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promesstec GmbH

I Niedersachsenstraße 4 I D-48465 Schüttorf I Tel.:+49 (0)5923/ 90 229 0 I Fax:+49 (0)5923/ 90 229 29

E-Mail: [email protected] I Internet: www.promesstec.com

4.8 Current output

D/A - converter of the MDW / MDH 500 evaluation unit is 16-bit with data recovery
per second. The converter is isolated from the meter by optocouplers. If the current
output is passive, it is necessary to feed the current output from an external power
supply. External power supply Ue can be 12 - 24 V. The loop resistance must not
be higher than R = Ue / 0,02 (

Ω;V).

As standard, it is set in such a way that with the maximum flow Qmax the loop cur-
rent is 20mA and with the zero or negative flow, the loop current is 4mA. The borders
can be set by buttons or user software for all flow directions. In case of loss of power
for the meter, it is indicated by 0mA current loop output.
In case of active current loop, an internal 16V galvanically isolated power supply is
used in MDW/MDH 500 meter.

Current loop wiring connection example:

Passive current loop

Terminal board wiring connection:

Active current loop

Terminal board wiring connection:

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Содержание MDH 500

Страница 1: ...ec GmbH I Niedersachsenstraße 4 I D 48465 Schüttorf I Tel 49 0 5923 90 229 0 I Fax 49 0 5923 90 229 29 E Mail office promesstec com I Internet www promesstec com User manual Flow meter MDW MDH 500 version 2 1 1 ...

Страница 2: ...ards 6 4 Starting operation 7 4 1 feature 7 4 2 Installation in pipeline 7 4 3 Outdoor conditions 7 4 4 Disturbance sources 7 4 4 1 Vibrations 8 4 4 2 Proper location 8 4 4 3 Installation examples 9 4 4 4 Recommendation 10 4 4 5 Compact construction of the meter 10 4 4 6 Installation in pipeline 11 4 5 Wiring 19 4 5 1 Meter wiring 19 4 5 2 Assignment M12 plug 21 4 6 Power supply cover sheet 22 4 7...

Страница 3: ...ifications 29 6 1 Factory settings 31 6 2 Adjusting and control of the meter MDW MDH 500 32 6 3 Instruction manual MDW MDH 500 33 7 Application information 65 7 1 Disassembly and assembly of PCB 66 7 2 Basic sensor sizes 67 7 3 Reduction in DN pipe 71 7 4 Faults and their symptoms during measurement 71 8 Dismounting Return Cleaning Disposal 72 8 1 Dismounting 72 8 2 Return 72 8 3 Cleaning 72 8 4 D...

Страница 4: ...with a minimum conductivity of 20 µS сm at a lower conductivity upon agreement with the manu facturer Meters are designed for flow measurement where the velocity of liquid is in the range of 0 01 12 m s The best measurement accuracy can be obtained in the range of 1 10 m s 1 2 Drawings shortcut Warning A non observance can cause injuries to persons and or the demoli tion of the device There can be...

Страница 5: ...t vapour dust and corrosive gases If possible store the device in its original package or an equivalent one 3 Safety instructions More important safety instructions can be found in the individual chapters 3 1 Intended use of the product The sensor has been designed and built solely for the intended use described here and may only be used accordingly The technical specifications contained in these ...

Страница 6: ...ion plants compressors etc in addition to all standard regulations the appropriate existing codes or regulations must also be followed If you do not observe the appropriate reg ulation serious injuries and or damage can occur A protection from electrostatic discharge ESD is required The proper use of grounded work surfaces and personal wrist straps is required when working with exposed circuitry P...

Страница 7: ...ese are the sources disturbing the steady flow of a liquid Pumps and bends or elbows located closely in series in various planes These elements should be at a distance of at least 20 d d stands for inside diameter of the sensor in mm before the flow sensor Sudden variations in the pipe section unless constructed as a cone with angle α 16 where α is the angle between the bevelled walls of the pipe ...

Страница 8: ...d behind the flow sen sor For the same reason the flow sensor should not be installed at the suction side of the pump To prevent the bubbles from accumulating in the flow sensor while the flow is slow it is useful for the pipeline either to be slightly ascending or the sensor is put into the vertical part of the pipeline If the meter is populated with measuring electrodes only 2 or 3 electrodes lo...

