Flow Center User Manual
Contents
1. M 095177 Current Mode Flow Change to Flow x DP Gas flow abs Gas flow norm The user is free of choice to change the mode 1f this is wanted for any reasons If this is done the device must be restarted Power off power on The simplest way is to just disconnect the communication cable and re attach it and restart the communication with Flow Center Errors in reading might occur if this is not done Do not disconnect the unit from Flow Center and connect it again The unit is still powered up after disconnection to Flow Center 61A7E15 FLOW MONITORS 10 Mode descriptions 10 1 DP Mode DP Mode configuration is used when you only need to measure the actual differential pressure Media is less important since you cannot display flow rate Flow Meters in DP mode is typically not used with our classic pipe sections that includes orifices We normally provide Flow Meters in DP mode with our connection blocks P8BR and P8SS more information about our connection blocks can be found in the M3 series manual 10 2 Flow Mode Flow mode configuration is used when measuring flows of incompressible liquids normally water and oil 10 3 Gas Flow Mode absolute norm Gas flow mode configuration 1s used when measuring flows of gases normally air When choosing gas flow mode there are two choices absolute or normalized Calculating the orifice plate used for the device when dealing with gases are most of the ti2. Sa P Load transmitter settings from file Action Load previously saved device settings ef Save transmitter settings to file Action Allows you to save device settings 61A7E15 FLOW MONITORS 5 Connect a device Connect the Flow Meter to your PC with the communication cable for M3 series and open Flow Center w Add new device The following input box will appear 9 Flow Center Add transmitter Add a new M transmitter FLOW MONITORS Serial port Add a new M transmitter with ID 250 V Autodetect Click on UPDATE to find all connected occupied USB ports Choose the port where the device is connected Click on OK and the device will be uploaded for communication The AUTODETECT can be unchecked to search and communicate with a specific device with a certain Modbus ID The MODBUS interaction is not yet fully developed and should be used with pre caution Once the device is connected it shows up with a green online icon followed by the units unique S N When clicking on the connected device you enter the read view which consists of 5 different sub pages where you can oversee Overview Displaying all measurements in one page Flow rate Differential pressure Temperature and Static pressures Note that the scaling is dependent on the settings saved on the device and measurements will be performed immediately as the unit 1s connected Overview Flow rate Differential
3. 5 Open the Setup flow _ center X X choose installer language and follow the setup wizard to install Available languages are Swedish and English Run the setup as administrator If you don t have the necessary privileges please contact your IT support before installing the software Flow Center does not work without the required plug in If you are to communicate with the M3 flow meter open the Setup Flow Center M plugin X X Choose installer language and follow the setup wizard to install Run the setup as administrator If you don t have the necessary privileges please contact your IT support before installing the software Install the driver K 114B for the communication cable The driver for the RS485 USB communication cable is available for download online at Eletta server http www eletta se en downloads softwaredrivers Run the setup as administrator If you don t have the necessary privileges please contact your IT support before installing the software Refer to the manual in the package for troubleshooting and system requirements for the USB RS485 converter Connect the communication cable to any USB port on your computer and the M3 unit Run Flow Center X X 61A7E15 FLOW MONITORS 4 Overview General Functions File M Help Flow Center FLOW MONITORS File Ze FC Setup Ctrl Alt Enter Action Change language P
