Product Announcement from Uehling Instrument Company
Two types of ("O") Tank-O-Meter® gauges are available for open tanks (100% Vented to Atmosphere) containing hot water, hot plating solutions, acids and similar liquids.
These applications require a continuous purge system to avoid condensation of vapors in air lines. A minimum of 3/8" air Line between the Tank-O-Meter® gauge and the tank is required. An overpressure trap and extended well are supplied as standard equipment. Continous air purge consumption is approximately .5 SCFH.
Gauges with Bubbling Bottles (add "OLTE" to Model No.) are used with general plant air systems. The bubbling bottle oil serves as an indication of the purge rate in addition to removing dirt and moisture from air entering the system. When plant air has particularly high moisture and dirt content, a combination Air Filter/Regulator/Condensate Trap may additionally be required upstream from the Bubbling Bottle.
Gauges with a Tel-Flo meter (add "NOTE" to Model No.) are designed for instrument air or inert gas systems. Clean dry air, instrument air, or inert gas is used where the tank content purity must be maintained. A combination Air Filter/Regulator/Condensate Trap may optionally be required.