Omega FPDM1000 Manuel utilisateur

FPDM1000 SERIES

Positive Displacement

Mechanical Flowmeters

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 bas-

ket type 60 mesh strainer be installed as

close as possible to the inlet side of the

meter. (If required, contact OMEGA for fur-

ther information.)

NOTE: When a strainer is installed it should

be regularly inspected and cleaned.

Failure to keep the strainer clean will

dramatically effect flowmeter perfor-

mance.

To prevent damage to the meter, slowly fill

the system with fluid. This will prevent dam-

age 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.

▲

To the owner:

Thank you for purchasing an OMEGA

FPDM 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 sec-

tions of the manual.

This manual contains connection and op-

erating instructions for the OMEGA FPDM

Series meters with mechanical displays.

This includes the following models:

FPDM1004 FPDM1006

FPDM1005 FPDM1007

The OMEGA FPDM 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 ac-

curacy over a wide range of fluid viscosi-

ties and flowrates are features of the

OMEGA FPDM Series Flowmeter design.

The low pressure drop and high pressure

rating means the OMEGA FPDM Series

Flowmeter is suitable for both gravity and

pump (in-line) applications.

The OMEGA FPDM Series Flowmeters are

available in either Aluminum or 316 Stain-

less Steel. Standard rotors are made from

PPS.

The OMEGA FPDM Series mechanical dis-

plays have a resettable batch totalizer and

non-resettable accumulative totalizer.

IMPORTANT INFORMATION

1. OMEGA recommends that when set-

ting up pipework for meter installations,

a bypass line be included in the de-

sign. This provides the facility for a

meter to be removed for maintenance

without interrupting production. (See

Figure 1)

NOTE: Incorrect installation can cause pre-

mature wear of meter components

7. Do not overtighten meter connections.

8. It is important that after initial installa-

tion you fill the line slowly, high speed

air purge could cause damage to the

rotors.

9. Test the system for leaks.

10. Check the strainer for swarf or foreign

material. After the first 200 litres, check

periodically – particularly if the flowrate

decreases.

2. Use thread sealant on all pipe threads.

3. For pump applications, ensure pipe

work has the appropriate working pres-

sure rating to match the pressure out-

put of the pump.

4. Install a wire mesh strainer (Y or bas-

ket type 60 mesh) as close as possible

to the inlet side of the meter.

5. Ensure that the meter is installed so

that the flow of the liquid is in the di-

rection of the arrows embossed on the

meter body.

6. The meter can be installed in any ori-

entation as long as the meter shafts are

in a horizontal plane. (See Figure 2) The

suit the individual installation.

INSTALLATION

Figure 1

Flow Outlet

Bypass Line

Strainer

Flow Inlet

Figure 2

R I G H T

➧

W R O N G

R I G H T

➧

OPERATION SERVICE INSTRUCTIONS

When fluid passes through the meter, the

rotors turn. The gear located on top of one

of the rotors drives the mechanical regis-

ters gear train which provides an accurate

readout.

Figure 3

Rotor #2

Rotor #1

Rotors must be at 90

to each other

Disassembly:

Ensure that the fluid supply to the meter is

disconnected, and the line pressure is re-

leased before disassembly. Refer to the

exploded parts diagram on page 6.

1. Remove the four screws located on the

face of the register. Then remove the

faceplate cover including register as-

sembly.

2. Remove the four register mounting

screws. Then remove the lower half of

the register housing.

3. Remove the six coverplate screws and

remove the coverplate.

4. Remove the four meter cap screws and

remove the meter cap.

5. Remove rotors.

Reassembly:

1. Clean all components before reassem-

bly.

2. Before reassembly, check the condition

of the rotors. Replace if necessary.

3. Replace the rotor (with the gear) on the

short shaft in the housing. Then place

the second rotor onto the shaft so as

the rotors are at 90 degrees to each

other. (See Figure 3)

Check rotor operation by turning either

of the rotors. If the rotors are not in mesh

correctly or do not move freely, remove

one of the rotors and replace it correctly

at 90 degrees to the other rotor. Recheck

the operation of the rotors.

4. Inspect the gears in the meter cap for

wear. Replace if required - refer to spare

parts on page 6.

