VEMCO - VR2W Manual
1
1
Introduction
1.1
System Overview
The VR2W is a submersible, single-channel acoustic receiver capable of identifying VEMCO
coded transmitters. The receiver operates on a factory set frequency of either 69 kHz or 180
kHz. VR2W receivers can decode uniquely coded pingers and sensor transmitters that operate
on the same frequency as the VR2W.
The VR2W is housed in a corrosion resistant cylindrical plastic high pressure case, and
incorporates an integral hydrophone at the tapered end of the case. The VR2W features include
Bluetooth®
wireless technology, a Smart LED, 16 megabytes of data storage, record mode, and
a replaceable battery (single Lithium cell).
The VR2W records the tag code number, the date/time of valid detections, and sensor data if the
tag received is equipped with a sensor. This information is stored in the VR2W memory until it
is downloaded from the receiver using
Bluetooth
wireless communication and a PC running
VUE software.
Some common uses for VR2W receivers are:
•
Monitoring fish movements using acoustic gates across shorelines
•
VEMCO Positioning System (VPS) arrays to track animals within a specific area
VR2W Quick Facts
Dimensions
308 mm (12.125") x 73 mm (2.875") diameter
Weight
1190 g in air; 50 g in water
Receive
Frequency
VR2W-69kHz: 69.0 kHz
VR2W-180kHz: 180.0 kHz
Battery Life
VR2W-69kHz: Approximately 15 months
VR2W-180kHz: Approximately 8 months
Memory
8 MB (~0.8 million detections) or
16 MB (~1.6 million detections)
Operating
temperature
-5°C to +40 °C; Water
must not freeze
.
Maximum
Depth
500 meters (730 psi)
Software
VEMCO User Environment (VUE) software
WARNING
The VR2W pressure case and
seal have a maximum static depth
rating of
500 meters
(730 psi).
Physical shocks to the receiver, such as
bumping into a solid object, when it is at
any depth can result in a considerably
higher pressure on the casing than just
the depth pressure and water may enter
the VR2W case. If the O-rings or their
mating surfaces are dirty or damaged,
then water may also enter the receiver
case. If you are suspicious that water has
entered the receiver, then follow the
suggestions in section 8.2.2 for
troubleshooting a pressurized case.