4. is 4 100 NI min and not 10 100 NI min Flow DP Analog Out Lo 0 00 Lo 0 12 Lo 0 00 Min 0 00 Max 100 00 Min 0 00 Max 0 50 Min 4 00 Max 20 00 Min measurable Flow P2 Co 4 14 yd 10 28 yf 10 27 Min 0 00 Max 100 00 Min 0 00 Max 10 00 Min 0 00 Max 10 00 Turndown TP Coeffs Temperature HE z 3 E Abs Preassure 6 013 bar doai iii 38 57 Min 10 00 Max 80 00 11 Additional Functions 11 1 Save Load transmitter settings By clicking on amp Save transmitter settings to file you are able to save the configuration from the settings page to a separate file on your computer This can be convenient to use when there is a need to configure lots of units with the same setting where the user instead of writing all settings manually instead reads a setting file and save the new settings to the unit To load settings from file click on Load transmitter settings from file If the unit is not set to the same mode as to what the setting file was written for the following will be prompted on the screen M 104588 Load settings x You need to change mode before loading this file Do you want to change mode DP to Gas flow norm C Cance By clicking no the action is interrupted By clicking yes the unit is only changed to the new flow mode In order to save new settings the user must re load the settings file again Then the unit can be saved with th
5. or processing is not permitted Any other use of data and information 1s strictly prohibited without prior written permission from Eletta Flow AB Sweden 61A7E15 FLOW MONITORS 1 General Information Flow Center is a software developed by Eletta Flow to communicate with the Eletta M3 series Flow Meter The M3 series Flow Meters is used to measure and control flows of liquids and gases in pipes Flow Center is currently only available for use with Microsoft Windows The communication between the software and the Flow Meter is bi directional This means that the software reads existing data and parameters from the Flow Meter It also allows you to re configure the flow meter using the communication cable for M series The communication cable for M series is a USB cable with a RS 485 converter and is available to purchase from Eletta Flow 2 Technical specification for communication cable e Supply via USB for one connected final consumer U Out 11 8 VDC I Out max 40 mA e Measuring channel voltage input 0 12 VDC e Visual status and configuration display LED e Galvanic isolation e Total length 1 7 m e Driver package included with package 61A7E15 FLOW MONITORS 3 Installation Flow Center software M plug in and driver K 114B for the communication cable are available for download from http www eletta se en downloads softwaredrivers Check for the latest versions online 1 2 3 4
6. 0 000365 0 000447 4 000000 0 000000 2014 05 06 12 16 38 O 000000 0 000045 24 329246 0 000358 0 000403 4 800000 8 880000 FLOW MOMTORS www eletta com 61A7E15
7. 00 20mA 100 0 4 Low pass filter 16s v Information SIN 104588 Class 5 20 Version 13 17 Qmax 100 l min DP max 0 500 bar Prange 0 10 bar Trange 10 80 C Address 001 Mode Flow Port COM2 Discard Customized settings Factory defaults 61A7E15 FLOW MONITORS 7 1 Measurement range Custom tag Measurement range Qrange 0 100 0 l min DP range 0 500 0 mbar 7 Drop out 4 000 mbar x Here you can change the max flow and corresponding DP range Note that these values are related to the orifice in the pipe section and should not be changed without ordering a new orifice made according to new settings The Max pressure is the maximum allowed static pressure This is defined by the pressure transmitter installed in the Flow Meter Eletta provides three different transmitters with static pressure limitations of 10 25 and 50 bar There is also the option of custom tagging the unit to a specific name 7 1 1 Q range States the maximum flow for your specific orifice The value that is set as Q range will always correspond to 100 of the set DP range 7 1 2 DP range Determines the differential pressure span from where the transmitter calculates the flow The orifice plate installed must be calculated so that 100 flow corresponds to 100 DP that is set in the DP range field All orifice plates for the M3 series Flow Met
8. 21 Min 0 00 Max 100 00 Min 0 00 Max 500 00 Min 4 00 Max 20 00 Min measurable Flow P1 P2 EE O A ma LC 30 79 El 10 32 10 28 Min 0 00 Max 100 00 Min 0 00 Max 10000 00 Min 0 00 Max 10000 00 8 2 2 Drop out set too high If the cut out function is changed to for instance 15 mbar for a M310 with Flow mode setting For instance to filter out line pressure disturbances at a non zero flow the min value of the flow will be around 17 of max flow DP readings below 15 mbar will be considered as false and the unit will show 0 flow The turndown is 1 10 which should mean that the unit will display flow from 10 up to 100 But the start min flow value is now limited by the drop out function value E Flow Center 10 M 108588 Eletta Flow AB _ LL es Si bam zt Gee ELETTA Flow Center M Overview Flow rate Differential pressure Temperature Static pressures 104588 Flow DP Analog Out 7 17 45 I 3 04 17 45 Min 0 00 Max 100 00 Min 0 00 Max 500 00 Min 4 00 Max 20 00 Min measurable Flow P1 P2 Co 10 00 yf 10 43 fT 10 28 Min 0 00 Max 100 00 Min 0 00 Max 10000 00 Min 0 00 Max 10000 00 Turndown TP Coeffs Temperature EEEE Ea 9 Changing mode of the device Push the button An input box will appear Change mode FLOW MONITORS
