Precision Measurement Engineering, Inc.
Precision Measurement Engineering, Inc.
The SCAMP fluorometer must be carefully assembled prior to field use. This section describes how to perform the assembly. Assembling a fluorometer version of SCAMP is very similar to assembling the standard SCAMP. The description below shows the procedure for upward mode. The other modes require only slight changes.
This photo shows the items to be assembled. |
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| Begin
the assembly by first sliding the 5151 float retainer ring over the sensor cover and down
onto the SCAMP body. Place the retrieval line loop over the sensor cover and onto the SCAMP body. Place all floats over the sensor cover and onto the SCAMP body. |
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| Next, carefully remove the sensor cover. Do this in a sitting position with the SCAMP rotated so that the Accurate CT sensor is either on the right or left side. Do this so that the relative slant of the sensor cover as it comes off the retaining threads is visible relative to the Accurate CT sensor. Since the Accurate CT sensor is the farthest sensor from SCAMP's center it is the most likely sensor to be damaged when removing the sensor cover. The picture shows the proper hand position. |
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| Next, install the sensor guard. This is screwed onto the same threads that retain the sensor cover. |
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| After the sensor guard is installed, next install the fluorometer inlet and exhaust elbows. Note that these must not be screwed deeply into the fluorometer ports. If screwed too deeply, then they will push the fluorometer sample tube towards the other side and may cause the o-ring seal to fail. The elbows provided with SCAMP have white plastic collars that will stop the elbow at a safe depth. Note that the elbows need not be tight in the ports. There may be a slight water leakage through the threaded region, but it will be very small compared to the normal flow through the elbow. The picture shows the elbows being installed. |
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| Next, install the fluorometer exit tube. This long black tube is first placed through the holes drilled in the floats. Be careful when sliding it through the holes that it does not come into contact with the sensors. Watch out for fingers at this time also. |  |
| Place the fluorometer exit tube over the exhaust elbow. Slide the floats upward until they contact the bottom edge of the sensor guard. Move the retrieval line loop up against the floats and secure them all in place with the float retainer ring. |
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| Now attach the drag plate. The SCAMP must be rotated so that the fluorometer exit tube passes through the relief in the drag plate and passes into the gray cylinder glued just below the drag plate. The picture below shows the drag plate installation. The red-capped sensor attached to the drag plate is the PAR sensor. |
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| The pin on the retrieval line is passed through the hole in the drag plate arms to secure the drag plate in the open position. When SCAMP is retrieved after a profile, this pin will pull allowing the drag plate to fold up for easier retrieval. |
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Disassembly of SCAMP after use is simply the reverse of the above
procedure. When disassembled, cover the fluorometer ports with
electrical tape to prevent dust and particles from entering. Clean the
fluorometer tube occasionally with a q-tip and alcohol.
