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PARIO Automated Soil Particle Size Analysis

Updated:2023-02-23

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  • Brand: METER
  • Model: PARIO
  • Description: Soil particle size analysis traditionally had only two options—the extremely archaic option or the extremely expensive option. The hydrometer (or pipette) method is a painstaking, manual process that'
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Product Details

PARIO Automated Soil Particle Size Analysis Description:

User's Manual

Complete curves made easy

PARIO uses automation to shrink the time and effort needed for soil particle size analysis. It calculates the particle size distribution by Stokes’ law, with a range spanning from 63 μm to 2 μm, finally making it easy to obtain a complete particle size distribution curve, instead of just a few measurements at discrete time points.

It allows for unattended, automated operation (with the exception of opening the valve after completion). Just set it up and come back later to a finished measurement with all the data you need.

New method reduces error—and effort

PARIO adopts the same sample prep your lab already uses, so it fits perfectly into your existing workflow. It reduces errors by replacing and automating the lengthy “hydrometer” portion of the process using the new, more accurate “Extended Integral Suspension Pressure Method” (ISP+). This method does not require the insertion of a hydrometer or sampling of suspension volume with a pipette, which disturbs the sedimentation process. Being automatic, it also avoids manual reading or calculation errors. This results in an overall error rate of an incredible 0.5%—lower than any conventional particle size analysis method.

How it works

PARIO automatically measures at an interval of ten seconds and continuously records the change of suspension pressure as well as the temperature. This results in highly accurate and continuous particle size distribution curves. The data are automatically evaluated by our new data processing algorithm called the ISP+ method.

Stokes’ law method

The PARIO measuring method is based on Stokes’ law. That means there is no need for soil-specific corrections with transfer functions as required for almost any other automated measurement method, such as laser diffraction or image analysis. The new PARIO soil texture analyzer. Complete particle size distribution curves.

Spend more time on what matters

To save you even more time, PARIO comes with an easy-to-use, all-in-one software solution for automated data inquiry, visualization, evaluation and export. Plus, PARIO, as part of the LABROS system, can be combined with the HYPROP, KSAT, or WP4C to completely characterize the physical and hydraulic properties in soil.

All of this serves one goal—to reduce the operating time you spend for particle size analysis, while at the same time improving accuracy. Skip hours of tedious manual measurements, and focus on your research. Not one particle of wasted time.

Feature:

Get complete particle size distribution curves

Calculation of particle size distribution by Stokes’s law

Autonomous operation after measurement start (with the exception of opening the valve at measurement end)

Lower measurement duration of 2.5h

Estimated error: an incredible +/- 0.5%

Quasi-continuous resolution of particle size distribution

No physical disturbance of suspension during measurement

Avoidance of manual reading errors

Avoidance of manual calculation errors

Temperature dependence automatically integrated in the calculation of particle size distribution

Direct measurement of clay content

PARIO Plus improvements mean external data errors are less problematic

PARIO Automated Soil Particle Size Analysis Specification:

Measurement Specifications Typical Duration of Measurement PARIO Classic: 8 h
PARIO Plus: 3 h
Particle Size Range: 2.0000 – 63.0000 μm
Approximate Error in Mass Fraction Detection PARIO Classic: ±3 %
PARIO Plus: ±1 %
Estimation of Clay Content Derived from integrated particle mass in effluent
Estimation of Sand Fraction Sand fraction estimated by sieve data
Pressure Measurement Accuracy: ±1.0000 Pa
Resolution: ±0.1000 Pa
Measurement Interval 10 s
Typical Particle Mass 25−50 g per 1-L suspension
Communication Specifications Power Requirements USB 5 V/100 mA
Computer Compatibility Microsoft Windows 10
Physical Specifications Cable Type USB 2.0; 500 mA for receiving port
Glass Cylinder Height: 450.0 mm (17.7 in)
Diameter: Inner: 59.0 mm (2.3 in)
Outer: 67.5 mm (2.7 in)
Volume: 1,000 cm³ (61.0 in³)
Material: Borosilicate glass 3.3
PARIO Device Height: 293.0 mm (9.1 in)
Diameter: 80.0 mm (3.2 in)
Material: Polyoxymethylene plastic (POM) and stainless steel
Volume of Suspension 1000 mL
Maximum tolerable temperature change during measurement ±1.50 °C
Required External Measurement PARIO Classic: Content of organic matter (if OC is destroyed)
Sand fractions (from wet sieving)
Mass of dispersion salt in total suspension volume
PARIO Plus: Mass of dry matter in discharged subsample
Sand fractions (from wet sieving)
Mass of dispersion salt in total suspension volume
Operating Temperature Minimum: 15.00 °C
Typical: 20.00 °C
Maximum: 35.00 °C
Other Compliance Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

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