Home

M910 manual - meatest.cz

1. 26 Operation manual MEATEST Battery operated magnetic flowmeter M930 Example Command FTC 6 lt cr gt sets time constant 6 seconds After query FLF lt cr gt flowmeter returns O lt cr gt Min Max flowrates Reset CLRMM Command resets Min Flowrate and Min Flowrate values M930 confirms execution with string 0k lt cr gt Example Command CLRMM lt cr gt resets both min max values Nominal flowrate reading RQN Response contains actual flowmeters Nominal flowrate Qy Example If query RQN lt cr gt is sent flowmeter returns response in format 80 00 lt cr gt for nominal flowrate 80 m3 h 6 2 2 2 Volume parameters Volume unit FVS lt CPD gt 0 1 2 3 4 Following units can be set e 0 m e 1 1 e 2 UG e 3 IG e 4 User M930 confirms execution with string 0k lt cr gt Example Command FVS 0 lt cr gt sets volume unit m3 If query FVS lt cr gt is sent flowmeter returns response in format 0 lt cr gt Volume user unit FVU lt CPD gt Command sets text for volume user unit lt CPD gt It represents user units expressed as 5 ASCII characters M930 confirms execution with string Ok lt cr gt In case of query M930 returns set user unit Example Command FVU dm3 lt cr gt sets volume user unit dm3 After query FVU lt cr gt flowmeter returns string dm3 lt cr gt
2. Conversion constant for volume user unit FVC lt DNPD gt Operation manual 27 Battery operated magnetic flowmeter M930 MEATEST Command sets conversion constant for volume user unit with respect to I lt DNPD gt It represents a constant which is calculated as a ratio between volume in user unit and volume in basic unit I For example constant for m3 is 0 001 M930 confirms execution with string Ok lt cr gt In case of query M930 returns set constant Example Command FVC 0 001l lt cr gt sets constant 0 001 After query FVC lt cr gt flowmeter returns 0 001000 gt Total volume counter Reset CLRVO Command resets Total volume counter including the positive and negative volume counter M930 confirms execution with string 0k lt cr gt Example Command CLRVO lt cr gt resets the Total volume counters Positive and negative volume counter Reset CLRVM Command resets Pos Neg volume counter including the positive and negative volume counter M930 confirms execution with string 0k lt cr gt Example Command CLRVM lt cr gt resets the Positive and negative volume counters Auxiliary volume counter Reset CLRAV Command resets Auxiliary volume counter M930 confirms execution with string 0k lt cr gt Example Command CLRAV lt cr gt resets the Auxiliary volume counter 6 2 2 3 Datalogger parameters Datalogger step DST
3. Flange Steel 1 0402 or higher Dimensions according to EN1092 DIN2501 BS 4504 ANSI B16 5 Sanitary DIN11851 flangeless wafer style Protection category e Compact version IP67 e Remote version sensor IP68 converter IP65 optionally IP67 Communication e USB Modbus Displayed values e Flowrate m3 h 1 s US Gal min Imperial Gal min user Volume m3 1 US Gal Imperial Gal user e Positive total negative and auxiliary clearable daily volume Control e Capacitive buttons e USB Other features Test of excitation coils sensor electronic unit e Internal temperature and power supply diagnostic e Real time clock e Empty pipe indication e Datalogger 100000 records programmable sample rate e Registration of min and max flowrate including date and time 44 Operation manual MEATEST Battery operated magnetic flowmeter M930 12 Ordering information options Liner M930 VOxxx hard rubber M930 V 1xxx soft rubber M930 V2xxx teflon PTFE Electrodes M930 Vx0xx CrNi steel M930 Vx1xx hastelloy C276 M930 Vx2xx tantalum Construction M930 Vxxx0 compact version M930 Vxxx1 remote version 12 1 Example of order M930 V0000 DN50 PN16 Liner hard rubber Electrodes CrNi steel Construction compact version Nominal diameter 50 mm Nominal pressure 16 bar M930 V2120 DN15 PN25 Liner PTFE Electrodes hastelloy C276 Construction compact version Nominal diameter 15 mm
4. 3 14 80 141 283 353 1 6 300 61 123 153 4 22 150 221 442 552 2 500 sa 177 221 6 32 200 318 636 795 3 16 100 157 314 393 11 57 300 565 1131 1414 Qiz minimum applicable flowrate minimum flowrate with guaranteed accuracy Q5 recommended minimum flowrate minimum flowrate with best accuracy Qn recommended nominal flowrate expected working flowrate Qso recommended maximum flowrate maximum flowrate for industrial use Qio Maximum applicable flowrate maximum flowrate with guaranteed accuracy Qmax Maximum applicable overload Q125 flowmeter is still measuring Table 2 M930 flowrates A sensor diameter should be chosen to keep real flowrate between Qs and Qso because in this range the flowmeter has the best accuracy Operation manual 4 Battery operated magnetic flowmeter M930 MEATEST 10 Type plate Compact version The type plate is located on the sensor The following information is on the plate Flow direction Type DN nominal diameter 10 800 mm PN nominal pressure 6 25 x100kPa M930 V0000 MEATEST LMEATEST pn pn 100 16 Serial S n 310541 number Zelezna 509 3 Year 2009 619 00 Brno 0 80 m h st com Production Year Flowrate range Protection Manufacturer 42 Operation manual MEATEST Battery operated magnetic flowmeter M930 Remote version T
5. 5 3 Menu Basic rules MENU Using the Setup menu can be changed all parameters of the flowmeter Menu is organized as tree type structure Meaning of keys is at parameter selection OK confirmation of selected parameter a return one level back The folder names are written in capital letters individual items are written small letters 5 4 Setup menu SETUP In this menu the flowmeter parameters can be changed Access to the Setup menu is after pushing the MENU key from the Main menu Access is protected by password 5 HEHU Correct password must be entered before entering Setup menu Lt a e Without correct password the access to the Setup menu is refused f or Default factory password is 00000 Password is entered by ENTER EH pressing t keys and confirmed by pressing the OK key Return to the main menu is possible by pressing the C key apog After entering correct password the flowmeter displays actual access level for app 3s There are three levels of access according to the password 1 BASIC default value is 00000 This level allows changing user settings of the flowmeter 2 CALIBRATION default value is 10000 This level allows changing user settings and calibration data 3 SERVICE only for service engineers 5 4 1 Flowmeter configuration FLOWMETER Item serves for the flowmeter configuration After pushing key next item CALIBRATION is
6. If query RES lt cr gt is sent flowmeter returns response in format 0 lt cr gt Operation manual 35 Battery operated magnetic flowmeter M930 MEATEST 7 Error messages When any error occurs the flowmeter will display an error message Errors can arise because of e Incorrect control i e faulty connection to the flowmeter grounding etc e Flowmeter failure In case of any error the error message is displayed on the display for approx 1 to 5 seconds The same error message can be read by computer command IER After switching on an internal test of the hardware is performed If there were any error during the power on test the flowmeter displays the appropriate error message Types of errors and methods of troubleshooting if available are in following table ae Troubleshooting ba over Internal memory error Internal error Turn the flowmeter off and after 5 s turn on If the error will appear again contact manufacturer 120 Temperature Ambient temperature error error 121 Int voltage Internal voltage error Internal error Turn the flowmeter off and after 5 s turn on If the error will appear again contact manufacturer 122 Excitation open Resistance of excitation Resistance of excitation coils is too high open circuit coils is higher than 250 Check sensor connection Ohm 125 Empty pipe No liquid in pipe Fill the pipe with liquid In case there is liquid in the pipe cle
