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GENERAL INFORMATION
These versatile impeller flowmeters are available in 3/8",
1/2", 3/4", and 1" nominal pipe sizes with female NPT
threads (SAE optional). They employ jewel bearings to allow
for very low minimum flow rates and superior life.
With a body material of polypropylene, the FPR300 is an
economical choice for metering water or low corrosion fluids.
The lens cover is available in a choice of materials: acrylic
for visual flow indication of low-corrosive fluids; polypropylene
when more corrosion resistance is needed. The standard ro-
tor assembly is Kynar with tungsten carbide shaft (ceramic
shaft optional). The O-ring is EPDM.
The FPR310 offers greater chemical resistance with a TFE
body and cover, TFE-coated Viton O-ring, and standard Kynar/
ceramic rotor assembly (silicon carbide shaft optional).
The pulse output of these meters is compatible with many
FEATURES
Thread-in Sensor, Field Replaceable,
6-24 Vdc pulse
18' Sensor Cable
Removable Lens Assembly
Standard Acrylic Top (FPR300)
Hex Screws
Female NPT Threads (SAE optional)
(Internal)
Jewel bearings
Kynar/Carbide or Kynar/Ceramic Rotor Assembly
EPDM (FPR300) or TFE-coated Viton (FPR310) O-ring
SPECIFICATIONS
Connection Ports
Sensor Cable
Materials
Body
Rotor
Shaft
O-Ring
Bearings
Cover
Maximum Temperature
Maximum Pressure
Accuracy
Power
Outputs
FPR300
3/8", 1/2", 3/4", 1", Female NPT thread
(SAE optional)
18 feet standard (maximum cable run 2000 ft.)
Polypropylene
PVDF (Kynar)
Nickel tungsten carbide (zirconia ceramic optional)
EPDM (Kalrez or TFE-coated Viton optional)
Ruby ring and ball
Acrylic (Polypro optional)
160˚ F (70˚ C)
150 PSI (10 bar)
+1% of full scale
5-24 Vdc, 2 mA min
Current sinking pulse, 6-24 Vdc
different types of controls, including a full range of Omega rate
displays and controls. The Omega DPF75-A provides flow rate
and total flow indication, with 4-20 mA ouput capability.
FLOW RANGE
*K-Factor
Model #
(Pulses/Gal)
FPR300
FPR310
1417
1394
FPR301/311
658
634
FPR302/312
468
476
FPR303/313
254
250
FPR304/314
*Nominal K-factors (based on averages) for standard 2-magnet FPR310 and
FPR300. High resolution (6-magnet) K-factors are approximately tripled.
FPR310
3/8", 1/2", 3/4", 1", Female NPT thread
(SAE optional)
18 feet standard (maximum cable run 2000 ft.)
TFE
PVDF (Kynar)
Zirconia ceramic (silicon carbide optional)
TFE-coated Viton (EPDM or Kalrez optional)
Ruby ring and ball
TFE
160˚ F (70˚ C)
150 PSI (10 bar)
+1% of full scale
5-24 Vdc, 2 mA min
Current sinking pulse, 6-24 Vdc
Gal/Min
Liter/Min
0.07-5
0.27-18.9
0.1-10
0.38-37.9
0.2-20
0.75-75
0.5-40
1.9-150
FPR300
shown
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