More information about how a Flow meter works in this link.
FTB690 Series turbine meters
electronics offers a durable,
compact, high-precision fluid
measurement device, with total and
rate indication. Information is clearly
displayed on a large 6-digit liquid
crystal display with only 2-point
floating decimal for totals from
0.01 to 999,999. All operations are
easily performed with only 2 buttons.
The basic unit and display are
powered by 2 lithium batteries,
providing up to 9000 hours of use.
Automatic "on" and "off" extend
battery life. Manual "on" allows
view of the display on demand.
Cumulative total, batch total,
and rate of flow are standard.
A fifteen-point field calibration
curve can be stored in memory.
The FLSC690-BATT is the
replacement lithium battery for the
display electronics. Batteries
provide 9000 hours of use.
SPECIFICATIONS Accuracy: ±3% rdg Extended Low Flow Range Accuracy: ±5.0% rdg (display models only) Repeatability: ±0.1% Pressure Rating: 150 psig (10.3 bar) Temperatures: Operational: 0 to 60°C (32 to 140°F) Storage: -40 to 70°C (-40 to 158°F) Viscosity: Rated accuracy for fluids with viscosity of water (1 centistoke); meters with display can be used for fluids up to 100 centistokes with field calibration Pulse Output (Option): Open collector sinking, 9 to 35 Vdc Wetted Components: Housing: PVC Journal Bearings: Ceramic (96% alumina) Shaft: Tungsten carbide Rotor and Supports: PVDF Retaining Rings: 316 SS Display: 6-digit LCD, flow rate, batch and cumulative total Power: Two 3V lithium batteries (included) Battery Life: 4000 hrs
† All amounts shown in EUR, GBP, or USD Note: Comes with 2 lithium batteries and operator's manual. For models with a pulse output model in place of a display add -P to the model number, no additional cost.
FTB691A through FTB695A - Electronic Water Meters