User manual

Table Of Contents
The system turns on the sensors two minutes before the scheduled start time of each
profile. Profiler motion begins at the scheduled start time. During the profile, the sensors log
data autonomously and the MMP records engineering and status information. Motion stops when
the end of the programmed profiling range is detected. The sensors continue to log internally for
two minutes. The system then stops the sensors and transfers their data to the flash card. The
intervals of sensor logging before and after the profile provide data that may be used during post-
processing to correct for sensor drift. Other conditions, such as an obstacle blocking the mooring
cable, may be detected during a profile and may trigger corrective actions. A profile is
considered complete when the sensor and engineering files have been closed. The system enters
the low power sleep and waits for the next scheduled profile.
The system will continue to conduct profiles in this manner until the deployment is
terminated. Termination will occur if the battery is fully drained or if the file system becomes
full. The deployment can also be manually terminated by the operator after recovery.
Deployment Initialization
When Deploy Profiler is selected, the system conducts a deployment initialization
procedure to confirm that the MMP is ready to deploy. During deployment initialization the
system does the following:
1. Checks that the file system has been successfully initialized (a warning and
instructions will be displayed if there is a problem).
2. Prompts the operator to set the RTC (the real-time clock must be accurate for a
successful deployment).
3. Displays the profiling odometer and trip meter, and prompts the operator to reset
the trip meter.
4. Verifies CTD and ACM settings (the operator can select automated or manual
verification or may choose to skip the sensor check).
Automated verification establishes that the standard CTD and ACM settings have been
programmed into the sensor EEPROMs. The system does not correct the settings when an
unexpected response is received. If a sensor problem is detected, a warning will be displayed and
the system will terminate the deployment.
Manual verification establishes pass-through communications channels to the sensors and
allows the operator to verify, and change if desired, the settings of the CTD and the ACM. If
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