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AquaProbe FEA100 / FEA200

Electromagnetic flowmeter

30

OI/FEA100/200–EN Rev. D 

A.2.3 Dual Entry Point Method

Refer to Section 3.6, page 15 and fit a second mounting boss directly opposite the one already fitted.

1.

Insert the flow sensor to a depth of 

1

/

8

 the pipe diameter through the original mounting boss.

2.

Calculate the insertion factor.

3.

Refer to the relevant user guide* and enter a Insertion Factor of value equal to F

i

.

4.

Record the flow velocity reading.

5.

Insert the flow sensor to a depth of 

1

/

8

 the pipe diameter through the second mounting boss.

6.

Record the flow velocity reading.

7.

Calculate the ratio of the two values recorded

– if the calculated ratio is between 0.95 and 1.05, the flow profile is acceptable and the procedure

detailed in Section 5.2, page 22 can be used

or

– if the calculated ratio is 

not

 between 0.95 and 1.05, re-site the flow sensor for optimum accuracy

*WaterMaster FET1 (OI/FET100-EN) or AquaMaster3 FET2 (OI/FET200-EN)

A.3 Full Velocity Profile

For installations with very poor and asymmetric velocity profiles (for example as rejected in Section A.2.2,
page 29) a full velocity profile provides an improved accuracy of reading. To facilitate this ABB have
developed 

ScrewDriver

 software for the PC that calculates F

i

 and F

p

 for any measured velocity profile – see

IM/SDR section 'ABB Flow Profiling'.

Note.

Due to software configuration, all calculations are in metric units. Therefore if using an imperial 

pipe, the diameter 

MUST

 be converted into millimeters (1 in = 25.4 mm, for example, a 36 in. pipe = 914 

mm).

F

i

1

12.09

D

---------------

1.3042

D

------------------

+

+

=

Содержание AquaProbe FEA100

Страница 1: ...rk analysis and in permanent locations where cost or space limitations preclude the use of conventional closed pipe meters This User Guide provides installation connection security start up and basic setup details for the flow sensor only The AquaProbe sensor is available for operation with either a WaterMaster transmitter FET100 or an AquaMaster3 transmitter FET200 For more information Further pu...

Страница 2: ...rogramming Guide WaterMaster Electromagnetic flowmeter IM WMP User Guide Supplement WaterMaster FEX100 MB Electromagnetic flowmeter MODBUS RS485 Physical Layer COI FEX100 MOD EN MODBUS Tables Supplement WaterMaster Electromagnetic flowmeter COI FEX100 MOD TBL EN User Guide Supplement WaterMaster Electromagnetic flowmeter PROFIBUS RS485 Physical Layer FEX100 DP IM WMPBS EN User Guide Supplement Wat...

Страница 3: ...3 Location Flow Conditions 10 3 3 1 International Standard for Flow Measurement 11 3 3 2 Velocity Limitations 11 3 4 Location Mechanical 13 3 5 Safety 14 3 6 Installing the Flow Sensor 15 3 7 Setting the Insertion Depth 16 3 7 1 Centre Line Method for Pipe Diameters 1 m 40 in 16 3 7 2 Centre Line Method for Pipe Diameters 1 m 2 m 40 in 80 in 17 3 7 3 Mean Axial Velocity Method 18 3 8 Flow Sensor A...

Страница 4: ...00 EN Rev D Appendix A 27 A 1 Velocity Profiles Background 27 A 2 Testing the Flow Profile for Symmetry 29 A 2 1 Partial Velocity Traverse 29 A 2 2 Single Entry Point Method 29 A 2 3 Dual Entry Point Method 30 A 3 Full Velocity Profile 30 Appendix B Measuring the Internal Diameter 31 Notes 32 ...

Страница 5: ... To ensure that our products are safe and without risk to health the following points must be noted The relevant sections of these instructions must be read carefully before proceeding Warning labels on containers and packages must be observed Installation operation maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the information given Normal ...

