A Safe Alternative to X-Ray Density Sensors


Sludge and Slurry Density Meter

Produced by OmniGraffle 7.12 Canvas 18Layer 1


Non-radioactive technology
Produced by OmniGraffle 7.12 Canvas 17Layer 10.5%


0.3%FS for low density slurries or homogenous liquids
0.5%FS for dense slurries


Stainless Steel Sensor and Body.
External density controller and indicator. No moving parts.

Accurate Non-radioactive Technogy

Sludge and slurry density meters is a unique field of density measurements in which many conventional methods fail. Due to the multi-phase structure and highly abrasive properties of sludge and slurry the dominant approach to measure density is using x-ray density meters. While x-ray methods have some utility, they are not safe to operate. Recently there has been a trend to find alternatives to radiation sensors. DENCELL MUD-4 Sludge and Slurry Density Meter is the replacement to x-ray with the following key benefits of the technology:

Rugged Design and Reliability

DENCELL MUD-4 is the 4th generation of the sludge and slurry density sensor created by our company. In this iteration of the product we incorporated the field knowledge that we received over 20 years of research and application of the the method. Our goal was to create a durable product to withstand the harsh external conditions of the plant environment as well as the highly abrasive properties of sludge and slurry. We carefully selected the materials, learned from the use cases and designed a product that can last years. DENCELL MUD-4 has the following key design features that increase durability and reliability:

Ease of Integration and Calibration

DENCELL MUD-4 Sludge and Slurry Density Sensor is separated into a Density Sensor and an External Density Controller and indicator, which improves the reliability and usability of the product. External Density Controller is equipped with an LCD display with a touch screen, which makes the user interface very intuitive. With DENCELL MUD-4 we followed the user and identified that the most common way to calibrate sludge and slurry density sensors is not in a lab, but on site. Hence, key feature of this densitometer is a direct on-site calibration. Finally, we equipped our density meter with the most common interfaces for real-time data transmission. In summary, these are the key features of the external density controller and indicator:

Applications Across Industries

DENCELL MUD-4 Sludge and Slurry Density Sensor is used across a variety of industries for industrial automation. Some details about installation of the densitometer are available below. More details are available in the More About Installations section.

Processing Plant

DENCELL MUD-4 is a Slurry Density Meter for industrial automation of processing equipment, such as ball mills, hydrocyclones, slurry splitters, classifiers, and floatation equipment. It can be connected to pipelines and open chutes irrespective of their fill level.

Example installation of DENCELL DMA-4

DENCELL MUD-4 is installed on pipelines, open chutes or equipment via a by-pass using a variety of connection techniques and rubber-lined connectors that increase reliability and durability of the complete measurement system. 

DENCELL DMA-4 with open discharge

DENCELL MUD-4 has an open discharge, which allows for easier access and control of the flow of fluid through the density meter. It is specifically suited for installations with discharge into open tanks, but is certainly not limited to that. We provide a number of solutions to connect DENCELL MUD-4 to your equipment.

Looking for a non x-ray density sensor for sludge or slurry? We can help!