Vemco VR2AR Quick Reference Manual

This VR2AR Quick Guide provides basic information on key
VR2AR procedures. Full details for all VR2AR procedures are
found in the VR2AR User manual. We strongly recommend you
study the full user manual before using this quick guide.
Open Case
Place VR2AR on clean, stable surface so hydrophone hangs off edge. We recommend working in a
controlled environment.
Insert the steel rod into the Bluetooth Activator hole. Hold the body of the VR2AR securely in place
(a strap wrench on the VR2AR body can help).
Apply pressure to the rod to turn end-cap counter-
clockwise when you are facing the hydrophone.
Remove rod when the end-cap turns easily and
continue turning by hand.
Slide the end-cap and cylinder apart until the battery compartment has cleared the cylinder. Be
very careful not to damage the threads on the end-cap or the VR2AR won't close and seal properly.
Main Battery
The battery used for acoustic purposes is the D-cell Lithium battery held in the battery
compartment with a magnet and the compression of two pieces of foam. The motor
O-rings
Make sure the two O-rings in the end-cap, and
the corresponding O-ring surface inside the Outer
Cylinder, are clean and debris-free. If the VR2AR
has previously been
deployed, remove the
O-rings, clean them and
inspect them for cracks
or damage. Re-grease
the O-rings (Molykote
55) and place them in
the O-ring grooves.
battery should not need attention for many releases.
The battery connector is located next to the battery.
When installing the battery, listen for a "click" and watch
that the Status Light flashes. Be sure it flashes a long
green to indicate the VR2AR started up properly. When
disconnecting battery, press the release tab on the battery
connector and then pull connector halves apart.
VR2AR Receiver

Quick Reference Guide

Do not bump the VR2AR hydrophone or
expose it to extreme temperature variations.
Doing so may damage the receiver and render it
unable to detect transmitters.
Electronics inside the case must
NEVER come in contact with
any water or the VR2AR will be
damaged.
Close Case
Close the VR2AR case by doing the reverse of opening it, but
first put three new desiccant packs in the bottom of the tube.
Slide the flat end into the Outer Cylinder. Rotate the end-cap
clockwise, using the steel bar
when needed.
Stop turning when the gap
between the two halves is
closed. Over tightening could
damage the case.
NOTE: Dessicant packs help
reduce the occurrence of
condensation in the VR2AR.
TIP: Write the date on the battery.