Страница 9: ...ement are shown in the following figures Recommended installation locations Downtake pipe Horizontally laid pipeline Long pipeline Free inlet or outlet Pumps Bubbles are accumulated in the pipeline erroneous measurement Install an air bleed valve after the sensor Place the sensor in a slightly as cending pipeline Pipeline is empty er roneous measure ment Correct loca tion Install controls and shut...

Страница 10: ...ons of the pipe or install the flow conditioner When mixtures are blended it is necessary to install the flow meter either before the blending spot or at a sufficient distance behind it 30xd min otherwise it may result in unstable readouts The grounding rings are necessary when plastic or metal pipes with the internal non conductive layer are used 4 4 5 Compact construction of the meter For the co...

Страница 11: ...he earthing reference electrode facing down with the sensor terminal box eventually with the evaluation unit facing upwards Then the earthing reference electrode is in the bottom position and the empty tube sensing electrode is in the top position of the flow sensor Every time when the empty tube testing electrode is not covered with a liquid for 5sec at least the flow meter will display the Empty...

Страница 12: ...aintained in this way Once the electrode is covered with the liquid again the error message disappears and the flow meter starts taking measurement again Measurement error caused by incorrect mounting installation 1 correct installation flow sensor should be install in arbitrary position in vertical piping EMPTY TEST ON EMPTY TEST OFF 2 incorrect installation placing the unit diagonally Empty test...

Страница 13: ...90 229 0 I Fax 49 0 5923 90 229 29 E Mail office promesstec com I Internet www promesstec com in the version without the earthed reference electrode and or empty piping test 2 electrodes in the version with earthed electrode and or empty piping test electrode 3 4 of the electrode ...

Страница 14: ...ring tube might crack when being tight ened unevenly The difference in LMAX and LMIN distances of the both sealing faces on the flanges before the flow sensor is installed must not be longer than 0 5 mm In the same way the mating positions of holes for connecting bolts in counter flanges should be ensured as well as ample room behind the flanges for the con necting bolts and nuts in order to ensur...

Страница 15: ...file of the detector between the flanges and the pipeline otherwise the flow measure ment error may be increased Tightening torques It is absolutely necessary to tighten the bolts and nuts equally by alternating sides and in the order shown in figure applying the maximum torque according to the table Diameter nominal PN 10 PN 16 DN Screws Tightening torque Nm Screws Tightening torque Nm Rubber PTF...

Страница 16: ...0 57 115 75 136 200 12 x M24 68 100 12 x M27 85 145 250 12 x M27 88 120 12 x M30 105 220 300 16 x M27 95 125 16 x M30 115 250 350 16 x M30 115 200 16 x M33 140 400 16 x M33 135 255 16 x M36 165 In case of using a corundum or thermoplastic tube the same torques apply as in case of using the PTFE tube according to the given pressure series Threaded connection EN 10226 1 Diameter nominal DN Process c...

Страница 17: ...ew washer and nut made of stainless steel M5 These must be connected to the earth cable If it is not ensured that the counter flanges are in direct contact with the measured liquid and are conductive it is recommended to use earthing rings Grounding rings only if ordered The earthing rings are used when plastic pipes or metal pipes with internal plastic coating are used The conductive stainless st...

Страница 18: ...ase of a great ma jority of liquids it is not necessary to clean the flow meter for the entire operation period of the flow sensor self cleaning by flow of the liquid is sufficient recom mended velocity is over 2 m sec PTFE PFA EFTE lining The installation is carried out at the lowest point of the pipes to avoid negative pres sure The PTFE coating must not be damaged under any circumstances The pr...

Страница 19: ...g cable must not be shortened or ex tended The signal cable of the separate sensor must not be laid next to voltage distributors motor electromagnets frequency converters or similar sources with electromagnetic fields To ensure the tightness of the cover of the evaluation unit the seal must be kept intact and clean Evaluation unit Standard power supply 230V 50 60Hz Other power supply possible DC 2...

