Owning a high-precision particle counter is the first step in quality control, but ensuring it consistently produces accurate, consistent, and traceable data throughout its years of service depends on an indispensable safeguard: professional periodic calibration and maintenance. Like any precision instrument, a particle counter's performance can drift over time. The laser's intensity may slowly degrade, dust can accumulate on optical surfaces, and the sample pump's flow rate can subtly change—all of which directly impact measurement accuracy.
An annual calibration performed in accordance with the international standard ISO 21501-4 is a rigorous scientific process. It is far more than a simple comparison; it involves an "as-found" test of the instrument's initial state, a thorough cleaning of the optical and pneumatic systems, a precise calibration of particle sizing and counting efficiency using standard particles traceable to a National Metrology Institute (like NIST or NIM), and a correction of the sampling flow rate. Upon completion, you receive a detailed calibration certificate, which is the authoritative document needed to prove to auditors and regulatory bodies that your measurement equipment is in a state of control. The global calibration services offered by Suzhou Sujing are designed to help clients protect their equipment investment, mitigate compliance risks and production losses caused by inaccurate data, and serve as the critical link in maximizing the full lifecycle value of their instrument.