7. H flowrate limit constant It represents hysteresis by evaluating limits PF1 and PF2 Auxiliary volume counter second Total Volume counter Can be cleared by pushing key It is usually used for measuring volume during day month etc USB universal serial bus It enables remote control of instruments by a computer 46 Operation manual MEATEST Battery operated magnetic flowmeter M930 Appendix A Measuring principle The flowmeter is designed for electrically conductive fluids Measurement is based on Faraday s law of induction according to which a voltage is induced in an electrically conductive body which passes through a magnetic field The following expression is applicable to the voltage U KxBxvxD where U induced voltage K an instrument constant B magnetic field strength v mean velocity D pipe diameter Thus the induced voltage is proportional to the mean flow velocity when the field strength is constant Inside the electromagnetic flowmeter the fluid passes through a magnetic field applied perpendicular to the direction of flow An electric voltage is induced by the movement of the fluid which must have a minimum electrical conductivity This is proportional to the mean flow velocity and thus to the volume of flow The induced voltage signal is picked up by two electrodes which are in conductive contact with the fluid and transmitted to a signal converter for a standardized output s
8. lt CPD gt 0 1 2 3 4 5 6 7 8 9 Datalogger can be set Datalogger is Off Datalogger sampling rate is 5 minutes Datalogger sampling rate is 10 minutes Datalogger sampling rate is 15 minutes Datalogger sampling rate is 30 minutes Datalogger sampling rate is 45 minutes Datalogger sampling rate is 60 minutes Datalogger sampling rate is 120 minutes Datalogger sampling rate is 180 minutes Datalogger sampling rate is 240 minutes Oon oDcnunanRA UNG 28 Operation manual MEATEST Battery operated magnetic flowmeter M930 M930 confirms datalogger step with string Ok lt cr gt Example Command DST 0 lt cr gt switches datalogger Off If query DST lt cr gt is sent flowmeter returns response in format 0 lt cr gt Datalogger number of samples DNR Response contains number of flowrate samples stored in datalogger Example If query DNR lt cr gt is sent flowmeter returns response in format 252 lt cr gt for 252 samples in datalogger Datalogger filling percentage DPC Response contains datalogger filling in percent Example If query DPC lt cr gt is sent flowmeter returns response in format 14 lt cr gt for 14 datalogger full Datalogger filling bytes DBT Response contains datalogger filling in bytes Example If query DBT lt cr gt is sent flowmeter returns response in format 1850 lt cr gt for 1850 bytes used Datalogger reading text fo
9. selected After pushing OK key following menu is displayed 5 4 1 1 Flowrate parameters FLOW Function enables you to set flowrate unit resolution and other flowrate parameters 5 4 1 1 1 Flowrate units Unit This item allows to set flowrate units Available units are l s litres per second m3 h cubic metres per hour UG m US gallons per minute IG m imperial gallons per minute 16 Operation manual MEATEST Battery operated magnetic flowmeter M930 User user defined unit factory set is l h litres per hour user defined unit can be changed by computer only 5 4 1 1 2 User unit name User unit This item allows to set the name of user unit Maximal length is five letters 5 4 1 1 3 User unit conversion constant User constant This item allows to set the conversion constant for user unit This constant is calculated as the ratio between flowrate in l s and flowrate in user unit CALIBRATION access is required 5 4 1 1 4 Flowrate direction Direction This item allows to switch between Positive and Negative flow direction change the sign in flowrate value Note Flowmeters are working in both flow directions However standard calibration is made for positive direction only 5 4 1 1 5 Low flow cutoff Low fl off This item allows to set limit for suppressing low flowrates Available range is according to the nominal diameter Note All flowrates below this value will be displayed
10. 2 Electronic unit remote version The picture shows dimensions of the electronic unit for the remote version Dimensions are in millimetres Weight 5 1 kg 38 Operation manual MEATEST Battery operated magnetic flowmeter M930 9 1 3 Sensor In the table below are the dimensions of the sensor for compact version In case of remote version add 120 millimetres to dimension A for cable gland and cable Flanges in DIN version meet standard EN1092 Flanges in ANSI version meet requirements of ANSI B 16 5 standard DN mm PN bar D mm A mm L mm Weight kg 10 16 90 140 150 2 5 15 16 95 145 200 3 20 16 105 150 200 3 5 25 16 115 155 200 4 32 16 140 165 200 5 40 16 150 175 200 5 50 16 165 185 200 7 65 16 185 200 200 8 5 80 16 200 215 200 10 100 16 220 235 250 13 125 16 250 265 250 17 150 16 285 295 300 22 200 16 340 355 350 31 250 10 395 435 450 44 Table 1 M930 dimensions and weights DIN flanges Operation manual 39 Battery operated magnetic flowmeter M930 MEATEST 9 2 Used materials Electromagnetic flowmeter is made from materials which meet international standards and conventions Liner Hard rubber as standard Teflon PTFE Electrodes CrNi stainless steel 1 4571 as standard Hastelloy C276 Tantalum Sensor tube Stainless steel 1 4201 dimensions according to DIN 17457 Flange Steel 1 0402 or higher dimensions according to EN
11. access level CALIBRATION 5 4 3 4 3 Clear on main screen Clear on screen This item allows to clear auxiliary volume and min max flowrates without password direct from the Main menu If item is enabled the password is not required 5 4 3 5 Battery administration BATTERY This item allows battery administration 20 Operation manual MEATEST Battery operated magnetic flowmeter M930 5 4 3 5 1 Size of battery Type This item allows to set size of battery pack You can select one of following types 2 cells 4 cells 5 4 3 5 2 Change new This item use only if you want change battery After select and confirm yes is activate battery replacement 5 4 3 6 Service information INFO This item displays internal measured values These values can be used for diagnostic 5 4 3 6 1 Serial number Serial number This item displays flowmeter s serial number as xxxxxx six digits 5 4 3 6 2 Firmware version Version SW This item displays internal firmware version as FW x xx 5 4 3 6 3 Hardware version Version HW This item displays internal hardware version as HW x xx 5 4 3 6 4 Nominal sensor diameter DN Diameter This item displays nominal sensor diameter in mm Diameter can be changed with access level SERVICE 5 4 3 6 5 Internal temperature Int temp This item measures internal temperature Optimal range is 20 to 75 C 5 4 3 6 6 Battery voltage Volt battery T
12. as 0 00 This setting is valid for display and all outputs 5 4 1 1 6 Coils excitation time Excitation This items allows to set the time between flow measurement The value has a significant impact on battery life Following frequencies can be set ls battery life 5 months 5s battery life 30 months 15s battery life 5 years 30s battery life 7 years 5 4 1 1 7 Moving average time constant Time const This item allows to change the time for moving average calculating Available range is between 4 and 20 s 5 4 1 1 8 Nominal flowrate range RANGE Function enables you to change the nominal flowrate range This is the auxiliary constant for easy configuration of flowmeter s outputs There is no dependency between flowmeter s accuracy and this constant 5 4 1 2 Volume parameters VOLUME This item allows to set volume unit resolution and other volume parameters S4 d2 Volume units Unit This item allows to set volume units Available units are l litres m3 cubic metres UG US gallons IG US gallons User user defined unit factory set is l litres user defined unit can be changed by computer only Operation manual 17 Battery operated magnetic flowmeter M930 MEATEST 5 4 1 2 2 User unit name User unit This item allows to set the name of user unit Maximal length is four letters 5 4 1 2 3 User unit conversion constant User constant This item allows to set the conversion constant for user un
