Technical Specification MicronNav System
0656-SOM-00001-07 11 © Tritech International Ltd.
2.4. Subsea Modem Head
Operating Beamwidth Omni directional Transducer
Power Requirement 12-48V DC
Note: Reverse and over-voltage protection are not provided to
the power supply.
Frequency 20-28kHz Spread Spectrum
Power Consumption Dependent on the system interrogation rate which is user
controlled (0.5, 1, 2, 5 or 10sec) for example at 1sec update the
average power consumption would be 175mW typical and at
0.5sec would be 350mW typical.
Main Port Type factory set to RS232
Note: Transient and over-voltage protection is applied to the
Comms ports but Comms ports are not DC isolated.
Main Port data rate factory set to 9600 baud (others available on request)
Aux Port Type factory set to RS232
Aux Port data rate factory set to 9600 baud (others available on request)
Depth Rating 750m (2,460ft)
Maximum Diameter 56mm (2.20 inches)
Maximum Height 76mm (2.99 inches)
Fixing Points 4 off M3 x 0.5 Tap 5.0 full thread
Weight in Air 210g (7.4oz)
Weight in Water 55g (1.9oz)
Material Housing: Anodised Aluminium
Transducer: Polyurethane
Operating Temperature -10°C to +40°C
Storage Temperature -20°C to +50°C
Caution
This specification refers to the Micron Nav Modem. The Micron Range (Sonar/
Seasprite, Echosounder, Micron Nav Modem) work on a voltage range of 12-48V
DC with the exception of the Micron Data Modem which uses 12-24V DC. If you
are unsure which product you are using either opt for a lower voltage or contact
Tritech International Ltd to discuss product options.
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