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Irrigation

IOM

Sensors

| 48 |

7.5.2  Calculation of the insertion depth

The insertion depth I can be determinated using the following formula:

I = –

Di

8

In order to precisely set the insertion depth, it is possible to use the control value M1:

M = Li - S - –

Di

8

Where:

„ 

Li = Sub-flange length of the flowmeter

„ 

Di = Internal pipe diameter

„ 

S = Thickness of the pipe, including possible coating

M

L i

L

2 Sf

s

s

Ø Di

1/8Di

 

Fig. 86

Содержание MUT1000

Страница 1: ...BERMAD Meters Electromagnetic flowmeters Sensors Instructions manual MUT2200EL US MUT2300 US MUT1000EL US MUT1100J MUT1222 MUT2660 MUT2770...

Страница 2: ...ectric shock All operations marked with this sign must be performed exclusively by qualified technical personnel CAUTION WARNING This symbol indicates vital information and points to be observed Pleas...

Страница 3: ...ensors 10 MUT1000EL Wafer 10 MUT1100J Wafer in plastic material 10 2 2 3 Insertion sensors 10 MUT1222 10 MUT2660 10 MUT2770 10 2 3 TYPES OF INSTALLATION OF THE SENSOR 10 3 INSTALLATION 11 3 1 STORAGE...

Страница 4: ...30 4 4 METAL PIPES WITH INSULATING ADAPTERS 30 4 5 METAL AND PLASTIC PIPES 31 4 6 PIPES EQUIPPED WITH CATHODIC PROTECTION 31 5 ELECTRICAL CONNECTION 32 5 1 SEPARATE VERSION SENSOR CONNECTION 32 5 2 E...

Страница 5: ...44 7 4 3 Installation of the sensor 45 7 4 3 1 Preparation of the pipe 45 7 4 3 2 Installation of the flowmeter 45 7 4 4 Flowmeter grounding 46 7 5 MUT2770 47 7 5 1 Dimensions and main features 47 7...

Страница 6: ...high working pressures or use of substances that may be dangerous for people the environment equipment or anything else In case of pipe breakage EUROMAG INTERNATIONAL recommends taking necessary preca...

Страница 7: ...tive 2 Pipe must be always full and free from air and bubbles 3 The input and output distances must be on recommended settings 4 The grounding instructions must be followed 1 4 PRODUCT IDENTIFICATION...

Страница 8: ...Industrial wastewater X X X Data acquisition for report and analysis X X X X X X X Night applications with very low flow rates X Leakage control X X X X Dams X X Water distribution X X Distribution mu...

Страница 9: ...verters are designed to meet all the needs of modern water management systems through flexible and hybrid electronics which depending on the model offers various electrical power solutions At the ends...

Страница 10: ...300 Reduced Bore 2 2 2 Wafer sensors MUT1000EL Wafer MUT1100J Wafer in plastic material 2 2 3 Insertion sensors MUT1222 MUT2660 MUT2770 2 3 TYPES OF INSTALLATION OF THE SENSOR The sensors in different...

Страница 11: ...fted and moved so as not to cause damage to the sensor itself and connection flanges Below you will find a description of correct and incorrect lifting and moving The proper lifting method for transpo...

Страница 12: ...performance and duration Install a suitable anti vibration protection if vibrations occur 3 2 2 Magnetic fields AVOID exposing the flowmeter to strong or nearby magnetic fields AVOID EXCESSIVE VIBRAT...

Страница 13: ...ht 3 2 5 Operating temperatures For normal and efficient operating of the flowmeter The room temperature must be limited within the range of 25 60 C 13 140 F C F Min Max Min Max Coating in EBONITE 40...

Страница 14: ...3 2 Important guidelines for correct installation The junction box on the sensor is designed to have the IP68 protection degree only when properly closed and tightened The manufacturer does not assume...

Страница 15: ...sertion sensors 15 DN 10 DN Fig 14 Installation on U shaped tube T connection downstream of the flowmeter 10 DN Fig 15 Installation on U shaped tube Three dimensional curves 10 DN Fig 16 Installation...

Страница 16: ...ct positions We recommend installing the sensor on a vertical sloped pipe with an upward flow direction Fig 19 to minimize the wear and deposits in the sensor Avoid the installation on vertical pipes...

Страница 17: ...stallation In order to avoid a vacuum always install the sensor downstream of the pump and NEVER upstream Fig 23 Avoid negative pressure This installation secures the sensor full of liquid This instal...

Страница 18: ...ing the bolts Fig 26 Do not try to move the pipe closer to the sensor by tightening the bolts Also avoid the following positions Note Insertion meters can also be installed horizontally DO NOT install...

Страница 19: ...nd the gasket If the bolts are overtightened leakage or damage to the flowmeter or piping may occur Maximum allowable deviation of the pipe flange faces is 0 5 mm Fig 30 Maximum allowable deviation DO...

Страница 20: ...1 50 of the maximum tightening torque Step 2 80 of the maximum tightening torque Step 3 100 of the maximum tightening torque given in the diagram All the values are theoretical and have been calculate...

Страница 21: ...30 40 35 65 40 8xM16 38 25 30 25 80 40 8xM16 45 25 35 30 100 16 8xM16 45 25 35 30 125 16 8xM16 55 40 45 32 150 16 8xM20 70 50 60 45 50 200 10 8xM20 85 70 55 200 16 12xM20 70 45 35 250 10 12xM20 80 65...

Страница 22: ...s drainage and prevents dirt solidification on the sensor In addition it facilitates the location of the same if new excavations are required Before covering the gravel with earth we recommend using e...

