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Azbil Corporation

Installation of this instrument

Model: MVC10A/10F - Multivariable Air Flow Meter 2-3

NOTE

When the flow velocity of the fluid going through this instrument is relatively high,

an unusual sound may be audible, which does not, however, cause any problem in the

service of this instrument.

CAUTION

Since the work fluid contains more or less water, remove the accumulated water

inside the remote type tube and pressure-bearing cover of the body. Otherwise, an

output shift may result.

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Summary of Contents for MVC10A

Page 1: ...The Multivariable Air Flow Meter Model MVC10A 10F User s Manual CM2 MVC200 2001 ...

Page 2: ...claims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customer In no event is Azbil Corporation liable to anyone for any indirect special or consequential damages This information and specifications in this document are subject to change without notice ...

Page 3: ...uding cost indication and leakage checking useful for energy saving control in a wide variety of applications CAUTION For the messages displayed on the local data setting device used for setting operation parameters of this instrument Japanese is selected in default Thus before starting the operation switch the language for display to English For the details of changing languages for display refer...

Page 4: ... have specified Tag No verify the Tag No checking Tag No plate on the side of the case Inquiries If you have any questions regarding the specifications contact our branch and sales representative offices and your local Azbil Corporation distributor When making an inquiry be sure to let us know the Model and Product Nos of the product you have purchased Storage precautions When storing this instrum...

Page 5: ...allation operation and maintenance operations read the safety precautions in this manual to understand them thoroughly Usage precautions The following symbols 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 Denotes a potentially hazardous situation which if not avoided co...

Page 6: ... chapter Chapter 3 Operation and shut down of this instrument Describes the operating sequence of activating operating and stopping this instrument Refer to this chapter when using the installed equipment and when stopping it Chapter 4 Setting parameters and operating the local data setting device Explains how to operate this equipment by using the local data setting device Refer to this chapter w...

Page 7: ...strument Outline of this chapter 2 1 2 1 Before starting installation 2 2 Criteria for selecting the place for installation 2 2 Introduction 2 2 Precautions in the environment 2 2 Piping vibration 2 2 Influence of straight pipe section lengths 2 2 Selecting the pipe fitting direction 2 2 Flow direction 2 2 2 2 Installation method 2 4 Basic installation method 2 4 Introduction 2 4 An example of mou...

Page 8: ... the measuring mode 4 5 Description of the measuring mode 4 5 4 4 Description of the setting menu mode 4 5 Description of the setting menu mode 4 5 4 5 Configuration of the Basic menu 4 6 Configuration of the basic menu 4 6 4 6 Configuration of the maintenance menu 4 7 Configuration of the MAINTENANCE MENU 4 7 4 7 Method of operation by using the setting menu mode 4 8 Changing items of the setting...

Page 9: ...his chapter 5 1 5 1 Maintenance 5 2 Disassembling and assembling 5 2 Disassembling 5 2 Removing the cover 5 2 Removing the cover for power supply unit 5 2 Removing the terminal board and main board 5 2 Assembling the converter 5 2 Disassembling and assembling the converter and its fixture 5 3 Inspection 5 3 Checking for piping leakage 5 3 Insulation resistance and withstand voltage tests 5 3 Insul...

Page 10: ...Table of Contents ...

Page 11: ...0A 10F Multivariable Air Flow Meter 1 1 Chapter 1 Configuration and structure of the measuring system Outline of this chapter This chapter explains the measuring systems using this instrument The instrument s structure and the names and functions of its integral parts are described ...

Page 12: ...ter Integral type The detector and converter are integrated and mounted on a pipe for the actual service Remote type The detector and converter are isolated and connected with a tube Concept of flow rate measurement Figure 1 1 shows the outline of a flow rate measuring system using this equipment Analog output wiring inlet Pulse output wiring inlet Power cable inlet Converter Fluid Detector Fig 1 ...

Page 13: ...s an analog signal of 4 to 20 mA DC In this system configuration the analog signal can be output from this instrument to the monitoring or control system in a layer directly above the instrument This instrument Receiving instrument 4 20 mA DC analog signal Fig 1 2 Concept drawing of integral type measuring system This instrument Measures flow rate and outputs instantaneous flow rate values in anal...

