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Low-FLow Liquid FLowmeters
Low-FLow Liquid FLowmeters
FTB4705 shown
smaller than
actual size.
FTB4805 shown
smaller than
actual size.
FTB4700 Series
U Square-Wave Output
U One Moving Part
U Rugged, Nickel-Plated
Brass Body or 316 SS
The FTB4700 Series comprises
plated brass meters that are ideal
for water applications, with ranges
from 0.2 to 18 GPM. The FTB4800
covers a wide flow range and is
housed in a rugged stainless steel
package. Single-jet simplicity,
combined with high-quality jewel
bearings, results in long life and
relatively high tolerance to harsh
fluids. Typical applications include
chemical batching, proportional
chemical injection, fertilizer injection,
proportioning of spray chemicals,
and general flow rate monitoring.
The FTB4700 is available with
1
3
and
⁄
2
meter couplings. The FTB4800 is
available with
A square-wave output makes these
meters ideal for many OEM control
applications. This signal interfaces
easily with programmable logic
controllers and computer input
boards. The FTB4700 or FTB4800
Series meters can be combined
with the DPF701-A panel flow
meter for reading flow rate or total
flow, with 4 to 20 mA output.
" threads, with union-type
⁄
4
1
3
,
and 1" threads.
⁄
⁄
2
4
Cable:
SPECIFICATIONS
Accuracy: ±1% FS
Maximum Temperature:
FTB4700: 85°C (185°F)
FTB4800: 93°C (200°F)
Maximum Pressure:
FTB4700: 12 bar (175 psi)
FTB4800: 35 bar (500 psi)
Output: Squarewave
Power:
FTB4700: 5 to 30 Vdc
FTB4800: 6 to 24 Vdc
Maximum Current: 20 mA
FTB4700: #22 AWG 3-conductor,
3.7 m (12')
FTB4800: #22 AWG 3-conductor,
5.5 m (18')
Maximum Cable Run: 610 m (2000')
Maximum Pressure Drop: 15 psig
Dimensions: mm (inch)
Model No. Overall Length Height Width
FTB4705 254 (10.0) 40 (1.56) 69 (2.7)
FTB4707 259 (10.2) 40 (1.56) 69 (2.7)
FTB4805 104 (4.1) 51 (2.0) 51 (2.0)
FTB4807 104 (4.1) 51 (2.0) 51 (2.0)
FTB4810 127 (5.0) 51 (2.0) 51 (2.0)
Materials
FTB4700 FTB4800
Body Nickel-plated brass 316 SS
Rotor Chamber Brass Rotor cover: 316 SS
Rotor Thermoplastic PVDF
Shaft Tungsten carbide Nickel-bonded tungsten carbide
Bearings Water cooled thermoplastic Ruby ring and ball
O-Ring – TFE-coated FKM
To Order
K Factor
Model No. (Pulses/Gal) Description
FTB4705 550 ¹⁄₂ MNPT, 0.2 to 10 GPM
FTB4707 330 ³⁄₄ MNPT, 0.2 to 18 GPM
FTB4805 535 ¹⁄₂ FNPT, 0.1 to 10 GPM, 316 SS body
FTB4807 390 ³⁄₄ FNPT, 0.2 to 15 GPM, 316 SS body
FTB4810 220 1 FNPT, 0.5 to 25 GPM, 316 SS body
Accessories
Model No. Description
DPF701 ¹⁄₈" DIN panel meter, visit omega.com/dpf700 for more details
FTB4700 Series comes complete with 3.7 m (12') cable with 2 NPT couplings and operator’s
manual. FTB4800 Series comes complete with 5.5 m (18') sensor cable and operator’s manual.
Ordering Examples: FTB4705, 0.2 to 10 GPM.
FTB4807, 0.2 to 15 GPM, DPF701, panel meter.
F-73
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