Chuyên Thiết Bị / Products / Water Quality Tester / Tirators /

Karl Fischer Coulometric Titrator Hanna Instrument HI904

Máy chuẩn độ Hana Instruments Coulometric Karl Fischer HI904

Product Information

Manufacturer: Hanna Instrument
Model: HI904
Warranty: 12 months

Thông tin khuyến mãi

Sản phẩm tạm thời chưa có khuyến mãi!

Yêu cầu báo giá

Category: Tirators

Easy to buy

Variety mode of payment

Free shipping

For orders from 3,000,000 VND

Support 24/7

Even outside working hour

Contact Ho Chi Minh City

Tel: (028).3977.8269 / 0906.988.447

Email: sales@lidinco.com

Contact Bac Ninh, Ha Noi City

Tel: (0222).730.0180

Email: bn@lidinco.com

Other Contact:

Description

The HI904 Karl Fischer Coulometric Titrator is an automatic titration system for the measurement of trace amounts of water in various samples. The Coulometric Titrator complements our wide range of titration products dedicated to efficient and accurate laboratory analysis. The HI904 analyzes for water content ranging from 1 ppm to 5%. This powerful titrator effectively monitors the Karl Fischer reaction, detects the endpoint, and performs all necessary calculations and graphing.
Dynamic Titrant Dosing
The dynamic titration speed allows for timely and accurate titration results by relating the amount of iodine generated to the mV response from the Karl Fischer reaction. This provides for a larger generation of iodine near the beginning of a titration and more precise pulses near the titration endpoint.
Drift Rate Compensation
The HI904 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.
Selectable Endpoint Criteria
The HI904 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.
Coulometric Titration System
Purposeful Generator Design
Two styles of generators are available for the HI904; a fritted design ideal for samples with low water content and high accuracy demand; and a fritless generator allowing for easier cleaning and maintenance.
Precision Iodine Generation
Our dosing algorithm allows for an extremely small amount of iodine necessary for the Karl Fischer reaction to be generated electrolytically using a pulsed current up to 400 mA, delivering iodine accurately and precisely.
Titration & Solvent System
Chemically Resistant Vessel & Tubing
The glass titration cell and PTFE tubing is designed to withstand the harsh solvents and reagents involved in Karl Fischer reactions.
Sealed Solvent System
Ground glass joints completely seal the glass titration cell, minimizing exposure to ambient humidity, keeping the system dry, and reducing reagent consumption while saving time between titrations. Solvent may be exchanged in a matter of seconds with a quick fitting adjustment.
High Efficiency Desiccant
High efficiency molecular sieve desiccant helps maintain low and stable drift rates within the titration cell while preventing the ingress of ambient humidity into the sealed solvent system.
Interface & Display
Interactive Color Display
A large, color LCD screen clearly shows the chosen titration method along with results, units, total water, drift rate, and mV value.
Detailed Titration Graphs
A real-time titration curve can be displayed during each titration; this feature is useful when new methods are tested or when a procedure requires optimization.
Simple & Quick Navigation
Virtual key selections present on the display allow for simple and quick navigation between screens and menus without getting lost in a nest of information.
Data & Storage
Customizable Titration Reports
Each titration report is fully customizable so users can ensure they are storing and filing the appropriate data required for their application and procedures.
Flexible GLP Management
All necessary GLP (Good Laboratory Practice) information can be recorded with each sample including: sample identification, company and operator name, date, time, and electrode ID codes.
Effortless Data Transfer
Data can easily be transferred to a USB flash drive or PC with the Hanna HI900PC application software. The USB port allows for the transfer of titration methods, titration reports, and software upgrades via USB flash drive.
Connectivity & Functionality
Configurable Balance Interface
Sample size may be automatically entered from any laboratory analytical balance with a RS232 serial output saving time and labor.
Multiple Peripherals
Users can print reports directly from the titrator using a standard parallel printer. An external monitor and keyboard may be attached for added versatility, as well as an analytical balance for automatic sample mass entry for titrations.
Methods of Analysis
Customizable Methods
The HI904 can store up to 100 user-defined or standard titration methods. Each method may be customized and optimized for performance based on application and user requirements.
Titration Method Support
Onsite installation, training, and customization is available from one of our Applications or Service experts. Hanna offers continued support via phone or webinar for any questions you might have along the way.
Adaptable Standard Methods
Our technical experts can program and customize standard methods developed by such affiliations as ISO, ASTM, AOAC, AOCS, EPA, and more directly onto your titrator. Ask our Sales Consultants which standard methods are possible with our HI904 Karl Fischer system.

Xem thêm

Thông số kỹ thuật

Titration Principle	coulometric Karl Fischer
Titration Range	1 ppm to 5%
Titration Resolution	0.1ppm to 0.0001%
Measurement Units	%, ppm, ppt, mg/g, μg/g, mg, μg, mg/mL, μg/mL, mg Br/100g, g Br/100g, mg Br, g Br
Sample Type	liquid or solid with external dissolution / extraction
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 Type	dynamic with optional pre-dispensing rate
Result Statistics	mean, standard deviation
Titration Vessel	operating volume between 100 – 200 mL
Solvent Handling System	sealed system, integrated diaphragm air pump
Connection Type	BNC
Polarization Current	1, 2, 5, or 10 μA
mV Range	2 mV to 1100 mV
mV Resolution	0.1 mV
mV Accuracy	±0.1%
Stirrer Type	magnetic, optically regulated, digital stirrer
Stirrer Speed	200 to 2000 rpm
Stirrer Resolution	100 rpm
Titrator Methods	up to 100 methods (standard and user-defined)
Reports	up to 100 complete titration reports and drift rate reports can be stored
GLP Conformity	Good Laboratory Practice and instrument data storage and printing
Peripheral Devices	connections for VGA display, PC-keyboard, parallel printer, USB device input, RS232
Display	5.7” (320 x 240 pixel) color LCD
Keypad	polycarbonate
Languages	English, Portuguese. Spanish, and French
Power Supply	100-240 VAC; “-01” models, US plug (type A); “-02” models, European plug (type C)
Environment	operating: 10 to 40°C (50 to 104°F), up to 95% RH storage: -20 to 70°C (-4 to 158°F), up to 95% RH
Dimensions	390 x 350 x 380 mm (15.3 x 13.8 x 14.9 in)
Weight	approximate 10 kg (22 lbs)