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SOUND VELOCITIES IN DIFFERENT GASES

The following table contains the sound velocity of various gases measured at 20 ºC.

Gases

Sound Velocity (m/s)

Gases

Sound Velocity (m/s)

Acetaldehyde

252.8

Ethylene

329.4

Acetylene

340.8

Helium

994.5

Ammonia

429.9

Hydrogen sulphide

321.1

Argon

319.1

Methane

445.5

Benzene

183.4

Methanol

347

Carbon dioxide

268.3

Neon

449.6

Carbon monoxide

349.2

Nitrogen

349.1

Carbon tetrachloride

CCl

150.2

Nitrogen monoxide

346

Chlorine

212.7

Oxygen

328.6

Dimethyl ether

OCH

213.4

Propane

N.A.

246.5

Ethane

327.4

Sulphur hexafluoride

137.8

Ethanol

267.3

November 2020

DELTA MOBREY reserves the right to change technical data without notice!

Содержание DMSP400 Series

Страница 1: ...0 USER S MANUAL ULTRASONIC LEVEL TRANSMITTER DMSP400 and DMSP500 series DELTA MOBREY LTD Hudson House Albany Park Camberley Surrey GU16 7PL UK 44 0 1252 729140 fax 44 0 1252 729168 www delta mobrey com e mail sales delta mobrey com ...

Страница 2: ...2 53 APPROVALS BKI ATEX Certificate No BKI20ATEX0019 X The Delta Mobrey Sonar Pulse DMSP range represents the next evolution in Delta Mobrey s range of ultrasonic level measurement instrumentation ...

Страница 3: ...3 53 BASIC CONCEPTS AND ELEMENTS OF THE ULTRASONIC MEASUREMENT ...

Страница 4: ...ROGRAMMING WITH THE DISPLAY MODULE 18 Display Module 19 STEPS OF THE DISPLAY MODULE 19 INDICATIONS OF THE DISPLAY MODULE AND LED STATUS 20 QUICKSET 21 FULL PARAMETER ACCESS 23 5 PARAMETERS DESCRIPTIONS AND PROGRAMMING 25 5 1 MEASUREMENT CONFIGURATION 25 5 2 CURRENT OUTPUT 31 5 3 RELAY OUTPUT 32 5 4 DIGITAL OUTPUT 32 5 5 MEASUREMENT OPTIMISATION 33 5 6 VOLUME MEASUREMENT 37 5 7 VOLUME FLOW MEASURIN...

Страница 5: ...es from the time of flight the distance between the sensor and the surface which constitutes the basis of all output signals of the DMSP400 and DMSP500 A Total beam angle of 5 7 at 3 dB as is featured by most of DELTA MOBREY s transducers ensuring a reliable measurement in narrow tanks with uneven side walls as well as in process tanks with various protruding objects Furthermore as a result of the...

Страница 6: ... the measured distance plus 0 05 of the range Resolution Depending on the measured distance 2 m 1 mm 2 5 m 2 mm 5 10 m 5 mm 10 m 10 mm 6 5 ft 40 mil 6 5 ft to 16 ft 80 mil 16 ft to 32 ft 200 mil 32 ft 400 mil Outputs Analogue 4 20 mA 3 9 20 5 mA Rmax Ut 12 V 0 02 isolated protection against surge transients SPDT relay 30 V 1 A DC 48 V 0 5 A AC Loop power test connectors 2 pins for mV meter range 2...

Страница 7: ...Ex marking ATEX II 1 G Ex ia IIB T6 T4 Ga Intrinsically safe data Ci 15 nF Li 200 H Ui 30 V Ii 140 mA Pi 1 W Ex power supply loading Uo 30 V Io 140 mA Po 1 W Medium temperature PVDF transducer 20 C 80 C Temperature class T6 Ambient temperature With metal housing 30 C 70 C with display 25 C 70 C with plastic housing 20 C 70 C ...