13. for bearing CE mark e Electromagnetic flowmeter electronic unit both remote and compact version meet safety requirements according to standard EN 61010 1 including amendment A2 e Electromagnetic flowmeter electronic unit both remote and compact version meets EMC requirements according to standard EN 61000 3 EN 61000 4 EN 61000 6 e Pipe with sensor meets requirements of Pressure Equipment Directive 97 23 EC e Both the pipe and electronic unit meet the requirements of degree of protection provided by enclosure level IP67 according to EN 60529 IEC 529 Operation manual 5 Battery operated magnetic flowmeter M930 MEATEST 1 3 Warranty Within the manufacturers general supply conditions all material and manufacturing faults are covered by that It is up to us whether the warranty obligation includes a repair free of charge or corresponding replacement Place of the warranty obligation is Czech Republic Further claims on compensation especially for loss of production or resultant of damages are strictly excluded Any defects caused by improper use are absolutely not included in the warranty Excluded from warranty are also expendable items as i e accumulators batteries pushbuttons after attained life time ribbons etc In case of a warranty claim the user is asked to give detailed description of the defect and also of the application for which you use the product This information is important in order to avoid time and co
14. is recommended to install the sensor in a section of straight pipe with at least 5 times the pipe diameter before sensor and 3 times after sensor Pipe reducers If the pipe diameter is not the same as the diameter of sensor then pipe reducers can be used So as not to lose accuracy of the measurement the slope of reducers should not exceed 8 8 Operation manual MEATEST Battery operated magnetic flowmeter M930 Vertical mounting When the sensor is mounted on a vertical section of pipe the flow direction must be upwards In the case of a downward flow direction air bubbles can collect in the sensor and the measurement could be unstable and inaccurate Pumps Never install the sensor on the suction side of a pump or on a section of pipe where a vacuum is possible Operation manual 9 Battery operated magnetic flowmeter M930 MEATEST Valves Suitable location of a shutoff valve is downstream of a sensor Removal during maintenance If the application requires removal of the sensor for periodic maintenance it is recommended to install a bypass section as the following drawing N a TR Position of electrodes The axis of measuring electrodes must be approximately horizontal see picture YES 10 Operation manual MEATEST Battery operated magnetic flowmeter M930 Vibration To avoid mechanical damage protect both electronic unit and sensor
15. screw connection for an earthing wire This screw has to be connected to the flange on the pipeline Use Copper wire to connect between the flange and the earth screw on the sensor If the pipeline is manufactured from a non electrically conductive material or if the pipe is lined with a similar material special grounding rings must be installed between flanges Note The flowmeter must not be switched on if the sensor is not connected earthed to the rest of pipeline Sensor grounding without grounding rings Sensor grounding with grounding rings 12 Operation manual MEATEST Battery operated magnetic flowmeter M930 4 Electronic unit description 4 1 Front panel display 1 Capacitive buttons Two capacitive buttons allows control of all flowmeter s functions Buttons are activated by placing a finger on isolated area Both buttons has two levels of activation short and long activation Functions for both levels are shown on display Short activation less than 0 7 s Long activation more than 0 7 s Example rm Top button Short activation switches display to the next window ma Long activation resets auxiliary volume MEHL Bottom button Short activation displays flow meter s MENU There is no function for long activation 2 Display Graphic LCD is used to display the total volume instantaneous flowrate actual function of capacitive buttons and auxiliary information The type of unit
16. sets new date March 5 2002 After query FDT lt cr gt flowmeter returns 05 03 2002 lt cr gt Date format setting FDF lt CPD gt 0 1 2 3 4 5 6 You can select one of following items e 0 M D Y e 1 M D Y e 2 D M Y e 3 DMY e 4 D M Y e 5 Y M D e 6 Y M D M930 confirms completion with string Ok lt cr gt Example Command FDF O lt cr gt sets the date format D M Y If query FDF lt cr gt is sent flowmeter returns response in format 0 lt cr gt 6 2 4 3 Password setting Password PSW lt DNPD gt Command enters password that enables access to flowmeter s settings Password can be change with new command PSW Example Command PSW 12345 lt cr gt enters password 12345 Actual access level PAL lt CPD gt 0 1 2 3 Command can set the access level to 0 Query returns the actual access level Available levels e 0 Without access e Basic access level e 2 Calibration access level e 3 Service access level Example If query PAL lt cr gt is sent flowmeter returns response in format 2 lt cr gt for Calibration access level Command PALO lt cr gt sets the flowmeter to access level 0 without access Operation manual 33 Battery operated magnetic flowmeter M930 MEATEST Direct reset from the Main menu FME lt CPD gt 0 1 Command enables the possibility to reset Auxiliary volume and Min Max flowrate direct from the Main
17. 1092 DIN2501 BS 4504 ANSI B16 5 Sanitary DIN11851 flangeless wafer style 40 Operation manual MEATEST Battery operated magnetic flowmeter M930 9 3 Flowrate versus diameter The choice of flowrate for an electromagnetic flowmeter depends on the diameter of the sensor The higher pipe diameter the higher flowrate can be measured A determining parameter for flowrates is maximum velocity of the liquid Maximum velocity is the speed where the flow of liquid inside pipe is still laminar In M930 it is limited to 10m s with 125 overload Speed over 10 m s is usually too high for industrial applications Such diameter of pipe is usually selected where expected flowrate is between Q5 and Qsoq In the table bellow applicable flowrates for various diameters is displayed in units 1 s and m hr Fiowaespis S Flowrates m3 h DN Qe Qon E Qo Qoo Quax Qe Ose MMMM Oso Qion Quax 2 83 0 02 0 09 0 50 0 88 1 77 2 21 0 06 0 32 2 00 3 18 6 36 0 03 0 16 0 90 1 57 3 14 3 93 0 11 0 57 3 20 5 65 11 31 14 14 0 05 0 25 4 40 2 45 4 91 6 14 0 18 0 88 5 00 8 84 17 67 22 09 pos os im es 2s wz os 2a Mia eee a52 so o2 10 60 98 196 245 07 35 200 353 70 7 88 os 17 90 166 332 415 12 60 350 597 119 5 149 3 o5 25 140 25 1 50 3 62 8 1 8 9 0 50 0 905 181 0 226 2 08 39 200 39 3 78 5 98 2
18. M930 1 Basic information 1 1 Basic features The inductive flow meter M 930 is designed to measure indicate and record the instantaneous and total flow of the conductive media flowing through the sensor The flow meter M 930 records both forward and reverse flows As there are no moving parts in the flow profile the M 930 can be used to measure extremely dirty liquids containing solids The only limitation is that the flowmeter can be used solely with conductive liquids Range of applications The inductive flow meter M 930 is for use in the Chemical Industry Paper Industry Water and Wastewater Treatment Industry and most other process industries Features The inductive flowmeter M 930 is a highly accurate and stable device The construction of the M 930 flowmeter uses components with long term time and temperature stability Configuration data is backed up and can be recovered after a power failure The back up structure enables data recovery even if a partial loss of data occurs as a result of e g high level electrostatic discharge or a noisy power supply Internal CPU provides all functions usually built in electronic flow meters incl low flow rate correction frequency response setting bandwidth of sensitivity setting at low flow rates etc Power supply M930 is supplied from internal lithium battery and doesn t requires external power supply 1 2 Standards and approvals Electromagnetic flowmeter is conformed to requirements
