On-Line Viscometer

Short Description:

The LONN-ND online viscosity meter is designed for accurate real-time viscosity measurement in demanding environments, solving existing problems of inline viscosity monitoring in petrochemical, chemical, food, metallurgy, pharmaceutical and papermaking industries like low precision, sensitive to interference, and short life span. The plug-and-play online viscometer maintains optimal performance for no-moving-parts mechanical structure.

Parameters

Viscosity Range: 1 - 1,000,000 cP

Accuracy: ±2% ~ 5%

Repeatability: ±1% ~ 2%

Temperature Accuracy: 1.0%

Sensor Pressure Range: < 4.0 MPa

Environmental Grade: IP68

Power Supply: 24 VDC

Power: 24W

Water Proof: IP65

Communication Interface: RS485

Output: Viscosity 4 - 20 mADC

Material: 316 L, Teflon, Hastelloy

Connections: Flange & Thread

Flange Standard: HG20592

Explosion-proof Standard: Ex dIIBT6

Temperature Resistance Range: < 350℃

Signal Response Time: 5s

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Product Detail

Product Tags

Working Principle

The vibrating viscometer online consists of a sensor probe and a transmitter, designed for installation in reactors, reaction tanks, or pipelines to measure liquid viscosity in real time. It employs a solid rod-shaped sensing element that vibrates sinusoidally at a specific frequency, oscillating torsionally along its axis. The sensor features a single exposed element, enabling free fluid flow across its surface. As the element shears through the fluid, it experiences energy loss due to viscous drag forces, which vary with the fluid's viscosity resistance. This energy dissipation is detected by electronic circuitry and processed by the transmitter to generate a readable viscosity value.

Optional Material of Wetted Parts

316 L, Teflon, Hastelloy

Repeatability

±1% ~ 2%

Wide Viscosity Range

1 - 1,000,000 cP

Product Features

• High accuracy ±2% ~ 5% and repeatability ±1% ~ 2%;

• Deliver real time viscosity and temperature readings;

• Sensing probe fully submersed in pipe bore or tank;

• Applicable to in process viscosity measurement of all the fluids;

• Low opex for low-maintenance requirements, no moving parts;

• Continuous in-line measurement without delays and sampling errors;

• Robust heavy-duty design ensures long trouble-free service in demanding conditions;

Benefits of Inline Viscometer

• Easy Installation: Plug-and-play;

• Durable design without moving parts, seals, or bearings;

• Long-term reliable performance;

• Fast response and accurate viscosity monitoring;

• Real-time viscosity monitoring and control in the process stream;

• Reduce cost on repetitive manual sampling and lab analysis;

• Minimize waste from defects or over-processing;

• Ensure uniform viscosity and reduce variability and defects;

• Enable data-driven insights for predictive maintenance and recipe adjustments;

OEM & ODM Service

• Viscosity range customization;

• Material Customization of wetted parts;

• Probe length customization

Contact our engineers right now if you need exclusive OEM and ODM service.

Parameter Selection Table

LONN-ND	Specification Code						Inline Viscosity Meter
Probe Length (Optional)	L						Standard 220 mm
	H						Extended 250-500 mm
	F						Ultra-Extended for Reactor 550-1000 mm
Material		S					316
		S1					Teflon
		S2					Hastelloy
Temperature			P				0-120℃
Temperature			G				130-350℃
Viscosity Measurement Range (Optional)				A			1-50cp
				B			1-100cp
				C			10-1000 cp
				D			10-10000 cp
				E			100-100000cp
				F			1000-1000000cp
Output Signal					B		4～20mADC + RS485
Connection Method						F	Flange Connection
						L	Threaded Connection
						N	No Connection
Explosion-Proof Rating							D	EXd II BT6
Explosion-Proof Rating								/B Protective Cover
LONN-ND	L	S	P	A	B	F	D	/B

About Lonnmeter

Lonnmeter Group
Lonnmeter is an professional technology company specialized in intelligent inline instruments over 15 years, having grown into a leading manufacturer of precise inline measuring instruments.
Core Positioning & Product Series
Lonnmeter focuses on the monitoring of key parameters in industrial processes and supply inline instruments likedensitometers, flowmeters, level meters (or level transmitters), viscometers and pressure transmitters to optimize industrial operation. These products enable real-time and accurate measurement of parameters such as flow rate, density, concentration, viscosity and pressure, and are widely suitable for the production process needs of multiple industries including food, chemical, cosmetics, energy, petrochemical, mining and metallury.

Vision of Lonnmeter
In 3-5 years, Lonnmeter aspires to become the leader of China's new-generation wireless intelligent instruments!
In 5-10 years, Lonnmeter aspires to become China's leader in intelligent instruments and replace imported instruments with its own products!
In 10-20 years, Lonnmeter aims to make its products available to more people around the world and become a global leader in new-generation intelligent instruments!
Become the global leader of new-generation intelligent instruments.

15 + Years of Experience

Over 15 years of experience in inline instruments manufacturing.

6600 ㎡ Production Area

Over 6000 ㎡ factory and warehouse

400 + Staff

Over 400 experienced staff work for Lonnmeter like R&D, sales, marketing team, etc.

1000 -1500 Units / Month

Monthly production of inline instruments is over 1000 per month. All products undergo strict quality inspection.

Lonnmeter -- Manufacturer of Inline Instruments for Process Control
Lonnmeter (hereinafter referred to as "the Group") has grown into a competitive manufacturer of inline instruments over the past 15 years. All inline instruments undergone strict quality inspection and calibration before shipment to customers.
With joint efforts of R&D department and sales team, all inline instruments for process control escalade continuously and stand up to special and complex industrial conditions, solving numerous tricky problems and improving process efficiency while reducing costs.

Company Advantages
As a leading intelligent industrial instrument manufacturer, Lonnmeter delivers targeted, value-driven solutions for industrial process control with the following core strengths:

Complimentary Operating Condition Analysis
Our engineer team provides free professional analysis of medium properties, pressure/temperature ranges, bubble content and the like, offering data-backed recommendations to optimize parameter settings and avoid equipment selection risks.

Customized Process Control Solutions
Our portfolio is offered based on provided operating conditions and avoid all negative factors caused inaccurate measurements like flow rate, particle size and bubble content of measured media. Keep all inline instruments working in optimal status.

Flexible OEM&ODM Services We provide tailored OEM and ODM services dedicated to inline industrial instruments. Our OEM services cover customizable packaging, operation manuals and brand logos, while ODM solutions support flexible customization of core materials, measurement parameters, product structures and functional configurations, fully meeting all your special application needs.