Страница 8: ...Q Transducer material PVDF PVDF PVDF Maximum measuring distance m ft 4 13 6 20 8 26 10 33 15 49 20 66 25 82 Min measuring distance Dead band m in 0 2 8 0 25 10 0 35 14 0 45 18 0 6 24 Total beam angle 3 dB 6 5 7 5 7 Measurement frequency 80 kHz 80 kHz 50 kHz 60 kHz 40 kHz 20 kHz Process connection 1 thread 2 thread Flange from the transducer face ...

Страница 9: ...h 15 NPT length 22 2 x M20x1 5 2 x 1 2 NPT 89 97 5 2 BSP or NPT BSP length 15 NPT length 22 80 DMSP F G DMSP J K DMSP L M P Q 74 JIS 10K 80A DIN DN80 PN16 ANSI 3 150 psi 89 2 x 1 2 NPT 2 x M20x1 5 97 5 19 46 122 JIS10K125A ANSI5 150psi DINDN125PN16 89 2xM 20x1 5 2x1 2 NP T 97 5 19 43 89 2xM20x1 5 2x1 2 NPT 97 5 19 62 DINDN150PN16 ANSI6 150psi JIS10K150A Ø148 Min required flange size ...

Страница 10: ...cal regulations at 1 5 times higher pressure than the nominal pressure value Devices should be grounded by connecting their grounding screws to the equipotential system The device should read or programmed through IR port only outside of the explosive hazardous atmosphere because the infrared interface connected to the computer is not an explosion proof apparatus 2 6 MAINTENANCE REPAIR AND STORAGE...

Страница 11: ...is on the radius r 0 3 0 5 R of the cylindrical tank silo Take also sonic cone on page 1 into consideration SENSOR ALIGNMENT The sensor face has to be parallel to the surface of the liquid within 2 3 TEMPERATURE Make sure that the transmitter will be protected against overheating by direct sunshine Sunshade ...

Страница 12: ...mpossible If possible a location should be found where foaming is the least device should be located as far as possible from liquid inflow or a stilling pipe or well should be used r Ø D L L Dmin DMSP F G DMSP J K L M DMSP P Q 90 80 200 80 350 85 500 90 For values contact your distributor WIND Intensive air gas movements in the vicinity of the ultrasonic cone is to be avoided A strong draft of win...

Страница 13: ...weir applied 3 3 INSTALLATION AND ELECTRICAL CONNECTION Installation of the BSP or NPT threaded models Screw the unit in to its place Use open wrench for tightening max torque is 20 Nm After tightening the enclosure can be rotated to the proper position Safety bolt prevents rotation more than 350 The unit may be damaged by electrostatic discharge EDS via its terminal thus apply the precautions com...

Страница 14: ... with the type number DMSP400 and DMSP500 are already equipped with the Display Module The DMSP400 and DMSP500 is fully operational without the Display Module The Display Module is only needed for programming and or displaying measurement values The unit will measure during programming in accordance with the previous parameters The new modified parameters will only be effective after returning to ...

Страница 15: ...t Note Current output can also be assigned in inverted mode 4 mA 100 Full 20 mA 0 Empty RELAY Procedure of programming press button in the relevant sequence and check the state of the LED s Symbols for the states of the LED s LED is off LED is blinking LED is on LEDs are blinking alternatively Dont care Minimum level 0 empty tank assignment to 4 mA Action Led state following the action B B Use lev...

Страница 16: ...igned to the distance see picture 4 Release buttons Programming completed Error state indication by the analogue signal Check for a valid echo as above As a result of this setting the value of the analogue output will be 3 8 mA 22 mA or according last value hold until the error is ceased Action Led state following the action 1 Press button steadily DMSP400 500 in programming mode 2 Press any of th...

Страница 17: ...ion Led state following the action 1 Press NEXT button steadily DMSP400 500 in programming mode 2 Press ENTER E button steadily Default loaded Indication of mistakes by LEDs made during programming Action Led state following the action Possible correction Attempted programming blinking twice no Echo Find a valid Echo Attempted programming blinking three times no access possible With Display Module...

