Optical Density Meter-Liquid Densitometer

Features of Optical Density Meter

• Fully integrated “plug and play, maintenance-free” digital measurement for monitoring and control;
• Provide materials including 316L, PTFE, etc.;
• continuous measurement;
• No moving parts, less maintenance;
• Concentration 4-20mA output;
• Provide temperature sensor;
• Suitable for a variety of acids, alkalis, organic solutions;
• Not easily affected by temperature and flow rate;
• Suitable for installation in tanks and pipelines;
• A small amount of solids and air bubbles are allowed;
• Passed explosion-proof certification;

Technical Parameters

Accuracy	±0.5%
The scope of work	0~100% (20°C), according to the usage, it can be calibrated to a certain range
repeatability	±0.2%
Process temperature effect (corrected)	±0.001% (per ℃)
Process pressure effect (corrected)	can be ignored
Process temperature	–10℃～+60℃
Ambient temperature	–10℃～+45℃
Temperature Coefficient	O.1%/m3/℃ (after correction)
Built-in temperature sensor	temperature chip
Wetted parts	316L, polytetrafluoroethylene
Glass	Acid and alkali resistance
Shell	IP65, aluminum alloy
Working pressure	0.8MPa
Test pressure	Tested at 1.5 times the maximum working pressure
Actual maximum working pressure is limited by process connection rating
Process connection type	flange
	Clamp
Explosion-proof certification	Ex d ⅡC T6 Gb
Power requirements	24VDC,50mA
Output	Four-wire system, 4-20mA
Viscosity range	＜5000MPa.s

Fluid and Material Compatibility

Type	Name	Molecular formula	Concentration (%)	316L	Hastelloy	Titanium alloy	zirconium	PTFE
Acid	Hydrochloric acid (without hydrofluoric acid)	HCI	0-40	×	○	×	☆	☆
	sulfuric acid	H2SO4	0-50	○	☆	○	☆	☆
		H2SO4	50-75	×	○	×	○	☆
		H2SO4	75-98	○	☆	○	○	☆
	nitric acid	HNO3	0-100	○	○	○	○	☆
	phosphoric acid	H3PO4	0-98	×	×	×	×	☆
Alkali	sodium hydroxide	NaOH	0-50	☆	☆	☆	○	☆
	Potassium hydroxide	KOH	0-50	☆	☆	☆	○	☆
	Calcium hydroxide	Ca（OH）2	0-50	☆	☆	☆	○	☆
Salt	Sodium chloride	NaCl	0-50	×	☆	☆	☆	☆
	ammonium chloride	NH4Cl	0-50	×	☆	☆	☆	☆
	ammonium sulfate	(NH4)2SO4	0-50	×	☆	☆	☆	☆
Others	carbamide	(NH2)2CO	0-100	☆	☆	○	☆	☆
	sodium hypochlorite	NaOCI	0-16	×	○	×	☆	☆
	hydrogen peroxide	H2O2	0-90	☆	☆	○	☆	☆
☆Recommended ○ Use under specific concentration and temperature limits × Do not use

Working principle of Optical Density Meter

Imagine you have a flashlight. When you shine it through a clear glass of water, almost all the light passes through. But if you shine it through a dark-colored drink, less light will pass through because the drink is denser.

An Optical Density Meter works a bit like that flashlight. It uses light to see how “thick” or “dense” a sample is. Here’s how:

Light Source: The meter has a light that shines through the sample.
Sample: This is what you want to test, like a liquid.
Detector: On the other side of the sample, there’s a part that catches and measures the light that comes through.
If a lot of light passes through, the sample is less dense. If only a little light passes through, the sample is more dense.

The Optical Densitometer is Based on the Propagation Law of the Spectrum in the Liquid. Sampling is Performed by High-Resolution Sensor. Analyzed AN d processed by software. Obtain the Regularity of the Concentration. The then Through Temperature Compensation. various liquids or liquid mixtures.

Medium limit		bubbles, flow rate	Maximum Liquid Viscosity
Particles	transparent
Trace particles	clear, pure liquid	a small amount of bubbles	5000MPa.s
		Velocity > 1.5m/s

Video: https://www.youtube.com/embed/N8DOxmFBrhE

Optical Density Meter Industrial Applications

Imagine factories where they mix and create things like paint, drinks, or even medicine. They need to make sure everything is just right – not too thick, not too thin, and with the right amount of ingredients. That’s where the Optical Density Meter comes in handy.

• In the petrochemical industry, it can be widely used in the detection of petroleum, oil refining and oil blending;
• In the food industry, it is used in the production sites of grape juice, tomato juice, fructose syrup, vegetable oil and soft drink processing;
• dairy industry;
• paper industry;
• Measurement of alkaline solution;
• brewing alcohol;
• Printing and dyeing industry: measure ammonia concentration.
• Organic and Inorganic Chemical Materials: Sodium Hydroxide.
• Measurement of chemical carbamide, detergent, ethylene glycol, acid-base and polymer density.
• It can also be used in mining brine, potash, biopharmaceutical and other industries.
• Brewing and Beverages: Companies that produce beverages such as fruit juice or beer use this tool to check sugar content. More sugar means the drink may be sweeter and thicker.
• Pharmaceutical Manufacturing: When companies manufacture pharmaceuticals, they need to ensure that the mixture is perfect. A gauge can help check this.
• Paint making: Have you ever noticed that some paints are thick and some are thin? The factory uses a densitometer to get just the right consistency.
• Water Treatment: This meter can help check how clean the water is. If the water is too “thick” and contains unwanted material, more cleaning may be required.
• Agriculture: Farmers use it to check the health of plants. If plants are not healthy, they may not be able to absorb enough light. Meters can provide relevant clues.

These are just a few examples. There are many places where knowing how “thick” or “dense” something is can be very useful, and that’s why the Optical Density Meter is an important tool in industries.

Typical applications:

Denitrification industry	— Measure ammonia concentration (0~30%)
Wine industry	— Quality control — Continuous online inspection
Organic and Inorganic Chemical Materials	— Acid/base concentration control
Pharmaceutical Industry	— Traditional Chinese medicine concentration, alcohol recovery
Battery industry	— concentration of lithium hydroxide, electrolyte, sulfuric acid solution
Mineral processing	Clay, carbonate, silicate

More Density meter and measurement analysis solution

When it comes to measuring the “thickness” or “Density” of liquids, the Optical Density Meter-Liquid Densitometer is a top choice.

Optical Density Meter-Liquid Densitometer uses the law of spectrum propagation in liquid to measure the density of transparent liquid. The liquid must have a certain degree of transparency, which is suitable for pipeline installation or installation on the wall of the container.

Our Sino-Inst Optical Density Meter is widely applicable to the concentration of various liquids or liquid mixtures.

At Sino-Inst, we aren’t just Optical Density Meter supplier – we’re experienced manufacturer. We understand the ins and outs of Optical Density Meter because we’ve crafted it with care. Need something special? We support customizations to meet your specific needs. Trust in our experience and expertise. Ready to elevate your measurements? Choose Sino-Inst today!

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