9. FLOW MONITORS Flow Center User Manual With plug in for M3 series ye Flow Center 1 0 M 104588 Eletta Flow AB e e a File M Help Ye O amp ELETTA Flow Center FLOW MONITORS 4 104588 4 ae M il Flow rate Differential pressure Temperature Static pressures 104588 Information SN 104588 Class 5 20 Version 13 17 Qmax 100 l min DP max 500 mbar P range 0 10000 mbar Trange 10 80 C Address 001 Mode Flow Port COM2 61A7E15 FLOW MONITORS About this Manual This manual describes how to install and use Flow Center with the M plug in for the Eletta M3 series Flow Meter e The latest version of this manual is available for download on our website www eletta com e On our website you will also find other information such as leaflets newsletters application reports and software download Proprietary Rights This manual contains confidential technical data including trade secrets and proprietary information that are the property of Eletta Flow AB Sweden Any changes or alterations to downloaded or printed Eletta original documentation such as manuals drawings leaflets newsletters etc are not permitted without a written permission from Eletta Flow AB Sweden These data are only disclosed to you under permission of limited use within your company Use for manufacturing
10. can check in real time 61A7E15 FLOW MONITORS Flow Not active in DP mode DP Analog out Min measurable flow As determined by the dynamic turn down P1 Pressure upstream P2 Pressure downstream Turndown As determined by the ratio SQRT 100 FLOW DP DPmin device TP Coeffs Only active for Gas flow mode Temperature Measured on the sensor card of the device and not in the media et ee ee a ee Scaling and units can be altered real time and will be automatically displayed with new settings on the screen Note that these settings are only changed graphically and not saved to the unit If the device 1s disconnected and re connected the units and scaling values will be changed to match settings saved on the device 6 2 Flow rate Overview Flow rate Differential pressure Temperature Static pressures Total 971 Flow rate l min Show min max values J Show volume totalizer Reset totalizer Time frame 10s Output signals Current 6 23 mA 5 128 5 130 5 132 5 134 5 136 Time s The flow rate sub page is a real time graphically on going presentation of the flow in time The time frame is changeable There is also the option of showing volume totalizer or not The output analogue signal is also shown on the page 6 3 Differential pressure The differential pressure sub page is similar to flow rate sub page The output analogue signal is also shown on the page The time frame
11. e more sensitive to changes and will detect a more true pressure flow variation The signal will vary more in size in between readings and the device will perhaps be considered restless in output of indicated flow or differential pressure A high filter value will highly damp the output signal and will not be able to detect large variations in time and will be more or less a mean signal of a Os filter value even though there will be a small variation in time 61A7E15 FLOW MONITORS Overview Flow rate Differential pressure Temperature Static pressures oO o Differential pressure mbar 35 40 45 50 55 60 Time s An M310 with filter value of Os will be more sensitive to detect actual variations Overview Flow rate Differential pressure Temperature Static pressures 0 555 0 545 Differential pressure mbar 0 535 35 40 45 50 55 60 Time s The same M310 with filter value 26s will highly damp changes detections of variations Default setting from factory is 1 6s damping value This is a setting which should work for most applications 61A7E15 FLOW MONITORS 8 2 Drop out function and turndown The drop out function is a DP value under which the unit should consider measurements as a non zero flow condition The drop out function is to be considered as a min limit where the PT compensation should stop working and where the meter should interpret the DP signal as a non flow condition The drop
