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Electromagnetic Flowmeter

for Water Measurement

Model: MCB10A

User’s Manual

CM2-MCB100-2001

3rd edition

Summary of Contents for MCB10A

Page 1: ...Electromagnetic Flowmeter for Water Measurement Model MCB10A User s Manual CM2 MCB100 2001 3rd edition...

Page 2: ...aims the implied warranties of merchant ability and fitness for a particular purpose and makes no express war ranties except as may be stated in its written agreement with and for its customer In no e...

Page 3: ...r purchasing our electromagnetic flowmeter The model MCB is a flowmeter dedicated to water flow measurement and was developed applying the basic principle of electromagnetic flow measurement to be an...

Page 4: ...regarding the specifications contact the nearest Azbil Corporation office or Azbil Corporation representative service offices When making an inquiry be sure to provide the MODEL NO and PRODUCT NO Stor...

Page 5: ...mbols are used in this manual to alert you to possible hazards WARNING Denotes a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Failure to observe...

Page 6: ...urrent power lines motors or transformers to prevent damage from electromagnetic induction which can cause equipment malfunction or output errors CAUTION Do not install the electromagnetic flowmeter i...

Page 7: ...O ring remains in the groove to insure an air tight seal when the unit is reassembled CAUTION Before installing the detector make sure any foreign matter is flushed from the interior passage of the de...

Page 8: ...olt a little at a time CAUTION Using a gasket with too small a diameter can affect the flow velocity distribution resulting in inaccurate measurement Using a gasket with too large a diameter can cause...

Page 9: ...2 1 1 Criteria 1 for selecting an installation location 2 2 2 1 2 Criteria 2 for selecting an installation location 2 4 2 1 3 Direction of indicator data setter 2 6 2 1 4 Direction of the converter 2...

Page 10: ...se output or contact output 5 26 5 6 3 Setting detector information 5 27 5 6 4 Setting flow rate range 5 28 5 6 5 Setting and changing compensation coefficient 5 29 5 6 6 Setting specific gravity 5 30...

Page 11: ...apter 6 Maintenance and troubleshooting Outline of this chapter 6 1 6 1 Maintenance and inspection of hardware 6 2 6 1 1 Replacement of indicator data setter 6 2 6 2 Troubleshooting 6 3 6 2 1 Types of...

Page 12: ...t installation 2 10 Figure 2 10 Horizontal mounting Attach two pieces to each of the right and left flanges 2 11 Figure 2 11 Vertical mounting Attach 4 pieces to the lower flange 2 11 Figure 2 12 Grou...

Page 13: ...and structure of measuring system Outline of this chapter This chapter presents the equipment configuration of a measuring system using this instrument It also describes the structure the names and fu...

Page 14: ...rument is shown Fluid Output signal Analog output Pulse output Contact output Figure 1 1 Conceptual drawing of measuring system integral type Analog output If instantaneous flow rate values are to be...

Page 15: ...analog signal from the instrument can be delivered directly to a host control system 4 20mA Analog output Host control system Figure 1 2 Loop configuration for analog output Electromagnetic flowmeter...

Page 16: ...t to an electronic counter sequencer or other host control system or counter Electronic counter Capable of receiving open collector output signal Figure 1 3 Loop configuration for pulse output Electro...

Page 17: ...tput In addition to an analog signal this loop configuration allows this instrument to deliver the contact output to a sequencer or other host control system Contact input equipment Capable of receivi...

Page 18: ...rious parts The following table gives a description of the various parts Name Description Detector When a fluid passes through the inside the sensor generates a signal of electromotive force that is p...

Page 19: ...ng position is for horizontal mounting for both electrodes Names of various parts The structure and names of various parts of the sensor are shown Flow direction mark Grounding ring Setscrew 4 places...

Page 20: ...llowing function and structure Displays the instantaneous flow rate value and internal conditions of the instrument The indicator face can be turned at intervals of 90 degrees through one turn Names o...

Page 21: ...ignal terminals Open the transducer cover and you will find screwed miniature terminals on the left Names of various parts The structure of the terminal block and the manes of its various parts are sh...

Page 22: ...erminals L Power supply terminal There are models for 24V DC and 100V AC Check referring to the specification PULSE STATUS OUT Open collector pulse output and contact output terminals Grounding termin...