Page 14: ...CD display Local data setting device Signal output wiring outlet analog pulse Power cable inlet Fig 1 3 Details of flow meter Structure of converter Principal component devices The converter of this instrument is composed of a main board a terminal board a keyboard assembly and a converter cover Tag plate Main board Terminal block Fuse Terminal board Power unit cover mounting screws 4 x M3 Power u...

Page 15: ...sure and static pressure Converter Performs calculation by using the values of detected differential pressure static pressure and ambient temperature and converts them into instantaneous flow rate values Outputs an instantaneous flow rate value as an analog or digital signal to the control units Terminal board Accommodates an output terminal block Accommodates a power supply unit A fuse is provide...

Page 16: ...Configuration and structure of the measuring system Azbil Corporation 1 6 Model MVC10A 10F Multivariable Air Flow Meter ...

Page 17: ...allation of this instrument Model MVC10A 10F Multivariable Air Flow Meter 2 1 Chapter 2 Installation of this instrument Outline of this chapter This chapter describes the method for installation and wiring of this instrument ...

Page 18: ... minimum length of a straight pipe section required for the connection between this instrument and each joint of the upstream and downstream sides of the instrument Each number in the table denotes a multiple of the pipe diameter D L1 L2 L1 L1 L1 L1 L1 L2 L2 L2 L2 L2 3 5D 0 5 1 5 2 5 1 5 2 5 0 6 4 0 Multivariable mass flow meter Multivariable mass flow meter Multivariable mass flow meter Multivari...

Page 19: ...oing through this instrument is relatively high an unusual sound may be audible which does not however cause any problem in the service of this instrument CAUTION Since the work fluid contains more or less water remove the accumulated water inside the remote type tube and pressure bearing cover of the body Otherwise an output shift may result ...

Page 20: ...e description on mounting method and install it correctly An example of mounting the integral type Fig 2 2 An example of mounting the integral type CAUTION Since this instrument is a heavy object exercise great care not to drop it on your feet or other parts of your body If it is dropped by mistake you may be wounded or suffer a broken bone Bore diameter 50 A 65 A 80 A 100 A 150 A Weight 9 kg 11 k...

Page 21: ...en the two piping flanges when the space is too narrow It can damage the instrument Fig 2 4 Examples of erroneous installations 2 Connection with remote type converter When mounting the converter on a bracket tighten the bolts and ensure that there is no play After mounting the converter if the bolts for fixing the converter with the bracket are loosened tighten them again Bracket tightening torqu...

Page 22: ...ich may break the circuit in the internal wiring Figure 2 5 below shows the main unit s terminal board and gives wiring and grounding terminal diagrams Terminal board Terminal board Terminal connection Terminal connection Side view Side view Screw size M2 6 External ground Internal ground Terminal connection Marking N L G P COM R Description Power supply Ground Pulse output Analog output unused Fi...

Page 23: ...bles This may cause output error For waterproofing and damage prevention of the wire we recommend cabling work using conduits and ducts Be sure to use a waterproof gland for connecting with each type of wire Current output wire connection This instrument Measures flow rate and outputs instantaneous flow rate values in analog signals 4 to 20 mA DC The analog output range is 3 8 mA to 20 8 mA DC 1 2...

Page 24: ...ails of the pulse weight refer to Item Setting the pulse weight under Subsection 4 8 Initial setting Carry out the wiring paying attention to the voltage and polarity P COM 50 mA max Avoid this polarity External power source 30 V DC max Load Protective diode Fig 2 7 Pulse output wire connection diagram CAUTION Incorrect wiring polarity can cause damage to the equipment Double check the wiring posi...

Page 25: ...nstrument When practicing the procedure carefully follow the descriptions in this chapter CAUTION For the messages displayed on the local data setting device used for setting operation parameters of this instrument Japanese is selected in default Thus before starting the operation switch the language for display to English For the details of changing languages for display refer to the Item Setting...

