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7 Maintenance and fault rectification

OPTISOUND 3020 C • Two-wire 4 … 20 mA/HART

30507-EN-190318

Error

Cause

Rectification

E013

no measured value available Sensor in boot phase

Sensor does not find an echo, e.g. due to faulty installation

or wrong parameter adjustment

E017

Adjustment span too small

Carry out a fresh adjustment and increase the distance be-

tween min. and max. adjustment

E036

no operable sensor software Carry out a software update or send instrument for repair

E041

Hardware error, electronics

defective

Exchange the instrument or send it in for repair

Depending on the reason for the fault and the measures taken, the

steps described in chapter "

Set up

" may have to be carried out again.

7.3 Exchanging the electronics module

If the electronics module is defective, it can be replaced by the user.
In Ex applications, only instruments and electronics modules with ap-

propriate Ex approval may be used.
If there is no electronics module available on site, one can be ordered

from the Krohne agency serving you.

7.4 How to proceed if a repair is necessary

If it is necessary to repair the instrument, please contact the responsi-

ble Krohne agency.

Error messages via the

display and adjustment

module

Reaction after fault recti

fication

Содержание OPTISOUND 3020 C

Страница 1: ...OPTISOUND 3020 C Handbook Ultrasonic Level Transmitter Two wire 4 20 mA HART ...

Страница 2: ...ting 10 4 1 General instructions 10 4 2 Mounting instructions 12 5 Connecting to power supply 19 5 1 Preparing the connection 19 5 2 Connection procedure 20 5 3 Wiring plan single chamber housing 21 5 4 Wiring plan double chamber housing 22 5 5 Switch on phase 24 6 Set up with the display and adjustment module 25 6 1 Insert display and adjustment module 25 6 2 Adjustment system 26 6 3 Setup steps ...

Страница 3: ... 190318 Safety instructions for Ex areas Take note of the Ex specific safety instructions for Ex applications These instructions are attached as documents to each instrument with Ex approval and are part of the operating instructions Editing status 2019 03 12 ...

Страница 4: ...vailable to the qualified personnel and implemented 1 3 Symbols used Information tip note This symbol indicates helpful additional information Caution If this warning is ignored faults or malfunctions can result Warning If this warning is ignored injury to persons and or serious damage to the instrument can result Danger If this warning is ignored serious injury to persons and or destruction of th...

Страница 5: ...ncorrect mounting or adjustment Thus dam age to property to persons or environmental contamination can be caused Also the protective characteristics of the instrument can be influenced 2 4 General safety instructions This is a state of the art instrument complying with all prevailing regulations and directives The instrument must only be operated in a technically flawless and reliable condition Th...

Страница 6: ... automation technology user association in the process industry in Germany The published NAMUR recommendations are accepted as the standard in field instrumentation The device fulfils the requirements of the following NAMUR recom mendations NE 21 2012 Electromagnetic compatibility of equipment NE 43 Signal level for fault information from measuring transduc ers NE 53 Compatibility of field devices...

Страница 7: ...anual The respective scope of delivery results from the order specification The OPTISOUND 3020 C consists of the components Process fitting with transducer Housing with electronics Housing lid with integrated display and adjustment module optional The components are available in different versions 1 2 3 Fig 1 OPTISOUND 3020 C version with plastic housing 1 Housing lid with integrated display and a...

Страница 8: ...The backlight of the display and adjustment module is powered by the sensor The prerequisite for this is a supply voltage at a certain level The exact voltage specifications are stated in chapter Technical data 3 3 Packaging transport and storage Your instrument was protected by packaging during transport Its capacity to handle normal loads during transport is assured by a test based on ISO 4180 T...

Страница 9: ...solar radiation Avoiding mechanical shock and vibration Storage and transport temperature see chapter Supplement Technical data Ambient conditions Relative humidity 20 85 With instrument weights of more than 18 kg 39 68 lbs suitable and approved equipment must be used for lifting and carrying Storage and transport temperature Lifting and carrying ...