Page 23: ...instrument The necessary components and installing methods depend on the material of the grounding ring and the material of the installed piping The description proceeds in the following order Criter...

Page 24: ...sfies the following conditions Otherwise output errors or fluctuations may result A place where the measured fluid has the necessary electric conductivity for measurement the value depending on the tr...

Page 25: ...g a hand tool An impact from the tool may cause a broken case resulting in injury WARNING 1 When removing this instrument do removal work after ascertaining that there is no residual liquid or pressur...

Page 26: ...If empty output fluctuations may result If the measured fluid is highly viscous we recommend installing the instrument on a vertical pipe and flowing the fluid to ensure an axially symmetrical flow L...

Page 27: ...eam side However ensure 2D or over if influences of drift are thought possible Choose a place where there are little pulsations in the flow install at a place sufficiently distant from a pump or the l...

Page 28: ...d you with care 4 The indicator data setter is fixed by three screws Remove these screws Note The screws are not captive to the indicator data setter so take care not to drop them 5 Remove the indicat...

Page 29: ...Follow the procedure below Step Procedure 1 Using an M5 hex wrench remove the four screws securing the converter 2 Holding the detector rotate the converter horizontally to the desired position CAUTIO...

Page 30: ...opriate installing method Example of installing the wafer type detector The basic installing method of the wafer type detector is shown Nut option Through bolt option Pipe Centering fixture Accessorie...

Page 31: ...kgf cm Values in parentheses are for information only Flange shape Referring to Figure 2 7 use a flange that gives a large area of contact with the gasket Good example Bad example Flange Weld Weld Pi...

Page 32: ...e broken Figure 2 9 Example 2 of incorrect installation CAUTION When installing align the bores of the detector and pipe so that the gasket does not stick out inside the pipe Otherwise a leakage may r...

Page 33: ...es When installing use the centering fixtures to prevent misalignment between the pipe and sensor Pass bolts through the centering fixtures so that the detector rests on or in between the fixtures The...

Page 34: ...nches 80 mm 3 inches 100 mm 4 inches Internal diameter 16 5 1 25 5 1 40 5 1 52 1 65 1 79 1 104 1 If you use rubber gaskets and install with a small tightening torque provide rubber gaskets with the in...

Page 35: ...the sensor to be installed choose the appropriate installing method A wrong installation may bring about leakage of the measured fluid or damage to the pipe flanges resulting in injury Selecting an i...

Page 36: ...aterial on pages 2 17 to 2 18 Procedure Follow the following Step Description Figure 1 Pass bolts through the flange holes represented by black circles in the figure In this occasion put two centering...

Page 37: ...rial of the pipe on which to install the sensor Refer to the installing methods by pipe material on pages 2 17 to 2 19 Procedure Follow the following Step Description Figure 1 The flange holes are rep...

Page 38: ...ange holes represented by black circles in Steps 1 and 2 with a centering fixture put on and lightly fix them 4 Check for misalignment Check the gaskets for flushness On completion of these checks pas...

Page 39: ...entering fixtures Gaskets The recommended gaskets are gasket made of PTFE or rubber Recommended gasket internal diameter Refer to Table 2 2 on page 2 12 Installing Install as shown below For the tight...

Page 40: ...rotective fixtures Needed if installing with the prescribed tightening torque gives rise to a threat of deformation of or damage to the PVC pipe Use stainless steel or other metallic material 6 mm thi...

Page 41: ...material Lining Grounding ring Gasket Protective fixture Figure 2 14 Grounding ring made of SUS material protective fixture used 3 In the case of installing with a small tightening torque rubber gaske...

Page 42: ...Instrument installation Azbil Corporation 2 20 Model MCB10A...

Page 43: ...Model MCB10A 3 1 Chapter 3 Electrical wiring Outline of this chapter This chapter describes the electrical wiring of the main unit...

Page 44: ...internal measuring circuit Power and load resistance Use power of 24V DC 10 or 100V AC according to the specification The ripple of the supply power should be 1V or less in peak to peak value The wire...

Page 45: ...ions CAUTION Incorrect wiring polarity can do damage to the equipment Reconfirm the wiring position Wire connection of power supply and analog current output Wire connection Terminal Applicable conduc...

Page 46: ...SE OUT PULSE OUT External power source 30V DC max 100mA max Avoid this polarity Figure 3 2 Pulse output wire connection diagram Wire connection for contact output Because of the open collector output...

