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Table 5-1: Summary of the terminal mode commands available

Command

Parameter/

parameter block

Description

ALARMS

Angle

Angle is the threshold tilt angle of the sensor beyond
which an alarm will be flagged. The settable range is 0
to 90.0 degrees tilt and the default is 45.0 degrees.

APPLICATION

Application_n

selects pre-configured user

settings optimized for a specific application. For the
following values of n:

0 = Help

10 = Aviation

20 = Research

40 = Meteorology

225 = User defaults

The default application for the SkyVUE 8 is 10,
Aviation. Settings adjusted by the

APPLICATION

command include settings in

MCFG

, and

UNITS

(see

Measurement
and message
intervals

(p. 43)

for more
information on
compatibility of
different
parameters)

Attenuated_
SCALE

BS_Av_Time

Noise_Gate

Measurement_
Period

Rolling_

Average

Message_
Interval

BS_Temporal_
Filter_Mode

Rules for

command are:

BS_Av_Time <= Measurement_Period-1s

Message_Interval

must be a multiple of

Measurement_Period

Attenuated_SCALE

is the scalar for the attenuated

backscatter percent. 0.001 to 1000% (default 100%)

BS_Av_Time

is the backscatter average time in

seconds. 1 to 30 (default 7).

Note: Must not be greater than

Measurement_

Period

– 1.0

Noise_Gate

controls the noise threshold applied to

back-scatter.

Noise_Gate

= -1000, all backscatter range is

corrected.

Noise_Gate

= 0.0 to 1000.0, standard deviation

SkyVUE™8 (CS136) LIDAR Ceilometer

Содержание SkyVUE 8

Страница 2: ......

Страница 3: ...under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repairs can be give...

Страница 4: ......

Страница 5: ...ycling Any batteries contained within the product or used during the products life should be removed from the product and also be sent to an appropriate recycling facility Campbell Scientific Ltd can...

Страница 6: ......

Страница 7: ...beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit cl...

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Страница 9: ...ring 8 2 4 Specifications 9 2 4 1 Measurement specifications 9 2 4 2 Mechanical specifications 9 2 4 3 Electrical specifications 10 2 4 4 Optical specifications 12 2 4 5 Environmental specifications 1...

Страница 10: ...1 8 Message polling 54 5 1 9 Loading a new operating system OS 55 5 1 10 Stratocumulus backscatter calibration 56 5 1 11 CRC 16 codes on terminal commands 58 5 1 12 Service command 58 5 1 13 Locked fe...

Страница 11: ...ion 96 Appendix D Replacing the SkyVUE 8 PSU 98 Appendix E SkyVUE 8 Laser APD module replacement 100 List of figures FIGURE 1 1 Location of laser warning label 4 FIGURE 2 1 Principle of operation 8 FI...

Страница 12: ...ns and applied settings for SkyVUE 8 41 Table 5 3 Summary of message ID and descriptions 43 Table 6 1 Most significant alarm word for CS messages 64 Table 6 2 Middle alarm word for CS messages 65 Tabl...

Страница 13: ...le 1 Bolt sleeve anchor 4 Cable USB type A plug to type B plug 2 m 1 Triangle key 1 Calibration plate 1 1 2 General safety This manual provides important safety considerations for the installation ope...

Страница 14: ...WARNING Do not attempt to repair the SkyVUE 8 unit without consulting Campbell Scientific CAUTION Ensure that the correct voltage supply is provided to the sensor 1 4 Laser safety The SkyVUE 8 sensor...

Страница 15: ...user to hazardous class 3B laser radiation No attempt should be made to operate the laser module outside of the housing WARNING Annually check that the laser warning label on the sensor is still visi...

Страница 16: ...el qualified to install electrical equipment For permanent outside installations this usually requires a certified electrician who is also familiar with local electrical and safety legislation Some ge...

Страница 17: ...an isolator switch is fitted this shall be a two pole isolator located as near to the sensor as possible The SkyVUE 8 must be properly grounded by a licensed and qualified electrician to protect again...

Страница 18: ...ibration circuitry and dirty windows system PSU Power Supply Unit controls the power supply including battery charging and deep discharge protection The SkyVUE 8 has a rugged environmental enclosure t...