19. M930 Battery operated magnetic flowmeter User s manual MEATEST MEATEST Battery operated magnetic flowmeter M930 1 Basic information 3 1 1 Basic features 5 1 2 Standards and approvals 5 1 3 Warranty 6 2 Preparing for start up 7 2 1 Inspecting contents of the package 7 3 Installation 8 3 1 Sensor location 8 3 2 Battery connection 11 3 3 Battery replacing 11 3 4 Electric connection between converter and sensor Remote version Il 3 5 Sensor grounding 12 4 Electronic unit description 13 4 1 Front panel display 13 4 2 USB 14 5 Operation 15 5 1 Main menu 15 5 1 1 Total Volume 15 5 1 2 Current Flowrate 15 5 1 3 Positive and Negative Volume 15 5 1 4 Auxiliary Volume 15 5 1 5 Datalogger periodical flow rate record 15 5 2 Internal backup system 16 5 3 Menu Basic rules MENU 16 5 4 Setup menu SETUP 16 5 4 1 Flowmeter configuration FLOWMETER 16 5 4 1 1 Flowrate parameters FLOW 16 5 4 1 2 Volume parameters VOLUME 17 5 4 1 3 Datalogger parameters DATALOGGER 18 5 4 2 Calibration menu CALIBRATION 18 5 4 2 1 Number of Calibration Points Num of cal point 19 5 4 2 2 Calibration point 1 CAL POINT 1 19 5 4 2 3 Calibration point 2 CAL POINT 2 19 5 4 2 4 Calibration point 3 CAL POINT 3 19 5 4 2 5 Calibration point 4 CAL POINT 4 19 5 4 2 6 Original calibration settings Orig cal settings 19 5 4 3 General settings GE
20. NERAL 19 5 4 3 1 Interface parameters USB RS232 19 5 4 3 2 Display parameters DISPLAY 20 5 4 3 3 Real time setting DATE TIME 20 5 4 3 4 Password setting USER ACCESS 20 5 4 3 5 Battery administration BATTERY 20 5 4 3 6 Service information INFO 21 5 5 Nominal values standard factory setting 22 6 System control 23 6 1 Command syntax 23 6 2 Command list 24 6 2 1 Main menu 24 6 2 2 Flowmeter 25 6 2 2 1 Flowrate parameters 25 Operation manual version 10 3 Battery operated magnetic flowmeter M930 MEATEST 6 2 2 2 Volume parameters 27 6 2 2 3 Datalogger parameters 28 6 2 3 Calibration 31 6 2 4 General 31 6 2 4 1 Display parameters 31 6 2 4 2 Real time clock setting 32 6 2 4 3 Password setting 33 6 2 4 4 Service information 34 6 2 4 5 Error messages 35 7 Error messages 36 8 Maintenance 37 8 1 Advice for correct operation 37 8 2 Periodical maintenance 37 8 3 What to do in case of failure 37 9 Application information 38 9 1 Weight and dimensions 38 9 1 1 Electronic unit compact version 38 9 1 2 Electronic unit remote version 38 9 1 3 Sensor 39 9 2 Used materials 40 9 3 Flowrate versus diameter 41 10 Type plate 42 11 Technical data ef 12 Ordering information options 45 12 1 Example of order 45 13 Terminology 46 Appendix A Measuring principle 47 Appendix B M930 Menu structure 48 4 Operation manual MEATEST Battery operated magnetic flowmeter
21. Nominal pressure 25 bar Operation manual 45 Battery operated magnetic flowmeter M930 MEATEST 13 Terminology Special symbols and terms Flowrates Qi minimum applicable flowrate the least flowrate which has guaranteed measuring accuracy depends on diameter see table 2 M930 flowrates Qs recommended minimum flowrate least flowrate which has the best measuring accuracy depends on diameter see table 2 M930 flowrates Qn recommended nominal flowrate nominal flowrate in which is flowmeter usually calibrated depends on diameter see table 2 M930 flowrates You can predetermine this nominal flowrate in your order Qso recommended maximum flowrate maximum flowrate which is usually used in industrial applications depends on diameter see table 2 M930 flowrates Qioo Maximum applicable flowrate flowrate limit which has guaranteed measuring accuracy depends on diameter see table 2 M930 flowrates Qmax maximum applicable overload Q 125 maximum flowrate which can be still measured depends on diameter see table 2 M930 flowrates Abbreviations QP impulse output constant It represents volume for 1 impulse PF1 flowrate limit constant It represents low limit flowrate Crossing this limit activates the appropriate digital output PF2 flowrate limit constant It represents high limit flowrate Crossing this limit activates the appropriate digital output
22. against mechanical vibrations When strong vibrations are possible both the input and output pipe must be mechanically fixed or the remote version with a separate electronic unit should be used Overheating To avoid overheating the electronic unit should be protected against direct sunlight especially in areas with a warm climate with ambient temperatures over 30 C If necessary a sunshade has to be mounted over the electronic unit or a remote version with a separate electronic unit should be used 3 2 Battery connection The flowmeter is delivered with disconnected internal battery Following procedure should be used to connect battery after installation the flowmeter e Unscrew the back cover using the special wrench standard part of delivery e Connect the 10 pin flat cable to the connector highlighted in the picture e Screw on the back cover 3 3 Battery replacing The battery life time depends on excitation frequency flowmeter settings and ambient temperature Terms shortening battery life e Short excitation time e USB connecting e Active display If the battery indicates low state remove the battery by the following steps 1 Activate MENU SETUP GENERAL BATTERY Change new yes You will be prompted to inserting new battery 2 Insert new battery 3 Check date and time 3 4 Electric connection between converter and sensor Remote version For remote version converter and flanged sensor are con
23. an electrodes and check connection cables between sensor and electronic Datalogger full Memory of datalogger is Read the datalogger using the Flow Assistant software full Except of errors mentioned above the flowmeter reports also errors caused by incorrect communication with the computer These errors are described in the chapter Remote control 36 Operation manual MEATEST Battery operated magnetic flowmeter M930 8 Maintenance The inductive flowmeter is an electronic device with circuits protected with built in electronic fuses These protect the instrument against damage caused by the user 8 1 Advice for correct operation The following principles should be consider during installation e Protect the flowmeter and the internal lining of the sensor pipe from mechanical damage especially during installation or cleaning e Protect the flowmeter from direct sunlight Fit a sunshade if necessary e Do not expose the flowmeter to intense vibration 8 2 Periodical maintenance The flowmeter does not require any special maintenance Dependent on the media being measured it is recommended that approx once a year remove the sensor from the pipe and clean the liner Method of cleaning consists of removing mechanical dirt and any non conductive coating like oil film from the liner A very dirty liner could cause inaccuracy of the measurement Check mechanical state of the liner 8 3 What to do in case of failure If an o
