Nortek DVL 1000 300m, Руководство пользователя

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Introduction 5
© 2017 Nortek AS
2 System Overview
A DVL (Doppler Velocity Log) is an acoustic Doppler instrument which has the ability to estimate the
velocity relative to the bottom (Earth being the frame of reference) or relative to the water.
Displayed is a Shallow Water 1 MHz DVL (DVL1000-300m ) and differs from
the deep w ater vaiants by having the Grounding Plate
The DVL comes with a high precision pressure sensor, which provides a means to estimate depth,
and a temperature sensor that provides data used for calculating speed of sound. Further to this, it
has acoustic beams oriented in a diverging, convex configuration, and each beam provides an
estimate of range so that the altitude over the bottom may be estimated. The system comes with
two 8-pins connectors, for Serial and Ethernet communication. Refer to the
Connector Pin
Configuration section for pin outs.
The blue LED will start flashing when power is applied, the flashing means that the DVL is in
measurement mode. There are three settings for the LED: ON allows the LED to indicate operation
and modes; OFF disables the LED completely. ON24H enables the LED for 24 hours after the
instrument starts pinging.