Страница 19: ...ta messages give the two way attenuated backscatter profile This consists of 2048 groups of five character values 10 240 characters in total Each character is 4 bits long and therefore each 5 figure g...

Страница 20: ...o lens or common optics designs The optical isolation of traditional biaxial systems is maintained to increase detector sensitivity while the low overlap onset height of common optics systems is incor...

Страница 21: ...aximum reporting range 8 km 26 250 ft Minimum reporting resolution 5 m 15 ft Hard target range accuracy 0 25 4 6 m 15 ft Reporting cycle 2 to 600 s Cloud layers reported Up to four layers reported ins...

Страница 22: ...0 VDC input 1 A at 12 VDC 0 5 A at 24 VDC 12V OUT 12 VDC 1 7 A for optional or external equipment if the SkyVUE 8 is using a DC supply this must be greater than 14 VDC for this to be available Heater...

Страница 23: ...ry Internal 12 V 7 Ah sealed lead acid battery The power supply is equipped with a system to prevent deep discharge of the battery The heaters are resistive which is advantageous when connected to gen...

Страница 24: ...e 20 to 50 C alternative battery types available Relative humidity range 0 to 100 IP rating IP 66 Maximum wind speed 55 m s 2 4 6 Communications specifications Supported serial settings 8 bits no pari...

Страница 25: ...V RS 485 422 output unloaded 5V RS 485 422 output load 50 2 V Maximum voltage at any terminal 7 V 7 V USB Service Port USB1 1 and 2 0 compatible fixed 115200 baud 2 4 7 Compliance and testing NOTE Fu...

Страница 26: ...he port setting in the terminal emulator program Older computer operating systems may need upgrading or additional software The SkyVUE 8 will output message type 004 default every 30 seconds see CS me...

Страница 27: ...ontamination More regular maintenance will be required when the instrument is placed in areas where contamination is unavoidable or where measurements may be safety related Take care that the orientat...

Страница 28: ...a depth of 77 mm 3 03 in 2 Clean the holes of all debris 3 Place washers and nuts on the ends of the wedge anchors supplied to protect the threads during installation 4 Hammer the wedge anchors into t...

Страница 29: ...4 2 p 17 move the SkyVUE 8 to the required tilt angle and replace the bolts The SkyVUE 8 has tilt sensors in both axes to compensate the cloud height when the base is not level Set or disable cloud he...

Страница 30: ...ations another connector 4 pins provides power to the unit NOTE Tilting the unit provides better access to these connectors FIGURE 4 3 Connector layout The function of the connector pins is shown in T...

Страница 31: ...the communications connector Pin on connector on SkyVUE 8 Colour of supplied cable cores 9 pin D connector RS 232 RS 485 half duplex RS 485 full duplex RS 422 1 Red 8 B D Y TXD non inverting 2 Yellow...

Страница 32: ...needs fuses with ratings of 5 A or larger and a slow blow design Cable extensions or replacement cables should be capable of carrying current in excess of that fuse rating Include a two pole isolator...

Страница 33: ...he connector can easily be removed for direct connection to screw terminals See www campbellsci eu downloads skyvue example programs for CRBasic programs that connect the SkyVUE 8 to a Campbell Scient...

Страница 34: ...ting the back up battery The SkyVUE 8 is shipped with the back up battery disconnected and includes desiccant used for transport Before using the unit open the door connect the internal battery FIGURE...

Страница 35: ...pikes remove the cowl and blanking plugs from the cowl FIGURE 4 8 p 23 If the SkyVUE 8 is an older unit without pre existing holes then drill four holes each 4 5 mm 0 17 in diameter evenly spaced arou...

Страница 36: ...to reduce the possibility of water drops being collected Check the wire during maintenance and replace if necessary 4 8 Storage information Store the SkyVUE 8 in a dry place at 40 to 70 C preferably w...

Страница 37: ...1 Terminal mode 5 1 1 Entering exiting the SkyVUE 8 terminal mode 26 5 1 2 Terminal mode commands general 26 5 1 3 Terminal mode command examples 27 5 1 4 Application command message types 41 5 1 5 MC...

Страница 38: ...he open command with the password Secret OPEN 0 Secret 5 1 2 Terminal mode commands general Table 5 1 p 28 provides a summary of the terminal mode commands To send commands that setup and control the...

