Metrology-Grade Chilled Mirror Hygrometer Systems
Primary-Standard Dew and Frost Point Measurement for Calibration Laboratories and High-Purity Gas Systems.
Precision dew point measurement through intelligent control
Designed for stable thermodynamic equilibrium, rapid stabilization, and long-term measurement reliability.
Technology
Controlled convergence to true dew point equilibrium
Minimal Overcooling
Optimized mirror temperature control avoids unnecessary deep cooling during the initial measurement cycle.
Rapid Stabilization
Controlled convergence reduces rebound and oscillation，enabling faster equilibrium detection.
Primary-Standard Accuracy
Direct thermodynamic dew/frost point measurement based on condensation equilibrium.
Simplified Measurement Architecture
No auxiliary humidification modules required.
Gas-Specific Optimization for Nitrogen and SF₆ Systems
Optimized control strategies address supercooled water formation in nitrogen and phase-transition constraints in SF₆ systems.
Four Configurations
One Measurement Principle
RDP-70
Laboratory Chilled Mirror Hygrometer
Primary reference-grade performance
Measurement down to -70ºC frost point
Optimized for ISO/IEC17025 calibration laboratories
Primary-standard-level accuracy and stability
RDP-60
Portable Chilled Mirror Hygrometer
Designed for on-site moisture verification
Measurement down to -60ºC frost point
Portable and stable industrial-grade platform
Reliable performance for utility and industrial environments
RDP-206
SF6 Precision Dew Point Hygrometer
Precision moisture analyzer for SF₆ gas systems
• Designed for SF₆ and SF₆ mixed gas moisture measurement
• Measurement down to −55 °C frost point
• Stable chilled mirror technology for high-accuracy moisture analysis
• Ideal for GIS equipment manufacturers and power utilities
RDP-80
Extended Range Laboratory Chilled Mirror Hygrometer
Extended low frost point measurement for advanced laboratories
• Extended measurement range down to −80 °C frost point
• High-precision chilled mirror technology
• Optimized for metrology institutes and advanced calibration labs
• Stable and reliable performance for traceable measurements
Why RESHINING Instruments?
Interested in evaluating the RDP platform?
Primary-Standard-Level Accuracy
±0.2ºC dew/frost point accuracy(under laboratory reference conditions, k=2)
Direct thermodynamic measurement
Traceable to National Metrology Institutes(NMI) Including NIST-Traceable calibration through accredited laboratories
True Chilled Mirror Technology
No long-term sensor drift
No sensor aging or replacement cycles
Direct dew/frost measurement
Built for Industrial and Metrology Environments
Optimized for high-purity gas systems
Reliable performance in laboratory and field applications
Suitable for ISO/IEC 17025 calibration laboratories
Engineered for Long-Term Stability
Stable mirror temperature control architecture
Rapid equilibrium without sustained oscillation
Designed for continuous industrial operation
Evaluation units may be available for qualified laboratories，calibration facilities，and industrial partners
Typical Applications
Calibration Laboratories
Reference and transfer
National metrology institutes
ISO/IEC 17025 accredited calibration laboratories
Semiconductor Industry
Semiconductor high-purity gas systems
Process gas moisture verification
Industrial Gas and Power Utilities
SF₆ moisture verification in gas-insulated equipment
High-purity and specialty gas quality control
Industrial gas production and filling facilities
Power utility commissioning and maintenance
Power Grid Laboratories
Precision Without Compromise
Built on the fundamental principle of thermodynamic dew point measurement—delivering stable，absolute，and traceable results.
Built for long-term stability in real-world industrial environments.