• pH Titrator

pH Titrator


Potentiometric titrator for accurate pH titrations with easily reportable results.


The Thermo Scientific™ Orion™ T910 pH 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 T910 pH titrator for dedicated acid-base titrations including:

  • Titratable acidity of juices and wines
  • Acidity of food products
  • Alkalinity of waters
  • Acidity and alkalinity of consumer products
  • Total acid number (TAN)
  • Total base number (TBN)


Titration techniques include equivalence point titrations and preset pH 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 T910 pH 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.
  • For a bundled discount, pair the Orion Star T910 pH titrator with any premium ROSS pH electrodes or select a preconfigured titrator and electrode kit.
  • The 8102BNUWP ROSS Ultra pH electrode and 327007MD stainless steel ATC temperature probe are ideal for most standard pH titrations and preset endpoint titrations including temperature.
  • The 8172BNWP ROSS Sure-Flow electrode is designed for challenging samples that can clog standard pH electrodes or that require a fast-flowing sleeve-type junction.
Titration Technique Equivalence point or preset endpoint
Equivalence Points 1 or 2
Preset Endpoints 1, 2 or 3
Titration Types Direct or back titration
Blank Options Fixed value or variable value using titration
Cycles Per Titration Run Up to 5 cycles with option to exclude cycles from average results and RSD calculations
Titrant Determination Standardization titration or manual concentration input
Titration Process Control Routine, quick, careful or user defined
Titration Precision ±0.5 % RSD, dependent on environment and handling conditions
Stirrer Probe Speeds 5 selectable speeds, 250 to 3700 RPM
Sample ID Auto-incremental, manual or off
Titration Setup Wizard Yes, using Start a New Titration workflow
Methods Up to 10 customizable methods with optional password protection
Methods Transfer Import/export via USB flash drive, summary to computer software or compact printer
Data Logs Sample titration, titrant standardization, calibration, direct measure – 100 data sets each
Data Log Export CSV or Report (PDF) file, short or long format
Time and Date Yes, with nonvolatile battery backup
Direct Measure Mode pH with mV and temperature
pH Range / Resolution / Relative Accuracy -2.000 to 20.000 pH /
0.001, 0.01, 0.1 (user selectable) /
±0.002 pH
pH Calibration Mode 1 to 5 point
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 Input Manual or automatic with optional 1 point ATC probe offset calibration
Display Type 5.7” color capacitive touchscreen, 640 x 480 resolution, with lab glove compatibility
Display Backlight Yes, adjustable
Languages Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish
Titrator Setup Wizard Yes
Audible Notifications Titration Cycle Complete, Maximum Titrant Volume, Data Log Full, Calibration Due, Maintenance Reminder
Updateable Firmware Yes, using USB flash drive
Burette Sizes 10 mL, 20 mL (included), 50 mL
Burette Resolution Advanced 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 Accuracy Meets ISO8655-3 requirements
Burette Functions Automatic rinse cycles for flushing and discrete dispense volume with continuous option
Certifications CE, TUV 3-in-1, FCC, EN/EIC61326-1, IEC 61010, IP-51
Dimensions 10” 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)
Weight 12.5 lbs; 5.67 kg
Power Requirements 100 to 240 V, 50/60 Hz
Warranty 1 year