The KDWS-28A is a portable precision dew point meter designed for accurate measurement of micro-water content in industrial gases, especially SF6. Using the cold mirror method with a dedicated miniature chiller, it achieves a measurement range of -75°C to +20°C DP with high accuracy (±0.2°C). The instrument features a 7-inch color touchscreen, built-in printer, and USB data export, enabling fully automated continuous measurement. With a compact design (≈12kg) and built-in lithium battery, it is ideal for field use, providing reliable dew point analysis for SF6 gas quality control in power systems.

• Fully automated continuous measurement with real-time cycle control for dew point analysis.
• Cold mirror measurement principle ensures high accuracy and repeatability.
• Dedicated miniature chiller enables rapid cooling to -80°C even at +40°C ambient temperature.
• 7-inch color touchscreen with intuitive interface for easy operation and data visualization.
• Built-in data storage and USB export for historical data access and report generation.
• Integrated thermal printer for on-site data printing and comprehensive data management.
• Stainless steel quick-connect gas interface ensures leak-proof operation and easy setup.
• Mirror heating cleaning function removes residual dew/frost, ensuring measurement accuracy.
• Compact, lightweight design (≈12kg) for easy portability and field deployment.
• Built-in rechargeable lithium battery supports off-grid field operation.

• Dew Point Measurement Range: -75°C~+20°C DP, Accuracy: ±0.2°C, Resolution: 0.01°C, Repeatability: ±0.1°C
• Measured Gases: SF6, nitrogen, oxygen, argon, and non-corrosive gases
• Gas Flow Rate: ≤600ml±50ml/min, Display: Digital flow meter
• Inlet Pressure: ≤0.2MPa
• Operating Environment: Temp -30°C~+55°C, Humidity ≤95% RH
• Display: 7-inch color touchscreen showing dew point, flow, and data status
• Power Supply: AC220V±10% 50Hz; Built-in rechargeable lithium battery (≤100W power consumption)
• Data Storage: Automatic save for historical records, USB export for data analysis
• Printing: Built-in thermal printer for on-site data output
• Dimensions: 340mm × 230mm × 200mm (L×W×H)
• Net Weight: 12kg, Gross Weight: 16kg (with packaging)
• Measurement Principle: Cold mirror (chilled mirror) principle
• Cooling Source: Special industrial miniature chiller (cooling to -80°C at +40°C ambient)