TransmissometerUser Manual
Contents
1. SEA BIRD Ss SCIENTIFIC Transmissometers150921 Transmissometers User manual 09 2015 Edition 1 Table of Contents Section T IPECHICAMONS ii ds A names dukens 3 PI O 3 1 1 1 Beam Attenuation Meter BAM mechanical uurrssnssnnnnnnnnnnnnnnnnnennnnnnnnannnnn nn 3 1 1 2 C Star mechanical EEE T ERE E E EA E AAE EATA 3 1 1 3 C Rover mechanical rrronnnonnnononovnn ovn vrnnvrnn nn nn rn rr rn 3 1 1 4 MCBH6MP Standard connector esta ia ER lan 3 A erkenne IRRE EE 4 1 3 Communication eh er sinn dedo dorada 4 1 4 Optia E a a E AAE ra Aa A AEE RA a A Ae FA a S Eaa a re Eea ra ear oar ardi 4 Section 2 Operation and maintenance rmrsnnnrnnnrnnvnrnnnrrnrnrrnnnrn vnr nnnrnnnrrnnerrnnern vern nnernnnrrnnersneennn 5 231 A utmerka A seid ata See dekte 5 2 1 1 Verify analog data output oca is 5 2 2 Verify pre deployment operation rnnnnnnnnnnnnnn nam nnnnnnnnrnnnrnnnrnnnnnnnnnnnrnnnrnnnrnnrrnnrrrnrrrnrrrnrsrnrsnnrsnnnn 5 2 3 C Star and C Rover hardware SCtup ccccccccccececeeeceeceeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeneeeneees 6 2 4 G Star Collett dala ia A ad ies 6 2 4 1 Common terminal program operationS rrrrnnnrnnnrnn nn n nn nn nn nn nn namn nn nn nn nn 7 2 5 MAINTENANCE iS da 7 AO AO AT 7 2 9 2 Clean the OPUS ciao a AA ER a Addis 7 2 5 3 Clean and lubricate bulkhead CONNECtor oocccccccccncccnncnnnnnnnnnnnnnnoninnnennninnnnnnnnnnnnninnnininnnnns 82. Section 3 Reference en eine nad 11 3 1 Calla arcanos i 11 3 2 Terminal program Operation cccccccccccccccececeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeneeeneeess 11 3 3 VSG 4 bulkhead connector cooococccoccconccnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnininnns 11 3 4 Bulkhead connector analog nee rd otto 12 E hd ane kid dad 12 3 6 Proteetive diode a ra utedass Glad irene ata 12 Section 4 Optional equipMent ooooococococcococccoocconcconoccoononon ccoo ncnnnnonnn conc nnnnnnnn cnn nernnerrnnerrnnernnnennn 13 As estarian A A A is 13 4 2 Optional equipment flow tUbe oocccccccncccncccccneninennninenennninnninennnnnnnnnnnr nn rr 13 Section 5 General informati n a AO 15 AEE EE EEE EE AN 15 5 2 Service and support iusauusdssirsmsjih insentiver 15 5 3 Waste electrical and electronic equipment rrrrrrnrrrrrrrrrrrrrrrnrrrrnrrrnrrrnrrrnrrnrrennrennsenssenssenssennn 15 Table of Contents Section 1 Specifications 1 1 Mechanical 1 1 1 Beam Attenuation Meter BAM mechanical Length 19 56 cm Height 12 45 cm Width 6 35 cm Weight in air water 3 28 kg 2 06 kg Depth rating 600 m BAM SSC 1000 m BAM Std Temperature range operation 2 38 C Temperature range storage 40 70 C Temperature stability 0 02 FS C 3 28 kg 2 06 kg Internal air volume 454 cc 1 1 2 C S
3. 5 Put a solid object near the light source of the sensor The DMM shows approximately 0 VDC 2 2 Verify pre deployment operation Make sure that the sensor collects data and operates correctly before deployment Make sure that the sensor is connected to a PC and power supply Turn on the power supply if necessary Put a finger or other solid object in front of the light source Look at the data output from the signal and the corrected signal They are at or near 0 5 Look ata clear light path to make sure that the corrected signal is within 100 counts of the clean air value on the sensor s calibration page or the previous user tracked value ANS Operation and maintenance 6 Hold a piece of tape halfway between the windows in the light path to check the mid range data output values The corrected signal shows a mid range output value approximately 7000 11000 counts Column Value Example output 1 Model Serial Number xxxxxx 0000 11829 13838 13695 0 003 527 2 Reference xxxxxx 0000 11829 13838 13695 0 003 527 3 Signal xxxxxx 0000 11829 13838 13695 0 003 527 4 Corrected signal xxxxxx 0000 11829 13838 13695 0 003 527 5 Calculated beam c m xxxxxx 0000 11829 13838 13695 0 003 527 6 Thermistor xxxxxx 0000 11829 13838 13695 0 003 527 7 Before deployment put a drop of diluted detergent on the sensor optics to help keep the optics clean when the sensor is on the water s surface Refer to Clean the opti
