CFH-LN2
EN-SCI Cryogenic Frost Point Hygrometer – LN2 Variant (CFH-LN2)
The EN-SCI CFH-LN2 offers high-accuracy, in-situ atmospheric water vapor profiling from the surface through the mid-atmosphere, using an environmentally conscious design. This robust, balloon-borne sonde utilizes Liquid Nitrogen (LN2) cryogen and features specific engineering adaptations for reliable performance, providing a sustainable alternative for demanding research applications.
Key Features:
- Eco-Friendly Operation: Optimized design tailored to utilize Liquid Nitrogen (LN2), a cryogen with zero Global Warming Potential (GWP), supporting sustainability goals.
- Reference-Quality Accuracy & Sensitivity: Aims for reference-quality accuracy (ppmv levels), comparable to the standard CFH.
- Lightweight & Low Power: Optimized for versatile balloon deployments.
- Ascent/Descent Profiling Capability: Capable of continuous, accurate measurements during both balloon ascent and descent phases.
- Ozonesonde Compatible & Software Supported: Fully compatible with EN-SCI ECC ozonesondes and includes monitoring software.
Primary Applications:
- Atmospheric Profiling & Process Studies
- Cloud Physics & In-Cloud Measurements
- Sensor Validation & Intercomparison
Technical Specifications
| CFH-LN2 | |
|---|---|
| Cryogen Used | Liquid Nitrogen (LN2) |
| Measurement Technique | Temp-controlled Chilled Mirror |
| Measured Parameter | Ambient Frost Point |
| Derived Parameters | Relative Humidity, Mixing Ratio |
| Uncertainty Measurement | 4% in tropical lower troposphere, 10% in middle stratosphere, 9% in tropopause |
| Operational Range | 0 - 25 km (all climates) |
| Instrument Dimensions | coming soon |
| Flight Box Dimensions | coming soon |
| Package Weight (without coolant) | coming soon |
What’s Included:
- EN-SCI CFH-LN2 Sonde Unit
- Durable Polystyrene Foam Flight Box
- Lithium Metal Batteries
- Operator Manual
- (Note: Requires user-supplied Liquid Nitrogen (LN2) cryogen.)
Required Preparation Supplies:
Pre-flight preparation using the CFH Full Test Kit (sold separately) is essential for operation. Test kit consumable supplies can be replenished here.
Warranty: EN-SCI warrants this product to be free of defects in material and workmanship for up to one year from the shipped date or first flight, whichever comes first. See full warranty for details and limitations.
Expert technical support via email and phone is included to assist with your operations.
