Ludwig CSB70 Page 8 Manual Download

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(2) There are obstacles above or to the side of the level

(3) the instrument itself is bad
Tip: When you cannot find the cause repeatedly, please communicate with the manufacturer if
necessary

(1) There are obstacles above or to the side of the level. (Change the installation position or contact
the manufacturer)

(3) The setting or position of the installation port does not meet the requirements
C. Display numbers change back and forth

(1) Level height enters the blind zone

B. The displayed number does not change (it does not change with the level of the material).

(2) Strong interference sources, etc.

Host (unit: mm)

Sensor (unit: mm)

B. Dimensional drawing of split-panel instrumentation

C. Dimensional drawing of integrated
2-wire and 3-wire instrument

7.3 Instrument Size

005

Intelligent Integrated 2 Wire, 3 Wire; Split Wall Hanging, Panel Mounting

Summary of Contents for CSB70

Page 1: ...LUDWIG SCHNEIDER 德国罗德玮格仪表公司 Ultrasonic Level Gauge Manual 超声波液位计说明书 EN CH Ultrasonic Level Gauge Model CSB70 ...

Page 2: ...zhou Co Ltd Ludwig International Trade Shanghai Co Ltd TEL 400 860 9760 E mail lw ludwig schneider com cn OS www Ludwig Schneider com cn Page 001 054 超声波液位计型号 CSB70 055 108 Ludwig Schneider GmbH Co KG KGAmEichamt 4 6 97877 Wertheim EN CH 页 Ultrasonic Level Gauge Model CSB70 ...

Page 3: ...Error phenomenon and handling 045 1 Purpose 047 2 Main technical indicators 047 3 Electrical wiring diagram 048 4 Warranty 049 1 Resonance phenomenon 050 2 The liquid has entered the blind zone of the ultrasonic level gauge 051 3 Electromagnetic interference 053 4 The impact of takeover on measurement 054 一 Product design function label description 二 Intelligent integrated 2 wire 3 wire split wall...

Page 4: ... Gauge Body 1 2 Sign Description TEL 400 860 9760 www Ludwig Schneider com cn EN 7017872 0609 2018 CH EN Integrated LCD display Electrical interface Process connection Measuring body Model Voltage Accuracy Process connection Instrument number Output Range Protection level Production date 001 ...

Page 5: ... be used to measure the distance Intelligent Integrated 2 Wire 3 Wire Split Wall Hanging Panel Mounting 2 Installation Diagram Installation height G Air distance L Dead zone Current level H 3 Instrument Self Test After you test or install the meter and power on normally press the shift key to have an L value no need to set automatic detection it should be quite the actual air distance try to detec...

Page 6: ...or a few moments is detected When the meter sounds an alarm press any key to eliminate the alarm sound Press and hold the SET button for a few seconds the XXXX interface appears enter 0000 and press the SET button to enter the menu loop To exit press and hold the SET button for a few seconds Required number The factory default setting is to install the height measurement level and the current is w...

Page 7: ...limit audible alarm 21 First set of upper limit control 22 First set of lower limit control 4 The integrated 2 line menu is basically the same as above and the following functions are not available 25 The third set of upper limit control 26 The third set of lower limit control 23 The second set of upper limit control 24 The second set of lower limit control Transmission angle 6 12 Blind zone 0 20 ...

Page 8: ...or contact the manufacturer 3 The setting or position of the installation port does not meet the requirements C Display numbers change back and forth 1 Level height enters the blind zone B The displayed number does not change it does not change with the level of the material 2 Strong interference sources etc Host unit mm Sensor unit mm B Dimensional drawing of split panel instrumentation C Dimensi...

Page 9: ...umentation C Integrated 3 wire instrument D Integrated 2 wire instrument Current signal output 220VAC power supply 24DC power supply T r a n s d u c e r t e r m i n a l Corresponding connection Host terminal Engineering equipment input 24VDC power supply 24VDC power supply Engineering equipment input 006 Intelligent Integrated 2 Wire 3 Wire Split Wall Hanging Panel Mounting ...

