Onicon F3500 Series Insertion Electromagnetic Flow Meter

ONICON Incorporated’s F-3500 series insertion electromagnetic flow meters are suitable for measuring electrically conductive liquids in a wide variety of applications. Each F-3500 provides a single analog output for fl ow rate, a high resolution frequency output to drive peripheral devices, a scalable pulse output for totalization, and an empty pipe alarm signal. Two versions of the F-3500 are now available. The standard confi guration F-3500 is suitable for pipe sizes ranging from 3” to 72” in diameter. The small pipe confi guration F-3500 is suitable for pipes ranging in size from 1¼” to 2½” in diameter. Optional remote displays and BTU measurement systems are also available for both versions.

Application

• Accurate, reliable fl ow measurement for HVAC applications
• Ideal for monitoring open loop condenser water flow
• Hot tap design simplifies domestic water retrofit installations
• Cost-effective way to monitor flow in larger pipe sizes
• Suitable for use in water and water/glycol systems

Baca juga: ONICON System-40 BTU Measurement

Specification

Specification

Accuracy		±1.0% of reading from 2 - 20 ft/s
		± 0.02 ft/s below 2 ft/s
Flow Range		0.1 ft/s to 20 ft/s (200:1 turndown)
Sensor Method		Electromagnetic sensor (no moving parts)
Pipe Size Range	Standard Configuration:	3- 72” nominal diameter
	Small Pipe Configuration:	1¼ - 2½” nominal diameter
Input Power		20 - 28 VDC, 250 mA at 24 VDC
		20 - 28 VAC, 60 Hz, 6 VA
Temperature Range		15°F to 250°F
Ambient Temperature Range		-20°F to 150°F
Operating Pressure		400 psi maximum
Pressure Drop	Standard Configuration:	0.1 psi at 12 ft/s in 3” pipe,decreasing as line size increases
	Small Pipe Configuration:	0.33 psi at 8 ft/s in 1.25” pipe,decreasing as the line size increases
Output Signal Provided	Analog Output (Isolated)	Selectable: 4-20 mA, 0-10 V or 0-5 V
	Frequecy Output	0-15 V peak pulse, 0-500 Hz
	Scalable Pulse Output	Isolated solid state dry contact Contact rating: 50 VDC, 100 mA maximum Pulse Duration: 0.5, 1, 2 or 6 second
Material	Wetted metal components:	316 Stainless Steel
	Sensor head:	XAREC
	Optional:	NSF/ANSI 61/372 version
Electronics Enclosure		Weathertight NEMA 4 aluminum enclosure
Electrical Connections		10’ of PVC jacketed cable with ½” NPT conduit connection Dedicated earth wire required 4-wire minimum for power and analog output Additional wires required for pulse, frequency and alarm outputs

Ordering Information

Meter Model Number Coding= F-35AA-BB-CC-DEFG(-SPC) F-35 AA = Insertion Electromagnetic Flow Meter

• 00 = Insertion electromagnetic flow meter

BB = Outputs

• 11 = Frequency, isolated analog, scaled pulse and alarm (dry contacts)
• 12 = Frequency, isolated analog, bi-directional, scaled pulse and alarm (dry contacts)*

CC = Pipe Size Range and Meter Length

• A1 = 1.25 - 2.5” (F-3500 Small Pipe)
• C3 = 3.0 - 10.0”
• D4 = 3.0 - 16.0”
• E5 = 3.0 - 22.0”
• F6 = 3.0 - 72”

D = Process Connection

• 1 = 1” NPT adapter. ⅜” stem

E = Wetted Material

• 1 = 316 SS, XAREC, Viton, Temp < 150°F
• 2 = 316 SS, XAREC, FKM, Temp ≤ 250°F
• 3 = 316 SS, XAREC, EPDM, NSF rated for domestic water

F = Electronics Enclosure

• 1 = NEMA 4 weathertight enclosure

G = Wiring Connection

• 1 = 10’ PVC jacketed cable, pig tail with ½” conduit adapter

SPC = Special Configuration *For 3” and larger pipes
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