SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West
SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West
SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Argonaut</strong> Operation <strong>Manual</strong> Firmware Version 7.9 (May 1, 2001)<br />
<strong>SonTek</strong>/<strong>YSI</strong><br />
After installing the compass, you need to specify the system orientation so the <strong>Argonaut</strong> will<br />
correctly interpret compass data. To specify the orientation for up-looking operation, establish<br />
direct communication with the <strong>Argonaut</strong> and send the following command.<br />
ORIENTATION SET UP<br />
After sending the command, send a BREAK to the system. List the hardware configuration<br />
parameters by sending a Show Conf command, and verify that orientation is correctly set. The<br />
system is now ready for operation.<br />
Down-looking compass installation<br />
Figure 6 shows the installation of the compass/tilt sensor in the <strong>Argonaut</strong> <strong>XR</strong>/SL housing for<br />
down-looking operation. The component side of the compass board is mounted towards the<br />
bottom of the housing. This ensures the compass faces up when the <strong>Argonaut</strong> is deployed<br />
looking down. Note that compass components that are below the board (i.e., not directly visible<br />
when the compass is installed) are drawn with dashed lines in Figure 6.<br />
For down-looking operation, a set of 3/4" hex standoffs (included in the <strong>Argonaut</strong> tool kit) must<br />
be installed onto the existing standoffs. This provides the necessary clearance to install the<br />
compass with the components facing down. These standoffs should be snugly screwed into the<br />
3/8" standoffs, but take care not to over-torque as this may strip the threads.<br />
For down-looking operation, the positive Y-axis of the compass should match the negative<br />
X-axis of the <strong>Argonaut</strong>. The positive X-axis of the compass is aligned 90° clockwise of the<br />
<strong>Argonaut</strong> X-axis.<br />
When installing the compass, the board is secured with short #4-40 screws (spares are included<br />
in the <strong>Argonaut</strong> tool kit). Install fiber washers on both sides of the compass board for protection.<br />
It may be helpful to stick the washers to the compass board with a small amount of silicon grease<br />
before putting the compass into the housing (the o-ring grease in the <strong>Argonaut</strong> tool kit works<br />
well). The same grease can be used to stick the #4-40 screws to the wrench when reaching into<br />
the canister. The compass mounting screws should be tightened securely, but not over-tightened.<br />
After installing the compass, you need to<br />
specify the system orientation so that the<br />
<strong>Argonaut</strong> will correctly interpret the<br />
compass data. To specify the orientation<br />
for down-looking operation, establish<br />
direct communication with the <strong>Argonaut</strong><br />
and send the following command.<br />
ORIENTATION SET DOWN<br />
After sending the command, send a<br />
BREAK to the system. List the hardware<br />
configuration parameters by sending a<br />
Show Conf command, and verify that<br />
orientation is correctly set. The system is<br />
now ready for operation.<br />
Compass 10 pin connector<br />
X<br />
Y<br />
Compass<br />
Coordinates<br />
<strong>Argonaut</strong><br />
X-Axis<br />
<strong>Argonaut</strong><br />
Housing<br />
Underwater<br />
Cable<br />
Figure 6 – <strong>Argonaut</strong> <strong>XR</strong><br />
Down-Looking Compass Installation<br />
43
Change language