General Information
The system was designed to International Hydrographic Organization (IHO)
standards to measure the seafloor to a maximum depth of 320 meters.
If equipped with the Extended Range projector (Option 040), this depth increases
to 450 meters. Refer to Chapter 4 for additional information on this option. Option
040 is standard on all deep-water versions of the SeaBat 8101 (those rated to
1500 meters submergence depth, or more).
1.1.4
How Much Seafloor Does it Measure?
With an across track subtended angle of 150º, The SeaBat 8101 measures a
swath width of 7.4 times the water depth, when in depths of 1 to 70 meters. At
depths greater than 70 meters, the ratio of water depth to swath coverage de-
creases, as noted in Table 1 (all calculations assume the center of the swath to
be vertical).
Table 1, Seafloor Coverage
Depth in meters
Coverage (x water depth)
1-70 7.4
70-100 4.2*
100-150 2.7*
150-200 1.8*
200-250 1.6*
250-300 1.3*
* typical value
1.2 Safety
Precautions
The SeaBat 8101 system should be handled with attention to protection of the
hardware components and operator safety. General precautions include:
DO NOT
Connect or disconnect cables with power on.
DO NOT
Attempt to open and service the Sonar Head.
DO NOT
Operate the system while divers are in the water.
DO NOT
Touch or handle any internal printed circuit boards without specific
instructions from RESON.
DO NOT
Operate the SeaBat 8101 system at a power setting higher than 1,
while operating in air. A higher setting may damage the Sonar
Head’s transmit array ceramic elements.
Chapter 2 provides detailed procedures for the correct installation of the SeaBat
8101 system. Follow the steps provided for safety and to obtain the best system
performance.
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SeaBat 8101 Operator's Manual
1-4
Version 3.02