Page 10: ...imum liquid level Air distance Installation height G Current level H Lowest liquid level When the displayed L value is equal to the air distance it means the installation is good Still pipe installation Flange mounting Bracket installation Do not make the probe and the liquid surface non vertical Do not install too close to thecontainer Do not install ontop of obstructions during sound wave transm...

Page 11: ...ing the cover must be performed after the power is turned off and no liquid can enter the instrument If liquid enters and causes failure it is not covered by the warranty There are three keys on the panel and the instrument can be debugged through these three keys The measured value is displayed on the LCD screen after commissioning 1 After the meter is powered on press and hold the SET button for...

Page 12: ...ment Figure 1 2 Schematic diagram of level measurement Distance measurement mode It is to measure the height of the probe s launch surface to the watersurface and the output 4 20ma corresponds to the height change of the distance Ultrasonic sensor Reference zero Low range point 0 4mA 20mA Measuring range Distance It is the length fromthe launch surface of the probeto the water surface or solid mat...

Page 13: ...Suggestion When the ultrasonic level meter is connected with interference equipment such as inverters and PLCs an isolation transformer should be added to the power part and a signal isolator should be added to the signal part and reliable grounding should be done The signal line should not be in the same trough with the power line and power line It should be installed separately through metal pip...

Page 14: ...Optional single channel is 2 groups Dual channels are 4 groups of AC 250V 8A or DC 30V 5A State programmable Product power consumption Product power consumption Product power consumption The split type is powered by a 24V power supply The power consumption without a relay is 100mA and with a relay it is 120mA 145mA for 2 relays 170mA for 3 relays 190mA for 4 relays The specific power is as follows...

Page 15: ...evel gauge enhanced 4 1 Level Gauge Installation Dimensions Physical map Structure diagram Physical picture side Physical map positive M48 2 or G1 1 2 thread sensor M60 2 or G2 thread sensor 012 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 16: ...ter Physical map Structure diagram 4 2 1 Understanding technical terms Range When selecting the instrument the meaning of the range is very important Please see the diagram below 4 1 Installation Guide 013 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 17: ...nch angle and false echo Try to make the axis of the sensor perpendicular to the surface of the medium and avoid any other objects within the launch angle Such as pipes and supports Liquid surface Smooth Ripple Large fluctuations such as Stirring blade Multiple of attenuation 0dB 5 10dB 10 20dB Percent attenuation 0 50 67 90 Increase the range multiple No need to increase 1x range 3 times the rang...

Page 18: ...d to increase 1x range 3 times the range Signal attenuation calculation method If there are multiple situations in the field it is necessary to add up these several situations to calculate the amount of signal attenuation Total minimum 15dB maximum 40dB It is recommended to use a plastic flange to connect the sensor during installation 4 2 3 bottom thread installation In this case if the actual ma...

Page 19: ...r with the flange hole Put the transducer into the flange hole As seen from the bottom of the flange Put a gasket with the same inner diameter under the flange Screw on the nut to fix the transducer The installed transducer 016 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 20: ... on the tank pool cover and bracket is basically the same as above After the probe is installed the emission surface of the probe must expose the cover plate or the waveguide Do not shrink inside the cover or waveguide 4 2 5 Measuring liquid 4 2 5 1 Flat top tank Flat top tanks generally have a very short tube The reference surface of the tube is the bottom surface of the flange The length of the ...

Page 21: ...ing surface of the probe must protrude more than 1 cm from the pipe and cannot be retracted in the pipe The probe is mounted on a threaded tube Split probe top lifting thread connection Similarly the split sensor can be installed with a top lifting thread The size of the lifting thread is M30 1 5 M32 1 5 M38 1 5 etc depending on the specific probe 018 EN 7017872 0609 2018 CH EN Ultrasonic Level Me...