Page 47: ...his chapter describes the procedure for start up of the instrument and making zero adjustment It also describes termination of the measuring system When starting up and operating the instrument for th...

Page 48: ...her the settings are in accordance with the data sheet inserted in the transducer If there is a need to change settings to meet your usage change them by the data setter or the like Note If the detect...

Page 49: ...er 5 Operation using the data setting device This section describes how to operate this system from the data setting device This system configuration and settings can be made using the four keys on th...

Page 50: ...data setting unit Startup When the power supply is turned on the display changes in the order of OVERALL DISPLAY SELF CHECK MODE and MEASURING MODE OVERALL DISPLAY SELF CHECK MODE Main display 7 segm...

Page 51: ...0 minutes the configured data returns to the previous values Be sure to press the MODE key to return to the MEASURING MODE and to save data ENGINEERING MODE In the set mode for engineering the mode is...

Page 52: ...mportant adjustment values or operations for the flow rate measurement Wrong settings make accurate flow rate measurement impossible For the operation contact our service engineers CAUTION When the mo...

Page 53: ...low rate flow rate and totalized value RATE appears for the actual flow rate display for the flow rate display and TOTAL for the totalized value display see 5 3 1 Display overview Area Description Mai...

Page 54: ...NG 001 0 S Cursor If the key is pressed when the cursor is placed at a number the number is decremented 1 0000 m s SPAN 07 069 m3 h Cursor If the cursor is placed at a decimal point the decimal point...

Page 55: ...t figure of 4 digits 3rd line flow rate display Significant figure of 4 digits Totalization is not performed when the output selection is set to the contact output However the previous value is displa...

Page 56: ...5 8 Model MCB10A Totalized value display An totalized value is displayed in 8 digits without signs and decimal points In the main display unnecessary zeros are deleted but are not deleted in the sub d...

Page 57: ...three types of modes OPERATOR S MODE ENGINEERING MODE and MAINTENANCE MODE MAINTENANCE MODE is furthermore divided into three of sub modes OUTPUT CALIBRATION and CRITICAL The screen flow is as follow...

Page 58: ...0 AUTO ZERO READY CNT RESET VALUE Sets a built in counter reset value 20 0 CNT RESET VALUE 0 0 0 4 4 4 4 CNT RESET READY Resets totalized value to a built in counter reset value 20 0 CNT RESET READY 0...

Page 59: ...1 LCD display flow The LCD display flow of the OPERATOR S MODE is as shown below OPERATOR S MODE DAMPING 003 0 s AUTO ZERO READY CNT RESET VALUE 00000000 CNT RESET READY PREV 00000000 SPIKE CUT OFF AV...

Page 60: ...example in MEASURING MODE measurement state Press the MODE key 20 0 01 94 m3 h 00069401 2 The OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 20 0 OPE...

Page 61: ...h 00069401 2 The OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 1 0 OPERATOR S MODE 1 0 DAMPING 005 0 s 3 Press the h key once to display the screen...

Page 62: ...E measurement state Press the MODE key 20 0 01 94 m3 h 00069401 2 The OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 20 0 OPERATOR S MODE 20 0 DAMPIN...

Page 63: ...measurement state Press the MODE key 20 0 01 94 m3 h 00069401 2 The OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 20 0 OPERATOR S MODE 20 0 DAMPING...

Page 64: ...o use this function for applications requiring high response and performance e g the function should not be used when a pump frequently generates pulsation Electromagnetic flowmeter MCB Output not aff...

Page 65: ...processing of the measured flow rate values The model MCB performs the flow rate calculation every 400 ms For example if the moving average process time is set to 2 seconds the moving average process...

Page 66: ...or i key to display the screen shown on the right 20 0 AVERAGING OFF 4 Press the g key to move the cursor to the OFF position 20 0 AVERAGING OFF 5 Press the h key to switch the OFF screen to the ON sc...

Page 67: ...2 The OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 20 0 OPERATOR S MODE 20 0 DAMPING 005 0 s 3 Press the h or i key to display the screen as shown...

Page 68: ...en 1 The screen shown right is a screen display example in MEASURING MODE measurement state Press the MODE key 20 0 01 94 m3 h 00069401 2 The OPERATOR S MODE screen appears for approx two seconds and...

