FB-1200 Series FB-1200 Series Bi-directional Dual Turbine Flow Meters are suitable for pipe sizes ranging from 2½" to 72". Bi-directional dual turbine meters accurately measure flow in both directions and provide an isolated contact closure output to indicate flow direction. Standard Features Highly Accurate NIST traceable factory calibration performed on every meter, within ±0.5% of reading accuracy at the calibrated (typical) flow velocity and within ± 1 - 2% of reading over a 50:1 flow range. ONICON's price vs. performance is unmatched. Unequaled Operating Range Provides repeatable flow data over a 175:1 turndown from 0.17 to 30 ft/s. Excellent Long-Term Reliability Patented non-magnetic impedance sensing method, low mass non-metallic turbines with sapphire jewel bearings and tungsten carbide shafts provide a mechanical system that virtually does not wear. Simplified Hot Tap Insertion Design Integral HOT-TAP design is standard for all insertion meters and allows installation and removal without system shutdown. Meters can be removed and reinserted by hand without special tools. Integral Conditioned Outputs Electronics enclosure includes integral conditioned output circuitry for ease of installation. Analog output models include both 4-20 mA and 0-10 VDC signals. Isolated-analog, dry contact switch and frequency outputs are also available.
Typical Applications ONICON FB-1200 Series bi-directional insertion type flow meters are designed to work in pipe sizes ranging from 2½" to 72" in diameter. The FB-1200 series bi-directional flow meters, with their build-in flow direction switch, are ideal for primary/secondary decoupled (bypass) loops, stratified thermal storage tanks and municipal water storage tank charge/discharge lines. FB-1200 Series Product Selection Guide Model Number Description Product Information (Must have Adobe Reader 4.0 to view files) Get Acrobat Reader here To download file, right-click on the link and select "Save Target As..." FB-1200 Bi-directional insertion turbine flow meter with frequency output - provides a high-resolution frequency output for flow rate and a binary/digital output for flow direction for connection to an ONICON Display or BTU Meter Catalog Sheet (.PDF,  271KB) FB-1210 Bi-directional insertion turbine flow meter with analog output - provides 4-20 mA & 0-10 V analog outputs for flow rate and a binary/digital output for flow direction  Catalog Sheet (.PDF,  273KB) FB-1211 Bi-directional insertion turbine flow meter with isolated  analog output - provides isolated 4-20 mA & 0-10 V analog outputs for flow rate and a binary/digital output for flow direction   Catalog Sheet (.PDF,  271KB) FB-1220 Bi-directional insertion turbine flow meter with divided output - provides two conditioned binary/digital output signals corresponding to flow rate and flow direction   Catalog Sheet (.PDF,  271KB) FB-1230 Bi-directional insertion turbine flow meter with scaled output - provides two scaled binary/digital outputs for flow totalization and flow direction Catalog Sheet (.PDF,  272KB) DB-1200 Series Display Module Series for FB-1200 Series Flow Meters Catalog Sheet (.PDF, 145KB) Ordering Information for ONICON Insertion Meters