4. cs on page 7 for details 2 3 C Star and C Rover hardware setup Attach sensor to frame Make sure to electrically isolate the sensor from any metal The manufacturer recommends non nylon cable ties or monofilament line to attach the sensor to a lowering frame or metal cage Ifthe sensor is attached to a frame with hose clamps Use a sheet of rubber or dielectric tape to prevent metal to metal contact Use corrosion resistant 316 stainless steel or titanium clamps Make sure to attach hose clamps around the upper and lower housings on the sensor Tighten one clamp approximately a quarter turn and tighten the other Move between the two clamps to tighten each equally Do not attach the hose clamps too tightly or the optical path of the sensor may twist and the data collected may be incorrect Sensors that are depth rated to 2 000 or 6 000 m have a zinc anode installed near the bulkhead connector to protect the sensor from normal corrosion Operate the C Star with or without a pump The manufacturer recommends the SBE 5T pump which has an adjustable motor so flow rates can accurately be controlled to 20 30 ml sec to flush the flow tube Attach the optional flow tube if the sensor is operated with a pump 2 4 C Star collect data Use the terminal program commands below for sensors that have digital output Connect the sensor to a PC or data logger that can receive an RS232 signal at 19200 baud Connection to a PC or data logg
5. ed calibration page e within 100 counts of the user monitored data output values or e stable between 100 and 500 counts of the calibration page or user monitored values 1 Remove the protective cap s to clean the optical windows of the sensor 2 Mix two drops of soap with 0 2 or 0 4 um filtered distilled water in a 500 ml bottle 3 Put some soap solution on the optical window Figure 1 Soap solution on window 4 Use a lint free tissue e g Kimwipe or similar or a swab to rub the optical window to remove particles and oil Figure 2 Rub window with lint free tissue 5 Flush the soap off of the windows with filtered distilled water 6 Use compressed air to remove any particles that remain and to dry the optical window Figure 3 Dry window with compressed air 7 Wet rub flush and dry each optical window two or three times to get a stable clean air value 2 5 3 Clean and lubricate bulkhead connector Lubricate the contacts of bulkhead connectors at regular intervals with pure silicone spray only Allow the contacts to dry before they are connected Make sure that the pins have no corrosion which looks green and dull Make sure that the rubber seals on the pins are not delaminated Connectors should connect smoothly and not feel gritty or too resistant Operation and maintenance The manufacturer recommends 3M Silicone Lubricant spray UPC 021200 85822 Other silicone sprays may contain hydrocarb
6. er also lets the user save the data collected by the sensor Connect sensors that have analog output C Star to a data logger radiometer or CTD sensor that can change the analog output of the sensor to digital output A data logger will merge the CTD and sensor data and align the sensor output with depth or time output Operation and maintenance 2 4 1 Common terminal program operations Command _ Parameters Description 1m none Stops the data collected by the sensor Lets the user to enter setup values If the sensor is in a low power mode turn the power supply off for one minute then turn the power on and push the key 5 or more times ave 1 65535 The number of measurements that make up each row of collected data mnu Prints the menu of setup values to the PC screen pkt 0 65535 Sets the number of rows of data that are collected between the specified time intervals rls none Gets the settings from the flash memory run Uses the current setup values to operate sto Saves the desired setup values to the flash memory 2 5 Maintenance The sensor s signal value in air output CSC r is supplied on the calibration page The manufacturer recommends that the user use the CSC jr to monitor the sensor s basic operation find out when to clean the sensor find out when the sensor is clean The manufacturer recommends the maintenance supplies below to clean the sensor 0 2 o
7. erify sensor operation Make sure that the sensor operates before further setup and deployment Do not supply more than 15 VDC to the sensor More than 15 VDC will damage the sensor 1 Connect the connector on the optional test cable refer to the section on the Test cable on page 13 for details to the sensor 2 Remove the cap s that protect the optics of the sensor 3 Connect the battery connectors on the test cable to a regulated power supply set at 12 VDC 4 Connect the RS232 connector on the test cable to the serial port of the PC Usea serial to USB adapter if the PC has no serial port 5 Start a terminal communication program such as HyperTerminal or Tera Term Select a Bits per second 19200 b Data bits 8 c Parity none d Stop bits 1 e Flow control none Turn on the power supply 7 The sensor comes on The data output will show in the terminal program 2 1 1 Verify analog data output 1 Connect the optional test cable to the sensor Refer to the section on the test cable for details about test cables 2 Use a regulated power supply to supply 12 VDC to the sensor or connect a 9V battery to the connectors on the test cable The sensor comes on 3 Use the probes on a digital multimeter DMM to touch the RCA connector on the auxiliary leg s of the test cable 4 Put the red signal probe in the RCA connector and the black ground on the outside The DMM shows approximately 5 VDC