Страница 20: ...erminals No 3 4 impulse output OUT IMP Terminals No 5 6 RS485 communication Terminals No 7 8 output 2 Terminals No 9 10 reset Total V register resettable counter by external button Terminals No 11 12 output voltage 16 V 100 mA power supply for changing to active current and impulse outputs Terminals L N PE mains voltage 230 VAC standard available also in 24 VAC VDC version Install as an independen...

Страница 21: ...4 I D 48465 Schüttorf I Tel 49 0 5923 90 229 0 I Fax 49 0 5923 90 229 29 E Mail office promesstec com I Internet www promesstec com 4 5 2 Assignment M12 plug UB EXT null EXT null UB 4 20mA 4 20mA OUT 1 C OUT 1 E OUT 2 C OUT 2 E OUT 16V OUT 0V ...

Страница 22: ...nnect the sensor cable using the connector Attach the cable to the wall or to the structure so that it does not dangle from the connector Make a drip loop downwards so that water cannot trickle onto the con nector Fix the conductors for power and the outputs in a similar way After installa tion of all cables turn the electronics to the required position and fix the unit to the bracket by tightenin...

Страница 23: ...ly high 16V at the recommended current consumption of approx 2mA for the transmis sion of optocouplers The output in off state is in high impedance state so it is neces sary to use a pull down or pull up resistor to define the stational level Configuration 1 The impulse output is used for remote transmission of volumetric pulses The con version constant is arbitrarily variable via keys or user sof...

Страница 24: ...229 29 E Mail office promesstec com I Internet www promesstec com Wiring connection examples passive impulse output Terminal board wiring connection Examples of connection active impulse output Terminal board wiring connection Due to CTR 100 and If 2 5mA it is suitable to select collector current up to 2 5mA ...

Страница 25: ...power supply Ue can be 12 24 V The loop resistance must not be higher than R Ue 0 02 Ω V As standard it is set in such a way that with the maximum flow Qmax the loop cur rent is 20mA and with the zero or negative flow the loop current is 4mA The borders can be set by buttons or user software for all flow directions In case of loss of power for the meter it is indicated by 0mA current loop output I...

Страница 26: ...ion degree The meters meet all the requirements for IP 65 protection degree In order to ensure IP 65 protection after installation in the plant or after a service intervention the fol lowing must be met The O rings inserted in sealing grooves must be clean and intact If necessary the O rings should be dried cleaned or replaced with new ones Screw caps must be tightened properly Cables used for con...

Страница 27: ...it is replaced as follows 1 Switch off power 2 Unscrew the rear cover of the meter housing 3 Remove the protective cover and replace the instrument fuse use sole lyT250mA 250V tube fuses 4 Proceed in reverse order to recover the function of the meter 4 13 Wiring check After completion of wiring it is necessary to check Connecting cables for damage If the cables used are suitable for given cable en...

Страница 28: ...us of the measuring device is continuously shown on the display In case of a malfunction or failure the operator is informed by a flashing display The status displays of the meter are divided into 4 main groups 1 OK everything is all right 2 Warning the meter takes measurement but some of the parameters are out of range 3 Error critical error the meter does not take measurement 4 Empty tube if the...

Страница 29: ...ction sandwich flanged DIN EN1092 threaded EN10226 1 food processing fittings DIN 11851 clamp Measuring range Qmin Qmax 0 2 12 m s 1 60 0 12 12 m s 1 100 0 06 12 m s 1 200 Flow meter accuracy up to 0 5 for 0 1 10 m s Repeatability up to 0 2 for 0 1 10 m s Additional electrodes reference earthing and detection for empty pipeline DN 15 DN 400 Empty pipeline detection DN 15 DN 400 Min conductivity of...

Страница 30: ...le max 13 mm Ambient temp 5 55 C Ambient humidity max 90 Head size 144 x 151 x 125 mm H x W x D head 104 mm Weight 1340 g evaluation unit in detached version Material Al cast powder coating design PANEL SS304 Max ambient temp 55 C Flow sensor protection IP65 IP67 IP68 Electronics protec design HEAD IP67 design FRONT and PANEL IP54 Error limits at reference conditions range 1 1000 Diameter nominal ...

