Filter
Top Products
2 Micro Motion 3098 Gas Specific Gravity Meter
Introduction
1.2 Specific gravity measurement
Most major gas flow metering systems require the metered quantity to be presented in heat or
standard volume units. To achieve this requirement, it is often necessary to make continuous and
accurate measurements of specific gravity. Specific gravity can be evaluated by relating the molecular
weight of the gas (or gas mixture) to that of the molecular weight of air, or by evaluating the relative
density of the gas (or gas mixture) and compensating the result for the Boyle’s Law deviation on both
the gas (or gas mixture) and the air.
The 3098 specific gravity meter adopts a combination of these two methods, where, by measuring the
density of the gas under controlled conditions, the value of density obtained is directly related to the
molecular weight of the gas, and thus to its specific gravity.
Figure 1-1 View of the 3098 specific gravity meter installed in a typical enclosure