Maintenance and Repair for Vaisala K‑PATENTS® Process Refractometers Our maintenance and repair services are for situations where your Vaisala K‑PATENTS® process refractometer requires inspection, preventive maintenance or more comprehensive repair in order to verify or return the original performance. No matter the need you can count our service experts’ assistance.The service includes:Fault diagnosticsInspectionsReplacement of parts according to inspectionFunctional testingCalibration and verificationService report and verification documentationRefractometers should be returned to the original seller, which is, in general, the local distributor. Return requests can be made by the distributor by filling the Request for Return Materials Authorization (RMA) form. HF form for PR-33-S Order calibration online RMA notification for Online Store orders Key benefits Secure the Life Cycle of Your Investment The service is an affordable option to verify or return the original performance of your device without compromises. No matter the case, we are dedicated to secure the life cycle of your refractometer. Peace of Mind Our service contains always preventive maintenance actions from inspections to needed part replacements and verification. By using the service, you can be sure that the device works as designed. As a guarantee, we offer six (6) month warranty on replaced parts and labor. Quality Service by the Manufacturer Our modern Service facilities and optimized spare part availability enable fast repair turnaround times without surprises. As a manufacturer we use only original parts and procedures to meet highest quality standards. Product documentation Docs.vaisala.com More downloads Order Form: HF specific return instructions for PR-33-S (176.27 KB)