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ONICON’s FB-3500 series bi-directional insertion electromagnetic ﬂow meters are suitable for measuring electrically conductive liquids in a wide variety of applications. Each FB-3500 provides a single analog output for ﬂow rate, a high resolution frequency output to drive peripheral devices, two scalable pulse outputs for totalization, a contact closure output for ﬂow direction and an empty pipe alarm signal. Optional remote displays and BTU measurement systems are also available.
Exceptional Performance & Value - FB-3500 series insertion style electromagnetic ﬂow meters provide a degree of accuracy and reliability normally only found in expensive full bore devices. By combining this level of performance with the cost effective nature of the insertion style design, ONICON has produced a product of exceptional value.
Excellent Long Term Reliability - ONICON insertion style electromagnetic ﬂow meters employ a low maintenance, non-moving parts technology to sense ﬂow. State-of-the-art electronics and patented design features help maintain accuracy over time.
Proprietary Design Advantage - FB-3500 insertion electromagnetic ﬂow meters utilize patented design features that signiﬁcantly enhance performance. The dual-electrode design and continuous auto-zero function combine to improve accuracy and sensitivity — particularly at low ﬂow rates.
Simpliﬁed Hot Tap Insertion Design -
Standard on every insertion ﬂow meter, this feature allows for insertion and removal by hand, without a system shutdown.
• Primary/secondary decoupling loop (bypass)
• HVAC thermal storage tank
• Domestic water charge/discharge
• Bi-directional process ﬂow
Every ONICON ﬂow meter is wet calibrated
in a ﬂow laboratory against standards that are directly traceable to N.I.S.T. A certiﬁcate of calibration accompanies every meter.
± 1.0% of reading from 2 to 20 ft/sec ± 0.02 ft/sec below 2 ft/sec
0.1 ft/s to 20 ft/s (200:1 turndown) SENSING METHOD
Electromagnetic sensing (no moving parts) CONDUCTIVITY RANGE
20 to 60,000 µSiemens/cm PIPE SIZE RANGE
3” through 72” nominal diameter INPUT POWER
20 – 28 VDC, 250mA @ 24 VDC 20 – 28 VAC 60 Hz, 6 VA
LIQUID TEMPERATURE RANGE
15° to 250° F
AMBIENT TEMPERATURE RANGE
-20° to 150° F OPERATING PRESSURE
400 PSI maximum PRESSURE DROP
Less than 0.1 psi at 12 ft/s velocity in 3” and
OUTPUT SIGNALS PROVIDED
Analog Output (Isolated)
Selectable: 4-20 mA, 0-10 V or 0-5 V
0 – 15 Volt peak pulse, 0 – 500Hz
Pulse/Contact Closure Outputs (four)
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