Страница 23: ...owmeter The air pocket inside a pipe always moves toward the top of the pipe and it is assumed that the air will always move if the flow passes along a horizontal pipe but this is not the case Instead...

Страница 24: ...e of the flowmeter By increasing the pressure in the duct the air pocket will compress causing fewer problems This can be achieved by installing pressure control valves after the flowmeter to maintain...

Страница 25: ...The general principle of each installation is to ensure that the device is always full of water however this is not always possible since a part of the network could drain when the pumps are turned of...

Страница 26: ...should be avoided Instead it is preferable to use combined pneumatic valves that incorporate an automatic orifice as well as a large kinetic orifice These valves ensure that the largest volumes of air...

Страница 27: ...e section reduction is applied simultaneously with the use of reduced section meters In the case of low pressures the section reduction could also lead to cavitation formation especially if the meter...

Страница 28: ...rect grounding may lead to an incorrect measurement GROUNDING CABLE Minimum section 2 5 mm2 recommended 4 mm2 grounding screws M5 Recommended ground resistant value is 5 The flowmeter is equipped with...

Страница 29: ...t be earthed using the appropriate ground screw placed on the converter casing Grounding rod 4 2 PLASTIC PIPES Grounding rod Fig 45 Compact version grounding connection PLASTIC PIPE PLASTIC PIPE GROUN...

Страница 30: ...insulating coating follow the instructions for plastic pipes 4 4 METAL PIPES WITH INSULATING ADAPTERS METAL PIPE METAL PIPE Grounding rod Fig 47 Grounding of sensor on metal pipes METAL PIPE METAL PI...

Страница 31: ...the flange and connect a wire between the pipes large enough to handle the cathodic current and the environmental effect Use the grounding rings on both ends see Fig 50 METAL PIPE PLASTIC PIPE Groundi...

Страница 32: ...and converter may vary according to the type of converter therefore follow the indications given in the relevant documentation Info If cables in the coil are used always use the ferrules for the conn...

Страница 33: ...n the converter side as well as the INTERNAL shield of the electrode cable The EXTERNAL shield of the electrode cable must be connected to the case on the earthing point of the separation box of the s...

Страница 34: ...028 cables are provided with double shielding one external and one additional shielding of the single signal cables of the measuring electrodes only C022 F D T C E PVC outer jacket Shield Fig 54 Stand...

Страница 35: ...l be integrated into the converter or a third party sensor can be used It is recommended to place a valve between the pressure tap and the transducer so that the transducer can be assembled and disass...

Страница 36: ...Operating principle In accordance with the international standard ISO 7145 Determination of flow rate of fluids in closed conduits of circular cross section Method of velocity measurement at one point...

Страница 37: ...device The measuring head of the insertion sensor is a delicate part of the measuring instrument and must be handled with care By removing or inserting the measuring head in the pipe make sure that th...

Страница 38: ...e positioned perpendicularly to the flow direction d d where d is the distance between the electrodes If the electrodes are rotated by an angle d d and an error in the measurement will therefore be in...

Страница 39: ...ssure higher than 10 bar the assembly or disassembly of the meter under pressure is not recommended Instead we recommend reducing the line pressure for the short period of time necessary to perform th...

Страница 40: ...using the following formula I Di 8 In order to precisely set the insertion depth it is possible to use the control value M1 M1 L S Di 8 Where L Flowmeter length according to the table of Fig 63 Di Int...

Страница 41: ...diameter of the hole must be 25 1mm Weld the threaded sleeve paying the utmost attention to its correct orientation The axis of the sleeve must intersect the axis of the pipe and be perpendicular to i...

Страница 42: ...een the pipe and the valve 7 3 5 Flowmeter grounding Assemble the saddle bracket at the point of installation Drill the pipe using the sleeve as a centering jig The diameter of the hole must be 25 1mm...

Страница 43: ...does not have Hot Tap functionality The maximum pressure at which the meter can operate is 10bar Main features DN Range DN 80 DN 500 3 20 Maximum pressure 10 bar Temperature limits process 20 C 80 C...

Страница 44: ...erminated using the following formula I Di 8 In order to precisely set the insertion depth it is possible to use the control value M1 M1 L S Di 8 Where L Flowmeter length 367mm Di Internal pipe diamet...

Страница 45: ...7 4 3 2 Installation of the flowmeter ATTENTION Before inserting the sensor check that the insertion hole is free from obstruction and or burrs caused by preparation work because it could damage the...

Страница 46: ...Irrigation IOM Sensors 46 7 4 4 Flowmeter grounding Grounding rod ROUNDING CONNECTION BOLT Fig 84 Grounding...

Страница 47: ...stallation assembly and disassembly of the meter the pipe must be empty the sensor does not have Hot Tap functionality The maximum pressure at which the meter can operate is 25bar NOTE The supply of t...

Страница 48: ...erminated using the following formula I Di 8 In order to precisely set the insertion depth it is possible to use the control value M1 M Li S Di 8 Where Li Sub flange length of the flowmeter Di Interna...

Страница 49: ...sleeve for assembly by cutting it to length M and weld it to the pipe taking into consideration the following The perpendicularity of the sleeve axis in relation to the pipe axis The rotation of the s...

Страница 50: ...matter In the case of ebonite coated Euromag flowmeters please avoid any acid solution containing HF hydrofluoric acid in any concentration The basic solution such as NaOH can be used but only at room...

Страница 51: ...ntal protection MANUFACTURER S STATEMENT The manufacturer declares that the design development and construction of the CONVERTER have been carried out in compliance with the directive on the reduction...

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