Bench-Top Battery Power Requirements; Operation Modes - RD Instruments WorkHorse User Manual

WorkHorse Mariner ADCP User's Guide
a. Turn OFF or disconnect all power to all ADCP system equipment.
b. Remove the screws on the top cover of the deck box. Lift the cover off.
c. Locate the Filter Interface board (see
tor J18 and disconnect the twisted black and white cable plugged into
this connector. The power from the deck box to the ADCP has now
been disabled. Only the batteries are powering the ADCP.
7.1

Bench-Top Battery Power Requirements

While the WorkHorse is awake and responding to commands, it consumes
approximately 2.2 watts. A single internal battery pack supplies this power
level for about five days. When the WorkHorse is asleep, it consumes less
than one mw. A standard battery pack supplies sleep power for years. At
every opportunity, the WorkHorse will "sleep" to conserve power while de-
ployed.
7.2

Operation Modes

The WorkHorse has two modes of operation: command mode, and ping
mode (also referred to as "Deployment Saver" Mode). Depending on what
mode the ADCP is in; it will go either to sleep or to resume pinging.
In the Command Mode
Whenever you wake up your WorkHorse, power dissipation increases from
less than one mw to around 2.2 w. If you leave the WorkHorse in command
mode without sending a command for more than five minutes, the Work-
Horse automatically goes to sleep. This protects you from inadvertently
depleting batteries.
In the Ping Mode
After you send commands to the WorkHorse that tells it to start collecting
data, the WorkHorse goes into deployment saver mode. If power is some-
how removed and later restored, the WorkHorse simply picks up where it
left off and continues to collect data using the same setup.
page 16
Figure 5, page 8). Locate connec-
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