Страница 39: ...uld also type the following to obtain the same results as the RS 485 turn around delay is not needed serial 0 10 0 To change only the data baud rate you can replace mode parameter with a comma as show...

Страница 40: ...ude settings in BS MCFG and UNITS BS see Measurement and message intervals p 43 for more information on compatibility of different parameters Attenuated_ SCALE BS_Av_Time Noise_Gate Measurement_ Perio...

Страница 41: ...for higher layers Note Must be a sub multiple of Message_ Interval Rolling_Average 1 to 29 default 3 This is the number of measurement_periods to use in a rolling average of the backscatter Message_In...

Страница 42: ...ser volVer user volume version OS_VER DSP OS version PsuOsVer PSU OS version TopOsVer TOP OS version Id SkyVUE 8 ID Pw SkyVUE 8 password terminalCrc terminal crc mode terminalTimeout terminal timeout...

Страница 43: ...metres bsAvTime backscatter average time in seconds laserMode laser operation mode laserPower laser power laserHeater laser heater mode attenuatedSCALE attenuated backscatter scaling factor logInterv...

Страница 44: ...tiltLimit tilt limit in degrees used by alarms noiseGate attenuated backscatter noise gate mode vvLimit_percent sky condition report vertical visibility alphaGuessStart cloud detection alpha guess at...

Страница 45: ...5 000E 00 1 000E 01 150 98b2 TO START OF THIS LINE HEATERS Hood Internal Laser Test_interval Sets or reads heater settings as follows Hood 0 Hood blower and heater OFF Hood 1 Hood blower ON and heate...

Страница 46: ...nsor is instructed to turn the laser back on LASERON No parameters Instructs the SkyVUE 8 to try and turn the laser on LOADOS Module Loads new operating system This command must be sent using XMODEM p...

Страница 47: ...rom Sensor_ID Refer to Message polling p 54 for more information on this command Note If Message_ID is omitted the SkyVUE 8 outputs the message configured by MCFG POWEROFF No parameters Prepares the P...

Страница 48: ...t or read the serial port Mode 0 RS 232 full duplex default Mode 1 RS 232 half duplex Mode 2 RS 485 full duplex Mode 3 RS 485 half duplex Mode 4 reserved Mode 5 RS 422 full duplex Baud 0 300 baud Baud...

Страница 49: ...volume version not changed OS_VER DSP OS version not changed PsuOsVer PSU OS version not changed TopOsVer TOP OS version not changed Id SkyVUE 8 ID not changed Pw SkyVUE 8 password not changed termin...

Страница 50: ...ghtOffset height offset metres bsAvTime backscatter average time in seconds laserMode laser operation mode laserPower laser power laserHeater laser heater mode attenuatedSCALE attenuated backscatter s...

Страница 51: ...lpha minimum cap visibility cap in metres tiltLimit tilt limit in degrees used by alarms noiseGate attenuated backscatter noise gate mode vvLimit_percent sky condition report vertical visibility alpha...

Страница 52: ...this command TERMINAL Terminal Timeout Sets the user terminal time out Timeout is the delay in minutes from 1 to 15 where the terminal will automatically close if no characters are sent to the SkyVUE...

Страница 53: ...drops to an average of approximately 40 C ready to be activated again 5 1 4 Application command message types The Application_n parameter for the APPLICATION command defines settings to optimize the c...

Страница 54: ...n Backscatter temperal filter rolling samples 3 6 3 3 BS Message Interval s 30 30 30 30 BS BS_Temporal_ Filter_Mode Sets Averaging or Median Mode 1 Median 0 Average 0 Average N A Average CLOUDMODE Clo...

Страница 55: ...on 105 CL31 Message 1 No profile data 106 CL31 Message 1 Full SkyVUE 8 output 1600 range bins 5 m resolution 107 CL31 Message 2 770 range bins 10 m resolution 108 CL31 Message 2 385 range bins 20 m re...

Страница 56: ...s as follows If message interval measurement period 2 the lowest values allowed then the backscatter average time BS_Av_Time must equal 1 and the rolling average must equal 1 If the message interval i...

Страница 57: ...he average of the latest three measurements Therefore each message is based on three 10 second measurement periods with each containing 2 seconds of backscatter average data Laser firing yellow BS_AV_...

