Flomec D-40 Instruction Manual Download | Manualshive

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I N S T R U C T I O N M A N U A L

Model:

1/2” (D-40)

Medium Capacity positive displacement

Pulse flowmeters

OVAL GEAR

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Summary of Contents for D-40

Page 1: ...I N S T R U C T I O N M A N U A L Model 1 2 D 40 Medium Capacity positive displacement Pulse flowmeters OVAL GEAR ...

Page 2: ...ectrical Installation 5 2 2 1 Instrument Cable 6 2 2 2 Hazardous Area Wiring 6 2 3 Pulse output selection for pulse meters 6 2 3 1 Hall effect sensor output 6 2 3 2 Reed switch output 6 2 4 Calibration K factor 6 3 0 Commissioning 7 4 0 Maintenance 4 0 Maintenance 8 4 1 Disassembly of meter exploded view 8 4 2 Inspection 9 4 3 Re assembly of meter 9 4 4 Spare parts list 10 5 0 Fault Finding 11 5 1...

Page 3: ...ar are positive displacement flowmeters where the passage of liquid causes two oval geared rotors to rotate within a precision measuring chamber and with each rotation a fixed volume of liquid is displaced passing through the meter Magnets embedded within the rotors initiate a high resolution pulse train output The pulse output can be wired directly to process control and monitoring equipment or c...

Page 4: ...otection Class IP66 67 Display flowrate total accumulative resettable Recommended filter 150microns 100mesh Electrical Nominal output resolution pulses per litre pulses per gallon Nominal Hall Effect E register only 168 636 Reed 84 31 8 Reed switch output 30vDC x 200mA max Hall Effect output NPN 3 wire open collector 5 24vDC 20mA max Maximum flow is to be reduced as viscosity increases see flow de...

Page 5: ...adings or damage the meter on start up Process or safety critical meters should be installed in a by pass section of pipe with isolation valves to enable the meter to be isolated and serviced as required A by pass installation also allows purging of the system during commissioning see Commissioning The meter must be appropriately rated and is typically located downstream on the discharge side of t...

Page 6: ...ion thus there is no markings for inlet or outlet 2 2 Electrical Installation As a default the meter and totalizer is wired at the factory with the reed output pre wired and DIP switches set for an integral rate totaliser allowing self powered operation of the instrument displays The output s and function s available from a meter fitted with an integral instrument depend on the model of the instru...

Page 7: ...es of output are available on each meter open collector from Hall Effect sensors or reed switch contact unless it is intrinsically safe in which case only the reed switch pulse is available Each output type is linearly proportional to volumetric flow and each pulse is representative of an equal volume of liquid 2 3 1 Hall Effect Sensor Pulse Output The Hall Effect Sensor is a high resolution solid...

Page 8: ... the meter rotors must be removed prior to flushing refer to Maintenance section of this manual for disassembly After flushing or following long periods of shutdown the meter must be purged of air vapour This can be achieved by allowing the liquid to flow through the meter at a slow rate until all air vapor is displaced Never run the meter above its maximum flow or exceed 100kpa 1 bar 15psi pressu...

Page 9: ...stream The meter is depressurized and liquid drained from the meter 4 1 Disassembly of Pulse meter Refer Exploded View The meter is fitted with an integral instrument the instrument display assembly must be removed if required to gain access to the instrument terminal connections instrument battery or pulse output board This is achieved by 1 Undo the bezel screws and separate the display assembly ...

Page 10: ...if fitted precisely at an orientation of 90 degrees to each other Rotate the rotors slowly by hand to ensure they are correctly fitted at the same time check the rotor shafts rotor bearings for wear Fit the O ring 3 into the groove and assemble the two parts of the meter the body 1 cap 4 align with a location pin Fit the body cap screws 5 and tighten in a star sequence then carryout a final tighte...

Page 11: ...inless steel socket head M6X16 SHCS 304 SS 9 Pulse output board E and I Registers Intrinsically safe pulse board I Registers 1412193 Standard pulse board E Registers 1412172 10 Output board screw E and I Registers Stainless steel 2 per meter M3X4CHHD SCREW304SS 11 Flange portion O ring O ring size Flange portion O ring 12 Flange portion screws 8 per meter Threaded portions Flanged portions 13 Flan...

Page 12: ...sed by foreign particles such as weld slag sealing tape or compound rust etc Step 3 Ensure flow is present No flow or lower than normal minimum flow may be attributed to a blocked strainer jammed or damaged rotors within the flowmeter malfunctioning pump closed valves or low liquid level in feeder tank Step 4 Ensure oval gears within meter are rotating Rotation of the oval gears can be heard by ho...

Page 13: ...ations w ires for continuity 1 Rotors fouled 1 Check that rounded teeth are tow ards base of chamber 2 Check for obstruction due to foreign particles 3 Clean repair or replace rotors 2 1 See instructions for reassembly of meter w ith particular emphasis on positioning of rotors magnets 3 1 Check terminal connections solder joints 2 Ensure dc voltage is available at Vdc 0V and receiving instrument ...

Page 14: ...Notes ...

Page 15: ...rated on mineral oil and will contain a small amount of oil residue The oil used is Castrol Diesel Calibration Fluid 4113 product code 055830 2017 Great Plains Industries Inc All Rights Reserved Great Plains Industries Inc 888 996 3837 FLOMEC net ...

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