Quartz measuring heads have the best possible optical path length tolerance and are ideally suited for use in the UV range. Sapphire has a very high chemical stability and is very resistant to aggressive media.

Hellma Analytics uses an innovative packaging system - read more in our videos on our Hellma YouTube channel:

'Unpacking a Hellma Analytics Immersion Probe'

'Unpacking a Hellma Analytics Immersion Probe with fixed fiber'

Hellma Analytics optical immersion probes come by default with F-SMA connectors and are compatible with all common NIR or UV / Vis spectrometers. Hellma Analytics does offer various other connectors for example FC / PC, DIN etc.

The wetted area is autoclavable for all Kalrez sealed probes. It is also possible to produce an autoclavable optical immersion probe as a whole. For this purpose, the optical fiber connections (SMA) must be sealed, Hellma Analytics provides appropriate solutions- just contact us!

The pathlength tips have an O-ring that works as a stopper - similar to a stop nut. This prevents the lightpath retainer insert from coming loose by itself and the probe part contaminating the process.

Hellma Analytics performs a pressure and burst test with every optical immersion probe. Additionally, a helium leak test is performed on the O-ring sealed probes to ensure that the mounting was successful.

Hellma Analytics is happy to provide you with demo probes for testing purposes - please contact us!

Depending on the ambient and process conditions, optical immersion probes are subject to a certain amount of wear and potential failure of the probe. If this is the case, you can send the probe to Hellma Analytics for service / repair.