MANUFACTURER
The HI931 Automatic Titrator is the answer to all your specialized titration needs. Fully customizable, the HI931 delivers accurate results and an intuitive user experience, all packaged in a compact device. The instrument can perform a variety of titrations including acids, bases, redox and selected ions. The only things you need to start using the HI931 potentiometric titrator are the sensor, titrants, and chemicals (if needed).
– Perform many acid-base, redox, complex, precipitate, and anhydrous reactions
– Back titration and determination of reagent concentration.
– No additional programming upgrades required.
– USB.
– Support for technical consulting and product lifetime methods.
– Unprecedented 40,000-step dosing pump for small volumes of titrant
– Achieve very precise endpoints for greater consistency.
– Store up to 100 methods.
| Old model | New generation model |
|
HI901C1 |
HI931 (potentiometric titration, 1 analog board) |
|
HI902CX |
HI932 (potentiometric titration, 1 or 2 analog boards, can be connected to HI921) |
|
HI903 |
HI933 (KF volumetric titration) |
|
HI904 |
HI934 (KF coulometric titration) |
COMPACT DESIGN
COMPACT, MODERN DESIGN
More compact than the old design 50%.
MOST OF THE MACHINE'S PLASTIC IS MADE FROM CYCOLOY
Harder, more durable, more chemically resistant and less likely to stain than ABS.
THE PUMP REMAIN THE SAME 40,000 STEPS FROM THE HI90X, BUT WITH AN ADDED JOINT
Combined with a tighter burret, the motor is improved for quieter operation
ELECTRODE HOLDER AND STIRRING ARMS
The removable paddle has built-in speed control for more consistent stirring.
ELECTRODE HOLDER AT THE REAR OF THE MACHINE
Contains more electrodes, is more sturdy, flexible, easy to disassemble and limits collision between electrodes.
DYNAMIC PUMP
The dynamic pumping feature helps users optimize titration time while still maintaining high accuracy, based on voltage changes to adjust the amount of reagent injected accordingly. When far from the end point, the machine will pump more reagent to shorten the time. When near the end point, the machine will pump less and less to ensure the accuracy of the process.
DETERMINING SIGNAL STABILITY (signal stability)
This feature will monitor and determine signal stability before proceeding with the next pump. This feature will ensure the measured results are always accurate throughout the titration process.
DETERMINING THE EQUIVALENCE POINT OF THE REACTION (equivalence endpoint)
Reaction equivalence point determination is a perfect feature for titrating reactions where the end point of the reaction is unknown, based on determining the largest mV signal increase during a single injection.
Phat Equivalence point performance is very important in applications where a fixed endpoint is not specified in standard methods. This endpoint indicates the point at which the mV value in the titration is maximum for the volume of titrant added.
Many types of titration
Depending on the type of connected electrode, the device can titrate acid-base, redox, complex, precipitate, anhydrous, etc.
SAFE DESIGN: TIn the event of a reagent leak, an external drain system protects the connections on the back of the meter and the internal prevents any liquid from reaching the internal electronics.
BURETTE AND PUMP
EASY TO REPLACE BURETTE
With the Clip-lock burette feature, it only takes a few seconds to replace a new burette into the pump, saving time and minimizing reagent contamination.
DIVERSE BURETTE SIZES
HI931 will be supplied with a 25mL burette
Additionally, the HI931 can use 5mL, 10mL, or 50mL burettes (purchased separately). Each burette consists of a glass cylinder and PTEF plastic plunger.
PIPE AND CYLINDER HAVE HIGH CHEMICAL DURABILITY
– The reagent distribution pipe system is made from flexible and highly chemically resistant material PTFE
– The cylinder is equipped with a polyurethane light cover to protect light-sensitive reagents.
HIGH PRECISION PUMP
Extremely high resolution 40,000-step piston pump capable of pumping reagent volumes as small as 0.125µL.
The pump has an additional option that can be combined with a peristaltic pump to pump more distilled water or chemicals into the sample cup.
DISPLAY
Large LCD screen, diverse colors, clear image display, helping users easily observe and operate the machine.
DETAILED GRAPH
Real-time graphs are displayed throughout the titration process, which is useful in cases where a new method is being tried or an old method needs to be adjusted.
EASILY SWITCH BETWEEN INTERFACE SCREEN
On-screen virtual selection keys allow users to easily switch between the home screen, real-time graphs, and menus on the fly.
DATA SAVING
Highly customizable reports.
Users can optionally adjust the data to be reported based on their work requirements.
Easily manage GLP information
All GLP information can be customized in different templates: sample information, company, operator, date, month...
Efficient data conversion
Data can be transferred via USB or computer easily via USB cable and HI900PC software.
The USB port is used to transfer reports, titration methods, and upgrade the instrument's software.
CONNECTIVITY FEATURES
HI931 Can be used as a titrator, pH meter, ORP meter, and ISE meter, helping to save laboratory space, analyzing multiple parameters in just one sample.
Connect Printer and Analytical Balance
Analytical balances with RS232 output can transfer sample weight directly to the meter.
Titration reports can be printed directly from the titrator to the connected printer.
