• Automatic Potentiometric Titration System

Automatic Potentiometric Titration System

  • pH, mV, ISE and temperature
  • Store up to 100 methods
  • High-Performance

View Quote

Can we help you?

The HI902C is an automatic titrator that complements our wide range of products dedicated to efficient and accurate laboratory analysis.

The HI902C potentiometric titrator can perform acid/base, redox (ORP),complexometric, precipitation, non-aqueous, argentometric, and ion selective titrations, as well as back titrations and titre determinations. This powerful titrator automatically dispenses the titrant, detects the endpoint, and performs all necessary calculations and graphing. In addition to titration, the HI902C also operates as a fully functional pH, mV/ORP, and ion selective electrode (ISE) meter.

Enhanced Security Options

Administrative users can set a PIN code on the device protecting against unauthorized access. Titration method options and results are tamper-proof while a non-administrator operates the titrator, ensuring records remain safe, secure, and traceable.

Dynamic Titrant Dosing

The dynamic dosing feature allows for timely and accurate titration results by relating the titrant volume dosed to the mV response from the titration reaction. This provides for larger doses near the beginning of a titration and smaller, more precise doses near the titration endpoint.

Signal Stability Timing

The signal stability feature monitors when the mV response of the titration reaction stabilizes before providing the next titrant dose. This ensures reliable measurement values throughout the length of a titration.

Equivalence Endpoint Detection

Equivalence endpoint detection is critical in applications where fixed endpoints are not specified in standard methods. This endpoint indicates where the mV response from the titration is greatest with respect to the volume of titrant dosed.

Multiple Equivalence Point Detection

The HI902C can detect multiple equivalence points during one titration as specified and required in certain standard methods and applications.

Method Sequencing

The HI902C offers users the option of linking two methods. This allows for two analyses to be run on the same sample including direct measurements, single endpoint titrations, multiple equivalence point titrations, and back titrations.

Multiple Titration Types

Paired with the right electrode from our sensor line, our potentiometric titrator can perform acid/base, redox (ORP),complexometric, precipitation, non-aqueous, argentometric, and ion selective titrations, as well as back titrations and titre determinations.

Direct Measurement Functionality

The HI902C performs as a high accuracy pH, ORP, and ion selective meter that can link, log, and report direct measurements. Users can easily track and manage data without the hassle of manual record keeping.

Burettes & Dosing System

Exchangeable Burette System

With Hanna’s Clip-Lock™ burette feature, it only takes a few seconds to exchange titrants and reagents preventing cross-contamination and saving time.

Multiple Burette Sizes

The HI902C comes standard with a 25 mL burette but may be equipped with a 5 mL, 10 mL, or 50 mL burette. Each burette is constructed with a ground glass syringe and chemically resistant PTFE plunger.

Precision Dosing Pump

Our unmatched 40,000 step piston driven pump is capable of dosing extremely small and highly accurate volumes of titrant or reagent.

Chemically Resistant Tubing

Aspiration and dispensing tubes are constructed of durable, chemically resistant PTFE and feature a light-blocking polyurethane outer sleeve to protect light sensitive reagents.

Automatic Reagent Addition

A second burette may be programmed to volumetrically dispense reagent prior to titration or direct measurement. This helps achieve consistent and accurate results and prevents operator errors such as incorrect volumes or forgetting reagent addition.

Interface & Display

Interactive Color Display

A large, color LCD screen clearly shows the chosen titration method along with results, units, titration volume, temperature, and mV or pH values.

Detailed Titration Graphs

A real-time titration curve can be displayed during each titration; this feature is useful when new methods are tested or when a procedure requires optimization.

Simple & Quick Navigation

Virtual key selections present on the display allow for simple and quick navigation between screens and menus without getting lost in a nest of information.

Data & Storage

Customizable Analysis Reports

Each analysis report is fully customizable so users can ensure they are storing and filing the appropriate data required for their application.

Flexible GLP Management

All necessary GLP (Good Laboratory Practice) information can be recorded with each sample including: sample identification, company and operator name, date, time, electrode ID codes, and calibration information.

Effortless Data Transfer

Data can easily be transferred to a USB flash drive or PC with the Hanna HI900PC application software. The conveniently located port allows for the transfer of titration methods, titration reports, and software upgrades via USB flash drive.

