HI933 – Karl Fischer Volumetric Titrator for Moisture Determination

he HI933 is an automatic volumetric Karl Fischer titrator with high accuracy, great flexibility and repeatability.

The titrator is designed to perform titrations for a variety of sample types/matrices, allowing the user to obtain both good results and high-speed analysis. The HI933 analyzes for water content ranging from 100 ppm to 100%. This powerful titrator automatically dispenses the titrant, detects the endpoint, and performs all necessary calculations and graphing.

Κωδικός προϊόντος: ΗΙ933 Κατηγορίες: , Ετικέτα:

Πληροφορίες προϊόντος

HI933 Burette and Dosing System


Precision dosing pump

Our unmatched 40,000 step piston driven pump is capable of delivering as little as 0.125 μL of titrant accurately and precisely.

Anti-diffusion dispensing tip

A specially designed glass dispensing tip delivers titrant precisely into high turbulence mixing zones, ensuring a rapid reaction. Its angular construction helps prevent titrant from diffusing into the sample solvent.

Chemically resistant tubing and syringe

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

Clip Lock™ 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.

HI933 Titration Capabilities

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.

Titration results averaging

Successive results from a titration method may be averaged with a recording of the standard deviation.

Selectable endpoint criteria

The HI933 employs a dual platinum-pin electrode for bivoltammetric endpoint determination. Users may choose termination criteria based on mV stability times or drift rates.

Drift rate compensation

The HI933 automatically adjusts the titration calculation to account for the effects of any ambient humidity entering the titration cell. This provides a more accurate result by correcting for water not present in the actual sample.

Titrant recordkeeping

The HI933’s titrant database can store information for up to 20 titrants. The database may be programmed to remind a user when to standardize their titrant, reducing error in analysis.

Multistage cell preparation

A pre-titration stage eliminates residual water present in the solvent and the cell, providing a reliable baseline start to analysis. Standby mode then keeps the solvent dry between titrations and when the titrator is not in use.



Product NamePotentiometric titrator with single pump and one input analog board, 230 VAC
Stock Status MessageCall if accurate shipping time is required
Quote RequiredNo
mV Range-2000.0 to 2000.0 mV
mV Resolution0.1 mV
mV Accuracy±0.1 mV
mV Calibrationsingle point offset
pH Range-2.000 to 20.000 pH; -2.00 to 20.00 pH; -2.0 to 20.0 pH
pH Resolution0.001 pH; 0.01 pH; 0.1 pH
pH Accuracy±0.001 pH
pH Calibrationup to five-point calibration, eight standard buffers and five custom buffers
pH Temperature Compensationautomatic from -5.0 to 105.0°C; 23.0 to 221.0°F
ISE Range1 x 10⁻⁶ to 9.99 x 10¹⁰ concentration
ISE Resolution1; 0.1; 0.01 concentration
ISE Accuracy±0.5% (monovalent ions); ±1% (divalent ions)
ISE Calibrationautomatic, up to five point calibration, seven fixed standard solutions available (0.01, 0.1, 1, 10, 100, 1000, 10000 choice of concentration) and five custom solutions
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±0.1°C; ±0.2°F; ±0.1K, excluding probe error
Potentiometric Titrationsacid/base (pH or mV-mode), redox, precipitation, complexometric, non-aqueous, ion-selective, argentometric
Analog Boards Capabilityone analog board for pH/ORP/ISE; not upgradeable
Measurement Unitsuser-specified expression of concentration units to suit specific calculation requirements
Endpoint Criteriasingle equivalence point (1st or 2nd derivative) or fixed pH/mV value
Dosing Pump Capabilityone included can be upgraded for two
Flow Rateuser-selectable from 0.1 mL/min to 2 x burette volume/min
Dosing Accuracy±0.1% of full burette volume
Buretteone 25 mL burette included
Burette Size Capability5, 10, 25, and 50 mL (auto-detection)
Dosing Pump Resolution1/40000
Stirrer Typeoverhead propeller type, 200 to 2500 rpm, resolution 100 rpm
Titrator Methodsup to 100 methods (standard and user-defined)
Linked Methodsnot available
Back Titrationsnot available
Real Time & Stored GraphsmV-volume or pH-volume titration curve, 1st derivative curve or 2nd derivative curve; pH mode, mV mode or ISE mode
GLP Conformityinstrumentation data storage and printing capabilities
Autosampler Compatiblenot available
Logging Memoryup to 100 titration and pH/mV/ISE reports
Display5.7” (320 x 240 pixel) backlit color LCD
Power Supply100-240 VAC; "-01" models, US plug (type A); "-02" models, European plug (type C)
Dimensions315 x 205 x 375 mm (12.4 x 8.1 x 14.8 ")
Weightapprox. 4.3 kg (9.5 lbs.) with 1 pump, stirrer and sensors
Ordering InformationEach HI931 potentiometric titrator is supplied with titrator, pump assembly, burette assembly, electrodes holder and stirrer, burette blank support, pump and burette locking screws with plastic head, temperature probe, shorting cap, power adapter, USB cable, instruction manual, USB Memory Stick, HI900 PC application (installation kit on USB stick), and quality certificate.