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General| Category | Laboratory Equipment |
|---|---|
| Model | HI 904 |
| Manufacturer | Hanna Instruments |
| Number of pumps | 1 |
| Number of burettes | 1 |
| pH Accuracy | ±0.002 pH |
| mV Range | ±2000 mV |
| mV Resolution | 0.1 mV |
| mV Accuracy | ±0.1 mV |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.1 °C |
| GLP | Yes |
| pH Range | -2.0 to 20.0 pH |
| pH Resolution | 0.001 pH |
| Titration Types | Acid/Base, Redox (ORP), Complexometric, Precipitation |
| Endpoint Detection | pH, mV, First Derivative, Second Derivative |
| Dosing Mode | Dynamic, Incremental |
| Syringe Volume Options | 5 mL, 10 mL |
| Stirrer | Magnetic stirrer |
| Stirring Speed | 200 to 2000 rpm |
| Display | Color LCD |
| Data Storage | up to 100 titration methods |
| Connectivity | USB, RS232 |
| Power Supply | 100-240 VAC, 50/60 Hz |
| Weight | 10 kg |
| Temperature Range | -5.0 to 105.0 °C |
Lists the items included in the titrator package.
Essential safety precautions to follow when using the titrator.
Procedures for setting up the titrator hardware.
Diagram and labels for the top view of the titrator assembly.
Diagram and labels for the rear view of the titrator.
Steps for assembling the main titrator components.
Step-by-step instructions for connecting the air pump.
Procedure for connecting the reagent adapter holder.
Details on the titration vessel and its assembly.
Information on connecting power and other electrical interfaces.
Instructions for assembling reagent and waste bottles.
Procedure for connecting the reagent exchange adapter.
Steps for powering on and initializing the titrator.
Detailed description of the titrator's keypad layout and functions.
Explanation of the titrator's graphical display and screen elements.
How to navigate through menus and select options.
How to save changes made to settings or methods.
Procedure for saving titration files to a USB drive.
Procedure for restoring files from a USB drive.
Instructions for connecting the titrator to a PC via USB.
How to perform a calibration check on the analog board.
Configuration for connecting an analytical balance for automatic mass acquisition.
Procedure to restore the titrator to its original factory settings.
Instructions for updating the titrator's software.
Steps to choose and activate a titration method.
Information on managing standard titration methods.
Managing custom titration methods created by the user.
Steps for creating new custom titration methods.
How to view and edit existing method parameters.
Configuring parameters specific to the sample.
Entering the sample size for the analysis.
Setting the polarization current for electrode measurement.
Defining the mV value at which the titration endpoint is reached.
Selecting the mode for generator current (Auto or Fixed).
Setting parameters related to the end of the titration.
Choosing the criterion for ending the titration.
Setting the time for electrode potential stability at the endpoint.
Process of preparing the titration vessel before the main analysis.
Automatic measurement of moisture ingress into the cell.
Procedures for performing sample analysis.
Procedure for automatically acquiring sample mass from a balance.
Steps to add reagent to the titration vessel using the air pump.
Steps to remove waste from the titration vessel.
Procedures for cleaning and maintaining the generator electrode.
Procedures for cleaning and maintaining the detector electrode.
Steps for connecting the titrator to a PC using USB.
Adjusting parameters to optimize titration methods.
Setting parameters that control the titration process.
Optimizing the titration speed for accurate results.
Setting parameters related to the end of the titration.
Setting the time for endpoint stability validation.
Defining criteria for stopping titration based on drift.
Configuring specific parameters within a method.
Setting the background drift rate for analysis.
Procedures and considerations for sample handling.
Guidelines for obtaining representative samples.
How to determine the appropriate sample size for analysis.
Methods for preparing samples before titration.
Information on Karl Fischer reagents and standards.
Using water standards for titrator performance verification.
List of reagents for generators with diaphragms.
List of reagents for generators without diaphragms.
Recommended water standards for calibration and validation.
Detailed explanation of Karl Fischer titration principles and methods.
Explanation of coulometric Karl Fischer titration.
Common sources of error in titration procedures.
Formulas for calculating water content in volumetric KF titrations.
Formula for calculating titer using a sodium tartrate standard.
General equations applied in titration calculations.
Definition of Karl Fischer titration.
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