Страница 31: ...always set to 0000 and this value will be reset in case of restoring to factory default settings Impulse constants and current loop factory settings Diameter nominal Impulse output 4 20mA in Qmin Qmax 1 100 range DN Vout imp l Vout pulse width ms Q l h for 4mA Q l h for 20mA 6 on request 8 on request 10 10 4 0 3 400 15 10 4 0 7 600 20 10 4 0 14 200 25 10 4 0 21 000 32 1 4 0 34 000 40 1 4 0 54 000 ...

Страница 32: ...2 4 1 44 0 72 144 DN 80 3 6 2 2 1 1 220 DN 100 5 6 3 4 1 7 340 DN 125 8 9 5 34 2 67 534 DN 150 13 7 6 3 8 760 DN 200 23 13 5 6 75 1350 DN 250 35 21 1 2115 DN 300 51 30 3050 DN 350 70 41 4150 DN 400 90 54 5426 6 2 Adjusting and control of the meter MDW MDH 500 1 User modification Measuring mechanism enables user to turn the display according to meter installa tion To change the display position it ...

Страница 33: ...fficient tightening of screws 7 Screw on the front cover with the viewing window 6 3 Instruction manual MDW MDH 500 The meter is provided with two external buttons on the side of the electronics hous ing and with three internal buttons on the bottom of the measuring electronics PCB which is accessible after unscrewing the front glazed cover Functions of external buttons short press movement in cur...

Страница 34: ... modification and of values without writing 3s simultaneously total restart of the meter 8s and E short press confirmation Enter or modification of a value setting Basic display menu contains the following items Date and Time Current flow Q Flow bar graph Volume in positive direction against the arrow on the meter s name plate V Volume in negative direction against the arrow on the meter s name pl...

Страница 35: ...r the front glass pane You can also wait for TimeOut to return the flow meter to its basic menu Password setting MDW MDH 500 have two password levels a user password and a production password The USER PASSWORD allows you to change user parameters that have no effect on the calibration of the meter It is a customized password the default value for the password being 0000 The password is only requir...

Страница 36: ...lume ΣV User volume rV Status The order may have different settings of the meter Customers can change the data to be displayed on the first two lines or change the order to suit their re quirements e g In case that the meter s status is found in a different than normal and correct OK status measurement failure indication alternates with the normal display indica tion As a consequence it is not nec...

Страница 37: ...ATION 7 BASIC INDOICATIONS ON DISPLAY 8 DISPLAY DIMMING 9 DISPLAY BACKLIGHT 10 SERIAL NUMBER 11 CALIBRATION CONSTANTS 12 EMPTY TUBE TEST 13 FIRMWARE VERSION 14 DEAD BAND MEASUREMENT START SUPPRESSION 15 ZERO CALIBRATION 16 FLOW SIMULATION 17 LANGUAGE 18 COUNTER RESETTING 19 NOMINAL DIAMETER DN 20 FLOW DIRECTION 21 FLOW UNITS DISPLAYED Q 22 Q DISPLAYED IN PER CENTS BAR GRAPH 23 VOLUME UNITS DISPLAY...

Страница 38: ...presentation of menu items can be modified by user according to the customer s needs Within framework of setting it is necessary to unscrew the front cover with glass window to get access to internal buttons After initial entry to Parameters menu long press of and an attempt to edit an item by E button the operator is asked for en tering an authorization access code by default 0000 This is entered...

Страница 39: ...lowed by selecting YES NO and confirming by the E button By doing this the modification is saved in the internal memory of the meter 1 DATE AND TIME This menu item is in DD MM RRRR HH MM formats Use the and buttons to set the menu item on the display and press the E to edit Implement settings in a standard way using the setting buttons and confirm by pressing the E button It is necessary again to ...

Страница 40: ...tact OUT2 can be configured as impulse output flow switch or status contact 1 OUT1 Setting Impulse output When setting the parameters for impulse output it is possible to change the logic polarity of the electrical signal on off state to set the impulse output to which direction the volume meter should respond flow rate runs in positive direction in opposite direction and in both directions and yo...

Страница 41: ...le to change the logics polarity of the electrical signal positive negative and then set to which volume the output will respond flow in positive direction in opposite direction and in both directions as well as your own switching point value The status contact makes it possible to set the amount of hysteresis between Qon and Qoff states Qlimit the number of decimal places is given by DN of the sp...

