0222-2-FB-1200

DESCRIPTION

ONICON insertion turbine flow meters are suitable for measuring electrically conductive water-based liquids. The FB-1200 model provides a high-resolution frequency output for flow rate as well as a binary (digital) dry contact output for flow direction for connection to an ONICON display or Btu meter.

APPLICATIONS

• Primary/secondary decoupling loop (bypass)

• HVAC thermal storage tank

• Domestic water tank charge/discharge

GENERAL SPECIFICATIONS

ACCURACY

± 0.5% of reading at calibrated velocity
± 1% of reading from 3 to 30 ft/s (10:1 range)
± 2% of reading from 0.4 to 20 ft/s (50:1 range)

SENSING METHOD

Electronic impedance sensing (non-magnetic and non-photoelectric)

PIPE SIZE RANGE

2½” through 72” nominal diameter SUPPLY VOLTAGE

24 ± 4 V AC/DC at 70 mA LIQUID TEMPERATURE RANGE

Standard: 180° F continuous, 200° F peak High Temp: 280° F continuous, 300° F peak Meters operating above 250° F require 316 SS

construction option
AMBIENT TEMPERATURE RANGE

-5° to 160° F (-20° to 70° C) OPERATING PRESSURE

400 PSI maximum PRESSURE DROP

Less than 1 PSI at 20 ft/s in 2½” pipe, decreasing in larger pipes and lower

velocities
OUTPUT SIGNALS PROVIDED

Directional Contact Output
Isolated solid state dry contact

Contact rating: 100 mA, 50 V
Switch closed when flow is in direction of arrow Latches at 0.18 ft/s
Switches within 20 seconds of direction change

Frequency Output
0 – 15 V peak pulse, typically less than 300 Hz

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CALIBRATION

Every ONICON flow meter is wet calibrated

in a flow laboratory against primary volumetric standards that are directly traceable to N.I.S.T. A certificate of calibration accompanies every meter.

FEATURES

Unmatched Price vs Performance - Custom calibrated, highly accurate instrumentation at very competitive prices.

Excellent Long-term Reliability - Patented electronic sensing is resistant to scale and particulate matter. Low mass turbines with engineered jewel bearing systems provide a mechanical system that virtually does not

wear.

Industry Leading Two-year “No-fault” Warranty -

Reduces start-up costs with extended coverage to include accidental installation damage (miswiring, etc.) Certain exclusions apply. See our complete warranty statement for details.

Installation Flexibility - Patented dual turbine models deliver outstanding accuracy in short

pipe runs.

Simplified Hot Tap Insertion Design - Standard on every insertion flow meter. Allows for insertion and removal by hand without system

shutdown.