Oxygen is a colorless, odorless, and tasteless gas with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements and other compounds.
At large municipal wastewater treatment plants, deodorizing aeration basins may be required. Deodorizing is achieved by blending a controlled quantity of a fragrancing agent with oxygen. The fragrance-infused oxygen is then injected directly into the aeration basins as a deodorant, which minimizes the effect on nearby communities. Thermal mass flow meters provide an accurate, real-time measurement of the mass flow rate of oxygen. Therefore, the dosage of the fragrancing agent is controlled. Oxygen furnaces also require analysis to improve combustion control.
For combustion control, Sage Metering provides both easy-to-install insertion thermal mass flow meters and inline thermal mass flow meters, with built-in flow conditioners that monitor the air and fuel flow rates to the burner. These direct mass flow meters do not require separate temperature or pressure transmitters, have no moving parts, are highly accurate and repeatable, and have negligible pressure drop. Sage thermal mass meters have extraordinary rangeability of at least 100 to 1, as well as the fast response necessary for proper combustion control.
In addition to the 4 – 20 mA control output of flow rate, the meters also provide pulsed consumption outputs in conjunction with fully Modbus-compliant RS485 RTU communications. The meters also feature bright graphical displays of flow rate, totalized flow, gas temperature, and continuous diagnostics. For challenging-to-reach burner lines or locations with extreme radiant heat, Sage also offers a remote-style flow meter with up to 1000 feet of lead length compensated cable – all electronics and power are at the transmitter – thus, the probe, or flow body, simply has a terminal junction box.