Constant Volume Sampler
CVS 8000
Exhaust dilution system using critical flow venturis for maintaining a constant exhaust flow as well as exhaust sampling
The unit is designed according the legal requirements ECE R83 and EG 70/220 for Europe, Federal Register for USA (§ 86.109, §86.110) and Japan Trias 60.

The MAHA CVS 8000 is installed inside a compact cabinet, which consists of two main segments. The front part of the cabinet incl. the therin installed system components can be separated and moved out of the way by integrated rolls.

This allows easy access to all critical components for maintenance purposes. The venturi system contains 4 parallel venturis, which can be closed and opened using a highly responsive valve system. This allows a fast switching between any of the 15 possible flow rates. The venturis are visible from the front of the system and can be quickly removed for cleaning and maintenance purposes by taking advantage of the two-part designed system cabinet.

The venturi inlet is equipped with a temperature and pressuresensor, allowing the system to automatically calculate the effective flow rate. An additional pressure sensor at the outlet of the venturis is used to maintain a properly working critical venturi system.

Impressive characteristics of the CVS 8000