Страница 18: ...LL PARAMETER ACCESS QUICKSET 5 2 4 Recommended as a simple and fast way to set up the DMSP400 500 by 6 basic parameters for the following basic settings marked by abbreviations easy to remember Engineering unit for the display Metric or US Maximum measuring distance H Assignment of min level to 4 mA Assignment of max level to 20 mA Error indication by the current output Damping time Full Parameter...

Страница 19: ...OM digital Hart communication VALID presence of valid echo IrDA Infrared communication port for logger readout diagnostics and software upgrade STEPS OF THE DISPLAY MODULE Programming will be performed by the pressing and releasing the relevant one or two keys simultaneously Single key pressing ENTER E to select parameter address and go to parameter value to save parameter value and return to para...

Страница 20: ...l function used only in level and distance measurement modes UP DOWN Notes If after pressing ENTER E blinking does not spring over from the parameter address to the parameter value this means that the parameter is either a read out type or the secret code prevents the modification see P99 If the modification of the parameter value is not accepted i e the parameter value keeps blinking after pressi...

Страница 21: ...indications FAIL blinking Display screens can be scrolled by pressing key NEXT To return to the screen of the selected measurement mode key ENTER E should be pressed see P01 chapter 6 1 Temperature can be displayed by pressing UP C F Current output value can be displayed by pressing DOWN m A Vol Flow Distance Error See for possible readouts P01 QUICKSET Recommended as a simple and fast way to star...

Страница 22: ...actory default with the corresponding engineering units H x x x x H xxxx maximum measuring distance Distance between transducer face and tank bottom Manual set value Use UP DOWN NEXT keys and save it by ENTER E Automatic use the GET LEVEL function UP DOWN to obtain actual measured value with level in tank or a fixed target i e wall GET LEVEL functions only if ECHO LED is lit and save it as above D...

Страница 23: ...hold last value d t x x x x Damping time select required damping time by UP DOWN key and save it as above DEFAULT 60 sec for liquids 300 sec for solids Note Current output can also be programmed for inverted operation 4 mA 100 Full 20 mA 0 Empty Description of failures can be found under the chapter 7 Error codes FULL PARAMETER ACCESS Full Parameter Access is the highest programming level to acces...

Страница 24: ...ncel all modifications of the actual programming phase Pressing for 3 sec is required while CANCEL will be displayed for warning Neglect the modification of the Parameter Value and return to the Parameter Address without saving the modifications NEXT DOWN Reset entire device to Factory Default Since this action will reset all parameters LOAD will appear on the display to confirm press to escape pr...

Страница 25: ...result in loading the factory default with the corresponding engineering units a Operating measurement mode 0 Liquid level measurement b Engineering units according to c Attention mind the sequence When programming this parameter the right value a will be blinking first Metric US 0 m ft 1 cm inch c Calculation system 0 Metric 1 US FACTORY DEFAULT 000 ...

Страница 26: ... VOL Volume Level Distance 4 Volume in percentage VOL Volume Volume Level Distance 5 Flow FLOW Flow TOT1 TOT2 Level Distance Parameter value b will determine that the height of the Bargraph will be proportional to the current output or to the Echo strength b Bargraph indication 0 Echo strength 1 Current output FACTORY DEFAULT 11 P02 cba Calculation units a Temperature Attention mind the sequence W...

Страница 27: ...nent Over the value of 1x1010 Err4 overflow will be displayed 0 000 9 999 x xxx 10 000 99 999 xx xx 100 000 999 999 xxx x 1000 000 9999 999 xxxx x 10000 000 99999 999 xxxxx x 100000 000 999999 999 xxxxxx x 1 million 9 99999 109 x xxxx e exponential format 1 1010 over overflow Err4 Rounding Parameter Value a Steps In The Displayed Value A couple of millimetres of fluctuation of the basic DIST value...

