Service Manual 81
© 2018 Nortek AS
The head configuration file is sent from us to you upon request. When you have received the .bin file,
proceed with the following:
Connect the instrument to a PC.
In the instrument software, select Configuration > Sensor head.
Browse and select the new headfile and click ‘Open’.
When the head file is configured, it is important to:
Set the pressure offset
Level the instrument and confirm the tilt reading
The probe configuration file must be updated whenever the probe has been replaced.
In certain troubleshooting situations Nortek Support may ask you to download your current head file.
To do so follow these steps:
Connect the instrument to the PC and start instrument software.
In the Terminal Emulator click Log File and give the file a descriptive name.
Type GH, which is short for Get HeadFile, and Send.
Stop logging the file.
You have now captured the data necessary for a head file.
Remove the last two binary characters (06 06 which is acknowledge).
Save the file as a *.bin.
3.8 Mechanical Aspects and Maintenance
Preventive maintenance is your primary tool to keep your instrument in shape and ready for action
and deployment. We recommend a regularly scheduled procedure which will act as a preventative
measure to ensure your instrument continues functioning as intended. The following sections can be
used as a maintenance guideline for the components that may be exposed to wear and tear.
Only qualified personnel are allowed to perform corrective maintenance activities. Please contact
Nortek for further assistance if any doubt.
3.8.1 Mechanical Tolerances
Watertight sealing of the instrument housing is provided by double O-rings on the head and endbell
sub-assemblies. The outer O-ring forms the primary seal and the inner forms a secondary (or
backup) seal. When opening the instrument, great care should be taken to keep the sealing surfaces
clean and protected from mechanical damage. Keep water out of the open pressure case. Both fresh
and salt water can corrode the circuitry.
If the instrument has been subjected to environmental conditions outside the specified design limits,
mechanical tolerances may be affected.
3.8.2 Instrument Care
The Nortek instruments are intended for use in water. Other fluids may have an adverse effect on the
plastic materials used. If using the Vectrino/Vectrino Profiler lab probes in saline water, it is
recommended to keep the deployment time short and to clean the probe with clean water after the
deployment. The material used on the probe is Stainless steal, but we have seen signs of corrosion
on probes used in saline water and would therefore emphasize that this is not a useage that the
Vectrino/Vectrino Profiler probe has been designed for. Using the field probe is the recommended
solution.
For prolonged storage at elevated temperatures close to or at the specified limit, or when
temperature control is uncertain, it is recommended that the screws securing the end caps to be
loosened in order to minimize the risk of any deformation due to temperature/stress condition over
time.
Do not use the molded head or endbell as a clamping surface, always clamp to the instrument
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