5. Replace the O-ring into the groove in

the meter cap. If the O-ring has been

distorted or is damaged in any way, re-

place it with a new part.

6. Replace the meter cap. Make sure the

meter cap and the gear on the rotor

meshes correctly with the gear in the

meter cap. Insert the allen screws and

tighten in the sequence 1, 4, 2 and 3.

7. Inspect the bevel gear, O-ring and out-

put gear for wear or damage. Replace

faulty components if necessary.

8. Replace the output shaft, bush and seal.

Disassembly of output shaft:

a. Remove the bevel gear.

b. Remove the circlip and push out the

output shaft assembly, including the

washer.

c. Remove the seal.

d. Carefully press out the output shaft

bush (if required).

Assembly of output shaft:

a. Carefully press the new output shaft

bush into place. (Use Loctite Primer

7471, as per instructions, followed

by sealant Loctite 262.)

b. Insert a new seal into the groove of

the output shaft bush.

c. Replace the output gear and washer

and replace the circlip to lock the

output gear shaft into place.

d. Replace the bevel gear and tighten

the grub screw onto the flat face of

the shaft.

9. Place the O-ring into the groove in the

meter cap. Replace the O-ring seal if

required.

10. Place the coverplate onto the meter.

Replace the coverplate screws and

tighten the six cap head screws firmly.

11. Place the lower coverplate of the regis-

ter into position. Replace the four screws

and tighten.

12. Position the register correctly on top of

the lower register cover. Replace the four

screws and tighten.

13. Test the meter by turning the rotors with

a finger or by applying low air pressure

(no more than a good breath) to one end

of the meter, before returning meter to

the line.

Symptom Probable Cause Corrective Action

FLUID WILL NOT 1. Foreign matter blocking Dismantle meter, clean rotors. Strainer must

FLOW THROUGH rotors be fitted in-line.

THE METER 2. Line strainer blocked Clean strainer.

3. Damaged rotors Replace rotors. Strainer must be fitted in-line.

4. Meter connections over- Re-adjust connections.

tightened

5. Fluid is too viscous See specifications for maximum viscosity.

REDUCED FLOW 1. Strainer is partially Clean strainer.

THROUGH THE blocked

METER 2. Fluid is too viscous See specifications for maximum viscosity.

METER READING 1. Fluid flowrate is too high See specifications for minimum and maximum

INACCURATE or too low flowrates.

2. Fluid is too viscous Bleed air from system.

3. Excess wear caused by Check meter body and rotors. Replace as

incorrect installation required. Refer to installation instructions.

FLUID FLOWS 1. Bevel gear is loose on Tighten grub screws.

BUT NO READING on shaft

ON METER 2. Rotor drive gear is Replace rotor.

damaged

3. Transmission gears Replace gears.

damaged

4. Register gears damaged Replace register assembly.

FLUID LEAKS 1. Seal worn or damaged Replace seal. Check seal compatibility with

INTO REGISTER on the coverplate fluid.

TROUBLESHOOTING

10 11

13 12

14 15

8 / 9

8A / 9A O-Ring Only

METER PARTS LISTING

Model: FPDM1004

Item Rec. Part or Set

No. Qty. Parts (Order from this column only) Part Description

11 MS298N Meter Body 1/2 in. NPT (Aluminum)

11 MS337N Meter Body 1/2 in. NPT (Stainless Steel)

21 u BS145TES O-Ring (Teflon®)

21 u BS145VS O-Ring (Viton)

32 uMS342MS Rotors PPS (Polyphenylene Sulfide Resins)

32 u MS342MHS High Viscosity Rotors (PPS)

41 MS554S Meter Cap Litres (Aluminum)

41 MS547S Meter Cap US Gallons (Aluminum)

41 MS545S Meter Cap Litres (Stainless Steel)

41 MS546S Meter Cap US Gallons (Stainless Steel)

54 u MS346S Meter Cap Screws (Standard)

54 uMS350S Meter Cap Screws (Stainless Steel)

61 u MS539S Complete Gear Set - Litres

61 u MS541S Complete Gear Set - US Gallons

71 uMS77S Output Gear & Shaft Assembly

81 uMS78S Coverplate Seal / Bush Set Standard

8A 1 u OR42CS Solvent O-Ring (Kalrez)