Page 22: ... 150 180mm and the length of the probe thread of the ultrasonic level meter is not so long you can customize the extended probe to our company to make the probe The launch surface is lower than the bottom of the takeover In this case we need to pay attention to the proportional relationship between the diameter of the nozzle and the length of the nozzle Serial number 1 2 3 4 5 Takeover length 150m...

Page 23: ...s shown in the following table 4 2 5 3 Open container On the open container the bracket is installed on the top side Since the open container has no focusing effect The sensor can be installed in the middle of the container On open container top centered bracket installation Maximum range 5m 20m 50m Smallest Distance from the wall 0 5m 2 5m 6m Maximum range 10m 30m 60m Smallest Distance from the w...

Page 24: ...overs longer than 4 meters consult the manufacturer As long as the measuring tube can be kept clean there is no adhered medium and there is no seam inside it can be measured The measuring sleeve must be immersed in the medium at all times so as to ensure that the measurement in the measuring tube is accurate 4 3 1 Measuring solids In the field of measuring solids if the probe is retracted in the t...

Page 25: ... flange When using a threaded pipe to install the probe must expose more than 2cm from the bottom of the pipe 4 3 1 2 Threaded Pipe Installation Integrated sensor threaded pipe installation 022 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 26: ...edium 4 3 1 3 Gantry frame installation In the open container a gantry frame installation can be used and the takeover axis must be aligned with the container outlet or perpendicular to the surface of the medium Integrated sensor gantry frame installation Open air stockpile measurement installation on a lifting frame 023 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operati...

Page 27: ...ng time if it is not corroded by the liquid and no debris can adhere to the inner wall of the pipe so the measurement will be more accurate because the measurement will not be affected by other things in the container Impact of the device The inner diameter of the pipe should be as large as possible and the chamfered cut should be smooth The following figure shows the relationship between the take...

Page 28: ... measuring solid media it is different from measuring liquid it needs to use a conical extension tube the angle is 25 30 Extension tube not immersed in the medium Measure extended extension of solid media Maximum range 5m 15m Takeover minimum inner diameter Can be larger than this inside diameter 150m 250m Maximum range 10m 20m Takeover minimum inner diameter 200m 300m 025 EN 7017872 0609 2018 CH ...

Page 29: ... sloping horizontal plates are needed to refract false echoes If the upper surface of the lower part of the container has a flat surface the water inlet for various media must be blocked by a certain angle refractive plate There is a flat topped protrusion at the bottom of the container to add a refractive plate Obstacles in the container tubes The devices in the container such as tubes and bracke...

Page 30: ...nk mud tank asphalt tank cement mixing tank If the sensor is installed too close to the container wall the medium adhered on the container wall will cause a strong false echo so the sensor and the container wall must be kept a certain distance There is adhesion on the wall of the container a certain distance from the adhesion 027 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Settin...

Page 31: ... refractive plate Block it If there is a strong vortex or vortex in the container such as vortex caused by agitator or strong chemical reaction the measurement will be difficult The ideal way is the sensor probe can be installed in a waveguide or a bypass tube for measurement Obstacles at the bottom of the pool refracted with baffles The surface of the medium fluctuates greatly use a bypass tube o...

Page 32: ...or measurement 4 3 3 2 Common installation errors The sensor is installed in the wrong direction If the sensor is not installed on the surface of the medium the measurement signal will be weakened To ensure the best measurement results please align the axis of the sensor with the surface of the medium which is perpendicular to the surface of the interface to be measured Where bubbles are generated...

Page 33: ...uneven inner surface of the container wall the adhered medium the rivets screws stiffeners and welds on the container inner wall will cause strong false echoes and load on the effective echo signals So please note Keep the distance between the sensor and the container wall according to the maximum distance you need to measure See the table below for details The sensor is too close to the container...

