More security to ensure reliable and efficient process control

Regular maintenance minimizes the risk of sudden product failure, which could result in high process costs and time loss. With a maintenance contract, you are taking active precautions while saving time and money.

Your benefits:

  • Increased process reliability and plant efficiency
  • Significantly reduced process risk
  • Prevention of downtimes and associated process costs
  • Compliance with legal requirements and standards
  • Longer product lifetime
  • Warranty on all work performed
  • Extended warranty

Simple, efficient and reliable

We guarantee certified safety in only 6 steps

  1. Consultation
  2. Check process conditions
  3. Scheduling
  4. Submission of the product
  5. Maintenance
  6. Return

Our maintenance packages

Compare our maintenance packages Express and Basic and decide which one would be the best for you. If you need further information you will find these in our brochure.


3 days processing time

The ultra-fast maintenance solution

This package brings you the fastest turn-around time with a personal reminder when your next maintenance is due. Our product specialists will validate the work carried out at the annual maintenance on the scheduled date. Choose our Express package if you want to bring your probe back into operation as quickly as possible.


7 days processing time

Fast scheduled maintenance

This package includes annual inspections that minimize the risk of your production plant failing on account of defects or faults in the online process control, all for a very reasonable price. Choose Basic if time is not the most important factor.

Maintenance packages in comparison

  Express Basic
Processing time (plus shipping time) 3 days 7 days
Minimum term 3 years 2 years
Due date reminder service yes -
Receiving inspection including documentation yes yes
Dismantlement and examination of complete immersion probe yes yes
Exchange of elastomer seals of optical parts* yes yes
Cleaning yes yes
Installation yes yes
Leakage test by means of a helium leak test with certificate yes yes
Pressure test yes yes
Test mesasurement with spectrum yes yes
Maintenance protocol yes yes
1 year warranty for all work performed and wearing parts exchanged yes yes
*except Falcata path length tips

Products of the brand:


Hellma GmbH & Co. KG
Klosterrunsstraße 5
79379 Müllheim 

Phone +49 7631 1820