Teledyne RD Instruments SENTINEL V REAL-TIME, Руководство по эксплуатации

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September
2017 Sentinel V SC and RT Operation Manual
Page 30
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Power on Cycle
The power supply or battery pack must be able to handle the inrush current as well. Inrush current is the
current required to fully charge up the capacitors when power is applied to the Sentinel V Series ADCP.
The capacitors provide a store of energy for use during transmit. The inrush current is as high as 0.8
Amps RMS at 9.2 VDC. The ADCP will draw this amperage until its capacitors are fully charged. If the
power supply or battery pack limits the current or the power drop on the cable is significant, then the
power on cycle will take longer. It can take up to three minutes. The power must not shut down during the
inrush current draw, as this may not allow the Sentinel V Real-Time Series ADCP electronics to start.
Before using the optional Lithium battery pack, always run the battery self-test. See Testing
the Lithium Battery Pack for instructions.
Instruments with high inrush currents occasionally trigger the optional Lithium battery pack
short circuit detection, which turns the battery off. If this happens, do the following:
•
Disconnect the battery and touch the ADCP’s touch sensor for about 45 seconds to
one minute. Connect the battery and then the ADCP should power on normally.
•
If the ADCP still does not power on, connect the AC adapter and wait for a minute
and then connect the battery pack. Once the ADCP is connected and Sentinel V RT
Utilities
started, unplug the AC adapter. The ADCP will work normally after that.
Power for Bottom Track
The Sentinel V Real-Time is capable of Bottom Track if enabled, but the power requirements are different
from standard operation. The recommended input voltage is 16V and current up to 8A. There are also
specific cable requirements depending on length of cable required, up to 100m (see Specifications , Table
18). Use of the Teledyne RDI supplied Deck Box and cable are highly recommended. Bottom track is not
recommended when using battery power.
Real-Time Touch Sensor Response /
System Beeps
When the system is configured for Sentinel V Real-Time serial communications and power is applied,
there is one long beep. When the system is configured for Sentinel V Real-Time Ethernet communications
and power is applied, there is one long beep, a ~15 second delay and then two short beeps. Wait for the
short beeps before sending a Break to the system.
The touch sensor is disabled in Real-Time mode
; the touch sensor does not respond or beep if touched except
during firmware updates or switching modes. See Installing Sentinel-V Real-Time Firmware Upgrades
and Switching RT and SC Modes for more information.
Real-Time ADCP Commands
For more information about Sentinel V Real-Time ADCP commands, see Chapter 8 – Real-Time
Commands.