Page 34: ...n the instrument circuit or components The cable connecting the sensor and the host cannot be in the same trunk with any AC power If it cannot be avoided in the same trunk the sensor cable must be protected by a metal tube to completely shield electromagnetic interference from AC power 1 Electrical connection diagram of single probe split standard ultrasonic level meter 485 232 and 4 20ma output t...

Page 35: ...t Current connected to mA1 Current connected to mA GND If the default state of the relay is normally open the wiring is connected to RLlnA and RLnB If the default state of the relay is normally closed the wiring is connected to RLlnA and RLnC Power cord power is AC connect L N The power source is DC 24V to 24VDC 24V to 24V DC 2 Integrated connection diagram Integrated enhanced four wire system Int...

Page 36: ... Integrated enhanced two wire system Two wire wiring diagram Schematic diagram of two wire system ammeter 033 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 37: ...egrated explosion proof four wire electrical connection diagram Four wire 24VDC power supply wiring diagram Four wire 220VAC power supply wiring diagram 034 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 38: ...proof two wire system 24VDC electrical connection diagram Schematic diagram of integrated explosion proof two wire system Integrated explosion proof two wire system connected to ammeter 035 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 39: ...ay interface Two line Chinese display interface Four wire Chinese display interface Four wire English display interface The menu modes are expert setting mode and easy setting mode Menu lookup table for easy setting mode see homepage See the appendix for the menu query table of the expert setting mode The menu interface and operation instructions in the expert setting mode are as follows Press the...

Page 40: ...will Global lock After the global lock you must enter the password to modify it The menu is locked When your parameters are set and you don t want others to change it lock the menu so you need to enter the password to unlock the menu The initial password of the level meter is 25 users can modify the initial password to set their own password special reminder please remember the password you set if...

Page 41: ...eference zero point of the level meter which is only meaningful when the level is measured the factory default setting is the maximum range Display unit There are three units to choose from m display in meters cm display in centimeters mm display in millimeters and the factory default setting is m High range point Set the output value of the 20mA corresponding to the level meter the factory defaul...

Page 42: ...ecified current after the drop wave which is greater than 3 6mA and less than 22mA and it is invalid when it is selected as hold max min The factory setting is 3 6mA by default Response speed there are three options slow medium and fast Slow slow response rate high measurement accuracy not easy to be interfered 3 measurement modes Mode selection There are two options for distance measurement and l...

Page 43: ... do not modify it by yourself it can only be modified under the guidance of professional and technical personnel 5 long sensitivity Please do not modify it by yourself it can only be modified under the guidance of professional and technical personnel 6 Long Threshold Please do not modify it by yourself it can only be modified under the guidance of professional and technical personnel 2 Blind zone ...

Page 44: ...low to high water levels 2 For example for water ingress the water level in the pool needs to be below 1 meter the water pump starts to inject water when the water level rises to 5 meters the water pump starts to stop injecting water The specific settings are as follows Alarm 1 mode There are three options off low alarm high alarm Closed Relay 1 has no effect low alarm relay 1 low alarm high alarm...

Page 45: ...042 EN 7017872 0609 2018 CH EN Ultrasonic Level Meter Menu Simple Setting Operation Instructions ...

Page 46: ...el calibration 7 parameter correction please do not modify this parameter 2 Sound speed correction Enter the actual value and the system will automatically perform sound speed correction which is used in places other than air For example in the case of many volatile gases such as gasoline acetone and alcohol the speed of sound propagation in these gases is different and correction is required 4 20...

Page 47: ...setting is No by default If you want to modify this item you need to record all the contents set in the following menu System reset Yes restore system settings No Exit The factory setting is No by default Please do not modify this item Factory reset Yes Restore to the state just set by the factory Can solve the problem of setting errors 2 Measurement mode After the system reset all data is restore...