24. bvious failure occurs during the operation e g the display is not lit the flowmeter must be switched off immediately e Remove the cover from the transmitter e Disconnect the power supply battery see chapter Battery connection e Connect power supply again e Replace the cover If an obvious fault is evident e g a measurement range or an operating mode is not functional the user cannot correct the fault Hidden faults can cause different symptoms Usually they cause instability of some parameters Hidden defects can be caused by unacceptable distortion degraded insulation etc In this case contact Distributor The flowmeter can have hidden defects when correct operation rules are not applied In this case the fault can be caused by wrong installation Most frequent cases of false hidden defects e mains voltage out of tolerance limits or unstable e poor grounding of the measuring circuit bad connection of the ground terminal large electrostatic or electromagnetic field Operation manual 37 Battery operated magnetic flowmeter M930 MEATEST 9 Application information 9 1 Weight and dimensions Flowmeter weight and dimensions depend mostly on the version remote or compact and diameter of the pipe 9 1 1 Electronic unit compact version The pictures below show dimensions of the electronic unit for the compact version Dimensions are in millimetres 148 230 124 181 Weight 3 8 kg 9 1
25. cables are similarly suppressed Operation manual 47 Battery operated magnetic flowmeter M930 MEATEST Appendix B M930 Menu structure M930 has three access levels for parameter s setting Basic user access Calibration calibration laboratory Service service organization Every parameter has minimal access level which allows you to change it Access to parameters is enabled after pushing the key ENTER from the Main menu and after entering the password Access level is defined by used password Setup menu has following folders FLOWMETER CALIBRATION GENERAL SERVICE FLOWMETER FLOW Unit User unit User constant Direction Low fl off Exc freq Time const Range VOLUME Unit User unit User Constant CLEAR VOLUME Auxiliary volume Total volume Pos Neg volume DATALOGGER Interval Filling Clear CALIBRATION Num of cal point CAL POINT 1 Flowrate Constant CAL POINT 2 Flowrate Constant CAL POINT 3 Flowrate Constant CAL POINT 4 Flowrate Constant Orig cal settings GENERAL USB RS232 Mode Modbus parity Modbus address DISPLAY Language Contrast Message time DATE TIME Time set Date set Date format USER ACCESS Basic password Calibr password Clear on scree
26. d in the range Quax see the table 1 M930 flowrates This value is flowrate that is calibrated 5 4 2 2 2 Calibration constant Constant Value presents calibration constant in above defined calibration point Higher calibration constant means lower displayed value 5 4 2 3 Calibration point 2 CAL POINT 2 This item allows to change nominal and calibration value of Calibration point 2 For detail description see Calibration point 1 5 4 2 4 Calibration point 3 CAL POINT 3 This item allows to change nominal and calibration value of Calibration point 3 For detail description see Calibration point 1 5 4 2 5 Calibration point 4 CAL POINT 4 This item allows to change nominal and calibration value of Calibration point 4 For detail description see Calibration point 1 5 4 2 6 Original calibration settings Orig cal settings This item restores calibration settings on factory settings Number of calibrations points Calibration points 1 4 Range and Low flow cut off 5 4 3 General settings GENERAL This item serves for flowmeter general settings 5 4 3 1 Interface parameters USB RS232 This item allows to change USB virtual RS232 parameters 5 4 3 1 1 Bus mode Mode Following modes are available Normal Modbus ASCII Modbus RTU 5 4 3 1 2 Modbus parity Modbus parity Following parity setting is available Operation manual 19 Battery operated magnetic flowmeter M930 MEATEST None Even O
27. dd 5 4 3 1 3 Modbus address Modbus address Available range for modbus addresses is to 247 5 4 3 2 Display parameters DISPLAY This item allows to change display parameters 5 4 3 2 1 Language Language This item allows to set the language You can select one of following items Cestina English 5 4 3 2 2 Display contrast Contrast This item allows to set the display contrast in range 30 to 70 5 4 3 2 3 Message display time Message time This item allows to set the message display time You can select one of following items Short Normal Long 5 4 3 3 Real time setting DATE TIME This item allows to correct time of internal Real time clock and select required date format 5 4 3 3 1 Time setting Time set This item allows to set the actual time Range is 00 00 to 23 59 5 4 3 3 2 Date setting Date set This item allows to set the actual date Range is 01 01 2009 to 31 12 2099 5 4 3 3 3 Date format setting Date format This item allows to set required date format You can select one of following items D M Y D M Y D M Y Y M D Y M D M D Y M D Y 5 4 3 4 Password setting USER ACCESS This item allows to set user passwords 5 4 3 4 1 Basic access password Basic password This item allows to set five digits password for access level BASIC 5 4 3 4 2 Calibration access password Calibr password This item allows to set five digits password for
28. flowmeter e Connect the opposite end to the USB port in the PC e Use the application software FlowAssistant to enter new calibration data or to change settings of the flowmeter e Disconnect USB cable and replace the cover Computer symbol is displayed during active USB communication 12 31 22 86 2611 133 21 we Note USB port is galvanically isolated from other electronic circuits 14 Operation manual MEATEST Battery operated magnetic flowmeter M930 5 Operation 5 1 Main menu The flowmeter is in Main menu after the switching power on This entire menu can be operated with capacitive buttons without opening the housing The following information can be displayed in the Main Menu 5 1 1 Total Volume 12 31 22708 72011 E 635021 2 5 1 2 Current Flowrate 12 31 2270872011 153 21 wen turr flowrate 5 1 3 Positive and Negative Volume 696 24 w 14 53 r 5 1 4 Basic display after power on Time is displayed on the second line Total volume is displayed on the second line Flow in the forward direction is added to this volume Flow in the reverse direction is subtracted Measuring parameters units moving average etc are selectable in Setup menu Current Flowrate is displayed after pushing gt key Time is displayed on the first line Current flowrate is displayed on the second line Measuring parameters units moving average etc are selectable in Setup men
29. flowmeter returns 3 600000 lt cr gt Flowrate direction FFD lt CPD gt 0 1 Following directions can be set e 0 Positive 1 Negative M930 confirms direction with string Ok lt cr gt Example Command FFD 0 lt cr gt sets Positive direction If query FFD lt cr gt is sent flowmeter returns response in format 0 lt cr gt Low flow cutoff FLF lt DNPD gt Command sets flowrate limit for suppression low flowrates lt DNPD gt It represents flowrate expressed in actual unit All flowrates below this limit are displayed as 0 M930 confirms execution with string Ok lt cr gt In case of query M930 returns set low flow cut off Example Command FLF 0 2 lt cr gt sets low flow cut off 0 2 After query FLF lt cr gt flowmeter returns 0 200000 lt cr gt Excitation setting FEC lt CPD gt 0 1 2 3 Following frequencies can be set e 0 Is e 1 5s e 2 158 e 3 30s M930 confirms execution with string O0k lt cr gt Example Command FEC 3 lt cr gt sets excitation 30s In case of query FEC lt cr gt flowmeter returns 3 lt cr gt Time constant FTC lt DNPD gt Command sets time for moving average calculation lt DNPD gt It represents time expressed in seconds Any value in range between 4 second and 20 seconds can be set M930 confirms execution with string Ok lt cr gt In case of query M930 returns time constant
30. gt Resolution is designed by Setup menu 6 2 2 Flowmeter 6 2 2 1 Flowrate parameters Flowrate unit FFS lt CPD gt 0 1 2 3 4 Following units can be set e 0 Is 1 m3 h e 2 UG m e 3 IG m e 4 User M930 confirms execution with string 0k lt cr gt Example Command FFS 0 lt cr gt sets flowrate unit l s If query FFS lt cr gt is sent flowmeter returns response in format 0 lt cr gt Flowrate user unit FFU lt CPD gt Command sets text for flowrate user unit lt CPD gt It represents user units expressed as 5 ASCII characters M930 confirms execution with string Ok lt cr gt In case of query M930 returns set user unit Example Command FFU l m lt cr gt sets flowrate user unit I m After query FFU lt cr gt flowmeter returns string l m lt cr gt Conversion constant for flowrate user unit FFC lt DNPD gt Command sets conversion constant for flowrate user unit with respect to l s lt DNPD gt Operation manual 25 Battery operated magnetic flowmeter M930 MEATEST It represents a constant which is calculated as a ratio between flowrate in user unit and flowrate in basic unit l s For example constant for m3 h is 3 6 M930 confirms execution with string Ok lt cr gt In case of query M930 returns set constant Example Command FFC 3 6 lt cr gt sets constant 3 6 After query FFC lt cr gt