12. e new settings 61A7E15 FLOW MONITORS 11 2 Change MODBUS ID Click on amp Change MODBUS ID to set a specific identification N for the transmitter You can set an ID between 001 250 This is a usable function when you have many Flow Meters connected to your system at the same time using a MODBUS Protocol communication For more information on how to set up a MODBUS communication contact Eletta Flow The MODBUS interaction is not yet fully developed and should be used with pre caution 11 3 Creating log files Push to access the ability to log to file From here you are able to create log files that will be stored as a txt file on your computer At the bottom right you can choose where you want to store the file on your computer The time interval for each log point can be set between 1 second to 60 minutes To start logging check the checkbox located next to the time interval e i i M Plugin settings Data logger Select the trasnmitters you want to log from The green online icon changes during the logging session i ro M 095177 The log file information consists of date time flow rate DP temperature P1 and P2 static pressures mA output signal and accumulated volume Date and Time flow rate DP Temperature P1 static P2 static mA signal Acc volume 2014 05 06 12 16 36 9 000000 9 000080 24 327991 0 000335 0 000415 4 000000 0 000000 2014 05 06 12 16 37 0 000000 0 000081 24 327991
13. er are engraved with the max DP range that corresponds to max flow rate Normally the value in the DP range field is not to be changed Do not change this field without checking the orifice plate versus DP range 7 1 3 Drop out This field shows when the Flow Meter stops to measure When the differential pressure goes below the set value the output signal will go down to 4 mA and the indicated flow will go down to zero This is to prevent the Flow Meter showing erratic flow at zero condition The default value is set just below 10 of the max DP range If you see an unstable flow when you have a non flow condition you can raise this value to avoid seeing it For example vibrations can cause these erratic small values therefore you might want to cut them off 61A7E15 FLOW MONITORS 7 2 Pressure settings 7 2 1 Pressure setting DP FLOW mode Pressure settings SS a e z ta e z Default values for P1 and P2 For incompressible flow and DP mode there is the option of setting the transmitters to gauge pressure Zero bar g will remove the small pressure differences in between the two transmitters and then set the DP to zero bar g as a start value to gauge pressure measurement The calibration will take some time before stabilizing the values Click Save when you are satisfied with the calibration This is done at the factory at the on site atmospheric condition and will not be representative
14. ettings for the orifice plate If the DP range is changed the turndown will also be re calculated An M310 user setting of 100 flow at 250 mbar will result in a turndown of 1 7 where the 5 mbar now will represent a flow of 14 of full scale value The min measurable flow will be also automatically be re calculated with changed turndown Note that the turndown is rounded up to nearest integer Recommended settings are factory default values 8 2 1 No flow condition but device indicate flow If the M310 is used for gas flow showing flow when there is no flow in the system one should tweak the cut out value The reason why the device is showing flow is that the device is actually measuring a differential pressure reading thus interpreting this as a corresponding flow If the normal running state is say 8 bar g gasmode abs and the device is kept at atmospheric condition the device will try to compensate for the change in pressure and re scale the 100 DP so this state will match the same volumetric flow now at atmospheric pressure The 4 5 mbar will now correspond to a much higher flow value than before around 30 If the conditions here vary between 0 5 mbar which could be the case the device will show flow values 0 and 30 flow when there is no flow in the system 61A7E15 FLOW MONITORS Overview Gas flow rate abs Differential pressure Temperature Static pressures Flow DP Analog Out ae 28 21 0 83 yy 28