Страница 28: ...med greatest distances DEFAULT values which can be measured by the units are listed in the table below For the actual application the maximum distance to be measured i e the distance between the sensor and the bottom of the tank should be entered in P04 To obtain the best accuracy measure this distance in the empty tank with the DMSP400 and DMSP500 by using the GET LEVEL function by double key pre...

Страница 29: ...nating from the bottom rim of a stand off pipe or from any object protruding into the ultrasonic cone near to the transmitter By entering a value higher than the factory default the minimum measuring range will be extended and fixed to the specified value To return to the factory programmed DEFAULT value of the minimum measuring distance press NEXT DOWN DMSP400 and DMSP500 Minimum measuring distan...

Страница 30: ...level and volume will be based on the programmed tank dimensions therefore the measured or calculated process values will not be influenced in any way by the far end blocking value B Open channel flow metering Far end blocking will be used for those small levels below which the accurate volume flow calculation is no longer possible If the liquid level in the flume weir falls below the blocked out ...

Страница 31: ...e change of the measured or calculated process value and the change of the current output be either direct or inverse E g lev 1 m assigned to 4 mA and lev 10 m assigned to 20 mA represents direct proportion and lev 1 m assigned to 20 mA and lev 10 m assigned to 4 mA represents the inverse proportion FACTORY DEFAULT P10 0 level max distance P11 max level min distance H P12 a Error indication by the...

Страница 32: ...d every 1 10 100 1 000 or 10 000 m3 according to P16 R e l a y 1 0 m 3 E n e r g i s e d D e e n e r g i s e d C 1 C 2 1 4 0 m s T O T T i m e 1 0 m P 1 6 3 2 0 m 3 P16 0 1m3 P16 1 10 m3 P16 2 100 m3 P16 3 1 000 m3 P16 4 10 000 m3 In de energised state of the device the C1 circuit is closed The Relay LED is on when the C2 circuit is closed FACTORY DEFAULT P13 2 P14 Relay parameter Operating value ...

Страница 33: ...iple echos a Compensation Applied 0 OFF In case the DMSP400 500 is not mounted in the centre of the top and the top is flat 1 ON In case the DMSP400 500 is mounted in the centre of a tank with dome shaped top FACTORY DEFAULT 0 P24 a Target tracking speed In this parameter evaluation can be speed up at the expense of the accuracy a Tracking speed Remark 0 Standard For most applications 1 Fast For f...

Страница 34: ...ally This parameter only influences the echo selection within the measuring window a Echo in the window to be selected Remark 0 With the highest amplitude For most applications both with liquids and solids 1 First one For liquids applications with multiple echoes within the Measuring Window FACTORY DEFAULT 0 P26 Level elevation rate filling speed m h P27 Level descent rate emptying speed m h These...

Страница 35: ...ss display and analogue output will hold last value 2 Advance to full During echo loss in case of filling the reading on the display and analogue output will shift towards the full tank state with a level elevation rate filling speed pre set in P26 3 Immediate indication In case of echo loss the display will immediately change to no Echo and the outputs will change according to the Error Indicatio...

Страница 36: ...y in the gases above the measured surface differs largely from that of in air Recommended for applications where the gas is more or less homogeneous If it is not the accuracy of the measurement can be improved using 32 point linearisation P48 P49 For sound velocities in various gases see section Sound Velocities FACTORY DEFAULT Metric P00 EU 343 8 m s US P00 US 1128 ft s P32 Specific gravity If yo...

Страница 37: ...ottom P41 P43 P44 02 Standing rectangular tank with chute P41 P42 P43 P44 P45 b3 Lying cylindrical tank shape value of b as bellow P40 b P41 P42 04 Spherical tank P41 FACTORY DEFAULT 00 P41 45 Tank dimensions Standing cylindrical tank with hemispherical bottom Standing cylindrical tank with conical bottom Standing rectangular tank with or without chute b 0 P40 b 1 b 2 b 3 If nochute P43 P44andP45 ...