Страница 10: ...ntain the housing protection make sure that the housing lid is closed during operation and locked if necessary Make sure that the degree of contamination specified in chapter Technical data meets the existing ambient conditions Fig 2 Measures against moisture ingress Metric threads In the case of instrument housings with metric thread the cable glands are screwed in at the factory They are sealed ...

Страница 11: ... the medium reaches the transducer buildup can form on it and cause faulty measurements later on 1 3 2 100 0 Fig 4 Measuring range operating range and max measuring distance 1 full 2 empty max measuring distance 3 Measuring range Gauge pressure in the vessel does not influence OPTISOUND 3020 C Low pressure or vacuum does however damp the ultrasonic pulses This influences the measuring result parti...

Страница 12: ... the center of dished or round vessel tops multiple echoes can arise These can however be suppressed by an appropriate adjustment see chapter Setup 1 2 200 mm Fig 5 Mounting on round vessel tops 1 Reference plane 2 Vessel center or symmetry axis If this distance cannot be maintained a false signal suppression should be carried out during setup This applies particularly if buildup on the vessel wal...

Страница 13: ...in out of the socket 10 mm Fig 7 Recommended socket mounting If the reflective properties of the medium are good you can mount OPTISOUND 3020 C on sockets which are higher than the length of the transducer You will find recommended values for socket heights in the following illustration The socket end should be smooth and burr free if possible also rounded Carry out a false signal suppression Moun...

Страница 14: ...o maximum Such an arrangement is suitable primarily for open vessels such as e g overflow basins 4 5 200 mm 7 87 400 m m x 400 m m 15 75 x 15 75 Fig 10 Beam deflector The ultrasonic sensor should be installed at a location where no installations cross the ultrasonic beam Vessel installations such as for example ladders limit switches heat ing spirals struts etc can cause false echoes that interfer...

Страница 15: ... and avoid direct false echoes α α α α α α Fig 11 Cover flat large area profiles with deflectors If there are agitators in the vessel a false signal suppression should be carried out with the agitators in motion This ensures that the interfering reflections from the agitators are saved with the blades in different positions Fig 12 Agitators Do not mount the instruments in or above the filling stre...

Страница 16: ...ar is unaffected by foam generation and is particu larly suitable for such applications If there are strong air currents in the vessel e g due to strong winds in outdoor installations or air turbulence e g by cyclone extraction you should mount OPTISOUND 3020 C in a standpipe or use a differ ent measuring principle e g radar or guided radar TDR By using a standpipe surge or bypass tube the influen...

Страница 17: ...ely adhesive products The short examples give you introductory information on flow measurement Detailed planning information is available from flume manufacturers and in special literature 3 4 hmax 50 mm 90 2 3 1 h max d min 2 mm x h max 90 4 2 3 Fig 15 Flow measurement with rectangular overfall dmin min distance of the sensor see chapter Technical data hmax max filling of the rectangular spillway...

Страница 18: ...he sensor to max storage level 2 3 4 x hmax 90 hmax d B 1 Fig 16 Flow measurement with Khafagi Venturi flume d Min distance to sen sor hmax max filling of the flume B tightest constriction in the flume 1 Position sensor 2 Venturi flume In general the following points must be observed Installation of the sensor at the inlet side Installation in the centre of the flume and vertical to the liquid sur...

Страница 19: ...ents in the circuit see load values in chapter Technical data The instrument is connected with standard two wire cable without screen If electromagnetic interference is expected which is above the test values of EN 61326 1 for industrial areas screened cable should be used Make sure that the cable used has the required temperature resist ance and fire safety for max occurring ambient temperature U...

Страница 20: ...emove it by turn ing it to the left 3 Loosen compression nut of the cable gland and remove blind plug 4 Remove approx 10 cm 4 in of the cable mantle strip approx 1 cm 0 4 in of insulation from the ends of the individual wires 5 Insert the cable into the sensor through the cable entry 6 Lift the opening levers of the terminals with a screwdriver see following illustration 7 Insert the wire ends int...

