There are many applications where the accurate, repeatable measurement of gas density is essential. From blending of fuel, to product quality, to Hydrogen purity and replacement in utility turbines, Yokogawa’s family of Gas Density products allow you to make accurate measurements with superior reliability and ease of maintenance and operability.
The Model GD402 gas density analyzer and Model GD40 detector not only provide continuous measurement of gas density, but also several other valuable parameters, including specific gravity and molecular weight. The GD40 detector is designed for intrinsically safe and flameproof, explosion protected applications. It is designed to be virtually maintenance free for all accepted applications.
The Model GD402 is a rugged microprocessor-based converter designed in two versions to meet both general area and explosion-proof application requirements. In addition to the display of several key data items, the converter also provides the choice of three different means for calibration: automatic; semi-automatic and one-touch manual operation.
- Proven Design
- Many detector features
- Simple, user-friendly interface
- Low installation cost
As the sample reaches the second stage, it is directed through a transition piece which channels the air evenly across two active cooling elements. The cooling elements provide 360 degree contact between sample and coolant.
As the cooling takes place, condensate and Heavy Hydrocarbons removed from the sample are gravity fed back through the reflux section, washing the sample inlet of particulate and other fouling compounds.
Temperature is tightly controlled with a single point temperature measurement fed to a controller which cycles the two active cooling elements.
- GD402/GD40 Hydrogen Purity Monitor (1.7 MB)
- GD40G, GD40R, GD40T, GD40V, GD402G, GD402R, GD402T, GD402V, GDW Protection of Environment (Use in China) (183 KB)
- GD40 Gas Density Meter (8.2 MB)
- Hydrogen Purity Sample Panel (263 KB)
- Gas Density Meter (842 KB)
- Gas Density Meter Detector (59 KB)
Yokogawa Technical Reports
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