Page 26: ...edure 1 Ensure that this instrument is correctly fitted to the piping 2 Ensure that the wiring of the detector and converter for this instrument have been securely conducted 3 Fill this instrument with the fluid to be measured and let it stay still for a while 4 Ensure that no leakage is found from the flanges on which this instrument is fitted 5 Energize the converter for this instrument 6 Ensure...

Page 27: ...s the Menu key M in the display area twice Then the title MAINTENANCE MENU appears on the display Step 2 Press the right arrow key in the display area The message 1 TAG appears Step 3 Press the down arrow key in the display area five times The message Zero Adjust appears Step 4 Press the right arrow key When the message Are you sure appears press the Enter key E When the message Zero Completely ap...

Page 28: ... switch the operation mode of control units to manual control This procedure is required to prevent the control unit from being directly affected by the shut down of input from this instrument Procedure To stop the operation of this instrument use the following procedure Step Procedure 1 Switch the operation mode of the control unit for the instrument to be stopped to manual control 2 Turn off the...

Page 29: ... local data setting device that performs setting of various operating parameters CAUTION For the messages displayed on the local data setting device used for setting operation parameters of this instrument Japanese is selected by default Thus before starting the operation for this chapter switch the language for display to English For the details of changing languages for display refer to the Item...

Page 30: ... 1 Name of parts on the control panel of the local data setting device The following describes each display screen appearing on the local data setting device Name Description Disp key Switches the items displayed on the sub display Reset key Resets the values of totalized flow rate and cumulated cost Menu key Shifts to the setting menu mode Enter key Enters various set values and alteration values...

Page 31: ...displayed The items displayed are listed in the table given below The details of display can be switched by using the Disp key D Display category Indicates the type of a value displayed Denotes that a main display item is indicated Denotes that a sub display item is indicated By pressing the Disp key D displays the sub display item name for 5 seconds Similarly the sub display item name appears whi...

Page 32: ...hanging settings of displays and others MAINTENANCE MENU serves for setting detailed functions Switches sub displays MEASURING MODE Details in Subsection 4 3 SETTING MENU MODE Disp Menu Key R Reset 1 Main Disp Resets totalized values flow rate and cost to zero 2 Unit 1 TAG 2 Ref Temp Disp Key D Key Key MAINTENANCE MENU BASIC MENU Menu Switch with Switch with Details in Subsection 4 4 Key Switch wi...

Page 33: ...tion of the setting menu mode Description of the setting menu mode Sets various values Pressing the Menu key M causes the BASIC MENU to appear Pressing the key again causes the system to switch the display to the MAINTENANCE MENU M a i n D i s p V o l u m e 1 T o t a l Menu item Main display value Details set An example of a displayed screen in setting menu mode Name Description Main display value...

Page 34: ...ation of the BASIC MENU is shown below To terminate the BASIC MENU press the Menu key M or Disp D key 1 Main Disp Select the main display Select the unit for each value 3 Damping Time Sets the damping 4 Low Flow Cat Sets the low flow cut Displays and sets a leak rate 5 Leak Check 2 Unit Selects the unit for a totalized flow rate 1 Total Volume Selects the unit for an instantaneous flow rate 2 Flow...

Page 35: ...MAINTENANCE MENU is shown below To terminate the MAINTENANCE MENU press the Menu key M or Disp D key 1 TAG Sets a tag Sets a reference temperature 3 Ref Pressure Sets a reference pressure 4 Pulse Weight Sets a weight for a pulse Sets a weight for cost conversion 5 Cost Rate Executes the zero adjustment 6 Zero Adjust Sets the maximum value to an arbitrary value 8 Max Flow Performs the automatic set...

Page 36: ... Put the cursor under the figure U 2 n i t The number selected by the cursor is changed Indicates that the number selected by the cursor can be changed by using the or key Press the key 2 Set the menu details by pressing the key M 1 T a o i t a n D l i V s o p l u m e Press the key M 1 T a o i t a n D l i V s o p l u m e The cursor moves downward 3 After changing the menu settings press the Enter ...

Page 37: ...ghtward direction When the cursor is at the rightmost end pressing the key moves the cursor to the left end 2 Replace the figure by pressing the or key to move the cursor upward or downward R 1 e 0 f 1 P 2 3 r 5 e s k s u P r e R e f P r e s s u r e a Press the key 1 0 1 2 3 5 k P a The figure selected by the cursor is increased by one 3 Press the Enter key E to implement the set details R 1 e 1 f...