Страница 58: ...ame SN1000 Sensor serial number ID 0 Sensor identification number Line Example line output 2 Date Time 2012 01 10 11 39 46 Description of the line sections Section Description 2012 01 10 Date in the f...

Страница 59: ...e output 6 Watchdog A Description of the line sections Section Description A Watchdog counter for unscheduled system resets Line Example line output 7 Serial A B C D Description of the line sections S...

Страница 60: ...ion Description X Message interval Note Refer to the MCFG command A Message ID A Note Refer to the MCFG command B Message ID B Note Refer to the MCFG command C Message ID C Note Refer to the MCFG comm...

Страница 61: ...e C Sensors internal dew point value in degrees Celsius Line Example line output 13 T A B C D E F G Description of the line sections Section Description A External fan blower assembly temperature in d...

Страница 62: ...after 31 cycles D Hood heater voltage E Internal heater voltage Line Example line output 15 HOffset A Description of the line sections Section Description A Height offset reported in feet or metres d...

Страница 63: ...line output 18 WindowTX A Description of the line sections Section Description A Window transmittance Line Example line output 19 BS A B C D E F Note refer to the BS command Description of the line se...

Страница 64: ...XXX Laser shut down due to operating temperature out of range 0200 XXXX XXXX The lead acid battery voltage is reading low 0100 XXXX XXXX Mains supply has failed requires a PSU to be present 0080 XXXX...

Страница 65: ...00 XXXX DSP factory calibration stored in flash has failed its signature check XXXX 0100 XXXX DSP board OS signature test failed XXXX 0080 XXXX DSP board RAM test failed XXXX 0040 XXXX DSP boards on b...

Страница 66: ...XXXX XXXX 0040 Laser did not achieve significant output power XXXX XXXX 0020 Laser max power exceeded XXXX XXXX 0010 Laser max drive current exceeded XXXX XXXX 0008 Laser power monitor temperature ou...

Страница 67: ...In this example only default message output was set Therefore the POLL command returns text similar to the following NOTE If you have no message configured the MCFG command returns 0 0 0 0 0 then noth...

Страница 68: ...e operation according to the previously set operating parameters It will no longer be in terminal mode 5 1 10 Stratocumulus backscatter calibration The SCCAL command allows a simple stratocumulus back...

Страница 69: ...or N To confirm type Y and the SkyVUE 8 will respond Old Stratocumulus calibration 0 0282 New Stratocumulus calibration parameters 0 0258 70 1328 Do you want to apply this calibration Y or N In this e...

Страница 70: ...ftware sends CR and not CRLF for the command line termination The table below gives some commonly used CRC 16 codes Terminal command CRC 16 open 0 233A close D94E status 7CE5 password EB85 terminal 0...

Страница 71: ...surement Place white test surface onto detector window left side fan at the top Press Enter to continue Cover the detector window and press Enter The computer will respond wait for new measurement Pla...

Страница 72: ...t open the access door WARNING Opening the access door MUST be carried out by a competent person who has sufficient training experience and knowledge both in electrical safety and the detail and opera...

Страница 73: ...the window see FIGURE 5 2 p 61 It will give 0 5 second flashes as follows Permanently on top board firmware fault 1 flash every 10 seconds OK no fault 2 flashes every 10 seconds warning possible degr...

Страница 74: ...ensors allowing easier replacement or network expansion 6 2 Checksums used in SkyVUE 8 messages This is based on the CRC 16 with the output XOR d with Hex 0xFFFF and outputs a two byte CRC 16 characte...

Страница 75: ...9 800000000000 942f LINE 1 SOH CS ID OS N STX CR LF where SOH Start of Heading character CS Always CS ID 1 character A single character 0 to 9 a to z or A to Z case sensitive Default ID 0 OS 3 charact...

Страница 76: ...tion status is 5 h1 Vertical visibility as calculated If detection status is 0 or 6 h1 h2 5 characters 2nd Height If detection status is 2 3 or 4 h2 Second cloud base reported If detection status is 5...

Страница 77: ...X PSU OS has failed its signature check 0008 XXXX XXXX No communications between DSP and PSU 0004 XXXX XXXX Photo diode and Laser windows are dirty This can only be set if the laser is on 0002 XXXX XX...

