Onicon FB-3500 Series Manuel d'utilisateur télécharger pdf (Page 6)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]

FB-3500 Bi-Directional Insertion Electromagnetic Flow Meter Manual 05/14 - 0718-3 Page 6

1.3 STANDARD FEATURES AND SPECIFICATIONS

Accuracy

± 1.0% of reading from 2 to 20 ft/sec

± 0.02 ft/sec below 2 ft/sec

Sensing Method

Electromagnetic, no moving parts

Pipe Size Range

3” through 72” nominal

Input Power

20 - 28 VAC 50/60 Hz, 250 mA maximum

20 - 28 VDC, 250 mA maximum

Liquid Temperature Range

15° to 250° F

Ambient Temperature Range

-5° to 150° F

Operating Pressure

400 PSI maximum

Pressure Drop

Less than 0.1 psi at 12 ft/s velocity in 3” and larger pipes

Materials of Construction

Wetted metal components - 316L stainless steel

Sensor head - Polypropylene

Electronics enclosure - Powder coat painted cast aluminum

Enclosure Rating

Weathertight, NEMA 4

Electrical Connections

10’ of PVC jacketed cable with ½” NPT conduit connection

OUTPUT SIGNALS PROVIDED

Analog Output (Isolated)

Selectable: 4-20 mA, 0-10 V or 0-5 V

Frequency Output

0 – 15 VDC, 0 – 500 Hz

Pulse/Contact Closure Outputs (four)

Isolated solid state dry contact

Contact maximum ratings: 100 mA, 50 VDC

Scalable Pulse Outputs (two)

Forward & Reverse Flow Totalization

Pulse Duration: 0.5, 1, 2 or 6 seconds

Directional Contact Output:

Switch closed when ow is in direction of ow arrow on enclosure

Latches at 0.2 ft/s

Switches within 20 seconds of direction change

Master Alarm Output:

Switch closed indicates alarm condition

This product is covered by one or more of the following patents: 6,431,011 and 6,463,807.

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Onicon FB-3500 Series Manuel d'utilisateur Page 6

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