Page 38: ...ing the or key After inputting the reference temperature press the Enter key E When the message Value Changed appears the setting is completed Note When a set value is changed during operation the internal flow rate calculation is altered If it is the case be sure to reset the totalized value Conducting the reference temperature setting causes the system to change the maximum flow rate value flow ...

Page 39: ... key E When the message Value Changed appears the setting is completed Pulse weight Pulse width ms 0 01 Pulse weight 0 10 1 0 10 Pulse weight 1 00 10 Note When a set value is changed during operation the internal flow rate calculation is altered If this is the case be sure to reset the totalized value Setting the cost weights MAINTENANCE MENU 5 Cost Rate Conduct the setting of cost conversion weig...

Page 40: ...Sensor Range Over This message appears when current value overshoots the sensor range If it is the case please contact our sales representatives at our branch sales office or our distributors from whom you have purchased this instrument or our customer services department of our head office Executing the auto ranging function MAINTENANCE MENU 7 Auto Range Conduct the automatic setting of maximum f...

Page 41: ...Unit and thus the maximum flow rate value that can be set varies with the unit employed Adjusting the analog output signal MAINTENANCE MENU 9 DAT Trim Conduct the trimming of an analog output signal Press the Menu key M twice to display the message MAINTENANCE MENU Press the key once to display the message 1 TAG Press the key eight times to display the message 9 DAC Trim Pressing the key allows th...

Page 42: ... that can be set are as follows Total Volume totalized or cumulative flow rate m3 kg t Flow Rate instantaneous flow rate s min h day Total Cost totalized or cumulative cost yen Cost instantaneous cost s min h day Press the Menu key M once to display the message BASIC MENU Press the key once to display the message 1 Main Disp Press the key once to display the message 2 Unit Next pressing the key ca...

Page 43: ...ce to display the message BASIC MENU Press the key once to display the message 1 Main Disp Press the key three times to display the message 4 Low Flow Cut Pressing the key moves the cursor Input an arbitrary value within the range from 0 to 20 by using the or key Then select the damping time constant by using the or key and press the Enter key E When the message Value Changed appears the setting i...

Page 44: ...ctory are as follows Setting item Set value Main Disp Total Volume Unit Total Volume m3 Flow Rate Nm3 h Total Cost yen Cost yen h Damping Time 1 0 s LowFlow Cut 3 Leak Check Set Press 0 65 MPaG TAG XXXXXXXX Ref Temp 0 C Ref Pressure 101 325 kPa abs Pulse Weight Customer specified value When unspecified 0 1 m3 pulse Cost Rate 0 yen m3 Max Flow Customer specified value When unspecified maximum value...

Page 45: ...ted to calculate in advance the amount of cost for a unit flow rate of 1 m3 compressed air Compressor efficiency B yen m3 from the compressor power consumption and unit cost of electricity Compressor Compressor efficiency B yen m3 Flow meter Flow rate A m3 h 2 Set the calculated compressor efficiency B yen m3 as a Cost Rate For reference The Cost instantaneous cost yen h for while the process flui...

Page 46: ...n Del Peak Value Flow rate Pre execution range Post execution range x 1 25 Maximum flow rate value Time Executing the auto ranging Constantly calculating the maximum value The adjustable range is 10 to 100 of the maximum flow rate value that can be set depending on bore diameter For the details of maximum flow rate values that can be set depending on bore diameter refer to the Item Setting the max...

Page 47: ...set value of compressor pressure starting at 70 of the set value Then close the piping system stop the compressor and measure the time t2 that elapses from the time when the piping pressure is at 80 of the set value until it reaches 70 of the set value and allow the system to calculate the leak rate by the following Leak rate Thus the lower the value the smaller the leak amount 1 A leak rate is in...

Page 48: ...Setting parameters and operating the local data setting device Azbil Corporation 4 20 Model MVC10A 10F Multivariable Air Flow Meter ...

