Coulometric Karl Fischer titrator, T931

Coulometric Karl Fischer titrator for accurate determination of the water content of solids and liquids, with reliable results and a wide measuring range (0.001–100%). The 10-inch TFT touchscreen makes it easy to operate, and multiple safety features keep the operator out of contact with toxic reagents. Used in the petroleum, chemical, food, cosmetics and pharmaceutical industries and in other fields.

• 10-inch TFT touchscreen with Android: user-friendly interface; parameters are set and changed with a tap, and data is browsed by swiping left and right, for more efficient work
• Modular menu for quick, accurate access to every sub-screen and smooth navigation
• During a test the instrument shows the titration curve, parameters and results in real time, so the whole titration can be monitored as it runs
• Multiple result units: mg%, ppm, H₂O, mL, mg/mL, mg/g, etc.; data retrieval function for quick access to historical records
• V-T and E-T curves can be switched at any time during analysis and zoomed in or out manually; 8 GB of storage for methods, data, traceability documents and more
• Sealed, secure reagent management: the reagent is changed automatically without opening the titration cell, keeping atmospheric moisture out; after a reagent change the equilibration time is short, and operator contact with the toxic reagent is reduced
• Injection ports in several sizes for different sample introduction methods
• Waste overflow protection prevents the waste bottle from overflowing when full
• Magnetic stirrer included as standard, with manual and automatic stirring, for more efficient titration
• Plug-in anti-fall reagent bottle rack, freely configurable, for 250 mL, 500 mL and 1000 mL reagent bottles
• Built-in methods with one-touch start: preset methods such as titre, blank value and water content determination start with a single touch, without starting the water content measurement manually
• The instrument detects when a sample has been added and starts the measurement automatically; analysis parameters can also be customised to suit specific samples
• Multiple electrolysis currents: the electrolysis current switches automatically according to the water content of the sample
• Four end-point criteria — relative drift stop, absolute drift stop, delayed end point and maximum time stop — for precise, reliable testing even of complex or difficult samples
• Complies with FDA 21 CFR Part 11
• Audit trail: every operation carried out on the instrument is logged in the background
• Four-level permission management; the permissions of each level can be customised
• Electronic signature and tamper-proof data output for secure, verifiable data integrity
• Password security: passwords can be given an expiry date after which a change is enforced before the instrument can be used again; password complexity and ageing period are configurable
• Screen saver: the screen locks after a set time, while the instrument keeps working in the background
• Wi-Fi, USB, RS232 and BNC interfaces, among others: remote printing on a Wi-Fi printer or printing via RS232, and operation with a mouse and keyboard