91 uMS78C Coverplate Seal / Bush Set Solvent

9A 1 u V7-007S O-Ring (Viton)

10 1 u BS145TES O-Ring (Teflon®)

10 1 u BS145VS O-Ring (Viton)

11 1 MS99S Coverplate (Aluminum) includes Bush

11 1 MS99-1S Coverplate (Stainless Steel) includes Bush

12 6 u MS312S Coverplate Screws - Litre Model

12 6 u MS313S Coverplate Screws (S/Steel) - Litre Model

12 6 u MS419S Coverplate Screws - US Gallon Model

12 6 u MS420S Coverplate Screws (S/Steel) - US Gallon Model

*= Parts for US Gallon models only.

u = Recommended Spare Parts to stock.

Bold Text = Indicates Stainless Steel model parts.

SPECIFICATIONS

Mechanical Meter Models

Flow Ranges (LPM or GPM)

Above 5 centipoise 1 to 30 / 0.26 to 8

Below 5 centipoise 3 to 25 / 0.8 to 6.6

Accuracy of Reading ±1%

Maximum Viscosity*1000 Centipoise

Maximum Operating Pressure 3450 kPa / 500 PSI / 34.5 Bar

Operating Temperature Range -10°C to 80°C (+14°F to +176°F)

*Unless high viscosity rotors are fitted.

DIMENSIONS

Item Rec. Part or Set

No. Qty. Parts (Order from this column only) Part Description

13 1 u MS83S Bevel Gear Set

14 1 MS140S Bottom Register Coverplate

15 4 u MS111S Mounting Screws

16 1 u MS141M4GS Register Assembly w/Coverplate - Litres

16 1 u MS141UGS Register Assembly w/Coverplate - US Gallons

17 4 u MS129S Register Body Screws

20 1 u BS145TES O-Ring (Teflon®)

20 1 u BS145VS O-Ring (Viton)

21 1 u MS423S Spacer Ring (Aluminum) US Gallon Model Only

21 1 u MS423-1S Spacer Ring (S/Steel) US Gallon Model Only

METER PARTS LISTING

Item Rec. Part or Set

No. Qty. Parts (Order from this column only) Part Description

11 MS188N Meter Body 1 in. NPT (Aluminum)

11 MS186N Meter Body 1 in. NPT (Stainless Steel)

11 MS188F Meter Body 1 in. ANSI 150 lb. Flange (Aluminum)

11 MS186F Meter Body 1 in. ANSI 150 lb. Flange (S/Steel)

21 u BS235TES O-Ring (Teflon®)

21 u BS235VS O-Ring (Viton)

32 uMS72S Rotors (PPS) with Brass Hub

32 uMS72-1HS High Viscosity Rotors (SS) with S/Steel Hub

32 uMS72-1S Rotors (SS) with S/Steel Hub

32 uMS72-2S Rotors (PPS) with S/Steel Hub

32 uMS72HS High Viscosity Rotors (PPS)

32 u MS72HG-2S High Viscosity Rotors (PPS) with S/Steel Hub

41 MS75S Meter Cap Litres (Aluminum)

41 MS75US Meter Cap Gallons (Aluminum)

41 MS251S Meter Cap Litres (Stainless Steel)

41 MS251US Meter Cap US Gallons (Stainless Steel)

56 u MS114S Meter Cap Screws (Standard)

56 uMS200S Meter Cap Screws (Stainless Steel)

61 u MS294S Complete Gear Set - Litres

61 u MS316S Complete Gear Set - US Gallons

71 uMS77S Output Gear & Shaft Assembly

81 uMS78VS Coverplate Seal / Brush Set (Viton)

8A 1 u OR42C Solvent O-Ring (Kalrez)

91 uMS78C Coverplate Seal / Brush Set Solvent

9A 1 u V7-007S O-Ring (Viton)

10 1 u BS145TES O-Ring (Teflon®)

10 1 u BS145VS O-Ring (Viton)

Model: FPDM1005

10 11 13 12

14 15

8 / 9

8A / 9A O-Ring Only

u = Recommended Spare Parts to stock.

Bold Text = Indicates Stainless Steel model parts.

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