Banner DF-G1-PR-Q7 Instruções de Operação Página 48

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DPN 402197 © TSS (International) Ltd Page 11 of 14
5. The design of the mounting bar allows you to adjust the distance between the coil
triads anywhere from approximately 1 metre to nearly 2 metres while maintaining
their correct alignment.
Slide the two coil triads on the mounting bar until they are at the correct separation
distance (between 1m and 1.76m). Make certain the coils are equally spaced about
the ROV centre line. Tighten all the securing bolts of both clamping blocks evenly. Do
not over tighten these bolts.
The coil identification labels have reference marks
to simplify measurement of the coil separation
distance. Measure and record the distance
between the reference marks so that you may con-
figure the DeepView with this important informa-
tion.
Also, record the serial numbers and calibration
constants for each of the six sensing coils. You
will find these numbers stamped on the brass end caps of the individual sensing coils.
Refer to sub-section 4.1.4 for instructions to complete the electrical installation of the
coil triads.
Appendix C includes an example of a form that you may use to record the coil separa-
tion distance, the coil serial numbers and their calibration constants. This is impor-
tant information that you must use to configure the 350 System correctly.
3.2.3 Altimeter Installation
When you use an altimeter with the 350 System, install it according to the following
guidelines:
Install the altimeter as close as possible to the centre of the coil array.
Make certain the altimeter has a clear vertical view to the seabed across its entire
beam width.
When you select a position for the altimeter, make allowance for its minimum
measurement range capability.
Measure and record any vertical offset between the transducer face of the altime-
ter and the reference line of the coil array (as defined in Figure 3–2). You will use
this information to configure the display software.
Use stainless steel clips to secure the altimeter to the ROV frame so that it does
not move or vibrate independently.
Do not install the altimeter at the opposite end of the ROV to the coils. If you do
not follow this advice, there is a possibility that the survey data will contain errors
caused by pitch of the ROV or uneven seabed topography. See the explanation
below for details.
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Coil separation reference
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