RH Systems G3

Additionally, Stirling cryo-coolers (more accurately Free-Piston Stirling Coolers) are used to cool the saturator.
With these improvements over conventional designs, the G3 has better accuracy and performance at low humidity due to reduced permeation effects, improved thermal insulation and control, faster cool down characteristics, and better maintenance access.

Key Features

Precision Meets Innovation – The G3 Frost Point Generator isn’t just another humidity tool—it’s a leap forward in ppb level calibration and testing. By combining vacuum-sealed insulation with dual Stirling cryocoolers, it eliminates the permeation and thermal transfer issues that plague conventional frost point generator systems.

Ultra-Low Range

Frost/Dew Point from -120°C to +10°C – Perfect for applications demanding extreme dryness, like semiconductor manufacturing or aerospace testing.

1. Vacuum-Insulated Saturator – Unlike traditional insulation, the G3’s vacuum chamber actively removes water vapor, ensuring no permeation and unmatched thermal stability.
2. Dual CFC-Free Cryocoolers – Cuts cooldown time in half, or more, so you spend less time waiting and more time testing.
3. Three Independent Flow-Controlled Outputs – Need multiple test streams? The G3 delivers three precise, adjustable flows up to 10 slpm total, all from a single unit.
4. Hybrid Two-Temperature, Two-Pressure Principle – A NIST-proven method for absolute accuracy, even at the lowest humidity levels.