Elesa+Ganter 11131-KN Electrical Level Indicator: HCV.127-E-NO-M12-KN Technical Overview
The Elesa+Ganter 11131-KN electrical level indicator, model HCV.127-E-NO-M12-KN, is designed for hydraulic reservoirs and oil tanks where visual level control must be supported by an electrical minimum-level signal. This product type combines a transparent technopolymer level indicator with a magnetic float and M12 connector, helping maintenance teams detect low fluid conditions before they become operational problems.
Material and Construction
The HCV-E series uses transparent PA-T technopolymer, selected for resistance to shocks, oils with additives, solvents, hydrocarbons, petrol, naphtha, and phosphoric esters. The float is made from glass-fibre reinforced polyamide and includes a magnetic element that activates the electrical contact when the minimum level threshold is reached. Floating is ensured with fluids having densities higher than 800 kg/m3.
Electrical and Mechanical Features
This model uses a normally open contact. In practical terms, the electrical contact closes when the minimum fluid level is reached. The KN execution uses a 4-pole M12x1 connector. The voltage range for KN type is below 30 Vac or below 30 Vdc, and the maximum switching current is 1 A. The HCV.127 format has a 127 mm centre distance and an overall length of 153 mm.
The indicator is suitable for oil service up to 90°C continuous working temperature. In laboratory testing with mineral oil type CB68 at 23°C, the HCV.127 weld withstood 18 bar for a limited period. Actual suitability should always be checked according to the real fluid, temperature, and pressure conditions of the system.
Why It Matters in Hydraulic Systems
The Elesa+Ganter 11131-KN electrical level indicator gives operators two layers of information: direct visual reading and electrical minimum-level detection. This is valuable in hydraulic power units, lubrication systems, and industrial reservoirs where low oil level can cause overheating, pump damage, or unstable machine performance.
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Elesa+Ganter 11131-KN FAQ
What does NO mean on this level indicator?
NO means normally open. The contact closes when the minimum level is reached, allowing the control system to detect a low-level condition.
What connector does this model use?
The KN version uses a 4-pole M12x1 connector, which is widely used in industrial sensor wiring.
What is the centre distance?
The HCV.127 format has a 127 mm centre distance and 153 mm overall length.
Can it be used with hydraulic oil?
Yes. It is designed for hydraulic and oil reservoir applications, with continuous working temperature up to 90°C when used with oil.
Why use an electrical level indicator instead of only a sight glass?
An electrical level indicator provides a signal when the minimum level is reached, making it more suitable for automated monitoring and preventive maintenance.