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 solid flow meter measures the mass flow of dry bulk material — cement, soybean meal, fly ash, plastic pellets, sugar, mined coal — moving through a pipe, chute, or on a belt. Unlike liquid flow, there is no single 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 Apr 25, 2026 — Reviewed by Sino-Inst Engineering Team A BTU meter for chilled water quantifies cooling energy by combining a flow meter with a matched pair of RTDs on the supply and return. On a typical HVAC loop Read More
Updated April 25, 2026 — Reviewed by Sino-Inst Engineering Team Static vs dynamic vs total pressure is the first question every pipeline, HVAC, and aerospace technician has to answer before picking a transmitter. The three pressures are not separate forces Read More
Updated on April 25, 2026 — “Can I install this flow meter vertically?” is the wrong question. The right one is: which meter, and in which direction? A turbine installed downflow destroys its bearings in months. A rotameter installed horizontally Read More
Updated: April 24, 2026 — by Sino-Inst Engineering Team Molasses, honey, syrup, resin, and asphalt all share the same headache: they stop common flow meters from working. Orifice plates clog. Electromagnetic meters read zero when the fluid is non-conductive. Turbine 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 Every differential pressure flow meter — orifice plate, venturi, flow nozzle, V-cone, averaging pitot — runs the same equation. Bernoulli says the velocity through a restriction goes as the square root of the pressure drop. Multiply Read More
