Omega Products FTB3002 User Manual

POSITIVE DISPLACEMENT FLOWMETERS

FTB3001

$

2972

All Models

⻬ Patented Toothless

Oval Gear Design

⻬ High Accuracy
⻬ Compact Design
⻬ High-Resolution

Electronic Output

⻬ Temperatures to 176°C (350°F)
⻬ Pressure Rated to 3000 psig
⻬ Multiple Bearing Options
⻬ 316 Stainless Steel

Construction

⻬ No Special Gears Needed

for High Viscosity

⻬ Linearity Unaffected by

Viscosity Changes

⻬ 1 MNPT End Fitting
⻬ 150 or 300# Flange

Fittings Available

The oval-shaped smooth gears in
the FTB-3000 Series are used to
displace a precise volume of fluid,
which is passed through the
measurement chamber during each
revolution. The toothless design,
working with the fluid being measured,
provides a complete viscous seal
within the measuring chamber. This
sealing effect provides for greater
flow measurement accuracy.

The displacement of the fluid is
translated via a magnetic or Hall
effect pick-up into a pulse output that
is proportional to the flow.

The unique design of the FTB-3000
oval gear meter incorporates two
smooth (toothless) oval gears
positioned 90 degrees out of phase.
The measurement gears are held
together by two timing gears. The
standard meter contains no seal
between the measurement chamber
and the timing chamber. The timing
gears have a pitch diameter equal
to the outside diameter of the
measurement gears. The flow
through the meter measurement
chamber follows the path of least
resistance. Therefore, no liquid
passes through the center cavity
between the measurement gears.

The fluid is displaced from the inlet
to the outlet via the area between
the smooth oval gear and the inner
diameter of the meter housing.

Conventional oval gears have teeth
that mesh. One of the advantages
of smooth oval gears is that the
viscous flow does not get trapped
or squeezed between the gears.
Typically, oval gears need to have
cuts made in the teeth to allow high
viscosity fluids to pass. These cuts
result in a decrease in accuracy.

Accessories

Comes complete with operator’s manual and 10-point NIST calibration certificate.
To order with flange fittings, consult Flow Engineering.

Ordering Examples: FTB3002, hall effect sensor, $2972.
FTB3001, magnetic pick-up sensor, $2972.

FTB3002, $2972, shown
smaller than actual size.

Toothless Gears
As shown below, the oval-shaped

toothless gears sweep out a
precisely known volume of fluid
passing through the measurement
chamber during each rotation.

AVAILABLE FOR FAST DELIVERY!

To Order

Model No. Price Flow Rate Sensor
FTB3001 $2972 2 to 25 GPM Magnetic pick-up
FTB3002 2972

Model No. Price Description
U24Y101 $169 24 Vdc power supply
CM-0498 100 Reference Book: Viscous Flow

(Specify Model Number)

0.02 to 25 GPM

F-83

Hall effect, 6 to 24 Vdc

FOR HIGH VISCOSITY FLUIDS

151.6
(5.97)

Depending on

Coil Selectd

112.5
(4.43)

177

(7.00)

120.6
(4.75)

1 MNPT
END FITTING
BOTH ENDS

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

0.0

Δ P

258111417

20

23 25

100 cstk 500 cstk 1000 cstk

Flowrate (GPM)

Pressure Drop: DP=Rate* (1.15 + (0.0017) *Viscosity)

Rate = GPM

Viscosity = Centistokes

FTB3000 Δ P vs. Flowrate

GREATER THAN 100 CENTISTOKES

Test Results from Independent Lab

SPECIFICATIONS

Service Fluid: Clean liquids,

max particle size 3.175 mm (0.125")

Accuracy: ±0.25% of reading
Viscosity: 100 cSt or greater
Repeatability: ±0.05%
Operating Temperature:

FTB3001: -240 to 176°C (-400 to 350°F)
FTB3002: -40 to 150°C (-40 to 302°F)

Operating Pressure:

3000 psig standard
Wetted Parts: 316 SS body and

gears with PEEK
Bearings: Shielded, self-lubricating

440 SS ball bearings

Connections: 1 MNPT
Pick Up Coil: Magnetic type or

Hall Effect (6 to 24 Vdc power)
Calibration: Ten-point calibration

traceable to NIST @ 100 centistokes
Weight: 7.53 kg (16.6 lb)

TM

gear seats

F

Dimensions: mm (in)

F-84