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Eirik Blomseth

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Latest activity by Eirik Blomseth
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    Eirik Blomseth created an article,

    Estimating instrument power consumption

      Retrieving an instrument after six months, just to discover that its only been measuring for two, can be quite frustrating.. Luckily the instrument software should help you prevent this. There ar...

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    Eirik Blomseth created an article,

    Connection Troubleshooting - Signature/DVL

    This guide will show you some common and simple ways of testing the connection to your instrument.It is meant to serve as a starting point for basic troubleshooting when you are experiencing connec...

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    Eirik Blomseth created an article,

    How to open and tighten ADCP endbell

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    Eirik Blomseth created an article,

    Deployment file issue

    Nortek instruments have been used actively for over a decade now and have proven to withstand the test of time. As a result it is common practice for many companies to use old deployment files.   H...

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    Eirik Blomseth created an article,

    Connection Troubleshooting - Midlife

    This guide will show you some common and simple ways of testing the connection to your midlife instrument.It is meant to serve as a starting point for basic troubleshooting when you are experiencin...

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    Eirik Blomseth created a post,

    Direction calculations in Excel

    If you have issues with the direction calculations in excel this might be helpful to know:   From an internal question regarding the direction calculations and the formula used: Direction = 180 +...

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    Eirik Blomseth created an article,

    Instrument current draw

      For Midlife and pre-midlife instruments, not ad2cp (Signature and DVL) instruments.   If your Nortek instrument does not last as long as indicated by the calculated time in the deployment, this m...

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    Eirik Blomseth created an article,

    Torque procedures for screws in threaded plastic

      We are often asked to provide specific torque values for screws that secure endcap assemblies to threaded plastic instrument housings. The endcap is removed for access when, for instance, changin...

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    Eirik Blomseth commented,

    Hi, just gonna chime in here: The DVL doesn't actually remove the vehicle's speed through the water from the current profiles, so they need to be corrected in post-processing for Earth vs. water sp...

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    Eirik Blomseth created an article,

    Basic termination RS232 and RS422

      This article covers the standard termination for midlife instruments. Different variations exist, but the transmit (Rx/Tx) and Power (Pwr/Gnd) lines are the same.Opening the instrument and access...