Product Specifications

The S6A meter can measure chemicals with bubbles and particles provided the bubbles and particles are not so large, or numerous, as to block the ultra-sonic sound beam. For example, the S6A functions very well measuring sodium hypochlorite. The S6A meter takes many measurements per second, so while small bubbles and particles can reduce the number and quality of the measurements, the meter is still able to take enough measurements for an accurate reading. Installing a strainer/filter directly before the S6A can break up large bubbles and filter out particles.  

The sensor will work with acoustically conductive fluids with particulate and bubbles 50,000 ppm or less. A list of Pre-Configured (factory-tested) chemicals is available in the product datasheet, and includes: 

• Water
• Aqueous Ammonia 10%
• Ammonium Hydroxide 30%
• Ferric Chloride 40%
• Sodium Bisulfite 40%
• Sodium Hypochlorite 12.5%
• Sodium Permanganate 40%
• Hydrofluorosilicic Acid 25%
• Ammonium Sulfate 10%

Additional approved (non factory tested) chemicals are:

• Alum
• Ferric Chloride

Chemicals that can’t be used:

• Sodium Hydroxide
• Sulfuric Acid
• Neat polymers

Different chemicals have different accuracies in an ultrasonic meter because they have different acoustic properties. Acoustic properties are the physical properties of a material that affect the way sound waves propagate through it. Some of the most important acoustic properties for ultrasonic flowmeters are the speed of sound, the attenuation coefficient, and the density. The speed of sound in a fluid is the distance that a sound wave travels in a unit of time. The speed of sound is affected by the temperature and pressure of the fluid, as well as the composition of the fluid. The attenuation coefficient is a measure of how much sound energy is lost as it travels through a fluid. The attenuation coefficient is affected by the composition of the fluid, as well as the frequency of the sound wave. The density of a fluid is the mass per unit volume. The density of a fluid affects the way sound waves propagate through it.

We do not have exact data at this time but Ultrasonic flowmeters are generally very repeatable. The repeatability of an ultrasonic flowmeter is affected by a number of factors that include the type of fluid being measured and the installation conditions.

A component of a metering pump or flowmeter that comes in contact with the fluid being pumped or measured is considered a WETTED FITTING or WET COMPONENT. Examples include O-ring seals, gaskets, inlet and outlet fittings, diaphragms, valve components, etc. 

The term TRUE UNION is used to define a flowmeter with double unions, on the inlet and outlet side of the flowmeter, that allow for servicing of the flowmeter, whether you are cleaning, repairing, or replacing the flowmeter. The main portion or “body” of the flowmeter can be taken out of line for ease of service without disassembling the entire system.

The properties of the materials used in the flowmeter can contribute to pressure changes with temperature. For example, certain materials used for seals, gaskets, or O-rings may experience thermal expansion or exhibit decreased elasticity at higher temperatures. This can result in leaks or reduced sealing effectiveness, leading to pressure loss.

NEMA 4X is a rating for enclosures that indicates they are designed to provide protection against corrosion, windblown dust and rain, splashing water, and hose-directed water.

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