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/ / / Technology
A different way to measure slurry density
Most density technologies derive a result from the way energy, motion or force interacts with process material. The Red Meter uses the deflection of a full-bore sensing tube to determine slurry density without a radioactive source.
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From the line to a decision
The answer is one inline device that reads your line continuously, so you see problems while the run is still going.
- 01Measure
Density, temperature, pressure and vibration, taken together, with percent solids from the meter alone. Connect your 4-20 mA flow meter signal for mass flow and totalized solids.
- 02Detect
Oscillation, air in the pipe, bed load and other anomalies. Vibration is its own reading.
- 03Show
See the reading live in Red Meter software, updated every second. Configuration and calibration menus are PIN secured.
- 04Use
Set today's run against your best run and see where it drifted.
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How the meter sits in the line

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Density from the full bore
Slurry fills a fixed volume in the line and a Class 1 laser reads the deflection. After pressure and temperature corrections, you get density in real time.
It installs between standard flanges with no bypass line and no probe in the flow. It is rated for 0 psi and above.
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Measurement principle.
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See the proof and the specs
- The Red MeterFull specifications and install details.
- Download specificationsThe figures are on the product page.
- Ruby CloudThe same readings, live on screen.
- CompareOther density measurements, by principle.
- Read the study15 paired lab samples compared with the plant lab, Pinto Valley regrind.
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Bring us your line
Tell us the pipe size and slurry. We will confirm whether the Red Meter fits.
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Book a Demo