NastyBoy model chlorine gas moisture analyser

An online moisture analyser specifically designed for the continuous and accurate measurement of trace moisture in chlorine gas, one of the most corrosive and demanding environments in the chemical industry. Its design combines robustness, safety and accuracy, incorporating highly corrosion-resistant materials and a double-casing architecture that protects the electronics from aggressive atmospheres.

Based on P₂O₅ electrolytic technology and Faraday’s Law, the NastyBoy provides an absolute measurement, free from drift and requiring no calibration, even under severe operating conditions.

Key features:

• Absolute measurement without calibration: Faraday-based electrolytic technology specific to water.
• Corrosion-resistant design: all components in contact with the gas are made from Kynar™, Teflon™, stainless steel and glass.
• Two-wire transmitter (4–20 mA): direct integration into industrial systems with low installation costs.
• Isolated electronics: NEMA 4X double-envelope housing that separates the flow system from the electronics.
• Inert gas purging: prevents chlorine build-up and improves operator safety.
• Online diagnostics: rapid verification via Delta Flow without taking the equipment out of service.
• Flexible mounting: suitable for industrial installations, racks and process environments.
• Designed for harsh applications: stability and accuracy even in corrosive dry chlorine atmospheres.

Applications:

The NastyBoy is ideal for any stage where the absence of moisture in chlorine is critical:

• Outlet of the sulphuric acid dryer: verification of chlorine drying efficiency.
• Detection of moisture ingress in vacuum systems: prevention of internal corrosion and the formation of ferric chloride.
• Pre-transport checks on chlorine: verification of purity during storage and transfer to pipes or tanks.
• Industrial processes involving dry chlorine: protection of equipment, pipes, condensers and electrical components.

• Range and performance
  • Measurement range: 0–200 ppm.
  • Detection limit: <1 ppm.
  • Accuracy: ±5% or ±0.4 ppm (whichever is greater).
  • Response time: 95% in 5 min (change from 1 to 10 ppm).
• Operating conditions
  • Sample pressure: 3–50 psig.
  • Sample flow rate: 100 sccm.
  • Bypass: 0–2 scfh.
  • Ambient temperature: –10 to 60 °C.
  • Standard heater to prevent condensation: 115/220 VAC, 50/60 Hz.
• Connections and electronics
  • Analogue output: 4–20 mA, max. 475 Ω @ 24 VDC.
  • Gas connections: 3/8’’ compression fittings.
  • Electrical connections: 2’’ conduit.
  • Electrolytic cell: Cl₂ type, specifically for chlorine.
• Construction
  • Materials: Kynar™, Teflon™, stainless steel and glass.
  • Housing: two NEMA 4X enclosures (flow and electronics).
  • Overall dimensions: 19’’ x 9.25’’ x 6.09’’.
  • Total weight: 17 lb (7.7 kg).

Moisture in chlorine

Consult