Страница 38: ...S Rectangular P46 P41 P42 13 Khafagi Venturi P46 P42 14 Bottom step weir P46 P42 15 Suppressed rectangular or BAZIN weir P46 P41 P42 16 Trapezoidal weir P46 P41 P42 17 Special trapezoidal 4 1 weir P46 P42 18 V notch weir P46 P42 19 THOMSON 90 notch weir P46 20 Circular weir P46 P41 21 General flow formula Q l s 1000 P41 hP42 h m P46 P41 P42 FACTORY DEFAULT 0 P41 45 Flume weir dimensions FACTORY DE...

Страница 39: ... 3 305 0 h 372 s m Q P42 P42 2 5 P42 Q m3 s K P42 h1 6 P 2 3 A A P46 EchoTREK EchoTREK P42 P P40 10 Palmer Bowlus D 2 flume Q m3 s f h1 P41 P412 5 where h1 m h P41 10 P04 P46 h P41 D D 10 1 2 D 2 P42 m K 3 05 2 450 4 57 2 400 6 10 2 370 7 62 2 350 9 14 2 340 15 24 2 320 ...

Страница 40: ...53 P40 11 Palmer Bowlus D 3 flume Q m3 s f h1 P41 P412 5 where h1 m h P41 10 P04 P46 h P41 D D 10 1 2 D 3 P40 12 Palmer Bowlus Rectangular flume Q m3 s C P42 h1 5 where C f P41 P42 D P42 P46 P04 h D 10 P41 ...

Страница 41: ...E K P40 14 Bottom step weir 0 0005 Q m3 s 1 0 3 P42 m 15 0 1 h m 10 Q m3 s 5 073 P42 h1 5 Accuracy 10 P 4 0 1 4 P 4 6 P 4 2 h P40 15 Suppressed rectangular or BAZIN weir 0 001 Q m3 s 5 0 15 P41 m 0 8 0 15 P42 m 3 0 015 h m 0 8 Q m3 s 1 7599 1 0 1534 P41 P42 h 0 001 1 5 Accuracy 1 P 4 0 1 5 P 0 4 P 4 6 h P 4 2 P 4 1 ...

Страница 42: ...2 47 Accuracy 5 P 4 0 1 6 P 0 4 P 4 6 h P 4 2 P 4 1 P40 17 Special Trapezoidal 4 1 weir 0 0018 Q m3 s 50 0 3 P42 m 10 0 1 h m 2 Q m3 s 1 866 P42 h1 5 Accuracy 3 1 4 P 4 0 1 7 P 4 6 P 0 4 h P 4 2 P40 18 V notch weir 0 0002 Q m3 s 1 20 P42 100 0 05 h m 1 Q m3 s 1 320 tg P42 2 h2 47 Accuracy 3 P 4 0 1 8 h P 4 6 P 4 2 P 0 4 ...

Страница 43: ... 4 h 9 0 P40 20 Circular weir 0 0003 Q m3 s 25 0 02 h m 2 Q m3 s m b D2 5 m 0 555 0 418h P41 P41 0 11 h Accuracy 5 P 4 0 2 0 P 4 6 P 0 4 h P 4 1 P46 Distance between transducer face and level of Q 0 P46 is always the distance between the transducer face and the level where the volume flow is 0 FACTORY DEFAULT 0 ...

Страница 44: ... a 2x32 matrix consisting of two columns Left column L Right column r LEVEL measured LEVEL or VOLUME or FLOW to be transmitted and displayed The left column values indicated on the display as L contain the measured LEVEL values The right column values indicated on the display as r contain the calibrated values and are interpreted according to the selected measurement value in P01 a Number of data ...