Страница 6: ...d for protective eye wear This symbol indicates the need for protective hand wear Electrical equipment marked with this symbol may not be disposed of in European public disposal systems In conformity with European local and national regulations European electrical equipment users must now return old or end of life equipment to the manufacturer for disposal at no charge to the user Products marked ...

Страница 7: ...e or install this equipment in any manner other than that which is specified in this manual ABB Industrial Automation Measurement Analytics UK fully supports the objectives of the ROHS II directive All in scope products placed on the market by IAMA UK on and following the 22nd of July 2017 and without any specific exemption will be compliant to the ROHS II directive 2011 65 EU Warning To familiari...

Страница 8: ...arting or using the instrument please contact the company that sold it to you If this is not possible or if the results of this approach are not satisfactory please contact the manufacturer s Customer Service 1 11 Potential Safety Hazards The following potential safety hazards are associated with operating the analyzer Electrical line voltage Potentially hazardous chemicals Warning In this manual ...

Страница 9: ... part of the equipment and must be handled with care When the flow sensor is not in use fully retract the tip of the flow sensor and replace the end cap When removing inserting the flow sensor into the pipeline ensure that the valve is fully open Damage to the flow sensor affects the performance Physical damage to the flow sensor invalidates the warranty AquaMaster3 Flow Sensor or AquaMaster3 FET2...

Страница 10: ...0 EN Rev D 3 Mechanical Installation 3 1 Location Environmental Conditions Fig 3 1 Environmental Requirements AquaMaster3 AquaMaster3 A Within Temperature Limits 20 C 4 F Minimum 10 m 30 ft C Avoid Excessive Vibration B Within Environmental Rating IP68 NEMA 6P 60 C 140 F Maximum D Protect Pressure Transducer from Frost ...

Страница 11: ...utting any type of device into a pressurized vessel the pipe can be dangerous If the pressure in the line is high typically 5 bar or more care must be used in both installing and removing the probe If the pressure is greater than 10 bar installation or removal of a probe is not recommended Instead the pressure should be removed from the line for the short period of time it takes to install or remo...

Страница 12: ...n be installed in one of two positions in the pipe on the centre line or at the mean axial velocity point 1 8 pipe diameter It can also be traversed across the pipe to determine the velocity profile Note Ensure the sensor is installed in the pipe so the flow direction arrow on the flow sensor case matches the pipe flow Fig 3 2 Flow Conditions 5 Diameters See Table 3 1 Page 11 ...

Страница 13: ... sensor devices are susceptible to the vortex shedding effect that can cause severe vibration of the flow sensor resulting in damage and or measurement instability Electromagnetic devices with no moving parts such as the flow sensor are less susceptible to this effect than mechanical devices Fig 3 4 page 12 shows the maximum permissible velocities depending on the flow sensor s location This infor...

Страница 14: ... A typical valve is approximately 250 mm high and the distance to the support point inside the probe is approximately 100 mm therefore in this example the total effective length is 650 mm Max velocity at 650 mm is 3 6 m s Fig 3 3 Maximum Permissible Velocity for Different Pipe Sizes Fig 3 4 Maximum Permissible Velocity for Different Insertion Lengths Insertion Length Effective Probe Length Pipe Si...

Страница 15: ...lectrical screening Dimensions in mm in Fig 3 5 Mechanical Requirements Ø104 4 1 78 3 1 320 12 5 Ø104 4 1 84 3 3 1 in BSP 1 5 in BSP 1 in NPT On Centre Line O n C e n t r e L i n e A Clearance Dimensions B Orientation 800 1000 1200 or 1400 31 5 39 4 47 25 or 55 Transmitter terminal box manufactured before Q3 2014 Transmitter terminal box manufactured after Q3 2014 External earth ground connection ...

