Selection guides
How to choose the right industrial density meter — by measurement principle, by industry, by application. Comparisons, decision trees, parameter cheat-sheets.
How to Choose an Industrial Online Density Meter: A 6-Step Method
A six-step method for selecting an industrial online density meter, working by elimination from process constraints rather than by comparing accuracy figures.
Slurry density: ultrasonic vs tuning fork — how to choose?
Clamp-on ultrasonic attenuation against an immersed tuning fork on slurry duty — how they differ on abrasion, scaling, installation and what each does when the process upsets.
FGD Density Meter Selection Guide: Complete Point-by-Point
Point-by-point density meter selection across a wet FGD system — limestone preparation, absorber, gypsum discharge, wastewater, SCR reducer and AFT tower — each with its own conditions.
Acoustic Impedance Explained: Units, Formula & How It Measures Density
What acoustic impedance is, the units it is measured in, and how an ultrasonic density meter turns it into a slurry density reading — including the conditions under which the method stops working.
Ultrasonic Attenuation Coefficient: Definition, Units & Density Sensing
The ultrasonic attenuation coefficient explained — absorption versus scattering, why it depends on frequency and particle size, and how a clamp-on meter uses it to read concentration.
Coriolis Flow & Density Meter Principle Explained
How a Coriolis meter measures density from tube resonant frequency, why it gives mass flow and density from the same sensor, and the two-phase-flow limit that decides most applications.
Optical Concentration Meter Principle: Refractive Index vs Spectroscopic
Refractive index versus spectral absorption — the two optical routes to concentration, what each can and cannot see, and why a coloured or turbid medium decides between them.
How Dredge Production Is Calculated: Mixture Density + Flow to Dry-Solids (t/h)
The arithmetic behind dredge production monitoring: converting slurry density and flow into cubic metres in situ and dry tonnes per hour, with the assumptions that dominate the error budget.
Non-Nuclear Density Meters for Dredgers: Ultrasonic vs Nuclear (Cs-137)
Why dredgers historically used Cs-137 density gauges, what the source actually costs over a vessel's life, and how non-nuclear instruments now cover the same duty.
Mining Slurry Density Meter Selection Guide
Density meter selection across mining circuits — flotation, heavy media, hydrometallurgical leach and tailings — where abrasion resistance, not accuracy, sets the shortlist.
Mining slurry density measurement — technology overview
Where slurry density is measured across a concentrator — grinding, cyclones, flotation, thickening and tailings — what each point controls, and the installation mistakes that recur at each one.
Chemical Strong Acid / Alkali Density Meter Selection Guide
Concentration measurement for acids and alkalis by medium — sulphuric, caustic, hydrochloric, mixed acids, HF and hypochlorite — where materials, not accuracy, decide the selection.
Food & Brewing Density Meter Selection Guide
Concentration measurement across food and beverage production — brewing, spirits, sugar, condiments, juice, dairy and edible oils — where sanitary design is common but the medium decides the principle.
Oil & Gas Custody Transfer Density Meter Selection Guide
Density measurement for oil and gas custody transfer, where traceability, long-term stability and the counterparty's accepted approval scheme matter more than a headline accuracy figure.
PS7000 Acoustic Impedance vs PS7010 Acoustic Attenuation: Ultrasonic Density Meter Comparison
Two ultrasonic density meters, two different physics: acoustic impedance reflection versus acoustic attenuation transmission, and which process conditions decide between them.
PS7400 Tuning Fork vs PS7210 Coriolis: Vibration-Principle Density Meter Comparison
Tuning fork against Coriolis: both are vibration-principle instruments with comparable accuracy class, so the decision turns on temperature, pressure, mass flow, pressure drop and line size.
Industrial Online Density Meter Principles: 7 Technologies Compared
Every industrial online density measurement principle in one table — what each physically measures, where it wins, and the condition that rules it out.
Non-Nuclear Density Meter Technology Landscape: Modern Alternatives to Cs137 / Co60
Replacing a Cs-137 or Co-60 density gauge: what the source really costs, which non-nuclear principle fits which duty, and how to run a changeover without losing the control loop.