8. he optional test cable to set up and test the sensor before deployment 1 six contact connector 2 9 volt battery connector 3 db 9 serial port connector 4 RCA connector 1 2 3 4 Connect the six contact connector into the sensor Connect the 9 volt connector to a 9 volt battery As an alternative it can be connected to a regulated power supply Connect the db 9 connector to the host PC Use a USB to RS232 adapter cable if necessary Use the probes on a digital multimeter to see analog output from the sensor The inside of the RCA is power and the outside is ground 4 2 Optional equipment flow tube The C Star sensor has an optional flow tube for special uses Refer to the steps below to remove clean and install the flow tube 1 NO U 2 0 10 Loosen the 9 64 stainless steel cap screws in the flow sleeves It is not necessary to remove the screws Push the flow sleeves toward the middle of the flow tube Lift the flow tube from the sensor Remove the O rings from the flow tube Wash the flow tube with a mild detergent Flush the flow tube with clean water Let the flow tube dry completely Use dry nitrogen to blow dry the flow tube Make sure the size 122 O rings on the flow tube and on the optical windows are not damaged Replace them if necessary Make sure the sensor s optical windows are clean and dry Refer to the section Clean the optics on page 7 for details Use dry nit
9. i fouling treatment from the sensor before sending it back to the manufacturer Note The manufacturer will not accept sensors that have been treated with anti fouling compounds for service or repair This includes tri butyl tin marine anti fouling paint ablative coatings etc Use the sensor s original ruggedized shipping case to send the sensor back to the manufacturer Write the RMA number on the outside of the shipping case and on the packing list Use 3rd day air to ship the sensor back to the manufacturer Do not use ground shipping The manufacturer will supply all replacement parts and labor and pay to send the sensor back to the user via 3rd day air shipping 5 3 Waste electrical and electronic equipment Electrical equipment that is marked with this symbol may not be disposed of in European public disposal systems In conformity with EU Directive 2002 96 EC European electrical equipment users must return old or end of life equipment to the manufacturer for disposal at no charge to the user To recycle please contact the manufacturer for instructions on how to return end of life equipment manufacturer supplied electrical accessories and auxiliary items for proper disposal 15 General information 16 WET Labs Inc P O Box 518 O Philomath OR 97370 U S A WWW Tel 541 929 5650 Fax 541 929 5277 www wetlabs com WET Labs Inc 2013 All rights reserved Printed in U S A AA OD IA NN
10. low Analog Connector diagram Digital Contact Function socket Contact Function 1 ground O 1 ground 2 analog out 2 analog out 20 O4 3 V 3 V O 4 analog return 3 4 RS232 TX 11 Reference 3 4 Bulkhead connector analog Contact Function MCBH 6 MP Ground Reserved Reserved Voltage in Reserved OJo AJOJN Analog out 3 5 Data types Data type Description Al ASCII integer number AF ASCII floating point number AS ASCII string text Field Length bytes Data type Description Sensor 4 AS Characters at the start of a row of data Delimiter 1 AS Hyphen delimiter SN 4 Al Serial number Delimiter 1 AS Tab delimiter Ref raw 5 Al Reference raw count value Delimiter 1 AS Tab delimiter Sig raw 5 Al Signal raw count value Delimiter 1 AS Tab delimiter Corr Sig Raw 5 Al Correct signal raw count value CSCsig Delimiter 1 AS Tab delimiter c 6 AF Calculated beam attenuation coefficient in m Delimiter 1 AS Tab delimiter Therm 3 Al Internal thermistor raw count value Terminator 1 AS Line feed pair OApex end of row 3 6 Protective diode The C Rover has a protective diode to prevent damage to the power supply of the sensor up to 30 volts in case power is supplied to the incorrect polarity 12 Section4 Optional equipment 4 1 Test cable Use t
