CPA 341 Cleanroom Particle Analyser

Optical Particle Counter CPA 341 for analysis of particle size distributions and particle concentrations in aerosols, best for cleanroom applications

The CPA 341 cleanroom particle analyzer is the successor product to the PZG series from RR Elektronik GmbH. The device is a mobile or stationary single particle scattered light counter for measuring low-concentration aerosols in gaseous samples. The airborne particles are analysed in terms of particle number and size.

The CPA 341 is specially designed for monitoring ventilation systems with high purity requirements and covers the particle size range from 0.3 to 10 µm at a sampling flow rate of 28.3 L/min.

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Standards

ISO 14644-3
EU GMP Annex 1
VDI 2083
DIN 1946-4
ISO 21501-4

Benefits

portable particle counter for stationary and mobile use
powerful and stable air flow rate generation
easily readable, clear structured and intuitive user interface
highly sensitive touch display, can be operated with multi-layer gloves

FAQs

Principle

For testing gaseous samples with particles, the measuring device sucks in a sampling volume flow of 28,3 L/min via an internal side channel blower. The entire sample is fed into the measuring cell and exposed to light from a laser diode. A photodetector detects the light scattered by the particles. The signals are processed and classified into different classes according to the pulse height. A calibration function is used to correlate the pulse height classes to the respective particle size. Based on the number of signals, the number of particles in the examined sample is determined.

Technical data

Parameter Title	Unit	Value
test flow rate	L/min	28,3
measurand(s)	-	particle number, particle size distribution
measuring range, particle size	µm	0,3 ... 10
resolution, measurement time	s	≥ 1 (variable adjustable)
resolution, particle size	-	5 size channels (preset)
power supply	-	100 ... 240 VAC (50/60 Hz)
optical system	-	90° light scattering optics
light source	-	blue Laser diode (450 nm)
alarm level	-	programmable for each cleanroom class
hose connector	mm	8
communication interface	-	Ethernet
dimensions (w × h × d)	mm	255 × 255 × 220
weight	kg	4

Accessories

software CRQWin for clean room qualification (ISO 14644; GMP Annex 1 and VDI 2083)
carry case
aerosol generator ATM 228
aerosol dilution system DIL 544 (stainless steel, battery operation)
isokinetic rectangular sampling probe SYS 529 according to ISO 14644-3 and VDI 2083-3
fog generator CFG 291

CPA 341 Cleanroom Particle Analyser

CPA 341 Cleanroom Particle Analyser

Standards

Benefits

Applications

FAQs

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