Page 69: ...OPERATOR S MODE screen appears for approx two seconds and then the damping setting screen appears 20 0 OPERATOR S MODE 20 0 DAMPING 005 0 s 3 Press the h key once to display the screen as shown on th...

Page 70: ...pen collector output selects pulse output or contact output 20 0 FUNC SET PULSE EX DIA Sets the detector information Ex value and bore diameter 20 0 MCB DIA 200 EX 300 0 SPAN Sets the flow rate range...

Page 71: ...0 100 ERROR OUT MODE I OUT Determines the analog output failsafe direction 20 0 ERROR OUT MODE I OUT HOLD ERROR OUT MODE P OUT Determines the pulse output failsafe direction 20 0 ERROR OUT MODE P OUT...

Page 72: ...w is as follows ENGINEERING MODE ID SET XXXXXXXX FUNC SET PULSE MCB DIA 100 1 0000 m s SPAN 7 0690 m3 h GRAVITY 1 0000 COEFFICIENT 1 0000 PLS 10 000 Hz SCL 196 36 m3 P PLS 30 000 WID 0010 ms DROP OUT...

Page 73: ...owing procedure Step Procedure Screen 1 Enter ENGINEERING MODE see section 5 4 10 and display the screen where the ID is to be set 12 3 ID SET XXXXXXXX 2 Press the g key to move the cursor to the posi...

Page 74: ...t STOUT Selection of contact output Default PULSE Select pulse output or contact output in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the...

Page 75: ...owing procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press the h or i key to display the screen at right 12 3 MCB D...

Page 76: ...mass flow rate lb Unit of time d h min s Set the flow rate range in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING...

Page 77: ...with the entry into ENGINEERING MODE see section 5 4 10 Then press the h or i key to display the screen at right 12 3 COEFFICIENT 1 0000 2 Press the g key to move the cursor to the position under a d...

Page 78: ...into ENGINEERING MODE see section 5 4 10 Then press the h or i key to display the screen at right 12 3 GRAVITY 1 0000 2 Press the g key to move the cursor to the position under a desired value to be...

Page 79: ...ct the same unit systems volume unit or mass unit for the flow rate range and pulse scale Selection of different unit systems for them will cause set errors Err 22 PULSE WEIGHT SETTING ERROR See 5 8 2...

Page 80: ...2 Press the g key to move the cursor to the position under a desired value to be set or changed 12 3 PLS 27 780 Hz 100 00 l p SCL 3 Using the h or i key change the value to a desired pulse scale to b...

Page 81: ...if the pulse width exceeds the DUTY ratio of 70 in span frequency Default DUTY 50 Method of setting pulse width The DUTY ratio is B A in the diagram at right 1 NUM when real pulse width is selected D...

Page 82: ...e range into the unit of per second s 360 m3 h g 0 1 m3 s Convert the unit of flow rate range to be same as the unit of pulse scale 0 1 m3 s g 0 1 1000 l s 100 l s Calculation of span frequency 100 l...

Page 83: ...r pulse width to a screen for fixing the DUTY ratio to 50 12 3 PLS 50 WID DUTY 4 To enter a numeric value for pulse width press the h key to return to the screen for the entry of numeric values Using...

Page 84: ...drop out in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press the h or i key to d...

Page 85: ...rate Example If the velocity range is set as 2 m s the lower limit of the low flow cutoff value is 1 5 0 03 2 0 015 1 5 Setting range 1 to 10 Default 5 Set low flow cut in accordance with the followi...

Page 86: ...the upper lower limit alarm in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press t...

Page 87: ...t is held at its last good value Default LOW Set failsafe mode for analog output in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry...

Page 88: ...ilsafe mode for pulse output in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press...

Page 89: ...following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press the h or i key to display the screen at right 12 3 S...

Page 90: ...ilsafe mode for pulse output in accordance with the following procedure Step Procedure Screen 1 Enter ENGINEERING MODE in accordance with the entry into ENGINEERING MODE see section 5 4 10 Then press...

Page 91: ...MAINTENANCE MODE consists of the following three types OUTPUT CHECK MODE CALIBRATION MODE and CRITICAL MODE For details on the modes see the following pages LCD display flow The LCD display flow of M...

