Moisture analyser for HFCs and refrigerants, IceMan model

A moisture analyser specifically designed for precise measurement in hydrofluorocarbons (HFCs) and modern refrigerants. These gases present particular challenges: keeping high-boiling-point compounds in the gas phase and preventing moisture instability due to their chemical nature.

The Iceman incorporates an automatic dual-heating vapourisation system, a thermal sensor and a heat exchanger that conditions the gas just before it enters the cell. This design ensures accuracy and stability, and eliminates the need for multiple spot samples, thereby reducing the risk of contamination.

It is a portable, robust unit with a NEMA 4X enclosure, an internal battery and simple operation, ideal for both field and laboratory use.

Key features:

• Designed for HFCs and refrigerants: keeps the gas in the vapour phase and stabilises moisture levels.
• Absolute measurement: no drift and no need for external calibration.
• Gas temperature conditioning: ensures consistency and accuracy.
• Portable and robust: NEMA 4X enclosure, internal 24 VDC battery and modular design.
• Easy to use: microprocessor, simple interface and direct flow rate adjustment via an external valve.
• Selectable units of measurement: ppmV, ppmW, °C or °F dew point.
• On-line verification: Delta Flow procedure to check sensor linearity.
• CE approval.

Applications:

• Manufacture and use of refrigerants.
• Fire extinguishers, aerosols and propellants.
• Air conditioning and heat pumps.
• Use of refrigerants as etchants in semiconductors.
• Refrigerants as a heat transfer medium in geothermal power generation.

• Range and performance
  • Detection limit (DL): 1 ppmV (resolution 0.1 ppmV).
  • Operating range: 0–1000 ppmV.
  • Accuracy: ±5% or 0.4 ppmV (with supplied burette).
• Operating conditions
  • Inlet pressure: 20–100 psig.
  • Ambient temperature: –20 °C to +60 °C.
  • Humidity: max. 80% RH, non-condensing.
  • Total flow rate: 1.1 slpm (100 sccm sample + 1000 sccm bypass).
• Connections and electronics
  • Gas connections: 1/8’’ compression fittings.
  • Signal output: 0–1 VDC (RS‑232 optional).
  • Alarms: 2 adjustable humidity levels.
• Power supply:
  • Internal: 24 VDC rechargeable battery.
  • External: optional 24 VDC power supply.
• Interface and construction
  • 16-character alphanumeric LCD display.
  • Weight: 8.6 kg.
  • Dimensions: 29.2 cm H x 26.9 cm W x 15.87 cm D
  • Materials in contact with gas: brass, stainless steel and PTFE.
  • Enclosure: NEMA 4X.
  • Certification: CE.

Moisture in refrigerants and HFCs

Consult