Giangarlo Scientific

Titrators: HI 901 – HI 902


Automatic Titration Systems

  • Quick & Accurate Analysis
  • A Complete Workstation
  • All Information Displayed on Graphic LCD

HI 901 and HI 902 are the new automatic titrators from HANNA instruments® to enhance the wide range of products dedicated to quick and accurate laboratory analysis. Each is provided with many features for routine titrations. HI 901 and HI 902 perform acid-base, potentiometric and amperometric titrations. The versatile HI 901 and HI 902 offer a total of 100 methods: 89 of these can be customized. When turned on, the instruments run an accurate unit check and they are ready for the first titration of the day. The display shows the chosen method, correlated information, and also shows the controls for possible parameter adjustment, and quick and simple burette maintenance. The titration curve is shown on the large display; this feature is useful when new methods are tested or when a procedure needs to be optimized. At the end of the titration, all data, including the graph, are automatically stored in the memory and can be downloaded through the instrument’s floppy drive. Burette maintenance is very simple and completely automatic: the user can decide to purge it or to wash it and can select how many washings to perform. Thanks to the new Clip Locktm system for burette replacement, changing from one titrant to another will be very easy! Both HI 901 and HI 902 can drive two pumps, but HI 902 is a more advanced system. In fact, while HI 901 can drive the two pumps separately, HI 902 can drive them concurrently and then perform back titrations. Finally, HI 902 can perform more complex titrations, thanks to the possibility to determine more than one equivalent point.

HI 901 and HI 902 are supplied complete with dosing pump, 25 mL burette, aspiration and dosing tubes, sliding positioning collar, temperature sensor, burette assembly key, start-up and PC connection software, RS232 PC connection cable, power supply cable, instruction manual and quality certificate. HI 902 is also supplied with software for back titration and for titrations with several end-points.

Available Accessories:
HI 900100 | Dosing pump
HI 900105 | 5 mL burette
HI 900110 | 10 mL burette
HI 900125 | 25 mL burette
HI 900150 | 50 mL burette
HI 900301 | Propeller stirrer
HI 900310 | Magnetic stirrer
HI 900920 | Temperature probe
HI 900930 | RS232 cable for PC connection
HI 900900 | Windows® compatible software
HI 900270 | Aspiration tube
HI 900280 | Dosing tube
HI 1131B | pH Electrode, BNC, 1 m cable
HI 1083B | pH Electrode, BNC, 1 m cable
HI 1048B | pH Electrode for wine , BNC, 1 m cable
FC 200B | pH Electrode for dairy , BNC, 1 m cable
HI 6004 | pH 4 millesimal cal. Sol., 500 mL bottle
HI 6007 | pH 7 millesimal cal. Sol., 500 mL bottle
HI 6010 | pH 10 millesimal cal. Sol., 500 mL bottle
HI 70300L | Electrode storage solution, 500 mL bottle
  -2000.0 to 2000.0 mV / -2.000 to 20.000 pH / -5.0 to 105.0 °C
  ±0.1 mV / ±0.001 pH / ±0.1 °C
  0.1 mV / 0.1/0.01/0.001 pH / 0.1 °C
Burette Capacity
  5 mL (±5 µl), 10 mL (±10 µl), 25 mL (±25 µl) and 50 mL (±50 µl) with 0.001 mL display resolution
Burette Resolution
Dosing Accuracy
  0.1% of full burette volume
  graphic LCD 120 x 90 mm; 320 x 240 pixel resolution
  English, Italian and Portuguese
  100 (11 standards, 89 user-defined)
Burette Auto-Detection
  burette size is automatically recognized when inserted into the unit
Programmable Stirrer
  propeller type, 100 – 2500 RPM with 100 rpm resolution
Flow Rate
  user-selectable from 0.1 mL/min to 2x vol.burette/min
Temp. Compensation
  pH measurements are automatically temperature compensated
pH Calibration
  manual or automatic, at 1 – 5 points with 4 buffer sets for custom buffers
Potentiometric Titrations
  Acid/Base (pH or mV mode), Redox, Precipitation, Complexometric, non aqueous, ion-selective, argentometric (in mV mode only)
Titration Methods
  fixed mV or pH end-point detection and first equivalency point detection (with the first or second derivatives of the titration curve)
Real Time Data
  mV/volume or pH/volume titration curve, graph of first or second derivatives
Data Storage
  up to 100 complete titrations and pH/mV logging complete reports
Disk Drive
  Built-in 3.5 in. floppy disc drive
  connections for VGA display, PC-keyboard, parallel printer, RS232 interface
Power Supply
  115 Vac or 230 Vac, 50/60 Hz, fuse-protected
Power Draw
  40 VA max.
Operating Environment
  10 to 40°C (50 to 104°F); RH max 95%
  390 x 350 x 380 mm
  approx. 10 kg (22 lb.) with one pump
HI 900 Series Quick Guide.pdf
HI 900 Series Manual.pdf