ALL PLASTIC ULTRA-LOW FLOW SENSORS
FTB600B Series
U±1% of Reading Accuracy
USix Flow Ranges, from 0.1 to 120 LPM
UNo Flow Straightening Needed
UTurn Down Up to 30:1
UEasily Mounts in Any Position
UHose Barb or Threaded Connections
Principle of Operation
The OMEGA® FTB600B Series Flowmeters feature an infrared, electro-optical transmitter and receiver molded into the flowmeter’s body, along with two miniature circuit boards to provide voltage stabilization and automatic IR output level control. The FTB600B automatically compensates IR light intensity for varying fluid opacity levels to ensure a strong square wave output signal. The flowmeter is suitable for clear, transparent and translucent fluids which must transmit infrared light. (Note: Not suitable for use with red liquids). The design of the FTB600B inherently bleeds off entrained
gas, thereby improving overall accuracy. This flowmeter can be easily mounted into any position for greater system design flexibility, also saving time and installation costs.
A strainer is included in models FTB602B through FTB606B.
SPECIFICATIONS
Accuracy: ±1% of reading
Repeatability: ±0.1% of reading Viscosity Range: 1 to 15 cSt
Working Pressure:
150 psig at 79°C (175°F)
Max Pressure Drop @ Max Flow: @30 psi on all units (6.5 psi on FTB601)
A
Shown larger than actual size.
C
L
Please refer to ordering chart below for specific unit dimensions.
Principle of Operation
1 Fluid first passes through helical nozzle
2 This causes the flow to spiral, rotating in a helical pattern
3 The spiraling fluid hits the flat blade rotor, causing it to spin 4 An infrared, electro-optical transmitter and receiver provide
a square wave electronic output signal
Ambient Temperature: |
Power Supply: 8 to 24 Vdc, 6 to 33 mA |
-40 to 85°C (-40 to 185°F) |
Output Signal: Square wave pulse |
Wetted Parts: PVDF (polyvinyldene |
Cable Length: 0.9 m (3') |
fluoride) FKM O-rings (O-rings are not |
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wetted on NPT units)
To Order Visit omega.com/ftb600 for Pricing and Details
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Flow |
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K Factor |
“-T” Option |
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Dimensions mm (inch) |
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Pulses/ |
NPT |
Length |
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Model No. |
(LPM) |
A |
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L |
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C |
Liter |
Size |
mm (") |
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FTB601B |
0.1 to 2 |
9 (0.35) |
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96 (3.8) |
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6.9 (0.27) |
36000 |
¹⁄ |
39 (1.5) |
FTB602B |
0.3 to 9 |
12 (0.47) |
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112 (4.4) |
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9 (0.35) |
8000 |
¹⁄ |
47 (1.85) |
FTB603B |
0.5 to 15 |
12 (0.47) |
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116 (4.6) |
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12 (0.47) |
3200 |
¹⁄ |
47 (1.85) |
FTB604B |
1 to 30 |
16 (0.63) |
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136 (5.4) |
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16 (0.63) |
1200 |
³⁄ |
63 (2.48) |
FTB605B |
2.5 to 75 |
16.5 (0.65) |
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182 (7.2) |
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19.5 (0.77) |
450 |
1¹⁄ |
80 (3.15) |
FTB606B |
4 to 120 |
16.5 (0.65) |
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183 (7.2) |
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24.5 (0.96) |
225 |
1¹⁄ |
80 (3.15) |
Comes complete with 0.9 m (3') cable, and operator’s manual.
For NPT Threads add suffix “-T” to model number, no additional charge.
Ordering Examples: FTB602B, flowmeter with 0.3 to 9 LPM range. FTB605B-T, flowmeter with 2.5 to 75 LPM range, 11⁄4 NPT fittings.
F-85
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