HANNA instruments - HI 903
An extremely adaptable titrator capable of titrating with superior accuracy and precision even for samples with low moisture content
The HI 903 comes equipped with a solvent handling system to reduce cell conditioning time and can be connected directly to your laboratory balance via serial interface.The HI 903’s powerful software and intuitive menus are easily navigated on the large color LCD display making it simple to view results, choose from included methods or develop a custom method for almost any application or sample type.
The result is an extremely adaptable titrator capable of titrating with superior accuracy and precision even for samples with low moisture content.
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Features of HI 903
-
Rechargeable Indicating Desiccant
- Prevents ingress of ambient humidity into the sealed solvent system while maintaining full titrator functionality
- Minimizes changes to titrant titer
- Indicates when adsorption capacity is depleted
- Regenerates at 150°C Easy to Operate
- User friendly interface
- Context sensitive help screens
- Self diagnostic features for peripheral devices including pump, valve, burette and stirrer Easy to View Results
- 7.5” (320 x 240 pixel) backlit color LCD
- Titration graphs can be displayed on the LCD and saved as a bitmap
- Results are displayed directly in the selected units Beaker top
- Chemically-resistant reaction vessel cap and fittings
- Quick-remove sample port plug with replaceable silicone rubber septum Anti-diffusion burette tip
- Accurately delivers as little as 0.125 µL of titrant
- Delivers titrant in high turbulence zone, ensuring rapid reaction.
- Prevents unwanted diffusion of titrant Sealed Solvent System
- Change to fresh solvent in a matter of seconds without opening the titration vessel
- Minimizes exposure to ambient humidity, reducing titrant consumption and saving time
- PTFE solvent tubing is resistant to harsh KF solvents and titrants Built-in stirrer
- Automatic, integrated magnetic stirrer adjustable from 200-2000 RPM
- Optical feedback for automatic speed control
- Optional external stirrer available PTFE Bottle Cap
- PTFE caps fit any GL45-threaded bottle
- Chemically resistant caps and fittings
- Desiccant cartridges allow pressure equalization while preventing ambient moisture ingression
General Specifications
| Depth | 13.8 in |
| Height | 14.9 in |
| Width | 15.3 in |
| Weight | 22 lbs |
| Titrator Type | Potentiometric |
Additional Specifications
Features and Scope
Range of Titratable Water Content: 100 ppm to 100%
Sample Type: Solid or liquid
Determination
Pre-Titration Conditioning: Automatic
Background Drift Correction: Automatic or user selectable value
Endpoint Criteria: Fixed mV persistence, relative drift stop, absolute drift stop
Dosing: Dynamic with optional pre-dispensing rate
Result Units: %, ppm, mg/g, µg/g, mg, µg, mg/mL, µg/mL, mg/pc, µg/pc
Result Statistics: Mean, standard deviation
Interfaces
BNC: Measuring Input for dual platinum pin, polarization electrode
PC: PC connectivity for transfers of methods and titration results
USB: Flash drive compatibility for transfers of methods, titration results and software upgrade files
RS 232: Analytical laboratory balance interface
Parallel Port: Printer connectivity
Stirring Connection: Option for control of external stirring apparatus
VGA: Monitor instrument status and titrations from a distance using any VGA compatible external monitor
PS/2: Enter alphanumeric text with an optional full keyboard
Hardware
Display: 7.5” (320 x 240 Pixel) Color LCD
Titration Vessel: Conical with operating volume between 50-150 mL
Clip-Lock™ Exchangeable Burette System:
[u]Syringe:[/u] 5 mL precision ground with Teflon plunger; Dosing Pump: 40,000 Step (0.125 µL Resolution)
[u]Dispensing Tip:[/u] Glass, fixed position, anti-diffusion; Valve: Motor-driven 3/2-way, Teflon liquid contact material
[u]Tubing:[/u] Teflon with light block and thermal jacketing
Mixing System: Optically regulated, digital, magnetic stirring 200-2000 RPM with 100 RPM resolution
Solvent Handling System: Add fresh or remove depleted solvent without opening cell
Electrode: Dual platinum pin, polarizable electrode
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