Page 49: ...A 10F Multivariable Air Flow Meter 5 1 Chapter 5 Maintenance and troubleshooting of this instrument Outline of this chapter This chapter enumerates the steps for maintenance and inspection of this instrument and the matters that should be referred to when conducting troubleshooting ...

Page 50: ... board First remove the connector The power unit cover is fixed to the case with M3 screws each with a Philip s head at two spots which should be removed Removing the terminal board and main board The terminal board is fixed to the case with M3 screws each with a Philip s head at four spots After removing the terminal board you will find the main board which is fixed to the case with M3 screws eac...

Page 51: ...ise an electric shock may result Whenever the system is energized never perform wiring work Otherwise an electric shock may result Checking for piping leakage Ensure that no leakage is found in the pipe joints of this instrument Insulation resistance and withstand voltage tests In principle refrain from conducting any insulation resistance and withstand voltage tests which may damage the built in ...

Page 52: ...use Replace the fuse in the following steps 1 Interrupt the supply to the power terminals L and N of this instrument Caution Never perform the operation while the system is energized Otherwise damage to equipment and electric shock may result 2 Remove the covers for the main body and the power supply unit 3 Remove the fuse holder cover 4 Replace the fuse Be sure to use the specified fuse to assure...

Page 53: ...e you purchased this instrument or our customer services department of our head office Trouble Check points and remedies Nothing appears on the display after turning on the power switch Ensure that the power supply voltage is correctly applied Ensure that power supply cable is connected Ensure that the fuse is not blown No output is transmitted even if the power is turned on Ensure that the signal...

Page 54: ... the converter are correct Ensure that the unit of flow rate displayed is correct Main display is flashing The flow rate exceeds the measurement precision compensation range Ensure that the differential pressure generated in the detector meets the following condition Differential pressure Static pressure 0 25 Output value exceeds 100 Ensure that the range is correctly set Ensure that the zero poin...

Page 55: ...exceeding the flow rate range Conditions beyond JIS standards differential pressure static pressure 0 25 Main display Flashing Flashing Flashing Flashing Instantaneous flow rate cost display HHHH displayed HHHH displayed URL display included Display output display HHHH displayed HHHH displayed Display Display Sub display Instantaneous flow rate cost display O L displayed OverFlow displayed Display...

Page 56: ...error message indicates any critical trouble of the main unit of this instrument Thus if it appears in the display area please contact our sales representatives at our branch sales office or our distributors where you purchased this instrument or our customer services department of our head office Error message Description of error CHAR PROM FAULT Abnormality in internal data SUSPECT INPUT Abnorma...

Page 57: ...y Pressure Pressure BASIC MENU Menu items that are set during operation MAINTENANCE MENU Menu items that are set during installation Main Disp Main display item setting Unit Unit setting Damping Time Damping time setting LowFlow Cost Low flow cut setting Leak Check Leak check setting Total Volume Cumulative flow rate Flow Rate Instantaneous flow rate Total Cost Cumulative cost Cost Instantaneous c...

Page 58: ...alues resetting screen Message appearing at zero adjust execution Are you sure Can the zero adjustment be executed Completely Zero adjustment completed SensorRange Over Differential pressure twice as high as the sensor range Zero over OK Zero point deviation considerable Message appearing at auto ranging Are you sure Can the auto ranging be executed OK Auto ranging completed Message appearing at t...

Page 59: ......

Page 60: ...to your use 3 Measures to be taken to secure the required level of the reliability and safety of your Equipment in your use Although azbil is constantly making efforts to improve the quality and reliability of Azbil Corporation s products there exists a possibility that parts and machinery may break down You are required to provide your Equipment with safety design such as fool proof design 1 and ...

Page 61: ...margin of your machine or equipment you are required to renew any Azbil Corporation s products every 5 to 10 years unless otherwise specified in specifications or instruction manuals System products field instruments sensors such as pressure flow level sensors regulating valves etc will reach the end of their life due to aged deterioration of parts For those parts that will reach the end of their ...

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Page 63: ...Document Number CM2 MVC200 2001 Document Name The Multivariable Air Flow Meter Model MVC10A 10F User s Manual Date 1st edition April 2006 3rd edition Jan 2020 Issued Edited by Azbil Corporation ...

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