YSI Vertical Profiler Systems - Manual (Page 6)

YSI Profiler System USER Manual
The program makes a second and third attempt to run the motor. If current threshold is still
exceeded, the program aborts to SETUP mode.
Figure 1-3 Block Diagram – YSI Profiler Control and Winch Assemblies
The Watch Dog circuit provides a 90 to 120 second power interrupt to the CR10X in the unlikely
event the program fails to execute as expected. It takes approximately 36 hours of no SDM I/O
port activity for the Watch dog to time out. After 36 hours the program will re-initialize to
SETUP mode which then requires manual operator intervention to restart the profiling program.
A belt-driven diamond screw and a V-roller suspension assembly help guide the sonde cable as it
moves in and out of the winch drum. This level wind mechanism is powered and synchronized
by the motor drive timing pulley. The design of the driving pulley, the speed reducing pulley,
and the reverse screw allows the cable carriage guide to move laterally at the correct speed to
properly lay the cable on the drum. See Section 3 for details.
Other components required for the system include a 12 volt battery, solar panels, and solar
charger/regulator. Optional equipment includes a depth sounder (or a fixed reference sonde) to
measure the water level, meteorological sensors, beacons, telemetry modules, antennas, compass,
and counter weights for stabilizing the platform.
YSI Environmental 669523 Rev B Page 1-3