Страница 78: ...round radiance is out of range 1 Alarm words are sum of error bits Table 6 3 Least significant alarm word for CS messages Bit1 Description XXXX XXXX 8000 Photo diode temperature is out of range XXXX X...

Страница 79: ...Text character CRC 16 4 characters CRC 16 Checksum EOT End of Transmission character CRLF Carriage Return Line Feed 6 3 2 MESSAGE 002 Profile no sky condition Example message line outputs CS0001002 1...

Страница 80: ...alarm or warning W Warning A Alarm tr 3 characters Window transmission h1 5 characters 1st Height If detection status is 1 2 3 or 4 h1 Lowest cloud base reported If detection status is 5 h1 Vertical v...

Страница 81: ...illivolts at internal ADC input 0 to 2500 pulse 4 characters Pulse quantity x 1000 0000 to 9999 rate 2 characters Sample rate MHz 00 to 99 sum 3 characters Sum of detected and normalized backscatter 0...

Страница 82: ...stem 001 to 999 N 3 characters Message number STX Start of Text Character CR LF Carriage Return Line Feed LINE 2 S WAVtrVh1Vh2Vh3Vh4Vflags CR LF where S 1 character detection status 0 No significant b...

Страница 83: ...Third cloud base reported If detection status is 0 1 2 5 or 6 h3 h4 5 characters 4th Height If detection status is 4 h4 Fourth cloud base reported If detection status is 0 1 2 3 or 5 h4 flags 12 chara...

Страница 84: ...ayer in oktas h5 4 characters Height of the 5th cloud layer in 10 s of metres or 100 s of feet if no 5th layer is reported h5 CR LF Carriage Return Line Feed NOTE Cloud amounts and heights cannot be r...

Страница 85: ...One cloud base detected 2 Two cloud bases detected 3 Three cloud bases detected 4 Four cloud bases detected 5 Full obscuration determined but no cloud base detected 6 Some obscuration detected but det...

Страница 86: ...paces where d 2 characters Data available _0 to _8 Amount of lowest layer in oktas _9 Vertical visibility only available 1 No sky condition data available 99 Insufficient data h1 4 characters Height o...

Страница 87: ...ading Laser temperature degrees C ti 2 characters Total tilt angle degrees bl 4 characters Background light millivolts at internal ADC input 0 to 2500 pulse 4 characters Pulse quantity x 1000 0000 to...

Страница 88: ...F where SOH Start of Heading character CL Always CL ID A single character 0 to 9 a to z or A to Z case sensitive Default ID 0 OS Operating system 100 to 999 1 Always 1 Samples backscatter resolution a...

Страница 89: ...tart of Text Character CR LF Carriage Return Line Feed LINE 2 S WAVtrVh1Vh2Vh3Vh4Vflags where S 1 character detection status 0 No significant backscatter 1 One cloud base detected 2 Two cloud bases de...

Страница 90: ...st significant alarm word for CS31 messages Bit1 Description 8000 XXXX XXXX Transmitter shut off 4000 XXXX XXXX Transmitter failure 2000 XXXX XXXX Receiver failure 1000 XXXX XXXX Reserved for future u...

Страница 91: ...XXX 0020 XXXX Ceilometer engine board failure XXXX 0010 XXXX Reserved for future use XXXX 0008 XXXX Laser monitor failure XXXX 0004 XXXX Receiver warning XXXX 0002 XXXX Tilt beyond limit set by user d...

Страница 92: ...F Carriage Return Line Feed LINE 3 scaleVresVnV energyVltVtrVti_blVL0112HN15Vsum CR LF where scale 5 characters Scale parameter 0 to 99999 100 is typical res 2 characters Backscatter profile resolutio...

Страница 93: ...racter CRC 16 4 characters CRC 16 Checksum EOT End of Transmission character CR LF Carriage Return Line Feed 6 4 3 MESSAGES 107 112 CL31 Message 2 Example message 107 line outputs CL017021 10 01407 00...

Страница 94: ...ignificant backscatter 1 One cloud base detected 2 Two cloud bases detected 3 Three cloud bases detected 4 Full obscuration determined but no cloud base detected 5 Some obscuration detected but determ...

Страница 95: ...oktas h2h2h2 3 characters Height of the 2nd cloud layer in 10 s of metres or 100 s of feet if no 2nd layer is reported h2h2h2 d3 1 character Cloud amount of the 3rd layer in oktas h3h3h3 3 characters...