11. on solvents that damage rubber DO NOT use silicone grease DO NOT use WD 40 The wrong lubricant will cause failure of the bulkhead connector and the sensor Operation and maintenance 10 Section 3 Reference 3 1 Calibration The relation of the signal output to the calibration output is transmittance and will vary from 0 to 1 or 0 to 100 The relation of transmittance to the beam attenuation coefficient c is Tr e where Tr transmittance e e natural logarithmic base 2 71828 c beam attenuation coefficient e x sensor pathlength The manufacturer calibrates each sensor and records these values on the sensor specific calibration page The calibrated transmittance of the sensor is calculated below Tr CSCsig CSC ark CSC cal a CSC ark CSCsig the value of the output in air CSCgark the value of the output with the beam blocked CSCcaj the value of the output in the clean water used for calibration The beam attenuation coefficient is calculated below c 1 x x In Tr 1 x x In CSCgig CSC dark CSCcar CSCqark 3 2 Terminal program operation Use Windows HyperTerminal or other terminal program to operate sensors as an alternative to the host software Interface settings baud rate 19200 stop bits 1 data bits 8 flow control none parity none 3 3 VSG 4 bulkhead connector Previous sensor models use the bulkhead connector shown be
12. r 0 4 um filtered distilled and deionized water one 500 ml bottle of dilute soap such as Microclean or Dawn one 500 ml bottle for clean water lint free laboratory tissues or lens papers lint free swabs a source of compressed clean air The manufacturer recommends dry nitrogen a notebook to record maintenance dates and CSC values 2 5 1 Clean the sensor Clean the sensor after each deployment 1 2 3 4 5 Flush the sensor with clean fresh water Use soapy water to cut grease or oil on the sensor Make sure that saltwater does nat dry on the sensor Salt crystals are difficult to clean Do a final flush of the sensor with filtered distilled water Clean the optics 2 5 2 Clean the optics Record and save the data output from the sensor at regular intervals to monitor the performance of the sensor and to see if the optical windows need to be cleaned It is not necessary to clean the windows if the output of the sensor is within 100 counts of the clean air value on the sensor specific calibration page or the user tracked value Clean the windows if the output of the sensor is more than 100 counts different from the clean air value on the sensor specific calibration page or the user monitored value Operation and maintenance Do the steps below to clean the optical windows Clean the optics until the output of the sensor data output is e within 100 counts of the data output value on the manufacturer suppli
13. rogen under very low pressure on the windows immediately before the flow tube is installed again Install the flow tube on the sensor a Line up the stainless steel cap screws on the flow sleeves with the grooves in the flow tubes b Push the flow sleeves onto each end of the flow tube c Set the flow tube against the optical windows of the sensor d Push the flow sleeves out on each end of the flow tube until the outside ring on the sleeve is against the optical window e Tighten the cap screws in the flow sleeves 13 Optional equipment 14 Section 5 General information 5 1 Warranty Revised editions of this user manual are on the manufacturer s website This sensor is warranted against defects in materials and workmanship for one year from the date of purchase The warranty is void if the manufacturer finds the sensor was abused or neglected beyond the normal wear and tear of deployment 5 2 Service and support The manufacturer recommends that sensors be sent back to the factory annually to be cleaned calibrated and for standard maintenance Refer to the website for FAQs and technical notes or contact the manufacturer for support at support wetlabs com Do the steps below to send a sensor back to the manufacturer 1 2 Contact the manufacturer for a Return Merchandise Authorization RMA Note The manufacturer is not responsible for damage to the sensor during return shipment Remove all ant
14. tar mechanical Dimensions 25 cm pathlength 9 3 x 6 4 x 47 cm 10 cm pathlength 9 3 x 6 4 x 29 2 cm Depth rating 600 m 6000 m Temperature range 0 30 C Weight in air 25 cm pathlength 2 2 kg 3 6 kg aluminum 10 cm pathlength 1 8 kg 1 1 3 C Rover mechanical Diameter 10 1 cm Length 78 3 cm Depth rating 2000 m Temperature range operation 2 40 C Temperature range storage 20 50 C Weight in air water 4 11 kg 0 028 kg Displacement 4546 ml 1 1 4 MCBH6MP standard connector Contact Function MCBH 6 MP 1 Ground RS232 RX Reserved Voltage in RS232 TX OJo BR wl ry Reserved Specifications 1 2 Electrical Long term stability Input 7 15 VDC Current draw 35 mA Linearity 99 0 02 FS hour 6 hours Short term noise 0 027 FS Std dev over 1 minute 1 3 Communication Sample rate 1 Hz default to 8 Hz RS232 output rate 19200 baud default range 2400 115200 C Star only Data resolution 14 bit Digital output maximum 16380 counts Analog output maximum 5V 1 4 Optical Wavelengths 470 nm 532 nm 650 nm Optical pathlength 10 cm 25 cm C Star C Rover Acceptance angle 1 Bandwidth FWHM 20 nm Precision 0 003 m1 1 Hz Section 2 Operation and maintenance 2 1 V
Download Pdf Manuals
Related Search