The Model C-LB45-A turbine flow meter is designed to withstand the rigorous demands of the most remote flow measurement applications. The Model C-LB45-A flow meter maintains measurement accuracy and mechanical integrity in expeditionary environments from the Arctic to the desert or tropical regions of the world. This flow meter has been fitted with a protective roll cage and cam lock fittings for service as a tactical fuels flow meter with ±0.5% volumetric accuracy. This meter is intended for use with Jet A, Jet A1, JP 5, JP8, DF1, DF2, and DF4 fuels.
Models
The tactical fuels flow meter comes in three sizes for use with 2", 4" and 6" fuel lines.
C-LB45-A006-MIL (NSN 6680-01-534-0892)
This meter has 2" cam lock fittings and a flow rate of 5 to 250 GPM. The unit weighs 20 pounds and measures 20x14x14 inches (LxWxH). The unit is equipped with a single display and a reset key.
C-LB45-A009-MIL (NSN 6680-01-534-0890)
This meter has 4" cam lock fittings and a flow rate of 50 to 900 GPM. The unit weighs 43 pounds and measures 27x17x12 inches (LxWxH). The unit is equipped with a dual display and a single reset key (one display cannot be reset).
C-LB45-A010-MIL (NSN 6680-01-534-1128)
This meter has 6" cam lock fittings and a flow rate of 50 to 900 GPM. The unit weighs 73 pounds and measures 23x26.5x31.5 inches (LxWxH). The unit is equipped with a dual display and a single reset key (one display cannot be reset).
Only four tools are required to service the C-LB45-A: a small Phillips head screwdriver, a small flat blade screwdriver, a pair of pliers, and a 7/16" wrench.
As the tactical fuels flow meter was designed to be field transportable, it requires very little in the way of packaging. A roll cage protects the unit from most damage that could occur from being dropped. It is important to protect the electronic monitor(s) from being impacted from either the top or the sides.
Operating Principle
Fluid entering the meter passes through the inlet flow straightener which reduces its turbulent flow pattern and improves the fluid's velocity profile. Fluid then passes through the turbine blades causing them to rotate at a speed proportional to the fluid velocity. As each blade passes through the magnetic field created at the base of the pickoff transducer, AC voltage (pulse) is generated in the pickup coil. These impulses produce an output frequency proportional to the volumetric flow through the meter. The output frequency is then used to indicate flow rate and/or totalization of fluid passing through the turbine flow meter on the display(s).
