VEMCO - VR2AR / VR2AR-X Manual
15 March 2019
25
4.3
Acoustic Release
The VR2AR release mechanism is a push-off pin that is controlled by a DC
motor using a titanium shaft. The exterior of the shaft is copper to reduce bio-
fouling. Follow the steps listed below to release the mooring lug and allow the
VR2AR to rise to the surface.
1.
Connect the transponding hydrophone to the hydrophone connector on the
VR100-200 receiver (first connector).
2.
Turn on the VR100-200.
3.
Select “Transpond” in the main screen.
4.
Select “Auto Scan” and wait while the VR100-200 listens for the units in the
area to respond.
5.
Select “View” to see the list of receivers found.
6.
Select the desired VR2AR from the list by either moving through the list
using the direction arrow buttons and then pressing the right selection button
(under “Select” on the display), or by pressing the associated number on the
keypad.
7.
Select “Status…” from the menu (press “1” on keypad).
8.
[optional]
Select “Get Health” (press “1” on keypad). This establishes
communication between the VR2AR and the VR100-200 and reduces the
“talk time” necessary to communicate.
9.
Press the “MENU” button twice to move back to the Transponding menu.
10.
Select “Acoustic Release” (#3)
11.
Select “Arm” (#2) from the menu and wait for the status to change to
“Armed”.
NOTE:
A VR2AR with firmware 1.2.5 and up
does not require this arming step. Just proceed
to the Activate step described next.
12.
Select “Activate” (#3) to send the release
command.
13.
After reading the confirmation screen, select “Activate” again. The status is
reported as “Opening” until the motor in the VR2AR has completed its task,
at which time the status changes to “Open.” With the proper amount of
buoyancy attached to the VR2AR, it should be rising to the surface.
14.
Press “Menu” to go back a screen and then
select “Status” (#1). The current status is
reported and refreshing the information (select
“Resend”) allows you to view the progress to
the surface.
More VR100-200
commands are found in
the VR100 Acoustic
Communication manual.
If you need to release the mooring lug while in
Bluetooth
communication, see section 3.8
1 Status
2 Arm
3 Activate
Select
VR2AR:000001 150m
Status: Open
Depth: 0m
Resend
