
VEMCO – VR4-UWM Manual
65
9.3
VR4-UWM Specifications
9.3.1
General Specifications
Size
Height: 50.3 cm (19.81”)
Max Diameter: 22.2 cm (8.75”)
Weight
With lithium battery, no external connector
In air: 12.32 kg (27.1 lbs)
In sea water: 2.1 kg (4.6 lbs) sinking
With alkaline battery, no external connector
In air: 13.21 kg (29.1 lbs)
In sea water: 2.99 kg (6.6 lbs) sinking
Receive Frequency
69.0 kHz and 180.0 kHz
Battery
Lithium:
Custom Tadiran PulsesPlus battery, 10.8V, 24 D cells
Weight: 2.58 kg (5.7 lbs)
Alkaline:
Custom battery, 12V, 24 D cells
Weight: 3.47 kg (7.6 lbs)
Battery Life
See section 6.8
Memory
16 Megabyte Flash Memory (approximately 800,000 detections)
Operating
temperature
-5°C to +40 °C
NOTE: Water in which VR4-UWM is deployed must not freeze.
Shipping & storage
temperature
-18°C to +50°C
Static depth rating
500 meters (730 psi)
Modem frequency
band
22-27 kHz
Ingress Protection
IPX8 to rated depth
Bluetooth®
wireless
certifications
Bluetooth ID: B012394
FCC ID: ED9LMX9838
Industry Canada ID: IC-1520A-LMX9838