Страница 21: ... chamber housing The following illustrations apply to the non Ex as well as to the Ex ia version 1 4 4 4 2 3 Fig 18 Material versions single chamber housing 1 Plastic 2 Aluminium 3 Stainless steel 4 Filter element for air pressure compensation I2C Display 2 2 Fig 19 Electronics and connection compartment single chamber housing 1 Spring loaded terminals for voltage supply 2 Ground terminal for conn...

Страница 22: ...ge supply signal output 5 4 Wiring plan double chamber housing The following illustrations apply to the non Ex as well as to the Ex ia version 1 2 3 4 5 Fig 21 Double chamber housing 1 Housing cover connection compartment 2 Blind plug 3 Housing cover electronics compartment 4 Filter element for air pressure compensation 5 Cable gland Wiring plan Housing overview ...

Страница 23: ...able to the connection compartment 2 Spring loaded terminals for display and adjustment module 3 Plug connector for service interface 1 2 3 Display 1 2 I2C Fig 23 Connection compartment double chamber housing 1 Spring loaded terminals for voltage supply 2 Plug connector for service interface 3 Ground terminal for connection of the cable screening Electronics compartment Connection compartment ...

Страница 24: ... recurrence the instrument carries out a self check for approx 30 seconds Internal check of the electronics Indication of the instrument type the firmware as well as the sen sor TAGs sensor designation Output signal jumps briefly approx 10 seconds to the set fault current Then the corresponding current is output to the cable the value corresponds to the actual level as well as the settings already...

Страница 25: ...e electronics you can choose any one of four different posi tions each displaced by 90 3 Press the display and adjustment module onto the electronics and turn it to the right until it snaps in 4 Screw housing lid with inspection window tightly back on Disassembly is carried out in reverse order The display and adjustment module is powered by the sensor an ad ditional connection is not necessary Fi...

Страница 26: ... can find the function of the individual keys in the previous illustration When the and keys are pressed quickly the edited value or the cursor changes one value or position at a time If the key is pressed longer than 1 s the value or position changes continuously When the OK and ESC keys are pressed simultaneously for more than 5 s the display returns to the main menu The menu language is then sw...

Страница 27: ...ted from maximum range to the requested range 100 0 1 m 39 37 5 m 196 9 2 1 3 Fig 27 Parameterisation example Min max adjustment 1 Min level max measuring distance 2 Max level min measuring distance 3 Reference plane The actual product level during this adjustment is not important because the min max adjustment is always carried out without changing the product level These settings can be made ahe...

Страница 28: ...alue in m corresponding to the percentage value for the full vessel Keep in mind that the max level must lie below the dead band 3 Save the settings with OK and move to Medium selection with Each product has different reflective properties In addition there are various interfering factors which have to be taken into account agitated product surfaces and foam generation with liquids dust generation...

Страница 29: ...ropriate keys save your settings and jump to the next menu item with the key A linearisation is necessary for all vessels in which the vessel volume does not increase linearly with the level e g in a horizontal cylindri cal or spherical tank and the indication or output of the volume is required Corresponding linearisation curves are preprogrammed for these vessels They represent the correlation b...

Страница 30: ...t Ground Flow Volume Without unit Depending on selection the different units are in turn available In the menu item Scaling the requested numerical value with deci mal point is entered for 0 and 100 of the measured value There is the following relationship between the indication value in the menu Display and the adjustment unit in the menu Device settings Indication value Distance Presentation of ...

Страница 31: ...s displayed in this menu item If no failure is detected by the sensor OK will be displayed If a failure is detected there will be a sensor specific flashing fault signal for example E013 The failure is also displayed in clear text for example No measured value available Information The fault message as well as the clear text indication are also carried out in the measured value display Measurement...

Страница 32: ...e nominal measuring range without magnification In the menu item Trend curve the following are available X Zoom Resolution 1 minute 1 hour 1 day Stop Start Interrupt a recording or start a new recording Unzoom Reset the resolution to minutes As default setting the recording pattern has 1 minute With the adjust ment software PACTware this pattern can be also set to 1 hour or 1 day Echo curve High s...