Страница 42: ...se constant including its indication imp L or L imp Note Period ms impulse width ms interpulse distance ms where gap Width The pulse width is selected in steps by scrolling through predefined values with the or buttons Operation of the flow switch In the Flow Switch status output parameter setting it is possible to change the logic polarity of the electrical signal on state off state to set the ou...

Страница 43: ...ven by DN of the specified meter and can not be changed Counter reading Error output Output 2 opposite to output 1 can additionally be set as error status output of the counter If no error status occurs in the counter the status output is switched on POS contact transmitter NEG contact breaker Q in flow direction ΣQ in both flow directions Q in reverse flow direction 999 9 m3 h 99 99 m3 h 9 999 m3...

Страница 44: ...of Q the current loop output is then similarly dependent on the flow in the negative direction only If Q is set the value of the output current loop will not be dependent on the flow direction but only on its absolute value i e without dependency on the direction the medium flowing through the meter Setting takes place in a similar manner by changing the flow quantity value without a sign in m3 h ...

Страница 45: ...ected according to custom practice If you wish to change the type of communica tion press the E button Then press simultaneously and approx 0 5sec Select the desired communication type by or and confirm the selection by the E button Once the MBus MODBUS type of protocol is to be changed the recommended velocity for these communication types is completed automatically displayed If the communication...

Страница 46: ...trans mission speed is 9600 baud After changing the transmission rate the MDW MDH must be restarted to accept the change You can do this in two ways 1 Disconnect the MDW MDH from the power supply pull the fuse briefly 2 Via button combination press and hold the buttons and together for approx 8 sec Address The addresses 1 to 255 are reserved for the 255 secondary stations Request Answer Public fun...

Страница 47: ... 4 reserved bit 5 reserved bit 6 reserved bit 7 reserved request address 1 Byte function code 03h 1 Byte start address 2 Byte register number 2 Byte CRC32 2 Byte reply address 1 Byte function code 03h 1 Byte number of bytes 1 Byte 2xN register value N x 2 Bytes CRC32 2 Byte N Number of registers Error address 1 Byte Error Code 83h 1 Byte Exception code 1 Byte CRC32 2 Byte Example Read volume Regis...

Страница 48: ...on code 03h number of bytes 10h register number Hi xxh volume xxh xxh register number Lo xxh register number Hi xxh volume xxh xxh register number Lo xxh register number Hi xxh volume xxh xxh register number Lo xxh register number Hi xxh volume user xxh xxh Registeranzahl Lo xxh CRC32 Hi xxh CRC32 Lo xxh Resolution units of the registers are provided by the resolution of the LCD display Example LC...

Страница 49: ...l number lower register INT 40003 Total flow rate upper register UINT 2 40004 Total flow rate lower register UINT 40005 Total flow rate upper register UINT 40006 Total flow rate lower register UINT 40007 Total flow rate upper register UINT 40008 Total flow rate lower register UINT 40009 Total users Flow rate upper register UINT 40010 Total users Flow rate lower register UINT 40011 Actual flow rate...

Страница 50: ...on service The master station is the primary station that initiates all information transfers The satellite stations are secondary stations that only transmit information when re quested Initialization of slave SND_NKE EN 1434 3 compatibility redundant Command The secondary station responds ACK E5h if the reception is correct request 10h 40h Initialization Slave A address CS checksumme 16h stop Re...

Страница 51: ...e consisting of the following parameters Identification number volume Σ volume users volume volume flow rate software version error code volume Σ volume users volume volume The volume is transmitted 32Bit integer coded with the unit of the lowest position di git on the display The following possibilities of the VIF value exist Transferred unit VIF 1m 16h 100L 15h 10L 14h 1L 13h 0 1L 12h 0 01L 11h ...

Страница 52: ...f the VIF value exist Transferred unit VIF 1 m h 3Eh 100 L h 3Dh 10 L h 3Ch 1 L h 3Bh 0 1 L h 3Ah 0 01 L h 39h 0 001 L h 38h 1 L min 44h 0 01 L min 43h 0 001 L min 41h 1 L s 4Eh 0 1 L s 4Dh 0 01 L s 4Ch 0 001 L s 4Bh software version format 8 bit integer alarms 8 bit integer Bit 0 Add volume overflow inappropriate increase Bit 1 Frame error Bit 2 empty pipe Bit 3 input output overflow Bit 4 reserv...

