Parsum IPP 80-P

An intrinsically safe inline particle sizing probe for real-time measurement in pharmaceutical and food applications

Specifically designed for the pharmaceutical and food industries, the Parsum IPP 80-P is an intrinsically safe probe delivering real-time particle size and particle velocity measurements for solid particles in the range from 50µm up to 6mm in size. Its simple, dustproof and waterproof probe design enables direct monitoring of fluidized bed and high shear mixing and granulation processes.

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Features and benefits

The Parsum IPP 80-P is used in food and pharmaceutical applications for endpoint detection in batch granulation process, and for real time monitoring of continuous manufacturing processes. It is applied in unit operations such as grinding, agglomeration, granulation, coating and sieving.

  • Compact, lightweight and easy to install for rapid integration into new and existing processing plants 
  • Characterizes particles in the range from 50 µm to 6mm, travelling at up to 50 m/s 
  • Reproducible measurement at high solids loadings enabling real time fluidized bed monitoring 
  • Real-time measurement and feedback via comprehensive, customizable software
  • Measurements can be carried out without the need for sample extraction 
  • A range of accessories enables measurements to be made for abrasive, sticky and cohesive particles 
  • complies with ATEX requirements for operation within Zones 0 and 20.

How it works

The Parsum probe uses the measurement principle of spatial filter velocimetry. This is a number-based, chord length sizing method that collects data for individual particles to obtain a particle size distribution and velocity distribution.


Particles falling through the Parsum probe measurement zone block the light emitted from a laser light source. The resulting shadow is detected using a linear detector array made up of optical fibers. Particle velocity is calculated by tracking movement of the particle shadow across sequential detector elements. Particle size is determined by measuring the length of time the particle blocks a single optical fiber.

Measuring a large number of particles generates statistically valid results from which various size parameters and volume-based distributions are derived.

The Parsum probe is installed directly into the process line or vessel. Although no sample preparation is required, an internal compressed air supply can be used to disperse agglomerates, to keep the flow channel and optics clear of material and to enable measurement at high solids loadings.

Information is transferred from the measurement zone to the electronic housing of the probe via fiber optic cable, increasing instrument robustness. A direct cable connection of up to 100m in length can then be used between the probe and the computer, enabling operation of the system from a safe area. Results can be reported to a PCL via 4-20mA signals or using OPC or TCP servers to a plant control system.


Particle size

Measurement range 50µm to 6mm
Velocity measurement range 0.01 - 50m/s
Concentration range Up to 30v%*
Materials in contact with the dispersant, additives and sample

316L stainless steel (DIN1.4435, 1.4404)

Sapphire windows

Notes * Sample and particle property dependent

Weight and dimensions

Dimensions 101mm x 85mm x 65mm


Length 282mm
Diameter 25mm

Operating environment

Temperature (operating) Up to 100 °C
Temperature range 10 °C - 60 °C
Pressure Up to 15 bar
Humidity 35% - 80% non-condensing
Enclosure rating IP 65
Explosion Protection ATEX certified for Zone 0/20
Power 100-240 V, 50-60 Hz


Light source 670 nm
Laser safety Class 1


D24 inline sample disperser

Inline disperser for fine particle processes

The D24 disperser dilutes and disperses material drawn from the process, simultaneously directing it towards the measurement zone of the Parsum probe. It ensures robust and accurate sizing for particles with a Dv50 in the range 50 µm to 1.2mm, making it especially useful for direct measurement within fluidized beds.

D12 inline sample disperser

Inline dispersion for coarse particles and high solids loadings.

The D12 sample disperser samples, dilutes and disperses material from a process, simultaneously presenting it for accurate particle size distribution and velocity measurement using the Parsum inline measurement probes. It ensures robust and accurate sizing for coarse particles in processes where solids loadings are high, such as within granulation systems.

At-line measurement station

At-line particle sizing for process applications.

Used in combination with Parsum IPP70-S or IPP70-SE probes, the at-line measurement station enables fast, efficient particle sizing of process samples in the laboratory or on the plant.

4 – 20 mA Interface board (8 channels)

Efficient data transfer from Parsum probe to centralized control system.

Parsum’s optional 4-20 mA interface board streamlines the transfer of particle size data from the probe to a centralized control system, for automation or data display. Eight channels allow interfacing with four probes, each installed as far as 100 m away from the analyzer PC.


Protect your investment and ensure optimized performance at all times with Malvern Panalytical’s service plans.

When you purchase a Malvern Panalytical product we understand that this is just the first stage of a working relationship that will last for the lifetime of the instrument. Depending on your needs, Malvern Panalytical will provide the support for your business.

Help Desk


  • User training events

Software downloads

Malvern Panalytical’s service options- choose the right plan for you:


Malvern Panalytical Platinum Plan

For laboratories where maximizing instrument up-time is critical to its daily performance. Our highest level of response and the 'all inclusive' price plan takes care of those unexpected repair bills should the unfortunate occur.


Malvern Panalytical Gold Plan

Enhance your laboratory productivity by maintaining instrument efficiency. Still receive that priority response, combined with specialist technical and software support, we'll keep your instrument performance on track to deliver.


Malvern Panalytical Bronze Visit

For laboratories looking to optimize instrument performance, regular preventative maintenance is essential.

Platinum Plan Gold Plan Bronze Visit
Annual PM/PV Test
Telephone / Email Support
Priority Response
Emergency Breakdown visits*
Parts Included
Technical & Software Support
IQ/OQ (Pharma)***

*including labour & travel costs ***available at an additional cost

Key applications

This probe has been designed to measure the particle size and size distribution of powders, pellets or granules in pharmaceutical and food processes. It is a valuable PAT tool that can be easily installed in areas where cleanliness, cleanability and hygiene are important requirements. The probe can be used for conventional batch processes or for monitoring continuous production processes and includes enhanced self-diagnostic features. It is ATEX certified for Zone 0/20 operation.
In situ, real-time size and velocity.

In situ, real-time size and velocity.

Designed for the pharmaceutical and food industries. Cable-free, rapid integration. Directly monitor and control your processes for improved QC.

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