Страница 33: ...o optimise OPTISOUND 3020 C for applications in which the level changes very quickly To do this select the function Quick level change 1 m min Extended setting quick level change 1 m min Note Since with the function Quick level change 1 m min the genera tion of an average value of the signal processing is considerably reduced false reflections by agitators or vessel installations can cause measure...

Страница 34: ...rs Distance with radar and guided radar GWR With Profibus PA sensors the selection of the simulated value is made via the Channel in the menu Basic adjustments How to start the simulation 1 Push OK 2 Select the requested simulation variable with and confirm with OK 3 Set the requested numerical value with and 4 Push OK The simulation is now running with 4 20 mA HART a current is output and with Pr...

Страница 35: ...t Language No reset HART mode No reset Default setting Like basic adjustment but in addition special parameters are reset to default values 6 Peak value indicator The min and max distance and temperature values are reset to the actual value In this menu item you select the internal arithmetic unit of the sensor Unit of measurement m d The sensor is already set to the ordered national language In t...

Страница 36: ...ndard and multidrop mode The mode standard with the fixed address 0 means outputting the measured value as a 4 20 mA signal In Multidrop mode up to 15 sensors can be operated on one two wire cable An address between 1 and 15 must be assigned to each sen sor 7 In this menu item you determine the HART mode and enter the ad dress for multidrop HART mode Standard Address 0 The default setting is stand...

Страница 37: ...s and unintentional modifications If the PIN is activated perma nently it can be deactivated temporarily i e for approx 60 min in any menu item The instrument is delivered with the PIN set to 0000 PIN Disable permanently Only the following functions are permitted with activated PIN Select menu items and show data Read data from the sensor into the display and adjustment module In this menu item th...

Страница 38: ... cable entry plug cable length etc Sensor characteristics Display now 6 4 Menu schematic Basic adjustment Basic adjustment 1 Display Diagnostics Service Info Min adjustment 1 1 0 00 4 000 m d 3 000 m d Max adjustment 1 2 100 00 1 000 m d 2 000 m d Medium 1 3 Liquid Vessel form 1 4 Storage tank Damping 1 5 0 s Linearisation curve 1 6 Linear Sensor TAG 1 7 Sensor Display Basic adjustment 2 Display D...

Страница 39: ...justment 4 Display Diagnostics Service Info False signal suppression 4 1 Change now Extended setting 4 2 None Current output 4 3 Characteristic 4 20 mA Fail mode 3 6 mA Min current 3 8 mA Simulation 4 4 Start simulation Reset 4 5 Select reset Unit of measurement 4 6 m d select Language 4 7 Deutsch SIL 4 8 Not activated HART mode 4 9 Standard Address 0 Copy sensor data 4 10 Copy sensor data PIN 4 1...

Страница 40: ...0 C is equipped with a display and adjustment module the most important data can be read out of the sensor into the display and adjustment module The procedure is described in the operating instructions manual Display and adjustment module in the menu item Copy sensor data The data remain there permanently even if the sensor power supply fails If it is necessary to exchange the sensor the display ...

Страница 41: ... fault messages via the display adjustment module The procedure is described below Connect a multimeter in the suitable measuring range according to the wiring plan The following table describes possible errors in the current signal and helps to eliminate them Error Cause Rectification 4 20 mA signal not stable Level fluctuations Set damping via the display and adjustment module 4 20 mA signal mis...

Страница 42: ...Exchange the instrument or send it in for repair Depending on the reason for the fault and the measures taken the steps described in chapter Set up may have to be carried out again 7 3 Exchanging the electronics module If the electronics module is defective it can be replaced by the user In Ex applications only instruments and electronics modules with ap propriate Ex approval may be used If there ...

Страница 43: ...ed by spe cialised recycling companies We use recyclable materials and have designed the electronics to be easily separable WEEE directive The instrument does not fall in the scope of the EU WEEE directive Article 2 of this Directive exempts electrical and electronic equipment from this requirement if it is part of another instrument that does not fall in the scope of the Directive These include s...

