Measurement sample cell VKM0470418

gas

Overview
The MH Multipass 5,2 - 4 channel pyro is a Herriott-type quad-channel multipass gas cell designed to increase sensitivity in non-dispersive infrared (NDIR) analysis. The compact 120 mm housing provides an extended optical path of approximately 5.2 m (one paragraph on the source page also references ~3.9 m). The cell supports simultaneous four-channel measurement for trace gas detection and reference signals in compact analytical and OEM applications.

Key facts

• Compact Herriott-type multipass cell (≈5.2 m optical path / 120 mm total length)
• Optimized for Micro-Hybrid JSIR 350-4 emitters and 4-channel pyro/thermopile detectors
• Rigid, vibration-resistant mirror mounts for stable alignment
• 6061-T6 aluminum housing with PTFE coating, gold-coated K9 mirrors, CaF₂ windows
• Gas-tight O-ring sealing system
• Detectable gases: CO, CO₂, CH₄, SO₂, NO, N₂O, SF₆, etc.
• Operating temperature: -20 °C to +60 °C; pressure range: 500–1300 mbar

Features and detailed description
The 6061-T6 aluminum housing with a PTFE protective layer reduces corrosion and contamination risk in humid or chemically aggressive environments. Gold-coated K9 mirrors and CaF₂ windows ensure high reflectivity and IR transmission across a broad wavelength range. The rigid mirror mounts and vibration-resistant mechanical design secure optical alignment and long-term signal stability under dynamic industrial conditions. A gas-tight O-ring sealing system supports safe operation between 500 and 1300 mbar. The HC 3900 quad is optically matched to Micro-Hybrid JSIR 350-4 emitters and quad-channel thermopile or pyroelectric detectors, enabling integration into Micro-Hybrid NDIR platforms and OEM modules. The cell is configurable for multiple target gases and environmental setups and is suitable for emission monitoring, analytical instruments, and compact NDIR systems.

Bulk prices
starting from 1 — 1.736,59 €
starting from 5 — 1.335,84 €
starting from 10 — 1.200,45 €

Technical specifications

• Product type: Herriott-type multipass gas cell (quad-channel)
• Optical path: approximately 5.2 m (page also references ~3.9 m)
• Total housing length: 120 mm
• Housing material: 6061-T6 aluminum with PTFE coating
• Mirrors: gold-coated K9 mirrors
• Windows: CaF₂ (calcium fluoride)
• Mirror mounts: rigid, vibration-resistant
• Sealing: gas-tight O-ring system
• Pressure range: 500 to 1300 mbar
• Operating temperature: -20 °C to +60 °C
• Optimized for: Micro-Hybrid JSIR 350-4 emitters and quad-channel thermopile or pyroelectric detectors
• Detectable gases: CO, CO₂, CH₄, SO₂, NO, N₂O, SF₆, etc.
• Applications: emission monitoring systems, analytical instruments, OEM NDIR modules