Page 92: ...I OUT Outputs a fixed value of analog current output to perform loop checks 12 3 OUTPUT CHECK I OUT 100 OUTPUT CHECK P OUT Outputs a fixed value of pulse output to perform loop checks 12 3 OUTPUT CHE...

Page 93: ...ection 5 4 10 Then display the screen at right 20 0 OUTPUT CHECK MODE OFF 2 Press the g key to move the cursor to the OFF position Press the h key With the display switched from OFF to ON the output c...

Page 94: ...screen at right 20 0 OUTPUT CHECK MODE OFF 2 Press the g key to move the cursor to the OFF position Press the key With the display switched from OFF to ON the output check mode is then active 20 0 OUT...

Page 95: ...ry into MAINTENANCE MODE see section 5 4 10 Then display the screen at right 20 0 OUTPUT CHECK MODE OFF 2 Press the g key to move the cursor to the OFF position Press the h key With the display switch...

Page 96: ...surements of the flow rate To operate in this mode contact an Azbil Corp representative Item Content Screen CAL I OUT Adjusts 4 mA analog current output 12 3 CAL I OUT OFF LOW 4 000 mA LOW 4 000 mA CA...

Page 97: ...tting device Model MCB10A 5 49 LCD display flow The LCD display flow of CALIBRATION MODE is as follows CAL I OUT OFF LOW 4 000 mA CAL I OUT OFF HIGH 20 000 mA CAL P OUT OFF FREQ 90 Hz CAL GAIN ZERO RE...

Page 98: ...ude factory calibration data and factory settings or initial default settings for customer configuration data 20 0 SHIPPING DATA RECOVERY READY INITIAL DATA RECOVERY Initial data recovery eliminates a...

Page 99: ...MAINTENANCE MODE in accordance with the entry into MAINTENANCE MODE see section 5 4 10 Using the h or i key display the screen at right 20 0 OUTPUT CHECK MODE OFF 2 Press the h key twice to display t...

Page 100: ...E OFF 2 Press the h key twice to display the screen at right 20 0 CRITICAL MODE OFF 3 Press the g key to move the cursor to the OFF position Then press the h key to switch the display from OFF to ON A...

Page 101: ...e electromagnetic flowmeter will continue to output the preset value in the abnormality treatment failsafe direction The error message and the self diagnostic results will be visible on the display Pe...

Page 102: ...ror code Error content Action LCD display Err 12 Upper lower limit alarm set error HI LO is set Set HI LO Err 12 SETTING ERROR HI LO Err 21 Span is set to 12 m s or more Check the settings of flow rat...

Page 103: ...ECOVERY Display conditions When SHIPPING DATA RECOVERY is executed Displayed for 3 seconds sub indication after rebooted and after the entire LCD indication is displayed 5 8 3 Status indication OVER L...

Page 104: ...Operation using the data setting device Azbil Corporation 5 56 Model MCB10A...

Page 105: ...nance and troubleshooting Outline of this chapter This chapter presents an instrument maintenance and inspection procedure and information to refer to when doing troubleshooting Ensure the measures to...

Page 106: ...ward you with care 4 Remove the 3 fixing screws Note The screws are not captive to the indicator data setter so take care not to drop them 5 Remove the indicator data setter Note A cable is attached t...

Page 107: ...the appropriate measure referring to the troubleshooting guide given here Critical failure A critical failure is defined as a state or failure that causes a grave hindrance to the operation of the ins...

Page 108: ...own Contact the nearest Azbil Corporation office or Azbil Corporation representative service offices Trouble Points to check and measures Nothing is displayed on the indicator when powered on Check th...

Page 109: ...ctly Check that the damping time constant is set correctly Clean the electrodes The output value exceeds 100 Check that the range is set correctly Check that zero is adjusted correctly The output valu...

Page 110: ...ples of application described in any documents provided by Azbil Corporation are for your reference purpose only and you are required to check the functions and safety of your Equipment prior to your...

Page 111: ...the conditions or environment of use the number of open close operations of relays etc as prescribed in specifications or instruction manuals or depending on the design margin of your machine or equi...

Page 112: ......

Page 113: ...ocument Number CM2 MCB100 2001 Document Name Magcube Electromagnetic Flowmeter General type Model MCB10A User s Manual Date 1st edition Apr 2004 3rd edition Sep 2020 Issued Edited by Azbil Corporation...

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