15. in the process The software has no ability to do this summation 61A7E15 FLOW MONITORS At normal running conditions the actual and normalized flow rate will be exactly the same It is only when P T conditions vary from normal running conditions where they deviate from each other It is important to understand that these modes compensate inversely of each other Flow l min T_std Density on the media pstd STP Lo a 2 At lower pressure the volume of the media is expanding In order to maintain the same volumetric flow as run under normal running condition the device re scale the 100 dP to a lower value to try to compensate for the change in pressure or temperature This will result in a lower turndown since the device now require a lower dP value thus lower flow GASFLOW ABS e e e o act lt p c P_ P Oo OOOO OOO At lower pressure the density of the media is less dense than normal running conditions In order to maintain the equal amount of massflow per unit time the device re scale the Normal running condition 100 dP to a higher value to try to compensate Calc coefficients 00000000 Te 00000000 00000000 p_c GASFLOW NORM for the change in pressure or temperature This will result in a higher turndown since the device now require demand a higher flow rate to pass the same amount of molecules per unit time thus a higher dP max Assume a unit M310 set for n
16. is changeable and so also the units Note that these settings are only changed graphically and not saved to the unit If the device is disconnected and re connected the units and scaling values will be changed to match settings saved on the device 61A7E15 FLOW MONITORS 6 4 Temperature The temperature sub page is similar to flow rate sub page The output analogue signal is also shown on the page The time frame 1s changeable and so also the units Note that these settings are only changed graphically and not saved to the unit If the device is disconnected and re connected the units and scaling values will be changed to match settings saved on the device 6 5 Static pressures Overview Flow rate Differential pressure Temperature Static pressures Show pressure sensor P1 ic E 1035 Min 0 Max 10000 Show pressure sensor P2 o 8 Min 0 Max 10000 Static pressures mbar en O N w Show min max values Time frame 30s z 1020 Output signals Current 4 00 mA Time s The static pressure sub page is similar to the other sub pages Here you can show both pressure measurements or choose to uncheck one of them The output analogue signal is also shown on the page The time frame is changeable and so also the units Note that these settings are only changed graphically and not saved to the unit If the device is disconnected and re connected the units and scaling values will be cha
17. me related to a STP calculation STP is Standard conditions for Temperature and Pressure If a flow value is related to this kind of condition the flow is always denoted as NI min or other unit This relation lock the calculation for a specific volumetric flow of a certain kind of gas with known density at STP state The STP is different world wide The orifice plate used in the device is then calculated with user settings 1 e calculation settings for temperature and pressure in which the system is working under normal conditions The device is then locked at this state and will from this Pressure Temperature compensate due to variations in the process The M3 unit has 2 different modes as to what the user prefers to compensate for or measure The denomination used in Flow Center is absolute or normalized flow Other denominations can be actual volumetric and standard flow Standard or normalized flow is the equivalent flow rate the gas would be moving if the temperature and pressure were at standard conditions It 1s usually the most useful measure of gas flow because it defines the mass flow number of molecules and heat carrying capacity of the gas Volumetric flow rate or actual flow rate 1s the actual volume flow of the gas exiting the flow meter The M3 device do not have the ability to function directly as a mass flow meter The summation must be done elsewhere and if necessary also be temperature adjusted if this parameter is not stable
