A cryogenic level sensor measures the liquid level of nitrogen, oxygen, argon, hydrogen, or LNG inside vacuum-jacketed (VJ) tanks at temperatures between −162 °C and −253 °C. Because every cryogen has its own dielectric constant, vapor pressure, and stratification behavior, the right Read More
A capacitive fuel level sensor measures diesel, petrol, kerosene, or jet fuel by treating the tank as a parallel-plate capacitor and reading the change in capacitance as fuel rises and falls. It is non-mechanical, has no moving parts inside the Read More
A transformer oil level indicator monitors mineral or ester insulating oil inside a power transformer’s main tank, conservator, or on-load tap changer (OLTC). It is the single most important piece of low-voltage instrumentation on the asset — a 10 % drop Read More
Updated April 24, 2026 by the Sino-Inst Engineering Team A magnetic level gauge is a mechanical indicator that reads liquid level from the outside of a vessel using a magnetic float sealed in a bypass chamber. No power, no sight Read More
Updated: April 23, 2026 Septic tanks, sewage holding tanks, and lift station wet wells are the dirtiest service for any level sensor. Solids settle on the bottom. Grease and FOG (fats, oils, grease) form a scum layer on top. Hydrogen Read More
Updated: April 22, 2026 Measuring level inside a blast furnace shaft is one of the hardest jobs in process instrumentation. The environment combines red-hot gas, dust clouds, pressure pulses, and electromagnetic noise. Guided-wave probes and mechanical plumb-bobs wear out in Read More
Updated: April 22, 2026 Sulfuric acid storage tanks are the worst-case scenario for level instrumentation. Concentrated H₂SO₄ corrodes 316 stainless, dilute H₂SO₄ corrodes differently but just as fast, and the vapor space is full of fuming droplets that coat any Read More
Updated: April 21, 2026 | Sino-Inst Engineering Team Most ultrasonic level transmitter problems are installation problems, not sensor problems. A sensor mounted 20 cm inside its own blanking distance will read zero no matter how good the electronics are. This Read More
Updated: April 16, 2026 | By Sino-Inst Engineering Team Most tank level sensor guides start with the sensor — radar, ultrasonic, hydrostatic, capacitance — and tell you what each one does. That is the wrong way around. The fluid you Read More
Updated: April 15, 2026 A capacitive liquid level sensor detects level by measuring the capacitance change between a probe and the tank wall (or a second probe) as the liquid rises or falls. The liquid acts as the dielectric — Read More