31. his item measures battery voltage Optimal range is 2 8 to 3 7 V 5 4 3 6 7 CPU voltage Volt CPU This item measures CPU voltage Optimal range is 2 8 to 3 2 V 5 4 3 6 8 Internal voltage 5 V Volt high This item measures internal power supply 5 V Optimal range is 4 7 to 5 1 V 5 4 3 6 9 Internal voltage 3 6 V Volt symm This item measures internal power supply 3 6 V Optimal range is 3 5 to 3 7 V 5 4 3 6 10 Internal voltage 3 6 V Volt symm This item measures internal power supply 3 6 V Optimal range is 3 5 to 3 7 V 5 4 3 6 11 Reference voltage 2 5 V Volt ref This item measures internal reference Optimal range is 2 4 to 2 6 V 5 4 3 6 12 Coil excitation current Coil excit This item measures coil excitation current Optimal range is 22 to 24 mA Operation manual 21 Battery operated magnetic flowmeter M930 MEATEST 5 5 Nominal values standard factory setting FLOWMETER FLOW UNIT USER UNIT USER CONSTANT DIRECTION EXCIT TIME L F CUTOFF TIME CONSTANT RANGE VOLUME UNIT USER UNIT USER CONSTANT DATALOGGER INTERVAL CALIBRATION NUMBER OF CAL P CAL POINT 1 FLOWRATE CONSTANT CAL POINT 2 FLOWRATE CONSTANT CAL POINT 3 Not used CAL POINT 4 Not used GENERAL INTERFACE USB RS232 MODE MODBUS PARITY MODBUS ADDRESS DISPLAY LANGUAGE m3 h l h 3600 Positive 1 15 Hz flowrate Qjq 2 10s flowrate Qn nomi
32. ignal This method of measurement offers the following advantages e No pressure loss through pipe constriction or protruding parts e Since the magnetic field passes through the entire flow area the signal represents a mean value over the pipe cross section therefore only relatively short straight inlet pipes x DN from the electrode axis are required upstream of the primary head e Only the tube liner and the electrodes are in contact with the fluid e Already the original signal produced is an electrical voltage which is an exact linear function of the mean flow velocity e Measurement is independent of the flow profile and other properties of the fluid The magnetic field of the primary head is generated by a square wave current fed from the signal converter to the field coils This field current alternates between positive and negative values Alternate positive and negative flowrate proportional signal voltages are generated at the same frequency by the effect of the magnetic field which is proportional to the current The positive and negative voltages at the primary head electrodes are subtracted from one another in the signal converter Subtraction always takes place when the field current has reached its stationary value so that constant interference voltages or external or fault voltages changing slowly in relation to the measuring cycle are suppressed Power line interference voltages coupled in the primary head or in the connecting
33. inal diameter DN Example If query RDN lt cr gt is sent flowmeter returns response in format 50 lt cr gt for nominal diameter 50mm 34 Operation manual MEATEST Battery operated magnetic flowmeter M930 Battery s capacity reading percentage BAT Response contains actual battery s capacity Example If query BAT lt cr gt is sent flowmeter returns response in format 50 lt cr gt for capacity 50 6 2 4 5 Error messages Errors reading IER Response contains list of all errors from the power on or from the last reading query IER The Mask allows selecting which errors will be reported via the State Output Errors are expressed as sum of bit values of errors Bit value of possible errors is in the table Bit Bit value Error DO 1 Battery voltage overload D1 2 Internal voltage overload D2 4 Excitation open D3 8 Empty pipe D4 16 Datalogger full D5 32 Temperature over D6 64 Flash erasing over Example Response 0 lt cr gt indicates that there was no error Response 16 lt cr gt indicatesdatalogger full Value 12 lt cr gt 8 4 indicates that excitation circuit is open and there is no liquid in the pipe empty pipe Flowmeter s state reading RES Response contains flowmeter s state Response is e 0 flowmeter measures without correct e flowmeter indicates error in the last 3 seconds before the query was sent Example
34. it This constant is calculated as the ratio between volume in 1 and volume in user unit CALIBRATION access is required 5 4 1 2 4 Resetting Volume counters CLEAR VOLUME This item allows to clear volume counters Auxiliary volume clears auxiliary volume counter Total volume clears total volume counter CALIBRATION access is required Pos Neg volume clears positive and negative volume counter CALIBRATION access is required 5 4 1 3 Datalogger parameters DATALOGGER This item allows to set the datalogger 5 4 1 3 1 Datalogger sampling interval Interval This item allows to set sample interval for internal datalogger You can select one of following intervals Off 5 10 15 30 45 60 120 180 and 240 Values are expressed in minutes Flowrate value written into the datalogger is calculated as average value in the selected interval 5 4 1 3 2 Datalogger filling Filling This item displays datalogger filling in Datalogger capacity is over 100 000 samples 5 4 1 3 3 Datalogger clear Clear This item allows to clear the datalogger memory 5 4 2 Calibration menu CALIBRATION This item serves for the flowmeter calibration Setting any new value in calibration menu changes calibration data Calibration should be performed in an appropriate equipped laboratory We recommended using software FlowAssistant for easy Calibration It contains Calibration wizard and can prevent flowmeter from inco
35. menu without password One of following states can be set e 0 Disabled e Enabled M930 confirms completion with string Ok lt cr gt Example Command FME 1 lt cr gt enables direct reset from the Main menu If query FME lt cr gt is sent flowmeter returns response in format l lt cr gt Basic access password setting FPB lt DNPD gt Command changes the password valid for access level Basic lt DNPD gt Presents new password in range 0 to 99999 M930 confirms completion with string Ok lt cr gt Example Command FPB 520 lt cr gt sets basic password 520 If query FPB lt cr gt is sent flowmeter returns response in format 520 lt cr gt Calibration access password setting FPC lt DNPD gt Command changes the password valid for access level Calibration lt DNPD gt Presents new password in range 0 to 99999 M930 confirms completion with string Ok lt cr gt Example Command FPC 520 lt cr gt sets calibration password 520 If query FPC lt cr gt is sent flowmeter returns response in format 520 lt cr gt 6 2 4 4 Service information Device identification IDN IDN Response contains flowmeter s model type number Example If query IDN lt cr gt is sent flowmeter returns response in format M930 V0000 360001 1 00 lt cr gt Nominal diameter reading RDN Response contains actual flowmeter s Nom
36. n 48 Operation manual MEATEST Battery operated magnetic flowmeter M930 INFO Serial number Version SW Version HW Diameter Int temp Volt battery Volt CPU Volt high Volt symm Volt symm Vol ref Coil excit SERVICE Manufacturer MEATEST spol s r o tel 420 543 250 886 Zelezna 509 3 619 00 Brno fax 420 543 250 890 Czech Republic meatest meatest cz www meatest com Operation manual 49
