Particle Counters & Particle Analysis Systems

Match the instrument's smallest detectable particle size and sample flow rate to your standard or method. Cleanroom classification specifies particular sizes and sample volumes that the counter must meet. Confirm these figures with the seller against your requirement. Choosing the wrong range leaves the instrument unable to support your monitoring.

Calibration is central to particle counting, so ask when the instrument was last calibrated and by whom. Regulated monitoring usually requires periodic recalibration to a recognised standard. Factor a fresh calibration into your commissioning plan if records are older. Confirmed calibration status tells you how ready the instrument is for use.

The optical sensor is the heart of a particle counter and its condition affects accuracy. Ask about run history, any pump or flow issues and whether the sensor has been serviced. For liquid counters, confirm the flow cell is clean and undamaged. Sensor health matters more than external appearance.

Confirm the counter reports the particle sizes and volumes your classification standard specifies. Ask whether the software generates the reports your programme needs. Some instruments include sample locations and recipe management useful for routine monitoring. Matching capability to your standard keeps compliance straightforward.

Sellers are identified on the marketplace, so you can request model details, photographs and calibration records directly. Ask whether the instrument was removed in working order and why it was decommissioned. Dealing with the owner means your technical questions reach the right person. That openness supports a sound purchase.