18. nged to match settings saved on the device 61A7E15 FLOW MONITORS 7 Change settings on a device Push the Z Setup button to unlock the settings on the device The settings loaded will automatically be the settings on the device Do not change DP Q flow or Calc coefficients They are parameters connected to the bore size of the orifice plate Changes will cause errors in output Q range is set to 100 l min when delivered from Eletta factory regardless of which flow range the orifice plate is specified for This means that when you first connect your Flow Meter to Flow Center the flow rate reading will most likely appear incorrect unless you have a 100 l min specified orifice plate installed This does not mean that the mA output signal is incorrect The mA output signal is determined by that the installed orifice plate and the set DP range corresponds To get a correct reading in Flow Center you need to set Q range to the maximum range of your installed orifice plate File M Help a be Flow Center FLOW MON M 104588 M 104588 Flow Settings 104588 Customta Pressure settings Measurement range Zero bar g for P1 and P2 Max pressure 4 bar X Pl HHA bar x Qrange 0 100 0 Imin x P2 HHA bar X DP range 0 0 500 bar z Default values for P1 and P2 Dropout 0 004 bar Output signal 4mA 0 0
19. of the pressure conditions of all customer installations Always check the pressure settings before starting the measurement If necessary zero bar g the unit Original setting fabrication settings values can be retrieved by returning to default values This is mainly used for troubleshooting and should not be used as a run setting for this mode 7 2 2 Pressure setting GAS mode Pressure settings Set P1 and P2 to atmospheric pressure Li PB z pm ou Oo y o ea z Default values for P1 and P2 Gauge pressure setting for gas flow is not possible Here you can either reset the transmitters to default values or re calibrate and save the current atmospheric pressure condition as measured with the unit Setting the P1 and P2 to atmospheric pressure condition will do the same as the zero bar g action for DP flow It will measure the absolute pressures and remove small differences in between the transmitters The calibration will take some time before stabilizing the values Click Save when you are satisfied with the calibration This is done at the factory at the on site atmospheric condition and will not be representative of the pressure conditions of all customer installations Always check the pressure settings before starting the measurement If necessary set P1 and P2 to atmospheric pressure Original setting fabrication settings values can be retrieved by returning to default value
20. ormal running conditions at 5 bar g 25 deg C and 100 NI min This is the response from Flow Center at atmospheric condition for Gas flow ABS The gas will be expanded at this state and will only measure between 5 and around 80 mbar Turndown 1 4 in Q The device has been forced to re scale itself in order to maintain the volumetric flow rate at this pressure to match it to the calculation coefficients This will affect the units ability to measure flow and the flow range from standard 10 100 NI min is now 24 100 Nl min Remember that the turndown is rounded to nearest integer Overview Gas flow rate abs Differential pressure Temperature Static pressures Flow DP Analog Out Lo 0 00 Lo 0 15 Lo 0 00 Min 0 00 Max 100 00 Min 0 00 Max 0 50 Min 4 00 Max 20 00 Min measurable Flow P2 Co 24 18 yf 10 27 Min 0 00 Max 100 00 Min 0 00 Max 10 00 Min 0 00 Max 10 00 Turndown TP Coeffs Temperature Li l q Abs Preassure 6 013 bar Temperature 25 C 61A7E15 FLOW MONITORS This is the response from Flow Center at atmospheric condition for Gas flow NORM The gas has now become less dense and the device now demands a higher DP in order to maintain the same amount of mass flow per unit time The device will now measure between 5 and 2900 mbar Turndown 1 24 in Q This will actually increase the units ability to measure the flow range since the range now
21. out value will be set to 4mbar for the M310 10 mbar for the M325 and 20 mbar for the M350 This value is somewhat related to the accuracy of the absolute transmitter which is around 0 05 of the pressure rating which for the M310 will be a measurement of around Smbar The 5 mbar will be the DP min device value for calculating the turndown One can change the drop out value but this could affect the displayed Q flow in relation to what the turndown is at the moment The drop out is convenient to use as a filter value when there are disturbances in line pressure at a zero flow state This will set a min dP limit where the flow will start to display For gas mode there is no actual min gauge value of the static pressure where the unit will not try to compensate And a small disturbance in line pressure could result in a false detection of flow especially if the unit is set to gasflow abs where a turndown of 1 3 is a normal turndown at atmospheric pressure The 5 mbar DP value will then represent as much as 33 flow The turndown is an accuracy range of the device and should act as a guide of the capacity This value is a dynamic value which will be automatically re scaled to represent 100 flow The M310 M325 and M350 will be from factory always configured for a turndown of 1 10 which for the DP measurement represent a measurement range of 1 100 in DP 5 500 mbar for M310 12 5 1250 mbar for M325 and 25 2500 mbar for M350 These are the calculation s