37. nal flowrate m3 Off 5 10 of required Qn is assigned according to the calibration 40 70 of required Qn is assigned according to the calibration Normal Even 10 English 22 Operation manual MEATEST Battery operated magnetic flowmeter M930 CONTRAST 50 MESSAGE TIME Normal DATE TIME ACTUAL TIME actual time GMT 1 ACTUAL DATE actual date GMT 1 DATE FORMAT D M Y USER ACCESS BASIC PASSWORD 00000 CAL PASSWORD 10000 CLEAR ON SCREEN Enabled INFO DIAMETER according to the sensor DN 6 System control Flowmeter can be connected to the computer via USB bus USB connector is located behind the front panel RS485 terminals are behind the back panel In fact the connected computer creates a virtual serial port RS232 and utilities communicate with the layer RS232 Communication parameters must be set in menu item USB RS232 USB interface can work in three modes a Normal communication protocol ADAM compatible with flowmeter M910 and M920 b Modbus RTU communication protocol Modbus binary communication c Modbus ASCII communication protocol Modbus ASCII communication To transfer data in Normal mode 8N1 data format is used i e each data word includes 8 bits no parity and one stop bit The communication speed can be set using the system menu Available values 1200 2400 4800 9600 and 19200 Bd Flowmeter in Modb
38. nected with two 2 wire unshielded and 3 wire shielded cables Standard length of cables is 6 meter It is recommended to mount the transmitter not too far from the flanged sensor Use cables as short as possible Five terminal connector is located in separated box The same box is used for the converter and also for the sensor Colours of wires are following 3 wire shielded cable shielding is connected to the green wire Blue Brown Electrode 1 EL1 Green Ground Red White Electrode 2 EL2 Battery operated magnetic flowmeter M930 MEATEST 2 wire cable Brown Excitation 1 EXCITATION White Excitation 2 EXCITATION Following procedure should be observed to connect sensor cable to the transmitter or sensor a e Switch off power supply e Dismount top cover of connection box Four screws must be removed e Connect 5 wires to the connector e As the basic protection of connection box is IP65 it is important in case you need better protection to fill the box with connected wires with reenterable insulating and sealing compound One piece of compound is standard part of delivery Using this technology will be protection of transmitter IP67 and protection of sensor IP68 e Mount the cover back e Switch on power supply 3 5 Sensor grounding To ensure the correct operation of the flowmeter an earthing connection between the sensor and pipeline must be made The sensor is equipped with
39. ng a request for the parameter specified by the command This command permits a value to be set as well as requested lt cr gt carriage return ASCII code 13 This code executes the command or query 6 2 Command list 6 2 1 Main menu Flowrate reading RFL Response contains actual Flowrate value in selected units Example If query RFL lt cr gt is sent flowmeter returns response in format 100 000 lt cr gt Resolution is designed by Setup menu Volume reading RVO Response contains actual Volume counter value in selected units Example If query RVO lt cr gt is sent flowmeter returns response in format 100 000 lt cr gt Resolution is designed by Setup menu Positive volume reading RVP Response contains actual Positive volume counter value Example If query RVP lt cr gt is sent flowmeter returns response in format 100 000 lt cr gt Resolution is designed by Setup menu Negative volume reading RVN 24 Operation manual MEATEST Battery operated magnetic flowmeter M930 Response contains actual Negative volume counter value Example If query RVN lt cr gt is sent flowmeter returns response in format 100 000 lt cr gt Resolution is designed by Setup menu Auxiliary volume reading RVA Response contains actual Auxiliary volume counter value Example If query RVA lt cr gt is sent flowmeter returns response in format 100 000 lt cr
40. rmat DRT Response contains all values stored in internal datalogger Example If query DRT lt cr gt is sent flowmeter returns response in format 14 28 13 10 2003 5 82 1 8 14 33 13 10 2003 4 76 l s 14 38 13 10 2003 ATZ LPs 14 43 13 10 2003 4 72 l s 14 48 13 10 2003 4 70 l s No Record Datalogger reading hex format DRD Response contains all values stored in internal datalogger Example If query DRD lt cr gt is sent flowmeter returns response in intel hex format Datalogger clear DCLR Operation manual 29 Battery operated magnetic flowmeter M930 MEATEST Command clears all data stored in internal datalogger M930 confirms execution with string Ok lt cr gt Example Command DCLR lt cr gt clears all data in datalogger 30 Operation manual MEATEST Battery operated magnetic flowmeter M930 6 2 3 Calibration Number of calibration points CPN lt CPD gt 2 3 4 M930 confirms completion with string O0k lt cr gt Example Command CPN 2 lt cr gt sets mode 2 calibration points If query CPN lt cr gt is sent flowmeter returns response in format 2 lt cr gt Nominal value of calibration point 1 CX1 lt DNPD gt Command sets constant CX1 which represents the nominal value of calibration point 1 lt DNPD gt It represents nominal value in selected units M930 confirms completion with string O0k lt cr gt In case of a query the M930 returns
41. rrect calibration You can change calibration values only if the correct calibration password has been entered Default factory setting is 10000 Note Flowmeter M930 enables calibration at 2 3 or 4 points Each calibration point contains 2 values Nominal value of calibration point is selected by user in range between Qyax for maximum flowrates see table 1 M930 flowrates It is expressed in flowrate units To this nominal value is attached a calibration constant Calibration constant doesn t have a unit In the calibration process you change this calibration constant to reach similarity between standard flowmeter and the calibrated flowmeter Higher calibration constant means lower displayed value Calibration constants must be different In the case of two equal calibration constants the measured values could be wrong 18 Operation manual MEATEST Battery operated magnetic flowmeter M930 5 4 2 1 Number of Calibration Points Num of cal point This item allows to enter number of calibration points in range between 2 and 4 Note Standard number of calibration points is 2 More calibration points are used for special applications when higher accuracy is expected negative flowrate low flowrates etc 5 4 2 2 Calibration point 1 CAL POINT 1 This item allows to change nominal and calibration value of Calibration point 1 5 4 2 2 1 Flowrate nominal value setting Flowrate Flowrate nominal value can be change
42. s can be changed in the flowmeter Setup Menu see chapter Flowmeter configuration Operation manual 13 Battery operated magnetic flowmeter M930 MEATEST Output active Empty pipe USB connected Service mode Battery state mmm lt 100 maj lt 80 E lt 40 E_J L lt 30 blinking last A A AG m A battery segment HEHUJ Curr flowrate 12 31 770872011 Description of the actual screen and the scroll bar If you don t use the display for 30 s display goes to sleep mode The flowmeter continues with measuring Waking up is done by activating any button for 1 s 3 USB connector USB for connection the flowmeter to the computer USB is electrically isolated from the flowmeter electronics 4 2 USB The connector is located on the front panel and is accessible after removing the electronic unit cover USB enables you to connect the flowmeter to a personal computer USB can be used for flowmeter s configuration and calibration It s not suitable for online communication during operation because the flowmeter must be open IP67 protection is lost Baud rate 9600 Bd Data bits 8 Stop bit 1 Parity none For connection of the flowmeter to the PC a standard USB A B cable is used To connect a PC to the flowmeter follow this procedure e Unscrew the front cover using the special wrench standard part of delivery e Plug the one end of the cable onto the USB connector in the
