Boston Creek Site - Revision history

imported>Bob at 22:00, 10 September 2007

2007-09-10T22:00:40Z

imported>Bob at 21:51, 10 September 2007

2007-09-10T21:51:19Z

137.229.92.253 at 20:07, 10 September 2007

2007-09-10T20:07:33Z

New page

===Overview===
The Boston Creek station was established in 2005 after the large, intense fires of 2004.

===Station Installation===
Install in the spring like early May.

===Station Removal===
To remove the station use the following instructions:
1)

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 Install in the spring like early May.
-) Walk in to the station area.
+# Walk in to the station area.
+# drop the pressure transducer and autosampler tube into the water.  You can secure them in-situ using cable ties.  There is some rebar out there that the transducer can be attached to which will keep it from moving around in the streambed after installation.
-) drop the pressure transducer and autosampler tube into the water.  You can secure them in-situ using cable ties.  There is some rebar out there that the transducer can be attached to which will keep it from moving around in the streambed after installation.
+# The data logger and battery should be placed in a large cooler.  Take care that the data logger is positioned off the floor of the cooler so that when rain water enters the cooler the standing water doesn't reach the data logger.  The data logger isn't waterproof and will be permanently broken if it gets wet (A few raindrops won't kill it but with it powered by electricity and not waterproof there could be problems if water accumulates).
+# Record the flow.
-) The data logger and battery should be placed in a large cooler.  Take care that the data logger is positioned off the floor of the cooler so that when rain water enters the cooler the standing water doesn't reach the data logger.  The data logger isn't waterproof and will be permanently broken if it gets wet (A few raindrops won't kill it but with it powered by electricity and not waterproof there could be problems if water accumulates).
+===Summer Visits===
+Throughout the summer it is good to visit the station to pull the sampling bottles for analysis back in the lab and also to make regular discharge measurements.  On each visit the battery voltages of the autosampler and data logger should be recorded.  The autosampler manual can tell you how to check the battery voltage for it and to check the data logger voltage either use a volt meter or a keypad.
 ===Station Removal===
 [[Image:datalogger.jpg|right|thumb|500px|Sample data logger wiring panel.  First unplug the data logger (the power plug is green) and then disconnect other wires using a small flathead screwdriver.]]
-) Next, with a small flathead screwdriver disconnect the pressure transducer wires from the wiring panel.  The pressure transducer is the black cable with six colored (red, white, blue, black, yellow, and orange)
+To remove the station use the following instructions:
+# Disconnect power to the data logger, the green plug as shown in the picture to the right powers the data logger.  After this has been unplugged work can be safely done without adversely affecting the data.
-) After disconnecting the pressure transducer it can be pulled from the water, too.  Pull the auto-sampler tubing and the pressure transducer from the water.
+# Next, with a small flathead screwdriver disconnect the pressure transducer wires from the wiring panel.  The pressure transducer is the black cable with six colored (red, white, blue, black, yellow, and orange)
+# After disconnecting the pressure transducer it can be pulled from the water, too.  Pull the auto-sampler tubing and the pressure transducer from the water.
-) Coil the pressure transducer cabling.  There's a vent tube in the cabling so be careful not to coil to tightly or allow any kinks to form because these may pinch the vent tube.  If that happens the pressure transducer will no longer work properly (although it may still look great) because the vent tube allows the pressure transducer to record gage pressure rather than absolute pressure.  If the vent tube is pinched the transducer will measure something closer to absolute pressure with an offset of whatever the pressure was in the tubing when the pinch happened.  All that said though, as long as you carefully coil the pressure transducer cabling potentially pinching the cable shouldn't be an issue.
+# Coil the pressure transducer cabling.  There's a vent tube in the cabling so be careful not to coil to tightly or allow any kinks to form because these may pinch the vent tube.  If that happens the pressure transducer will no longer work properly (although it may still look great) because the vent tube allows the pressure transducer to record gage pressure rather than absolute pressure.  If the vent tube is pinched the transducer will measure something closer to absolute pressure with an offset of whatever the pressure was in the tubing when the pinch happened.  All that said though, as long as you carefully coil the pressure transducer cabling potentially pinching the cable shouldn't be an issue.
+# Leave the staff gage in the water for the next season.  Take everything else back to Fairbanks.
-) Leave the staff gage in the water for the next season.  Take everything else back to Fairbanks.
+# Bring the CR10X data logger up to Bob at 207E IARC (x2792) for downloading of data.

@@ Line 1: / Line 1: @@
 ===Overview===
 The Boston Creek station was established in 2005 after the large, intense fires of 2004.
+[[Image:BostonCreek.jpg|left|thumb|400px|Boston Creek Station, May 2007]]
 ===Station Installation===
 Install in the spring like early May.
 ===Station Removal===
 To remove the station use the following instructions:
 )