• Redox Titrators

Redox Titrators


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The Thermo Scientific™ Orion Star™ T920 redox titrators are designed to increase your laboratory productivity by automating titrations.

Our core electrochemistry technology is integrated with a state-of-the-art reagent dispensing system to create modern, simplified automated titrators designed to make performing titrations easier, more reliable and more reproducible than manual titrations.


Use the Orion Star T920 redox titrator for dedicated redox titrations including:

  • Sulfite/SO2 in juice and wine
  • Reducing sugar in juice and wine
  • Ascorbic acid (vitamin C) in food products
  • Peroxide value in food products
  • Dissolved oxygen in wastewater by Winkler
  • Organic matter in soil

Titration techniques include equivalence point titrations and preset mV endpoint titrations for versatile sample analysis. The automated titrant delivery system with high-accuracy burette and dispenser provides consistent results. Automatic results calculations simplifies analysis and reduces computational errors.


This compact titrator is designed to:

  • Offer easy-to-use navigation from setup to live titration analysis to data transfer
  • Showcase titrations, onscreen instructions and help menus on a large color graphic touchscreen display
  • Create and save up to ten user-defined methods
  • Save up to 100 titration data sets with date/time stamp
  • Facilitate data transfer to printer, computer or USB drive


Benefits of Orion Star T920 Redox Titrator:

  • Accurate, Reproducible Results: Automating the titration workflow enables analysis to be run using the same setup parameters and calculations every time.
  • Fast Setup Time: Setup and save electrode, titrant and titration parameters once using methods.
  • Prioritize Lab Throughput: Start the titration, and let the instrument run unattended.
  • Minimal Cost and Downtime: Easily replace titrator parts to minimize maintenance downtime while long lasting electrodes may reduce the cost of ownership.
  • Securely Document Test Results: View results live, in the summary table and within the 100-point data log.
  • Applications Database: Tested and validated preprogrammed methods can be easily loaded onto your titrator via USB flash drive.
Titration TechniqueEquivalence point or preset endpoint
Equivalence Points1 or 2
Preset Endpoints1, 2 or 3
Titration TypesDirect or back titration
Blank OptionsFixed value or variable value using titration
Cycles Per Titration RunUp to 5 cycles with option to exclude cycles from average results and RSD calculations
Titrant DeterminationStandardization titration or manual concentration input
Titration Process ControlRoutine, quick, careful or user defined
Titration Precision±0.5 % RSD, dependent on environment and handling conditions
Stirrer Probe Speeds5 selectable speeds, 250 to 3700 RPM
Sample IDAuto-incremental, manual or off
Titration Setup WizardYes, using Start a New Titration workflow
MethodsUp to 10 customizable methods with optional password protection
Methods TransferImport/export via USB flash drive, summary to computer software or compact printer
Data LogsSample titration, titrant standardization, calibration, direct measure – 100 data sets each
Data Log ExportCSV or Report (PDF) file, short or long format
Time and DateYes, with nonvolatile battery backup
Direct Measure ModemV and temperature
Calibration Mode1 point relative mV
mV Range / Resolution / Relative Accuracy-2000.0 to +2000.0 mV /
0.1 mV /
±0.2 mV
Temperature Range / Resolution /
Relative Accuracy
-5.0 to 100.0 ºC; 23.0 to 212 ºF /
0.1 ºC; 0.1 ºF /
±0.2 ºC
Temperature InputManual or automatic with optional 1 point ATC probe offset calibration
Display Type5.7” color capacitive touchscreen, 640 x 480 resolution, with lab glove compatibility
Display BacklightYes, adjustable
LanguagesChinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish
Titrator Setup WizardYes
Audible NotificationsTitration Cycle Complete, Maximum Titrant Volume, Data Log Full, Calibration Due, Maintenance Reminder
Updateable FirmwareYes, using USB flash drive
Burette Sizes10 mL, 20 mL (included),50 mL
Burette ResolutionAdvanced micro-step technology provides 25,600 micro-steps per motor revolution for smooth and precise burette positioning (2 million micro-steps over full burette stroke range)
Burette Dosing AccuracyMeets ISO8655-3 requirements
Burette FunctionsAutomatic rinse cycles for flushing and discrete dispense volume with continuous option
CertificationsCE, TUV 3-in-1, FCC, EN/EIC61326-1, IEC 61010, IP-51
Dimensions10” x 16” x 14” (L x W x H); 25.4 cm x 40.6 cm x 35.6 cm (L x W x H)
Weight12.5 lbs; 5.67 kg
Power Requirements100 to 240 V, 50/60 Hz