43. st extensive tests and for the eventual achievement of warranty claims from our suppliers and sub suppliers For the item or instrument returned after the expired warranty time repair or replacement on warranty can only be accepted if manufacturer has been informed in time that a warranty case has occurred Warranty period for all types of electromagnetic flowmeter is 24 months The flowmeter should only be used according to the instructions described in this operating manual 6 Operation manual MEATEST Battery operated magnetic flowmeter M930 2 Preparing for start up 2 1 Inspecting contents of the package Basic package includes the following items e Flanged sensor e Electronic Transmitter can be integral or remote e Operating manual e Calibration certificate e Special wrench for opening the housing covers e Software FlowAssistant e USB A B cable The flowmeter is delivered ready for use after connecting to the power supply Please check that it has been correctly installed according to chapter Installation Operation manual Z Battery operated magnetic flowmeter M930 MEATEST 3 Installation 3 1 Sensor location To avoid measuring errors due to gas air entrainment or to a partly filled pipe please observe the following Horizontal standard mounting The sensor tube must always remain full The best way to achieve this is to locate the sensor in a low section of pipe see the following picture It
44. the set value in the selected unit Example Command CX 110 5 lt cr gt sets value CX1 to 10 5 After query CX1 lt cr gt flowmeter returns string 510 500000 lt cr gt Nominal value of calibration points 2 3 and 4 CX2 CX3 CX4 For explanation see command CX1 Calibration constant for calibration point 1 CY1 lt DNPD gt Command sets constant CY 1 which represents the calibration constant for calibration point 1 lt DNPD gt It represents the calibration constant M930 confirms completion with string Ok lt cr gt In case of a query the M930 returns the set value Example Command CY 110 5 lt cr gt sets value CY1 to 10 5 After query CY1 lt cr gt flowmeter returns string 10 500000 lt cr gt Calibration constants for calibration points 2 3 and 4 CY2 CY3 CY4 For explanation see command CY 1 6 2 4 General 6 2 4 1 Display parameters Contrast setting FDC lt CPD gt 0 1 2 3 4 Operation manual 31 Battery operated magnetic flowmeter M930 MEATEST Display contrast setting e 0 30 e 1 40 e 2 50 e 3 60 e 4 70 M930 confirms completion with string Ok lt cr gt Example Command FDC 2 lt cr gt sets 50 If query FDC lt cr gt is sent flowmeter returns response in format 2 lt cr gt Message time setting FDM lt CPD gt 0 1 2 You can select one of following items e 0 Short e Normal e 2 Long M930 confirms comple
45. tion with string Ok lt cr gt Example Command FDM 2 lt cr gt sets the message time to Long If query FDM lt cr gt is sent flowmeter returns response in format 2 lt cr gt Language setting FLG lt CPD gt 0 1 You can select one of following items e 0 English e Cestina M930 confirms completion with string Ok lt cr gt Example Command FLG 0 lt cr gt selects language English If query FLG lt cr gt is sent flowmeter returns response in format 0 lt cr gt 6 2 4 2 Real time clock setting Time setting FTM lt CPD gt HH MM Command sets new time for internal Real Time Clock lt CPD gt It represents new time in format HH MM SS Any value in range between 00 00 and 23 59 can be set M930 confirms execution with string Ok lt cr gt In case of query M930 returns real time Example Command FTM 14 25 lt cr gt sets new time 2 25 pm After query FTM lt cr gt flowmeter returns 14 25 lt cr gt 32 Operation manual MEATEST Battery operated magnetic flowmeter M930 Date setting FDT lt CPD gt DD MM YYYY Command sets new date for internal Real Time Clock lt CPD gt It represents new date in format DD MM YYYY Any value in range between 01 01 2000 and 31 12 2099 can be set M930 confirms execution with string Ok lt cr gt In case of query M930 returns real date Example Command FDT 05 03 2002 lt cr gt
46. u Positive Negative Volume is displayed after pushing 5 key Total volumetric flow in a forward and a reverse direction Auxiliary Volume is displayed after pushing key Second Total Volume counter Value is cleared after pushing 0 key top button long activation This operation must be enabled in Setup menu It is usually used for measuring volumetric flow during a set period such as day month etc Datalogger is displayed after pushing is displayed after pushing key 5 1 5 Datalogger periodical flow rate record 21 86 2611 16 45 20 67 mA Tosser 1256 samples Individual samples from datalogger memory can be read after pushing key In this submenu samples are read sequentially Next sample Flowrate with Date and Time is displayed after pushing key Sequential reading submenu is left after pushing key or after displaying all values Current Flowrate Total Volume is displayed after pushing key Datalogger capacity is 100 000 Operation manual 15 Battery operated magnetic flowmeter M930 MEATEST Main menu windows are switched by pushing key 5 2 Internal backup system Once an hour some data is saved to internal FLASH Date and time Total volume Positive volume and Negative volume If you want change the battery see 3 3 Battery replacing Menu settings datalogger etc are saved immediately
47. us mode has its own modbus address Range of this address is from 1 to 247 6 1 Command syntax Communication between flowmeter and computer consists of a flow of periodically alternating commands type command response or query response Command is always a text followed by parameter and ended by control sign lt cr gt Response is always ended with control sign lt cr gt There are three types of responses 1 Parameters value response to a query 2 Ok response to a command 3 ErrX in case that command has wrong format Where X is error code from the table below Error code Meaning Unknown command Parameter out of range Value cannot be set Value cannot be read Unknown parameter Parameter too low SD MY BY BW RY eR Parameter to high Operation manual 23 Battery operated magnetic flowmeter M930 MEATEST 8 Number as parameter is required Access denied use appropriate password Modbus protocol is explained in independent chapter Syntax description lt DNPD gt Decimal Numeric Program Data this format is used to express decimal number with or without the exponent lt CPD gt Character Program Data Usually it represents a group of alternative character parameters e g 0111213 A flag indicating a request for the value of the parameter specified by the command No other parameter than the question mark can be used A flag indicati
48. ype plate on the flanged sensor Flow direction Type gt DN nominal diameter 10 800 mm PN nominal pressure 6 25 x100kPa M930 V0001 MEATEST LMEATEST pn pn 100 16 S n 310541 number Zelezna 509 3 Year 2009 619 00 Brno Q 0 80 m h Production Year www meatest com C IP 67 Flowrate range Protection Manufacturer Type plate on the converter Type M930 V0001 MEATEST MEATEST sn 310541 Zelezna 509 3 Year 2009 number Production Year IP 65 Protection Manufacturer Operation manual 43 Battery operated magnetic flowmeter M930 MEATEST 11 Technical data Nominal size DN10 to DN250 Nominal pressure PN10 to PN40 depending on nominal size Flow range 0 1 to 12 m s 0 01 to 600 I s 0 03 to 2100 m3 h Accuracy e 0 5 0 5 to 12 m s of reading value e 1 0 1 to 0 5 m s Maximum media temperature 0 to 80 C 32 to 176 F for rubber liner 0 to 150 C 32 to 302 F for PTFE liner in remote version Minimum electrical conductivity 25 uS cm Ambient temperature 20 to 60 C 4 to 140 F Excitation coils temperature 20 to 150 C 4 to 302 F Power supply Internal battery Liner e hard rubber e soft rubber e PTFE Electrodes CrNi stainless steel 1 4571 e Hastelloy C276 e Tantalum Measuring tube Stainless steel 1 4201 dimensions according to DIN 17457

M910 manual - meatest.cz

Contents

Download Pdf Manuals

Related Search

Related Contents