Страница 16: ...sor is provided with a safety mechanism see Fig 3 6 A that must be attached to its securing collar as shown in Fig 3 6 B This prevents rapid outward movement by the flow sensor if nut 1 is released Note To ensure maximum safety the positioning collar MUST be tightened in place using a 4 mm hexagon key Fig 3 6 Safety Mechanism 1 See Warning A Unsecured B Secured ...

Страница 17: ...ht only b Remove the cap c Apply PTFE tape d Insert the flow sensor into the valve e Tighten firmly Warning When inserting or removing the flow sensor suitable restraining equipment must be used to prevent the flow sensor being forced out under pressure Ensure that the valve is fully open Dimensions in mm in Fig 3 7 Insertion Bore Clearance 25 1 Minimum Clearance Fig 3 8 Installing the Flow Sensor...

Страница 18: ...ollar down to the nut and lock in place f Retract the flow sensor fully g Unlock slide the positioning collar down and lock at the distance h Insert flow sensor to position the collar depth i Tighten to 40 Nm 30 ft lbf Warning When inserting or removing the flow sensor suitable restraining equipment must be used to prevent the flow sensor being forced out under pressure Ensure that the valve is fu...

Страница 19: ...d lock in place f Retract the flow sensor fully g Unlock slide the positioning collar down and lock at the distance h Open the valve fully i Insert flow sensor to position the collar depth j Tighten to 40 Nm 30 ft lbf Warning When inserting or removing the flow sensor suitable restraining equipment must be used to prevent the flow sensor being forced out under pressure Ensure that the valve is ful...

Страница 20: ...lock in place f Retract the flow sensor fully g Unlock slide the positioning collar down and lock at the distance h Open the valve fully i Insert flow sensor to position the collar depth j Tighten to 40 Nm 30 ft lbf Warning When inserting or removing the flow sensor suitable restraining equipment must be used to prevent the flow sensor being forced out under pressure Ensure that the valve is fully...

Страница 21: ... b Align parallel to the pipe within 2 measurement error due to misalignment of 2 is 0 15 c Tighten to 40 Nm 30 ft lbf Warning When inserting or removing the flow sensor suitable restraining equipment must be used to prevent the flow sensor being forced out under pressure Ensure that the valve is fully open Note Safety restraint omitted for clarity Fig 3 12 Flow Sensor Alignment 1 2 3 See Note ...

Страница 22: ...hown Remove foil screens Twist the three screen wires together and sleeve them Twist cable pairs together Maintain Environmental Protection at all times Conduit connections must provide cable entry sealing Fig 4 1 Cable Connections at Flow Sensor Terminal Block WaterMaster FET1 Transmitter S1 Violet Screen Cut cables to 60 mm 2 35 in E1 Violet Signal E2 Blue Signal S2 Blue Screen 3 Green Sleeve D2...

Страница 23: ...on at the transmitter Fig 4 2 Potting the Terminal Box WaterMaster FET1 Transmitter Warning Potting materials are toxic use suitable safety precautions Read the manufacturers instructions carefully before preparing the potting material The remote sensor terminal box connections must be potted immediately on completion to prevent the ingress of moisture Check all connections before potting see Sect...

Страница 24: ...ailable 2 Determine the profile factor Fp from Fig 5 1 3 Calculate the insertion factor Example for a pipe of internal diameter 593 mm 23 35 in Fp 0 861 derived from Fig 5 1 Fi 1 021 Q A Fi FP V Where Q flow rate Fi insertion factor Fp profile factor V velocity A area Note Due to software configuration all calculations are in metric units Therefore if using an imperial pipe the diameter MUST be co...

Страница 25: ...29 for the procedure 5 5 Transmitter Setup The transmitter can be set up to display point velocity mean velocity or flow rate as required For full programming details refer to the relevant user guide WaterMaster FET100 User Guide OI FET100 EN Programming Guide IM WMP User Guide Supplement PROFIBUS RS485 Physical Layer IM WMPBS EN User Guide Supplement PROFIBUS FEX100 DP Parameter Tables IM WMPBST ...

