A thermal gas mass flow meter (also the core sensing unit of MFC, Mass Flow Controller) is an instrument that directly measures the mass flow rate of gas by detecting heat transfer between a heating element and flowing gas. It outputs mass flow signals without complex temperature and pressure compensation, dominating small-to-medium gas flow measurement in precision industries.

Thermal MFC: Standard for low & medium flow semiconductor, coating and laboratory processes
Coriolis meter: High-precision large-flow measurement of rare or corrosive specialty gases
Laminar differential pressure meter: Heavy industrial large-flow, high-temperature crude process gas measurement

Small nitrogen fertilizer plants mainly produce urea, ammonium bicarbonate and other common agricultural fertilizers, involving gasification, carbonization, ammonia recovery, wastewater treatment and other complex production processes. The production environment features corrosive ammonia liquid, circulating desulfurization solution, high humidity, flammable and explosive ammonia gas, as well as medium adhesion and foam interference. Traditional level measuring instruments such as float level gauges and ultrasonic level gauges are prone to failure, stuck movement and inaccurate readings under such harsh working conditions

Probe selection for capacitive level gauges should consider medium type, anti-corrosion materials, measuring range, temperature and pressure resistance, special medium interference and actual installation methods to match proper probe styles and guarantee stable measurement.

Capacitive level gauges detect liquid, paste, powder and granular materials by capacitance variation, featuring corrosion resistance, wide temperature and pressure adaptability, explosion-proof options and compact structure. Their main application scenarios are classified by industry as follows.

Capacitive level gauges are indeed capable of measuring highly corrosive media, relying on protective coating materials for anti-corrosion performance.

Safety Operation Reminders
Cut off the power supply before disassembling the probe for cleaning or maintenance.
For storage tanks containing flammable, corrosive or high-temperature media, isolate the process pipeline, empty the tank and fully ventilate before any maintenance work.
Do not disassemble explosion-proof level gauges in hazardous areas without cutting off power.

capacitive level gauges can measure pure water level, but there are special points to note

Capacitive level gauges measure liquid/solid material levels based on the capacitance change between electrodes and media, featuring simple structure, wide adaptability, high temperature/pressure resistance, and strong anti-corrosion performance. Their main application industries are as follows: