HEROLAB PM-200 – Liquid Particle Counter

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Herolab PM-200

Liquid Particle Counter

The PM-200 counts insoluble particles in liquids and classifies them by optical size. A syringe feeds the sample through the measuring cell, and results are evaluated on a PC. The sensor and software are selected to suit your sample and measurement task.

Enquire about the PM-200
Herolab PM-200 – Liquid Particle Counter

Particle counting by light obscuration

A syringe feeds the sample through the measuring cell. Individual particles reduce the intensity of a light beam. The signals are used to determine particle counts and optical size classes; a PC handles control and analysis.

Technical data and configurations

Different sensor and software combinations are available for pharmaceutical testing and contamination monitoring in water, beverages and other process liquids.

Sensor and software configurations
FeaturePharmaceutical testingGeneral liquid analysis
SoftwarePharmaceutical analysisGeneral liquid analysis
Particle size range with latex calibration1–50 µm, linear0.9–139 µm
Maximum particle concentration100,000 particles/mL120,000 particles/mL
Particle size channelsUp to 8 fixed channelsUp to 256 freely selectable channels
Sensor flow rate20 mL/min30 mL/min
Measuring cell dimensions230 × 250 µm300 × 300 µm

The stated ranges apply with latex calibration; the flow rates apply to the respective sensors.

Instrument specifications
Power supply230 V AC
Dimensions (H × W × D)405 × 260 × 260 mm
Weight12 kg

The system combines syringe-based sample delivery, a sensor, measurement electronics, analysis software and a PC. The quotation specifies the supplied configuration, PC provision and accessories.

Software for your measurement task

Pharmaceutical analysis

The pharmaceutical software supports measurement and analysis according to USP requirements and company-specific methods. Measurement series and diluted samples can be evaluated, with results available as tables or reports. The applicable test method and required documentation functions inform the choice of configuration.

General liquid analysis

The software for general liquid analysis provides cumulative or size-class-based analysis by particle count, volume or mass. Data can be exported for further processing in Microsoft Excel.

Sample handling options

  • Magnetic stirrer
  • Automatic sample changer for 20 sample bottles
  • Sampling from bags
  • Liquid feed with a funnel for residual contamination analysis

The appropriate accessories depend on the sample type, sample volume and workflow.

Sample requirements

Colour, turbidity, high viscosity and gas bubbles can affect measurement. Describe these properties and the available sample volume so that the sensor and sample delivery system can be matched to your application.

Product information PDF

A concise overview of technical data, software and sample handling options.

Download product information

English · 2 pages · 268 KB

Advice for your application

Describe your sample and measurement task. Where known, include particle sizes, particle concentration, sample volume, test method and throughput.

Enquire about the PM-200

PM-200 enquiry

Briefly describe your sample medium and measurement task. Where known, include particle sizes, particle concentration, sample volume, test method and throughput. Add any software or accessory requirements.

Your enquiry is non-binding.

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