Страница 44: ...er Alu die casting powder coated 316L Ʋ Ʋ Seal housing lid Silicone SI 850 R Ʋ Ʋ Inspection window housing cover Polycarbonate UL 746 C listed glass8 Ʋ Ʋ Ground terminal 316Ti 316L Ʋ Ʋ Cable gland PA stainless steel brass Ʋ Ʋ Sealing cable gland NBR Ʋ Ʋ Blind plug cable gland PA Weight 1 8 4 kg 4 8 8 lbs depending on the process fitting and housing Max torque mounting boss 25 Nm 18 44 lbf ft Input...

Страница 45: ...metal plate 2 x 2 m 6 56 x 6 56 ft Ʋ Ʋ False reflections Biggest false signal 20 dB smaller than the useful signal Measuring characteristics Ultrasonic frequency 55 kHz Interval 2 s dependent on the parameter adjustment Abstrahlwinkel at 3 dB 11 Adjustment time10 3 s dependent on the parameter adjustment Influence of the ambient temperature to the sensor electronics11 Average temperature coefficie...

Страница 46: ...adjustment module Voltage supply and data transmission through the sensor Indication LC display in dot matrix Adjustment elements 4 keys Protection rating Ʋ Ʋ unassembled IP 20 Ʋ Ʋ Mounted into the sensor without cover IP 40 Ambient temperature Display and adjustment module 20 70 C 4 158 F Material Ʋ Ʋ Housing ABS Ʋ Ʋ Inspection window Polyester foil Voltage supply Operating voltage Ʋ Ʋ Non Ex ins...

Страница 47: ...nts with approvals can have different technical data For these instruments please note the corresponding approval documents They are included in the scope of delivery 9 2 Dimensions Housing 112mm 4 13 32 117mm 4 39 64 114mm 4 31 64 69mm 2 23 32 ø 77mm 3 1 32 69mm 2 23 32 116mm 4 9 16 ø 77mm 3 1 32 ø 84mm 3 5 16 120mm 4 23 32 87mm 3 27 64 ø 84mm 3 5 16 M20x1 5 M20x1 5 NPT M20x1 5 NPT M20x1 5 NPT 1 ...

Страница 48: ...507 EN 190318 OPTISOUND 3020 C 1 2 153mm 6 1 32 20mm 25 32 63mm 2 31 64 ø 50mm 1 31 32 ø 74mm 2 58 64 60mm 2 23 64 G2A 2 NPT Fig 30 OPTISOUND 3020 C 1 Dead zone 0 4 m 1 312 ft 2 Measuring range with liquids up to 8 m 26 25 ft with solids up to 3 5 m 11 48 ft ...

Страница 49: ...49 9 Supplement OPTISOUND 3020 C Two wire 4 20 mA HART 30507 EN 190318 9 3 Trademark All the brands as well as trade and company names used are property of their lawful proprietor originator ...

Страница 50: ...nt output 33 F False signal suppression 32 Flow measurement 17 18 G Grounding 20 H HART mode 36 I Installation position 10 12 L Language 35 M Max adjustment 28 Min adjustment 27 Moisture 10 P PIN 37 Q Quick level change 33 R Reference plane 10 Reset 34 S Sensor orientation 14 Shielding 20 SIL 36 Simulation 34 Socket installation 13 V Voltage supply 8 W Wiring plan Double chamber housing 24 Single ...

Страница 51: ...51 Notes OPTISOUND 3020 C Two wire 4 20 mA HART 30507 EN 190318 ...

Страница 52: ...ers Vortex flowmeters Flow controllers Level meters Temperature assemblies Pressure transmitters Analysis products Products and systems for the oil and gas industry KROHNE Messtechnick GmbH Co KG Ludwig Krohne Straße 5 D 47058 Duisburg Tel 49 0 203 301 0 Tel 49 0 203 301 10389 info krohne de The current list of all KROHNE contacts and addresses can be found at www krohne com ...

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