Страница 26: ...ft Weight 3 5kg 7 7 lb Accuracy Velocity 2 of Rate or 2mm s 0 08 in s whichever is the greater Volume Refer to ISO 7145 1982 BS 1042 section 2 2 for details Flow condition Fully developed profile in accordance with ISO 7145 1982 BS1042 section 2 2 Pressure limitations 20 bar 295 psi Max Pressure 20 bar 295 PSI Pressure equipment Directive 97 23 EC This product is applicable in networks for the sup...

Страница 27: ... length into the pipe include flow sensor mounting components for example standoffs bushes and valves other influences include pipeline vibration fluid vibration and pump noise Wetted Materials Body Stainless steel Flow Sensor Suitable for potable water WRAS listed Electrodes stainless steel 316L Seals Suitable for potable water WRAS listed Temperature Ranges 1000 0 100 200 300 400 500 600 700 800...

Страница 28: ...ble Below Type of Disturbance Upstream from the Measuring Cross Section Minimum Upstream Straight Length For a measurement at the point of mean axial velocity For a measurement on the axis of the conduit 90 Elbow or a T bend 50 25 Several 90 Coplanar Bends 50 25 Several 90 Non coplanar Bends 80 50 Total Angle Convergent 18 to 36 30 10 Total Angle Divergent 14 to 28 55 25 Fully Opened Butterfly Val...

Страница 29: ... lower than the velocity measured on the centre line Careful Investigation of this profile or vector diagram reveals that the mean velocity of 1 722 m sec occurs at a point 72 5 mm or 1 8 th of the pipe s diameter in from the edge of the pipe This point is referred to as the Point of Mean Velocity for a fully developed turbulent flow profile only This is true provided the profile is turbulent and ...

Страница 30: ...ly 15 This can be reduced significantly by using the following method Referring to Fig A 1 in the middle of the pipe near the centre line the profile is relatively flat i e the flow velocity does not change very much with distance into the pipe Therefore if the velocity is measured on the centre line measurement errors due to positional errors i e not locating the probe where required are very sma...

Страница 31: ... Section A 2 2 If the flow sensor s insertion length is less than the internal diameter of the pipe proceed with the Dual Entry Point Method detailed in Section A 2 3 page 30 A 2 2 Single Entry Point Method 1 Insert the flow sensor to a depth of 1 8 the pipe diameter see Fig 3 11 page 18 2 Calculate the insertion factor 3 Refer to the relevant user guide and enter an Insertion Factor of value equa...

Страница 32: ...n 0 95 and 1 05 the flow profile is acceptable and the procedure detailed in Section 5 2 page 22 can be used or if the calculated ratio is not between 0 95 and 1 05 re site the flow sensor for optimum accuracy WaterMaster FET1 OI FET100 EN or AquaMaster3 FET2 OI FET200 EN A 3 Full Velocity Profile For installations with very poor and asymmetric velocity profiles for example as rejected in Section ...

Страница 33: ...ra source of errors ABB supply an internal pipe measuring probe Pipe bore Gauging Tool for this purpose The tool is used as follows 1 Fit the tool into the back of the valve so that the red line on top of the fitting and the handle of the tool is in line longitudinally with the centre line of the pipe 2 Open the valve and push the tool in gently until it touches the other side of the pipe 3 Back o...

Страница 34: ...AquaProbe FEA100 FEA200 Electromagnetic flowmeter 32 OI FEA100 200 EN Rev D Notes ...

Страница 35: ...Sales Service Acknowledgments Modbus is a registered trademark of Schneider Electric USA Inc PROFIBUS is a registered trademark of PROFIBUS organization ...

Страница 36: ...a Tel 86 0 21 6105 6666 Fax 86 0 21 6105 6677 Email china instrumentation cn abb com We reserve the right to make technical changes or modify the contents of this document without prior notice With regard to purchase orders the agreed particulars shall prevail ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document We reserve all righ...

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