How to Measure the Radiation Intensity of UV Disinfection Lamps?

UV disinfection lamp radiation intensity measurement includes online real‑time monitoring and laboratory/field offline testing, which are critical for judging lamp life, disinfection effect and replacement time.

Online UV Intensity Monitor (Most Common)

Installed inside the UV disinfection chamber to monitor UV‑C intensity in real time.

An alarm activates when intensity falls below the threshold (usually 70% of initial intensity), indicating lamp replacement.

Portable UV Radiometer / UV Intensity Meter

Uses a professional UV‑C sensor (254 nm or multi‑wavelength).

Measures lamp intensity at close range while the system is off, to evaluate attenuation.

Biological Dosage Verification

Uses standard microorganisms (e.g., E. coli) to indirectly verify if UV dose meets requirements, mainly for project acceptance.

UV Spectrophotometer Method

Measures UV transmittance (UVT) and radiation energy in the laboratory for accurate analysis.