Sentinel V SC and RT Operation Manual
September
2017
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 23
Available Real-Time Options
The following section explains the different options available for RT ADCPs. See the
for more information.
•
Transducer
– The standard nominal ranges are 20m (1000 kHz), 50m (500 kHz) and 100m (300
for dimensions and weights.
•
Vertical Beam
– an optional vertical beam is available.
•
Waves Feature
– Optional feature that provides full water column echo and velocity profiling to
make accurate measurements of wave kinematics as well as the confidence to verify that the pro-
cessed wave statistics are accurate. Use Plan to set up the Sentinel V Real Time ADCP to collect
Waves data. See
•
End-Cap
– The End-Cap consists of an IEEE 802.11b/g/n WLAN wireless communications Touch
Sensor and underwater electrical 8-pin serial RS-232 or RS-422 connector. Please note that the
touch sensor is disabled while in Real-Time mode.
•
End-Cap Connector
– The 8-pin connector can be straight or right-angled. See the
•
Deck Box
– The Deck Box converts AC power input into 16 VDC output for the Sentinel V RT in-
put power. It can convert the computer serial interface from RS232 to RS422.
•
Internal Batteries
– Depending on the type of housing the system is configured with, the Sentinel
V Real Time system may use a battery pack, lithium battery pack (optional), individual D cell
batteries, external power only, or both external power and batteries.
•
Lithium Battery Pack
– This battery pack is assembled using lithium battery cells that provide 15.6
VDC with a capacity of approximately 1900 Wh. The battery includes a safety circuit that pro-
tects the battery and users against short circuits and provides users the ability to test the pack
(see
Testing the Lithium Battery Pack
). The circuit also turns the battery off at its end of life, be-
fore the battery fully discharges. This happens when about 97% of the battery’s capacity is de-
pleted.
•
External Battery Case
– The optional
holds two pre-assembled battery packs
for a nominal voltage level of 18 VDC.
•
AC Adapter
– The AC adapter provides 18 VDC.
•
Underwater Cable
– The system includes a 5-meter underwater serial or Ethernet cable. The max-
imum cable length is 100 meters.
•
Housing
– The Sentinel V Series
ADCP dual-chamber housing al-
lows deployment depths to 200
meters. The dual-chamber design
keeps the electronics dry even if
the battery chamber floods. See
for dimensions and weights. The
housing type and length will de-
pend on if it uses battery packs or
individual D cell batteries. The RT
(no battery) housing uses a single
chamber.
•
Memory
– The Sentinel V includes a microSDHC memory card.
•
Pressure Sensor
– The pressure sensor (standard 30 Bar) measures water pressure (depth).