Automatic Potentiometric (pH/mV/ISE) Titration System – HI902C

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 dispenses the titrant, detects the endpoint, and performs all necessary calculations and graphing automatically. In addition to titration mode, the HI902C also operates as a fully functional pH, mV/ORP, and ion selective electrode (ISE) meter. This titrator is supplied with a pack of standard methods or you can create your own. Methods (standard or user) can be easily transferred between titrators via USB flash drive.

 

Burettes and dosing system

Exchangeable burette system

• With Hanna’s Clip-LockTM 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 precise volumes of titrant or reagent.

Linear and dynamic dosing

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.

 

Titration capabilities

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.

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.

Method sequencing

• The HI902C offers users the option of linking two methods. This allows for two analyses to be run on the same sample or for back titrations to be performed.

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 several standard methods and applications.

 

Interface and 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. The HI902C also offers multi-language support.

Simple and 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.

 

Methods of analysis

Customizable methods

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

Titration method support

• Onsite installation, training, and customization is available from one of our Applications or Service experts. Hanna offers continued support via phone or webinar for any questions you might have along the way.

Market specific methods packs

• Hanna offers titration method packages for various markets including food, beverage, dairy, wine, and more. Ask our Sales Consultants about which methods in our library are available for your specific needs.

Adaptable standard methods

• Our technical experts can program and customize standard methods developed by such affiliations as ISO, ASTM, AOAC, AOCS, EPA, and more directly onto your titrator. Ask our Sales Consultants which standard methods are possible with our HI902C system.

 

Data and storage

Customizable titration reports

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

View or save titration reports

• Titration or pH/mV/ISE results can be viewed on-screen or transferred to a USB flash drive or PC.

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. Titration graphs can be viewed on-screen or saved as images and transferred along with titration report. 

Effortless data transfer

• The USB port allows for the transfer of titration methods, titration reports, and software upgrades via USB flash drive.

Flexible GLP management

• HI902C can be easily incorporated into any existing GLP data management program. 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.

pH, mV/ORP, and ion selective electrode (ISE) meter features

Up to five-point pH calibration with automatic buffer recognition. Relative mV calibration allows for a mV offset. Selectable ISEs preprogrammed with molecular weight and ion charge.

 

Connectivity and functionality

Multifunctional with four working modes

• The 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 simultaneously connected to one unit.

Multiple peripherals

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

Autosampler connectivity

• The HI902C works seamlessly with our HI921 Autosampler. The HI921 features 16 or 18 sample tray options, automatic tray identification, automatic beaker detection, up to three peristaltic pumps for reagent addition and removal, real-time titration and sequencing progress, and more.

HI921 is for use with the HI902C Automatic Titration System

• Flexible, accurate detection of the titration endpoint with HI902C potentiometric titrator.
• Real-time progress of the sequence and results shown on the HI902 titrator screen.

 

Specifications

pH	Range	-2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
	Resolution	0.1; 0.01; 0.001 pH
	Accuracy (@25°C/77°F)	±0.001 pH
mV	Range	-2000.0 to 2000.0 mV
	Resolution	0.1 mV
	Accuracy (@25°C/77°F)	±0.1 mV
ISE	Range	1•10-6 to 9.99•1010
	Resolution	1; 0.1; 0.01
	Accuracy (@25°C/77°F)	±0.5% monovalent; ±1% divalent
Temperature	Range	-5.0 to 105.0 °C; 23.0 to 221.0 °F; 268.2 to 378.2 K
	Resolution	0.1 °C; 0.1 °F; 0.1 K
	Accuracy (@25°C/77°F)	±0.1 °C; ±0.2 °F; ±0.1 K, excluding probe error
Other Specifications	Burette sizes	5, 10, 25 and 50 mL
	Burette resolution	1/40000
	Display resolution	0.001 mL
	Dosing accuracy	±0.1% of full burette volume
	Display	5.7” (320 x 240 pixel) backlit color LCD
	Languages	English, Portuguese, Spanish
	Methods	Load up to 100 methods (standard and user-defined)
	Burette auto-detection	Burette size is automatically recognized when inserted into the unit
	Programmable stirrer	Overhead propeller type, 100-2500 RPM, resolution 100 rpm
	Flow Rate	User-selectable from 0.1 mL/min to 2 x burette volume/min
	Temperature compensation	Manual (MTC) or automatic (ATC)
	Endpoint determination	Equivalence point (1st or 2nd derivative) or fixed pH/mV value
	pH calibration	Up to five-point calibration, eight standard buffers and five custom buffers
	mV calibration	Single point offset
	ISE calibration	Up to five-point calibration, seven standard solutions and five user-defined standards
	Potentiometric titrations	Acid-base, redox, precipitation, complexometric, non-aqueous, argentometric
	Measurement units	User-specified expression of concentration units to suit specific calculation requirements
	Real time & stored graphs	mV-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
	Data storage	Up to 100 titration and pH/mV/ISE reports
	USB Host (side)	Flash drive compatibility for transfers of methods and reports
	Peripherals (rear)	Connections for VGA display, PC-keyboard, parallel printer, USB device input, RS232, interface for autosampler
	GLP conformity	Instrumentation data storage and printing capabilities
	Operating environment	10 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	100-240 VAC “-01” models, US plug (type A) “-02” models, European plug (type C)
	Dimensions	390 x 350 x 380 mm (15.3 x 13.8 x 14.9 in)
	Weight	Approximately 9 kg (20 lbs.) with one pump, stirrer and sensors
Ordering Information	HI902C1-01 and HI902C1-02: titrator with one analog board, overhead propeller stirrer with stand, 25 mL glass burette, dosing pump drive, temperature sensor, USB cable, 256 Mb USB flash drive and PC software. HI902C2-01 and HI902C2-02: titrator with two analog boards, overhead propeller stirrer with stand, 25 mL glass burette, dosing pump, temperature sensor, USB cable, 256 Mb USB flash drive and PC software.