Connectivity & Functionality

Autosampler Connectivity

The HI902C works seamlessly with our HI921 Autosampler featuring 16 or 18 sample tray options, automatic tray identification, and automatic beaker detection. Up to three peristaltic pumps for reagent addition and removal can be connected and real-time analysis and sequencing progress is visible on the HI902C display as well as indicated by the LED lights of the Autosampler.


HI902C functions as a titrator, pH meter, mV/ORP meter, and ISE meter. Valuable laboratory bench space is saved, and multiple analyses can be performed on one sample.

Multiple Connections

The titrator offers device support for two analog boards, allowing up to two electrodes, two burettes, and two stirrers to be connected to one unit simultaneously.

Multiple Peripherals

Users can print reports directly from the titrator using a parallel port interface. An external monitor and keyboard may be attached for added versatility, as well as an analytical balance for automatic sample mass entry for titrations.

Methods of Analysis

Customizable Methods

The HI902C can store up to 100 user-defined or standard titration and direct measurement methods. Each method may be modified and optimized for performance based on application and user requirements.

Market Specific Methods Packs

Hanna offers titration method packages for various markets including food, beverage, dairy, wine, and more. .

Adaptable Standard Methods

Our technical experts can program and optimize standard methods developed by such affiliations as ISO, ASTM, AOAC, AOCS, EPA, and more directly onto your titrator. 

pH Range-2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH Resolution0.1; 0.01; 0.001 pH
pH Accuracy (@25ºC/77ºF)±0.001 pH
pH Calibrationup to five-point calibration, eight standard buffers and five custom buffers
mV Range-2000.0 to 2000.0 mV
mV Resolution0.1 mV
mV Accuracy (@25ºC/77ºF)±0.1 mV
mV Calibrationsingle-point offset
ISE Range1•10⁻⁶ to 9.99•10¹⁰
ISE Resolution1; 0.1; 0.01
ISE Accuracy±0.5% monovalent; ±1% divalent
ISE Calibrationup to five-point calibration, seven standard solutions and five user-defined standards
Temperature Range-5.0 to 105.0°C; 23.0 to 221.0°F; 268.2 to 378.2K
Temperature Resolution0.1°C; 0.1°F; 0.1K
Temperature Accuracy (@25ºC/77ºF)±0.1°C; ±0.2°F; ±0.1K, excluding probe error
Temperature Compensationmanual (MTC) or automatic (ATC)
Programmable Stirrerpropeller type, 100 to 2500 rpm, resolution 100 rpm
Display5.7” (320 x 240 pixel) backlit color LCD
Burette Sizes5, 10, 25, and 50 mL
Burette Resolution1/40000
Display Resolution0.001 mL
Dosing Accuracy±0.1% of full burette volume
Methodsup to 100 methods (standard and user-defined)
Burette Auto-Detectionburette size is automatically recognized when inserted into the unit
Flow Rateuser-selectable from 0.1 mL/min to 2 x burette volume/min
Endpoint Determinationequivalence point (1st or 2nd derivative) or fixed pH/mV value
Potentiometric Titrationsacid/base (pH or mV-mode),redox, precipitation, complexometric, non-aqueous, ion-selective, argentometric
Measurement Unitsuser-specified expression of concentration units to suit specific calculation requirements
Real-Time & Stored GraphsmV-volume or pH-volume titration curve, 1st derivative curve or 2nd derivative curve; pH mode, mV mode or ISE mode: pH/mV/concentration versus time
USB Host (Side)flash drive compatibility for transfer of methods and reports
Peripherals (Rear)connections for VGA display, PC-keyboard, parallel printer, USB device input, RS232, interface for autosampler
GLP Conformityinstrumentation data storage and printing capabilities
LanguagesEnglish, Portuguese, Spanish
Operating Environment10 to 40°C (50 to 104°F),up to 95% RH
Storage Environment-20 to 70°C (-4 to 158°F),up to 95% RH
Power Supply100-240 VAC; "-01" models, US plug (type A)
Dimensions390 x 350 x 380 mm (15.3 x 13.8 x 14.9 in)
Weightapproximately 9 kg (20 lbs.) (with one pump, stirrer and sensors)