Product comparisons
Side-by-side comparisons of Pisonics density and concentration meters versus international brands. Facts only, full feature matrix — draw your own conclusions.
Looking for a Rhosonics density meter alternative? Both Pisonics and Rhosonics build non-nuclear ultrasonic slurry density meters on the acoustic-impedance principle. This page compares the two brands on principle, accuracy, lead time, service network, customization and total cost — and links to model-by-model breakdowns.
PS7000 and Rhosonics SDM ECO are both non-nuclear ultrasonic acoustic-impedance density meters. This table compares specs, installation, price, and service network.
Side-by-side specifications for two ultrasonic density meters deployed in slurry applications — covers principle, range, installation, and local service.
This is not a like-for-like comparison and we will not pretend otherwise. On the hardest duties — 300 °C, extreme corrosion, very high pressure — radiometric measurement remains the answer, and an acoustic instrument is not a substitute. What follows is about the large set of ordinary slurry applications where it is not.
Under which conditions can the PS7000 ultrasonic density meter fully replace traditional Cs137 radiometric meters? Side-by-side comparison.
Both instruments replace a gamma density gauge, and both are spool pieces bolted into the line. That is where the similarity ends. The Alia ADM weighs the slurry; the PS7000 listens to it. The two methods fail in completely different ways, which is what should drive the choice.
Red Meters weighs the pipe. Pisonics reads the slurry. The most consequential difference between them is not accuracy — it is that Red Meters must be installed horizontally, and horizontal is the orientation where slurry stratifies.
Ultimo's meter never touches the process; the PS7000's probe does. That single difference sets the trade-off for the whole comparison — Ultimo trades process contact for a dependence on the pipe itself, and the PS7000 does the reverse.
Of every instrument we compare against, Arenal's is the one built on the same physics as ours. Arenal describes its method as ultrasonic spectroscopy combining acoustic impedance, time of flight and temperature. If you are evaluating both, you are choosing between two implementations of the same idea rather than between two principles — so the decision comes down to hazardous-area rating, temperature range, diagnostics and support.
The PS7000 reads acoustic impedance at a wetted probe flush with the pipe bore; a clamp-on ultrasonic density meter transmits through the pipe wall from outside. Three differences decide most projects: lined pipe, entrained air, and whether you are willing to maintain acoustic couplant.
The PS7000 is non-nuclear; the Ecophyspribor IPB-1K uses an Na-22 gamma source. Beyond the measurement itself, the comparison is mostly about what owning a source costs: Na-22 has a half-life of about 2.6 years, so it is replaced on a cycle, and source licensing applies above a per-plant threshold.
PS7400 and the Endress+Hauser Liquiphant FTL51 are both piezo-driven tuning-fork density meters. This table compares them on measurement parameters, wetted materials, hazardous-area approvals, lead time and local service.
PS7400 and the VEGA fork family compared — density accuracy, scale-resistance, customization depth.
PS7300 offers A/B/C mounting styles covering tank-top, in-tank obstacle-bypass, and side-mount. Yokogawa's dual-flange combination achieves similar function. This table compares integration, install flexibility, price, service.
PS7110 and Anton Paar L-Rix are both industrial in-line refractometers. This table compares refractive index accuracy, prism durability, cleaning mechanism, price, service.
PS7600 and Berthold LB565 both use microwave phase-shift / amplitude-attenuation principles. This table compares parameters, applications, price, service.
PS7100 and Mettler Toledo InPro are both optical concentration analyzers. This table compares UV-Vis-NIR spectral coverage, multi-component capability, industry fit.
PS7300 differential pressure and PS7400 tuning fork are both common Pisonics mid-accuracy density meters, but their applications differ substantially. This table provides a selection decision tree.