Страница 45: ...see chapter Error Codes 5 9 INFORMATIONAL PARAMETERS READ OUT PARAMETERS P60 Overall operating hours of the unit h Indication varies according to the elapsed time Operating hours Indication form 0 to 999 9 h xxx x 1000 to 9999 h xxxx Over 9999 h X xx e meaning x xx 10e P61 Time elapsed after last switch on h P62 Operating hours of the relay h P63 Number of switching cycles of the relay h Indicatio...

Страница 46: ...ber of yy Serial number of the echo xx value of DIST or AMPL echos DISTANCE DISTANCE AMPLITUDE AMPLITUDE P71 Distance of the of Measuring Window P72 Amplitude of the Echo in the Measuring P73 Echo Position time ms P74 Signal To Noise Ratio Ratio Measurement conditions Over 70 Excellent Between 70 and 30 Good Under 30 Unreliable P75 Blocking Distance The actual close end blocking distance will be d...

Страница 47: ...esetable Resetting TOT1 totaliser 1 Go to the parameter P77 2 Press NEXT DOWN simultaneously 3 Display will indicate t1 Clr 4 Press ENTER E to delete 5 11 SUPPLEMENTARY PARAMETER OF THE LOGGER P79 Free space of logger in percent If the value is 0 the registry has overflown and every new entry will overwrite the oldest one Clearing the logger 1 Enter parameter P79 2 Press keys 3 The display flashes...

Страница 48: ...ording to the description under 4 4 Press ENTER E to quit test mode and return the parameter address P81 a Relay test The actual state of the relay can be seen on the display code according to the table below and symbol on the screen Test the relay by pressing UP and DOWN while observing change of the symbol and the code or listening to the ticking of the relay or checking on off resistance by a s...

Страница 49: ...h a cycle time set in P85 P85 Cycle time for simulation sec P86 Simulated low level value m P87 Simulated high level value m 5 14 ACCESS LOCK P99 dcba Access Lock by Secret Code The purpose of this feature is to provide protection against accidental or intentional re programming of parameters The Secret Code can be any value other than 0000 Setting a Secret Code will automatically be activated whe...

Страница 50: ...received within the measuring range specified in P04 and P05 Review programming also look for installation mistake 12 Linearisation table error both L 1 and L 2 are zero no valid data pairs See the Section Linearisation 13 Linearisation table error there are two same L i data in the table See the Section Linearisation 14 Linearisation table error the r i values are not monotone increasing See the ...

Страница 51: ...igned to 20 mA P39 40 Real time clock hour and minute P12 31 Error indication by the current output P40 38 Selection of tank shape open channel P13 32 Relay function P41 37 Dimensions of tank Open Channel P14 32 Relay parameter Operating value P42 37 Dimensions of tank Open Channel P15 32 Relay parameter Releasing value P43 37 Dimensions of tank Open Channel P16 32 Relay parameter Pulse rate P44 3...

Страница 52: ...ycle time P64 45 Actual temperature of the transducer P86 49 Simulation low level P65 38 Maximum temperature of the transducer P87 49 Simulation high level P66 45 Minimum temperature of the transducer P88 N A P67 N A P89 N A P68 N A P90 N A P69 N A P91 N A P70 46 Echo Map P92 N A P71 46 Distance of the measuring window P93 N A P72 46 Amplitude of the in the measuring window P94 N A P73 46 Distance...

Страница 53: ...ydrogen sulphide H2S 321 1 Argon Ar 319 1 Methane CH4 445 5 Benzene C6H6 183 4 Methanol CH3OH 347 Carbon dioxide CO2 268 3 Neon Ne 449 6 Carbon monoxide CO 349 2 Nitrogen N2 349 1 Carbon tetrachloride CCl4 150 2 Nitrogen monoxide NO 346 Chlorine Cl2 212 7 Oxygen O2 328 6 Dimethyl ether CH3OCH3 213 4 Propane N A C3H8 246 5 Ethane C2H6 327 4 Sulphur hexafluoride SF6 137 8 Ethanol C2H3OH 267 3 Novemb...

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