Страница 96: ...internal ADC input 0 to 2500 L0112HN15 9 characters Reserved defaults shown sum 3 characters Sum of detected and normalized backscatter 0 to 999 Not used in Operating System 1 CR LF Carriage Return L...

Страница 97: ...of Text Character CR LF Carriage Return Line Feed LINE 2 S WAVh1Vh2Vh3Vflags CR LF where S 1 character detection status 0 No significant backscatter 1 One cloud base detected 2 Two cloud bases detecte...

Страница 98: ...d Table 6 7 Most significant alarm word for CT25K messages Bit1 Description 8000 XXXX Transmitter shut off 4000 XXXX Transmitter failure 2000 XXXX Receiver failure 1000 XXXX DSP voltage or memory fail...

Страница 99: ...Units metres if on feet if off XXXX 0080 Polling mode on XXXX 0040 Working from battery XXXX 0020 Always 0 XXXX 0010 Always 0 XXXX 0008 Tilt beyond limit set by user default 45 degrees XXXX 0004 High...

Страница 100: ...Character CR LF Carriage Return Line Feed LINE 2 S WAVh1Vh2Vh3Vflags CR LF where S 1 character detection status 0 No significant backscatter 1 One cloud base detected 2 Two cloud bases detected 3 Thre...

Страница 101: ..._d3_h3h3h3__d4_h4h4h4 CR LF note spaces where d 1 character Data available 0 to 8 Amount of lowest layer in oktas 9 Vertical visibility only available 1 No sky condition data available 99 Insufficient...

Страница 102: ...are indicated by error messages 7 2 Cleaning The SkyVUE 8 window will require cleaning from time to time The frequency of required cleaning depends on the exposure of the instrument to contaminants s...

Страница 103: ...some types of contaminants scratching the window surface Over time such scratches can lead to reduced sensitivity 7 3 Diagnostic LED indicators within the enclosure The LASER ON and STATUS green LEDs...

Страница 104: ...Laser on 7 4 Electrical safety testing NOTE If carrying out insulation tests do not use test voltages above 300 V RMS because the sensor is designed to clamp any mains input voltages above this level...

Страница 105: ...the backscatter calibration constants l Remove the laser and electronic artefact signature This is specific to the individual SkyVUE 8 and determined during calibration A 2 Backscatter onset height d...

Страница 106: ...not tilt corrected l Smooth with a 20 m 65 6 ft width running average l A noise gate can be applied based on a multiple of the 20 m 65 6 ft detection threshold this is customer configurable l The low...

Страница 107: ...alls below an average of 4800 m 15 748 ft over 300 m 984 ft starting at an altitude of 1000 m 3280 ft To report a cloud layer above a lower one the scatter coefficient first has to fall below the exti...

Страница 108: ......

Страница 109: ...f the hits in the latest 10 minutes are vertical visibility then the vertical visibility averaged over the last 10 minutes is reported Only hits below the vertical visibility height limit set are used...

Страница 110: ...eight 8000 ft 300 m 1000 ft Height 2400 m 8000 ft 480 m 1600 ft Weights per layer are used to calculate number of oktas per layer If the total possible is Wmax then the cover is Wi Wmax x 8 Cloud amou...

Страница 111: ...the chassis plate that are on the bent up tabs on the left and right hand sides 4 Pull the PSU forward removing the PSU and battery carrier 5 Loosen the four screws holding the PSU in place and slide...

Страница 112: ...SkyVUE 8 CS136 LIDAR Ceilometer 99...

Страница 113: ...Supply Unit PSU including the battery NOTE It is very important to disconnect the battery from the SkyVUE 8 to ensure that the laser is not powered 4 Unscrew the two securing screws from the PSU chass...

Страница 114: ...ws WARNING Do not replace screws with different length screws 8 Remove any protective film from the filters of the new APD and laser modules before mounting them 9 Once the screws have been removed pu...

Страница 115: ......

Страница 116: ...nfo campbellsci fr www campbellsci fr Germany Location Phone Email Website Bremen Germany 49 0 421 460974 0 info campbellsci de www campbellsci de India Location Phone Email Website New Delhi DL India...

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