Страница 53: ...er LSB xxh xxh 10 xxh MSB 43h manufacturer identification 4Dh xxh dimension code 07h water meter 15 xxh access number xxh error code 00h signature 00h 0Ch DIF 8digit BCD 20 78h VIF manufacturer identification xxh SN LSB xxh xxh xxh MSB 25 04h DIF 4 Bytes binär codiert 10h 16h VIF volume Σ depending on the decimal place xxh volume Σ LSB xxh xxh 30 xxh MSB 84h DIF 4 Bytes binär codiert 40h DIFE UNIT...

Страница 54: ...Bytes binär codiert C0h DIFE 40h DIFE UNIT3 10h 16h VIF volume depending on the decimal place 50 xxh volume LSB xxh xxh xxh MSB 04h DIF 4 Bytes binär codiert 55 38h 4Eh VIF flow rate depending on the decimal place xxh flow rate LBS xxh xxh xxh MSB 60 01h DIF 1 Byte binär codiert FDh VIF extension of the VIF codes 0Fh VIFE software version xxh software version value 01h DIF 1 Byte binär codiert 65 ...

Страница 55: ...uttons and select the data on the line which is then con firmed by the E button The customer can select from these indications namely both on the first and the second lines Date and Time Customer volume user defined volume rV Total volume V sum of volumes in both directions V Volume directionreverse flow volume V Volume direction volume in positive flow direction V Flow bar graph Flow current flow...

Страница 56: ... turned off after the last activation of a button Use the and buttons to select the desired settings from menu permanent 40sec 20sec 10sec switched off 10 SERIAL NUMBER The serial number is registered in the factory and cannot be changed by user 11 CALIBRATION CONSTANTS Calibration constants are set by promesstec and can not be changed by the user Changes can only be made by an authorized person w...

Страница 57: ...easuring tube filling If the meter was or dered without the empty tube test electrode the flooding test cannot be activated 13 FIRMWARE VERSION The firmware version is registered in the factory and cannot be changed by user 14 DEAD BAND MEASUREMENT START SUPPRESSION Star of measurement is registered in the factory and can not be changed by user Mo difications can only be carried out by an authoriz...

Страница 58: ...ves first and se cure a real zero flow stationary medium in the system 16 FLOW SIMULATION Flow simulation serves for comfortable setting and checking the systems in which the flow meter is used without necessity to use realistic flow of medium through the meter and without necessary installation of the meter in the pipeline The display shows the simulated flow and current and impulse outputs of th...

Страница 59: ...is possible to reset all or only certain volumetric counters If you want to perform resetting press E and select which counter you wish to reset V V V or all After resetting the date when the last reset was performed is displayed and which counter was reset again V V V or all 19 NOMINAL DIAMETER DN This parameter is configured by promesstec and cannot be changed The DN change can only be performed...

Страница 60: ... flow indication press E Use the and buttons to set the required number of decimal places and by con firming with E go to setting the flow unit representation 22 Q DISPLAYED IN PER CENTS BAR GRAPH If you wish to set a bar graph range press E It is set here to which flow the bar graph l respond Q Q Q and the maximum flow at full indication of the horizontal linear graph of the Q range This is forme...

Страница 61: ...ged as well In consequence we recommend resetting of the counters changed in this way after reconfiguration 24 USER COUNTER WITH RESET OPTION It is the volumetric counter rV available to user who can reset it using external control buttons simultaneously and The number of decimal places can be selected from 3 to none Furthermore the selection of units is here L m3 If these parameters are changed t...

Страница 62: ...y board is connected non certified meter used for non billing purposes all volumetric counters will be reset as well The user password is cancelled and the access code is reset to original 0000 This applies to calibration of the meter as well Before activating this function it is useful to record or make a back up of the data of all counters This function can be activated without the access code I...

