Optimizing hydroelectric power generation depends on reliable water level monitoring. However, sensors used in remote intake locations are frequently compromised by environmental factors and electrical surges, leading to costly downtime and maintenance.
Hydroelectric facilities rely on water level monitoring for optimal power generation and safety. Remote intake locations often utilize pressure sensors in stilling wells to manage these measurements. However, lightning strikes in areas with poor grounding and the harsh environmental conditions of mountain settings can lead to frequent sensor failures. This disrupts operations, increases maintenance costs, and undermines the stability of renewable energy contributions to the power grid.
The LMK858 lightning overvoltage protected plastic submersible liquid level sensor offers a targeted solution. Its integrated lightning protection safeguards against damaging surges, ensuring continuity of operation. The sensor’s chemically resistant materials and robust construction are designed to withstand acidic water and the rigors of exposed environments. With its submersible design and industry-standard 4-20mA output, the LMK858 is engineered to enhance the reliability and efficiency of hydroelectric water level monitoring.
Key Application Features
- Lightning Protection: The integrated lightning protection is a key feature that directly addresses the primary failure cause.
- Chemical Resistance: The PP-HT housing, ceramic diaphragm and PVC cable should provide resistance to the acidic water conditions.

LMK 858 Lightning Overvoltage Protected Plastic Submersible Liquid Level Sensor
- SKU ID: s1-lmk858-0003
- Part No: 415-2000-R-C-1-1-1-2-006-000
- Pressure Range: 0 to 0.2
- Units: bar
- Reference Type: Gauge / Vented (atm to +P)
- Output Signal: 4-20mA, 2 wire
- Accuracy: 0.25% FS
- Installation Type: Submersible probe with flush diaphragm and detachable nose cone
- Housing Material: PP-HT
- Diaphragm Material: Ceramic Al2O3 99%
- Media Exposed Seals: FKM
- Cable Type: PVC cable (grey, Ø 7.4 mm)
- Cable Length: 6
- Cable Length Units: Metres (m)