Spesifikasi Koehler Halogen Analyzer
Test Method
The Koehler Halogen Analyzer consists of a manual or automatic sample feed, a two-stage furnace, unit and a microcoulometric titration device. A combination of a quick-heating and programmable IR furnace and a constant-temperature reduction furnace ensure the complete, residue-free combustion of the samples in the oxygen flow. The combustion gases then enter the coulometric detection unit for analysis. Control of the overall system and measurement data evaluation is by means of user-friendly software.
Specifiction
Injection Volume:
AOX: up to 200mL aqueous sample
EOX: 10μL - 500μL injection volume
TX: solids max. 1g depending on material
Measurement Range: 0.1 – 300 μg Cl abs.
Precision: < 1% relative
Measurement Time: 5 – 10min depending on halogen content
Titration Current: 2 – 450 μA
Gases:
- Oxygen 99.95%
- Argon 99.95% for EOX
- Consumption each approx. 10 – 12 L/hr
Infrared Furnace
Maximum Temperature: 1000°C
- Up to 5 independently programmable temperature gradient and duration intervals
Resistance Furnace
Temperature Range: 20 to 1000°C
Description
Coulometric Titration Units
All of the Couloumetric Titration Units from Koehler offer:
Microcoulometric determination with a 3 electrode system.
• Heated gas outlet line.
• Potentiometric end point determination impedance converter mounted directly on the combination electrode, no interference during transmission of the measurement signal.
Both a closed and open titration stand configuration are available. The closed titration stand allows safe placement of the electrolysis cell, extraction and scouring of the waste gas, and tempered titration cell. The open stand allows the titration cell and gas line to be seen by the user at all times and provides a direct view of the detection unit.
Automatic Sample Changer
• Turntable for up to 52 containers with membrane filters.
• Automatic transfer of the samples into the combustion boat
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