Страница 63: ...com I Internet www promesstec com Expansion module The MDW MDH can be equipped with an expansion module for expansion with the following function 1 DATALOGGER 2 MBus 3 DATENLOGGER MBus SDHC CARD DATALOGGER The expansion module is inserted in the slot found in power supply part of the meter and it is attached with an M3 screw MBus M3 screw ...

Страница 64: ...f the card is accepted and a log file exists at the same time the end of the file is searched and the data is added to the end of this file While the end of the file is searched the number of clusters searched and occupied is displayed in the lower left corner The number of clusters in a file for searching is limited to 4096 2MB If the log file is longer a new one is created increased by 1 The log...

Страница 65: ...dule communication parameters 2400Bd paEven 8 data bits 1 stop bit Address last two digits of the serial number Diagnostics Reception and transmission can be diagnosed in the SET menu communication Line 1 RS485 settings Rx reception on line 1 RS4858 MBus Modbus Tx transmission on line 1 RS485 MBus Modbus R1 reception on line 2 MBus Erweiterungsmodul T1 transmission on line 2 MBus Erweiterungsmodul...

Страница 66: ... replace it with a good one possibly use the PCB with another version of the power supply 6 Connect the flat cable connector and insert the PCB in the electronics cover in proper orientation 7 Using four screws fix the PCB with cover sheet to the evaluation unit box 8 Reconnect the cables and screw in the instrument housing cap Display PCB replacement 1 Unscrew the front cover with the glass windo...

Страница 67: ...es Threaded design Diameter nominal mm Threaded connection D External sensors L Building length of sensor H Building height of sensor Weight of detached flow sensor kg H Building height of comp meter Compact flow meter weight kg 10 15 3 8 70 70 193 196 90 90 4 4 177 177 5 5 20 80 206 95 4 182 5 25 1 90 206 100 5 187 6 32 1 100 233 105 5 192 6 40 1 116 256 113 6 200 7 50 2 136 261 123 6 210 7 ...

Страница 68: ...r L Building length of sensor H Building height of sensor Weight of detached flow sensor kg H Building height of comp meter Compact flow meter weight kg 10 15 51 90 110 2 195 3 20 61 90 120 2 205 3 25 71 90 130 3 215 4 32 82 90 140 3 226 4 40 92 110 150 4 236 5 50 107 110 165 4 251 5 65 127 130 185 5 271 6 80 142 130 200 6 286 7 100 168 200 226 7 312 8 125 194 200 253 9 338 10 150 224 200 283 11 3...

Страница 69: ...etached flow sensor kg H Building height of comp meter Compact flow meter weight kg 10 15 The outside diameter corresponds to the required pressure class and standards 200 140 4 230 5 20 200 150 4 240 5 25 200 160 5 250 6 32 200 175 6 265 7 40 200 185 7 275 8 50 200 215 9 300 10 65 200 235 11 320 12 80 200 250 12 335 13 100 250 275 19 360 20 125 250 305 26 390 27 150 300 335 37 420 38 200 350 395 ...

Страница 70: ...it ting D Outside L Sensor length Clamp L Sensor length Milk pipe screw connection H Sensor height Weight kg H Compact sensor height Compact sensor weight kg 10 DN 10 70 189 179 90 4 177 5 15 DN 15 70 182 172 90 4 177 5 20 DN 20 80 182 176 95 4 182 5 25 DN 25 90 182 186 100 5 187 6 32 DN 32 100 189 197 105 5 192 6 40 DN 40 116 189 220 113 6 200 7 50 DN 50 136 217 231 123 7 210 8 65 DN 65 151 on on...

Страница 71: ... measured place 7 3 Reduction in DN pipe If the pipe s DN is higher than that of the meter selected 7 4 Faults and their symptoms during measurement Unstable indications and readouts may appear due to big portion of solids in homogeneities as a result of the state of matter turning point of immixture continuous chemical reactions in the measured fluid use of diaphragm pumps or plunger pumps poor g...

Страница 72: ...ment use the original packaging or a suit able package To avoid a damage use for example antistatic plastic film shock absorbent material a marking as highly sensitive measuring instru ment 8 3 Cleaning Before cleaning the instrument disconnect the electrical connection Clean the instrument with a moist cloth Electrical connections must not come into contact with moisture Wash or clean the dismoun...

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