Product Description
The HI933 is an automatic volumetric Karl Fischer titrator with high accuracy, great !exibility 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.
FEATURES:
~ Small footprint, requires minimal bench space
~ Casing made with strong, chemically resistant plastic
~ Powerful built-in algorithms for termination criteria based on fixed mV endpoint or absolute/relative drift
~ Titrant standardization and sample analysis averaging
~ Minimized water vapor entry with the Sealed Solvent System
~ Balance interface for automatic weighing
~ Support for 100 titration methods
~ User-customizable reports
~ Clearly displayed warning and error messages
TITRATOR 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.
Drift Rate Compensation - The HI933 automatically adjusts the titration calculation to account for the e$ects of any ambient humidity entering the titration cell. This provides a more accurate result by correcting for water not present in the actual sample.
Titration Results Averaging - Successive results from a titration method may be averaged with recording of the standard deviation.
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.
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.
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.
SPECIFICATIONS:
Range: 100 ppm to 100%
Resolution: 1 ppm to 0.0001%
Result Units: %, ppm, mg/g, µg/g, mg, µg, mg/mL, µg/mL, mg/pc, µg/pc
Sample Types: liquid or solid
Pre-Titration Conditioning: automatic
Background Drift Correction: automatic or user-selectable value
Endpoint Criteria: fixed mV persistence, relative drift stop or absolute drift stop
Dosing: dynamic with optional pre-dispensing rate
Result Statistic: mean, standard deviation
Dosing Pump Resolution: 1/40000 of the burette volume (0.125 µL per dose) with 5 mL burette
Dosing Pump Accuracy: ±0.1% of full burette volume
Syringe: 5 mL precision ground glass with PTFE plunger
Valve: motor-driven 3-way, PTFE liquid contact material
Tubing: PTFE with light block and thermal jacketing
Dispensing Tip: glass, fixed position, anti-diffusing
Titration Vessel: conical with operation volume between 50-150 mL
Solvent Handling System: sealed system, integrated diaphragm air pump
Sensor Type: HI76320 dual platinum pin polarization electrode
Sensor Connection: BNC
Programmable Stirrer: magnetic, optically regulated, digital stirrer; 200 to 2000 rpm; resolution 100 rpm
Display: 5.7 in. (320 x 240 pixel) color LCD
Methods: up to 100 methods (standard and user-defined)
Logging Data: up to 100 complete titration reports and drift rate reports can be stored
Peripherals (Rear): connections for VGA display, PC-keyboard, parallel printer, USB device input, RS232
GLP Conformity: Good Laboratory Practice and instrument data storage and printing
Languages: English, Portuguese. Spanish, and French
The following link provides additional information from the manufacturer's brochure. Click to open the PDF in a new window or right-click to download it:
Hanna HI 933 Volumetric Karl Fischer Titrator or copy the following into your browser address window: labequip.com/stock/pictures/n2169.pdf
Made in USA.
ACCESSORIES:
COMES COMPLETE WITH:
- HI76320 dual platinum pin electrode
- dosing pump
- 5 mL burette assembly with tubing
- air pump/stirrer assembly with tubing
- beaker and bottle top assemblies and all fittings
- desiccant cartridges (4) with indicating
desiccant
- stir bar
- waste bottle
- calibration key
- USB cable
- power cable
- USB flash drive
- quality certificate
- ISO 8655 burette compliance report
- instruction manual binder.