22. pressure Temperature Static pressures 61A7E15 FLOW MONITORS On the left bottom side of the screen is the device information frame ee Information SIN 104588 5 20 13 17 100 l min 0 500 bar 0 10 bar Trange 10 80 C Address 001 Mode Port Class Version Q max DP max P range Flow COM2 Here you can see e S N Serial number e Class Transmitter class e Version Software version written to the sensor card of the device Keller software e Qmax Maximum flow saved to the unit e DP max Differential pressure over orifice to match Qmax e Prange Static pressure range min max T range Temperature range min max e Address ModBus ID e Mode What mode the device is set to measure and report values for e Port What COM port the device is connected to 6 Measurement Sub pages 6 1 Overview Overview Flow rate Differential pressure Temperature Flow 0 00 Min 0 00 Max 100 00 Min measurable Flow Ld 10 00 Min 0 00 Max 100 00 Turndown Fl l tu Static pressures DP 0 06 Min 0 00 Max 500 00 P1 E 107 Min 0 00 Max 10000 00 TP Coeffs Analog Out in L Joo Min 4 00 Max 20 00 P2 fd 10 27 Min 0 00 Max 10000 00 Temperature Ld 39 38 Min 10 00 Max 80 00 The overview is a collection of all vital parameters as measured by the device Here you
23. rogram must be restarted Quit Ctrl Q Action Quit program M M Setup Ctrl Return Action Access log function settings Also accessible using button sje M Add a new transmitter Ctrl N Action Add a new M to Flow Center Also accessible using 7 button Help FC About Action Info about the software and version T M About plugin Action Info about plug in 61A7E15 FLOW MONITORS ye Flow Center 1 0 M 104588 Eletta Flow AB Ye GOT Flow Center FLOW MONITORS a 7e M Overview Flowrate Differential pressure Temperature Static pressures 104588 New functions will first appear when a device is connected with Flow Center Ye Setup Action Configure settings for the device a Add new device Action Connects a new device to Flow Center Remove device communication Action Disconnects a device a i Change MODBUS ID Action Allows you to set a specific identification No for each devise The MODBUS interaction is not yet fully developed and should be used with pre caution w Change mode Action Change the mode you use the M3 device 4 different modes are supported with the M3 unit DP Differential pressure measurement Flow UIncompressible flow Gas flow ABS Volumetric flow mode Gas flow NORM Mass flow mode Flow value must be density multiplied real time wrt current temperature and absolute pressure Not supported by software
24. s This is mainly used for troubleshooting and should not be used as a setting for this mode 61A7E15 FLOW MONITORS 7 3 Calculation coefficients for GAS mode Gas flow modes have an extra setting to define the standard ordinary or stationary customer operation settings line pressure and temperature This is information the device must know in order to have a P T compensation that will work satisfactory Do not change these values They are connected to the orifice bore Changes will disrupt measurement Pressure settings o Set P1 and P2 to atmospheric pressure aA oi E 5 C mi JE Default values for P1 and P2 Calc coefficients Absolute Pressure 9013 0 mbar Temperature 0 000 c 7 4 Output signal Output signal 4mA 0 000 A 20mA 100 0 ed Low pass filter 26s 7 The user can re scale the 4 20 mA output signal The output can be set inversely also letting the 0 flow be 20 mA and 100 flow be 4 mA You can change the low pass filter value if there is a need to make the device more sensitive to display changes or to make the unit more slow to detect changes in differential pressure 8 Impact of settings 8 1 Low pass filter setting The low pass filter is a damping that will be applied to the calculation of the output signal If the filter value is set to 0 there will be no damping of the signal and will thus make the devic
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