ANALYTICAL METHODS
HI93X can contain up to 100 methods, each of which can be customized and optimized to suit the requirements of each different reaction during use.
Supports method setup
Hanna's technical department is always willing to assist customers in answering any questions about using the machine and setting up titration methods.
Supports multiple titration method packages
Hanna has many method packages to meet many different industries such as food, beverage, textile dyeing, wine production and pharmaceuticals. If you have any needs, please contact your local company for more detailed support.
Compatible with standard method sets.
Hanna experts can set up and customize titration methods based on standard method sets such as ISO, ASTM, AOAC, AOCS, EPA.
MAIN APPLICATION
– Redox reaction
– Acid-base reaction
– Precipitation reaction
– Complex formation reaction
– Reaction to anhydrous medium
Video
SPECIFICATIONS
|
Type of analysis |
Standard titration (standardization, default pH/mV, pH/mV equivalence point) Read value directly Back titration (HI932 only) |
|
Determine the end point |
default mV Default pH 1 point equals pH (1st or 2nd derivative) 1 point is equivalent to mV (1st or 2nd derivative) |
|
BURET |
|
|
Size |
5, 10, 25 and 50mL |
|
Resolution |
0.001 mL |
|
Pump speed |
0.3 mL to 2 x burette volume per minute |
|
Accuracy |
±0.005 mL (5mL burette) ±0.010 mL (burette 10mL) ±0.025 mL (burette 25mL) ±0.050 mL (burette 50mL) |
|
STIRRING SYSTEM |
|
|
The scale |
200 to 2500 rpm |
|
Resolution |
100 rpm |
|
pH |
|
|
The scale |
-2.0 to 20.0 pH; -2.00 ― 20.00 pH; -2,000 ― 20,000 pH |
|
Resolution |
0.1 pH / 0.01 pH |
|
Accuracy (@25ºC/77ºF) |
±0.001 pH |
|
Calibration |
Maximum 5 points (select from 8 standard buffers and 5 optional buffers). |
|
Heat compensation |
Automatic from -5.0 to 105.0°C; 23.0 to 221.0°F |
|
mV |
|
|
The scale |
-2000.0 to 2000.0 mV |
|
Resolution |
0.1 mV |
|
Accuracy (@25ºC/77ºF) |
±0.1 mV |
|
Calibration |
1 offset point |
|
ISE |
|
|
The scale |
1 x 10⁻⁶ to 9.99 x 10¹⁰ concentration |
|
Resolution |
first; 0.1; 0.01 concentration |
|
Accuracy |
±0.5% with valence atom I; ±1% with valence atom II |
|
Calibration |
Automatic, up to 5-point calibration, 7 fixed standard solutions available (0.01, 0.1, 1, 10, 100, 1000, 10000 optional according to concentration) and 5 custom solutions |
|
TEMPERATURE |
|
|
The scale |
-5.0 ― 105.0°C; 23.0 ― 221.0°F; 268.2 ― 378.2K |
|
Resolution |
0.1°C; 0.1°F; 0.1K |
|
Accuracy (@25ºC/77ºF) |
±0.1°C; ±0.2°F; ±0.1K, excluding electrode error |
|
DATA SAVING |
|
|
Method |
Up to 100 methods (standard and user options) |
|
Record data |
Up to 100 titration and pH/mV/ISE reports |
|
CONNECT |
|
|
Measure |
BNC port (pH, ORP, ISE half-cell and combined) 4 mm Banana port (reference electrode) RCA port (temperature electrode) Port 6 – battery (paddle) |
|
Peripheral |
6-pin DIN port (external PC keyboard) DB-25 port (printer) USB standard B port (PC port) Port 6 – battery (paddle) |
|
OTHER SPECIFICATIONS |
|
|
Electrode holder |
Reagent/titrant tube (4 holes) 3 x 12mm electrodes (3 holes) Temperature probe Stirring paddle |
|
Analog board |
1 |
|
Dosing pump |
2 |
|
Burette included |
1 (25mL) |
|
Burette volume |
5, 10, 25 and 50mL |
|
Burette resolution |
1/40000 |
|
Display resolution |
0.001 mL |
|
Pump precision |
±0.1% total burette volume |
|
Identify Burette |
Automatically detects burette volume when attached to the pump |
|
Display |
5.7” color LCD screen (320 x 240 pixels) |
|
Language |
English, Spanish, Portuguese. |
|
Electricity supply |
100-240 VAC, 50/60Hz HI931-01: US plug (type A); HI931-02: European plug (type C) |
|
Power draw |
0.5 Amps |
|
Operating environment |
10 to 40°C (50 ― 104°F), maximum 95% RH |
|
Storage environment |
-20 to 70°C (-4 ― 158°F), maximum 95% RH |
|
Size |
315 x 205 x 375 mm |
|
Mass |
Nearly 4.3 kg |
|
Supply includes |
– HI931 titrator – Stirring paddle and electrode holder – Burette 25mL - Pump - Temperature probe - USB cable – USB memory stick – Adapter - Quality certification - Warranty. - User manual |
