VEMCO - VR2AR / VR2AR-X Manual
15 March 2019
3
The VR2AR is shipped closed. The case only needs to be opened to power the unit. Because the VR2AR is
often shipped with the battery installed but not connected, the first task is usually to open the case and either
connect or install the battery. The only other time the case needs to be opened is when replacing the battery
or preparing the unit for long-term storage. Connecting the battery is explained in Section 2, along with
opening and closing the receiver case. Replacing the battery is explained in Section 5.1.
*Reported depth sensor accuracy assumes constant seawater density of 1025 kg/m
3
VR2AR / VR2AR-X Quick Facts
Dimensions
VR2AR
: 401 mm (15.63") x 81 mm (3.2") diameter
VR2AR-X
: 465 mm (18.29") x 81 mm (3.2") diameter
Weight
VR2AR
: 2350 g in air; 500 g in water
VR2AR-X
: 2746 g in air, 812 g in water
Receive Frequency
69.0 kHz
Battery Life
Approximately 14 months (
AR
w D-cell) or 26 months (
AR-X
w DD-cell)
Memory
16 MB (~1.6 million detections) or
32 MB (~3 million detections)
Built-in Temperature
Sensor
Accuracy: ±0.5°C
Resolution: 0.1°C
Built-in Depth Sensor
Accuracy: ±1.5°C*
Resolution: 1 m
Operating temperature
-5°C to +40 °C; Water
must not freeze
.
Maximum Depth
500 meters (730 psi)
Software
Latest
VEMCO User Environment (VUE) software
Communication
In air:
Bluetooth
communication with VUE software
In water: Acoustic communication with a VR100-200 using a
transponding hydrophone
WARNING
The VR2AR 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 VR2AR 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.
