Thank you for purchasing an OMEGA FPD
Series Flowmeter. Please take a few minutes to read through the manual before installing and operating your meter. If you
have any problems with the meter, refer to
the Maintenance and Troubleshooting sections of the manual.
This manual contains connection and operating instructions for the OMEGA FPD
Series meters with pulse outputs. This includes the following models:
FPD1202-HPFPD1203-HP
The OMEGA FPD Series flowmeter has incorporated the oval rotor principal into its
design. This has proven to be a reliable and
highly accurate method of measuring flow.
Exceptional repeatability and high accuracy
over a wide range of fluid viscosities and
flowrates are features of the OMEGA FPD
Series flowmeter design. With low pressure
drop and high pressure rating, means the
OMEGA FPD Series flowmeters are suitable for both gravity and pump (in-line) applications.
INSTALLATION
1. Use thread sealant on all pipe threads.
2. Ensure the meter is installed so that
rotor shafts are always in a horizontal
plane (See Figure 1). Flow is bi-directional.
Figure 1
DO NOT install
meter this way.
3. OMEGA recommends use of flexible
connections.
4. Extreme care must be taken when installing the meter. Pipe strain or overtightening meter connections can
cause meter damage.
PULSER DETAILS
IMPORTANT INFORMATION
Please read this information
!
▲
carefully before use!
Before use, confirm the fluid to be used is
compatible with the meter or consult with
OMEGA for advice.
To prevent damage from dirt or foreign
matter, OMEGA recommends a Y or basket type 200 mesh strainer be installed as
close as possible to the inlet side of the
meter. (If required, contact OMEGA for further information.)
To prevent damage to the meter, slowly fill
the system with fluid. This will prevent damage caused by air purge.
NOTE: Failure to do this could damage the
meter.
For pump applications, turn off the pump
at the end of each day.
Hall Effect Sensor Specifications
•4.5 V to 24 V (4.6 - 9 mA) operation
needs only an unregulated supply.
•Open collector 25 mA output NPN
(Current Sink) compatible with digital
logic.
•Reverse battery precaution.
Figure 2
Supply
Signal
Ground
12 3
Hall Effect Sensor Wiring Details
V
cc
(HP Models Only)
X
1
Page 4
Reed Relay Specifications
•Two wire SPST N/O.
•Switching voltage 150 VDC; maximum
current 0.25 Amps.
•Rating 3 watts.
•Duty cycle 20% ON, 80% OFF.
Figure 3
12
Reed Switch Wiring Details
(HP Models Only)
MAINTENANCE
Disassembly:
1. Ensure the fluid supply to the meter has
been disconnected, and the line pressure has been released before disassembly.
2. Remove the four screws and remove the
pulser cap.
3. Remove the gasket.
4. Remove eight screws and remove the
meter cap.
5. Remove O-ring and inspect. Replace Oring if damaged.
6. Remove rotors, clean and inspect. Replace rotors if damaged.
7. To remove the PCB, remove the two
screws.
NOTE: Reed Switch PCB’s cannot be re-
moved.
Reassembly:
1. Replace rotors into the meter body. The
rotors should be at 90 degrees to each
other.
2. Lightly rotate the rotors by hand. They
must rotate freely.
3. Install O-ring.
4. Replace the meter cap and tighten the
eight screws uniformly to 35Nm (25 Ft.
Lbs.).
5. Replace the pulser cap and tighten the
four screws.
2
Page 5
TROUBLESHOOTING
SymptomProbable CauseCorrective Action
FLUID WILL NOT1. Foreign matter blockingDismantle meter, clean rotors. Strainer must
FLOW THROUGHrotorsbe fitted in-line.
THE METER
REDUCED FLOW1. Line strainer partiallyClean strainer.
THROUGH THEblocked
METER
METER READING1. Fluid flowrate is too lowSee specifications for minimum and
INACCURATEor too highmaximum flowrates.
METER NOT1. Faulty Hall Effect sensorReplace meter cap for Reed Switch models,
GIVING A PULSEor Reed Switchreplace PCB for Hall Effect models.
SIGNAL
2. Line strainer blockedClean strainer.
3. Damaged rotorsReplace rotors. Strainer must be fitted in-line.
4. Meter connections over-Re-adjust connections.
tightened
2. Fluid is too viscousMaximum viscosity 1000 centipoise.
2. Air in fluid.Bleed air from system.
3. Excess wear caused byCheck meter for damage. Install correctly.
incorrect installation
2. Faulty magnetReplace rotors.
3
Page 6
DISPLAY PARTS LISTING
3
Model: FPD1202-HP
4
TERMINAL
BLOCK
2
7
1
u = Recommended Spare Parts to stock.
Bold Text = Indicates Stainless Steel model parts.
ItemRec.Part or Set
No.Qty.Parts (Order from this column only)Part Description
11MS1NSMeter Body Assembly NPT
28 uMS367SBolt Set - Socket Head
31MS170HPulser Cap (BSP)
31MS170HNPulser Cap (NPT)
44 uMS115SBolt Set - Socket Head
61MS3HESMeter Cap & Hall Effect Assembly
61MS3HPSMeter Cap & Reed Switch Assembly
72 uMS6-1SRotor Set (Stainless Steel)
Reed Switch & Hall Effect are unavailable without meter cap.
*
4
Page 7
SPECIFICATIONS
Pulse Meter Models
Flow Ranges (LPM or GPM)
Above 5 centipoise2 to 100 / 0.53 to 26.4
Below 5 centipoise5 to 100 / 1.32 to 26.4
Accuracy of Reading± 1%
Maximum Viscosity1000 Centipoise
Maximum Operating Pressure55160 kPa / 8000 PSI / 551 Bar
Maximum Operating Temperature120°C / 248°F
Pulse TypeHall Effect Sensor / Reed Switch
Pulses per Litre/Gallons1000 / 3785
Meter Dimensions86mm Dia. / 3.4” Dia. (Meter Body)
83mm / 3.25” (Port Face to Face)
Weight3.3 kg / 116 oz.
5
Page 8
DISPLAY PARTS LISTING
3
Model: FPD1203-HP
4
TERMINAL
9
BLOCK
10
2
7
1
u = Recommended Spare Parts to stock.
Bold Text = Indicates Stainless Steel model parts.
ItemRec.Part or Set
No.Qty.Parts(Order from this column only)Part Description
11MS2NSMeter Body Assembly NPT
28 uMS367SBolt Set - Socket Head
31MS170HPulser Cap (BSP)
31MS170HNPulser Cap (NPT)
44 uMS115SBolt Set - Socket Head
61MS3HESMeter Cap & Hall Effect Assembly
61MS3HPSMeter Cap & Reed Switch Assembly
72 uMS7-1ESRotor Set (S/Steel) - Hall Effect
72 uMS7-1RSRotor Set (S/Steel) - Reed Switch
72 uMS7-1HESRotor Set (S/Steel) - Hall Effect, High Visc.
72 uMS7-1HRSRotor Set (S/Steel) - Reed Switch, High Visc.