HM-WS1 Karl Fischer Coulometric Moisture Analyzer

Product Introduction

The HM-WS1 is a semi-automatic Karl Fischer coulometric moisture analyzer designed for budget-conscious laboratories requiring reliable trace water determination. Employing the Karl Fischer coulometric titration principle — based on the quantitative reaction of iodine, sulfur dioxide, and water — the instrument measures moisture content across a range of 0.0001% (1 ppm) to 100% with a sensitivity threshold of 0.1 μg H₂O.

The instrument features automatic stirring control and completes a typical determination in approximately 60 seconds. A sealed titration cell bottle prevents reagent exposure to the operator, while compatible solid and liquid sample injectors enable indirect measurement of diverse sample types. The LED five-digit decimal display provides clear numerical readout, and the electrolysis current is automatically controlled up to a maximum of 400 mA.

Compliant with 23 national and industry standards (GB/T and SH/T series), the HM-WS1 is suitable for trace moisture measurement in petroleum, chemical, pharmaceutical, pesticide, and electric power applications.

Applications / Testing Items

• Petroleum products moisture determination

• Chemical industry trace water analysis

• Pharmaceutical moisture content testing

• Pesticide water content measurement

• Electric power insulation oil testing

• Liquid sample trace water determination

• Solid sample indirect moisture measurement

Features

1. Karl Fischer coulometric titration (coulometric analysis) based on I₂/SO₂/water quantitative reaction

2. Semi-automatic operation with automatic stirring control for straightforward daily use

3. Measurement range from 0.0001% (1 ppm) to 100% moisture content

4. Sensitivity threshold of 0.1 μg H₂O for trace-level water detection

5. Automatic determination completing in approximately 60 seconds

6. Sealed titration cell bottle preventing reagent-operator contact

7. Compatible with solid and liquid sample injectors for indirect measurement

8. LED five-digit decimal display for clear numerical readout

9. Electrolysis current automatically controlled up to 400 mA

10. Compliance with 23 national and industry standards (GB/T, SH/T series)

11. Operating temperature range of 5–40°C for standard laboratory environments

12. AC 220V ±10% power supply compatible with standard laboratory mains

Main Parameters

Technical Parameters

• Previous: no more
• Next: HM-WS2 Karl Fischer Coulometric Titrator