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Wet Labs ECO VSF, User Manual

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ECO  

VSF User’s Guide (VSF)    

Revision AN 

 

14 Sept. 2011   

 
 

 
 
 

 
 
 
 

ECO

 VSF 

Volume Scattering Function Meter 

 

 

User’s Guide 

 
 

The user’s guide is an evolving document. If you find sections that are unclear, or 
missing information, please let us know. Check our website periodically for updates. 

 
 
 

WET Labs, Inc. 
P.O. Box 518 
Philomath, OR 97370 
541-929-5650 
fax: 541-929-5277 
www.wetlabs.com

Summary of Contents for ECO VSF

Page 1: ...ction Meter User s Guide The user s guide is an evolving document If you find sections that are unclear or missing information please let us know Check our website periodically for updates WET Labs In...

Page 2: ......

Page 3: ...l We design the shipping container to meet stringent shipping and insurance requirements and to keep your meter functional 2 Clearly mark the RMA number on the outside of your shipping container and o...

Page 4: ......

Page 5: ...Removing End Flange and Batteries 12 4 2 Replacing End Flange and Batteries 13 4 3 Checking Vent Plug Changing O Rings 14 5 Data Analysis 15 5 1 Data Corrections 15 5 2 Determining other Angle Specif...

Page 6: ......

Page 7: ...ti fouling bio wiper N Y N Y Bio wiper cycle 140 mA Optical Wavelength 470 532 or 650 nm Sensitivity 0 003 m 1 Range typical 0 5 m 1 Linearity 99 R 2 VSF RT Provides an RS 232 serial output with 4000...

Page 8: ...3 or the ECO meter will be damaged Input power of 7 15 volts DC is applied to pin 4 The power supply current returns through the common ground pin The input power signal has a bi directional filter T...

Page 9: ...F VSFS stainless steel mounting bracket and hardware See Appendix A for details One 3 32 in hex key for bio wiper removal Three 4 40 x 3 8 in 316 stainless steel replacement screws for bio wiper Inter...

Page 10: ...te WARNING Do NOT rotate the Bio wiper manually This can damage the wiper motor and will void the warranty 1 3 4 Batteries ECO units with internal batteries are supplied with six 9 volt Lithium batter...

Page 11: ...provides a buffer between the pressure transducer and seawater The transducer is both sensitive and delicate Following the procedures below will ensure the best results and longest life from your pres...

Page 12: ...ransmitters that couple to a single receiver The transmitters and receiver are located to establish centroid light scattering angles of approximately 100 125 and 150 degrees respectively For each angl...

Page 13: ...provide power to the LEDs and electronics Connect the DB 9 connector to a computer with the ECOView host program installed on it WARNING Always use a regulated power supply to provide power to ECO se...

Page 14: ...When the meter wakes up the optical surface is exposed by the bio wiper s counter clockwise rotation WARNING Do NOT rotate the Bio wiper manually This voids the warranty If power is shut off in mid cy...

Page 15: ...late need to be removed from the meter for thorough cleaning to maximize anti fouling capability 1 Be sure the meter is NOT powered or connected to a power source prior to uninstalling the bio wiper a...

Page 16: ...bio wiper to the shaft a hex key must fit snugly into the screw socket If the socket is in any way compromised use a new screw 4 40 x 3 8 in 316 stainless steel treated with anti seize These are ship...

Page 17: ...sive power 12 Use the 3 32 in hex key to tighten the screw to finger tight then snug an additional quarter turn 13 Run the instrument to verify operation The bio wiper must rotate 180 degrees to clear...

Page 18: ...l pressure as a result of flooding WET Labs Inc disclaims all product liability from the use or servicing of this equipment WET Labs Inc has no way of controlling the use of this equipment or of choos...

Page 19: ...d plate when they are secure This will ensure the pack is straight and will fit into the pressure housing with no difficulty 1 Re install the black plastic protective covers on the ends of the screws...

Page 20: ...ved pull vent plug from end flange 2 Pinch bottom O ring around vent plug to form a small gap you can work a toothpick into Use the toothpick to help roll the bottom O ring off the plug 3 Perform the...

Page 21: ...red light This is typically a function of the propagation distances of the light as well as the magnitude of the water attenuation Because the ECO VSF incorporates very short pathlengths and scatterin...

Page 22: ...ients Other angular scattering coefficients can be determined through interpolation between the measured angles At this time WET Labs offers no preference in the type of curve fit to use for deriving...

Page 23: ...ards 6 1 4 Electronic Stability This value is computed by collecting a sample once every 5 seconds for twelve hours or more After the data is collected the standard deviation of this set is calculated...

Page 24: ...z at x y z was determined by simple geometry It was then determined whether the V was in the intersection of the source beam and the field of view of the detector both conical shapes The intersection...

Page 25: ...and calculate their scattering response using the derived weighting functions 3 Determination of angular coefficients through direct measurement of spherical beads Once the weighting functions are det...

Page 26: ...veral seconds If this does not wake the meter refer to the ECOView user s guide Operation Tip to wake a meter in a low power sleep state to enable inputting setup parameters ave single number 1 to 655...

Page 27: ...COView plots 8 2 Column Count Specification The Column Count Specification identifies how many columns of data to expect It follows the format Column n The Column Count Specification must be present b...

Page 28: ...ht columns describe 1 Date MM DD YY 2 Time HH MM SS 3 Not used 4 100 degree angle output signal 5 125 degree angle output signal 6 150 degree angle output signal 7 Thermistor Date Time Therm 9 17 2003...

Page 29: ...ECO VSF User s Guide VSF Revision AN 14 Sept 2011 23 Appendix A Mounting Bracket Drawing...

Page 30: ...pportunity to work with our customers and the EU to reduce the environmental impact resulting from the continuous improvement of our products WEEE Return Process To meet the requirements of the WEEE D...

Page 31: ...280 H Van Zee T 4 14 03 Add stop command to terminal communications DCR 292 W Strubhar T1 10 30 03 Delete references to ECO Host update to round board specs draft H Van Zee U 11 24 03 Delete referenc...

Page 32: ...ark counts derivation to reflect current production methodology DCR 600 A Barnard M Johnson H Van Zee AL 9 8 08 Change reference column to N U M Johnson H Van Zee AM 9 21 10 Change LED from 660 to 650...

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