability and responsiveness. It is securely housed within a durable 304 or 316 stainless steel probe, providing excellent resistance against corrosion, mechanical wear, and fluid impact. Combined with an IP67-rated sealing, the internal electronic components are fully protected against dust and liquid ingress, ensuring long-term operational stability even under challenging environmental conditions.
For engineers and procurement professionals focused on accurate data acquisition, this model delivers an impressive ±0.25 % F.S. accuracy. Furthermore, the optimized electrical design draws less than 4 mA at zero level—leaving the full 20 mA span available for true process resolution. Coupled with extensive customization capabilities—including probe lengths ranging from 110mm to 3000mm and adaptable cable configurations—the S5-400 provides a versatile, highly dependable technical solution tailored to specific project and equipment requirements.