Page 48: ...edium is a soft powder 5 There are extra objects in the measured space such as support rods feeding openings etc 2 The measured medium has strong disturbance severe vibration or dust 4 The probe is not aligned with the plane to be measured 6 Liquid level enters dead zone Solution Check the power cord 1 Check the power cord 2 Check the wiring and reconnect 3 Return to factory for repair 5 Reselect ...

Page 49: ...of the 4mA corresponding difference and 20mA corresponding difference in the menu are shown in the attached menu structure chart 5 Set 4mA corresponding difference and 20mA corresponding difference 4 Enter the height value of No 2 probe into Reference Zero 2 For the position of Reference Zero 2 in the menu please refer to the menu structure chart in Table 1 3 Enter the height value of No 1 probe i...

Page 50: ...hnical Indicators Dusty Normal range Special range measurement accuracy Resolution display Analog output Relay output powered by Surroundings temperature Communication Protection class Probe cable Probe installation 5 meters 10 meters 15 meters 20 meters 30 meters 40 meters 50 meters 60 meters 0 5 1 0 3mm or 0 1 whichever is greater 12864 Dot Matrix Chinese LCD Two 4 20mA 510Ω loads 4 AC 250V 8A o...

Page 51: ...Black wire GND ground wire n 1 for single probe n 1 2 for double probe For single probe n 1 2 for double probe n 1 2 3 4 Power cord AC connect L N DC 24V to 24VDC GND to 24VDC Remarks Relay 1 is used for probe 1 alarm relay 2 is used for probe 2 alarm relay 3 and relay 4 are used for difference alarm In the dual level working mode mA 1 and mA output probe 1 current mA2 and mA output probe 2 curren...

Page 52: ...rranty period The warranty period of our products is within twelve months from the acceptance date 5 Failure caused by natural factors such as lightning water fire etc Warranty Policy 1 Please show the warranty card when repairing Failures due to normal use during the warranty period can be guaranteed with the free warranty card 1 The product or other parts have exceeded the free warranty period 4...

Page 53: ...ing this vibration can be transmitted to the metal flange and then reflected back by the metal flange and stacked on the probe to form a strong Reflected signal It will appear that the water level of the pool is 1 Resonance Figure 1 Echo signal formed by resonance Figure 2 Resolved echo signal In the echo graph the closer to the left the closer to the probe s echo and the closer to the right the f...

Page 54: ... the red circle is the normal echo signal The echo caused by the blind zone is too strong in this place so the subsequent real echo signal is Concealed the measured water level data may be any value A careful friend may find that the echo entering the dead zone is a bit like the echo pattern caused by the first resonance in the article We lifted the probe up and installed it so that the distance b...

Page 55: ...e very obvious In the above picture the left picture is the original picture and the part I circled in the right picture is a large burr which is formed by electromagnetic interference There is no obvious reflected wave in the echo map There are many burrs on the entire baseline This is an electromagnetic interference In the figure the first three numbers below the baseline and the first two numbe...

Page 56: ...lects the interference waveform The ellipse selects the real echo The interference waveform is much higher than the real echo Ultrasound can not be identified Figure 9 is more interesting The oval circle is the real reflected wave and the square circle is the interference wave from the inverter Although there is interference from the inverter the reflected signal strength on the water surface is s...

Page 57: ...een the height of the nozzle and the diameter of the nozzle which is 5 3 Assuming the height is 200 mm the diameter of the If it is electromagnetic interference coming from the cable especially the most used two wire ultrasonic level gauge a passive signal isolator can be added in the middle to solve this interference Figure 11 The echo of the probe retracted into the tube In the figure above the ...

Page 58: ...WIG SCHNEIDER 德国罗德玮格仪表公司 Ludwig Schneider GmbH Co KG KGAmEichamt 4 6 97877 Wertheim 罗德玮格中国代表处罗德玮格自动化仪表广州有限公司罗德炜舸国际贸易上海有限公司电话 400 860 9760 邮箱 lw ludwig schneider com cn 网站 www Ludwig Schneider com cn ...

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