Issue with some NERD 2 Depth Sensors
What is the issue?
When miniaturizing the NERD 2 product, we changed to a smaller
pressure sensor module. Unfortunately, some units are exhibiting shifts of up
to 50 mbar under certain environmental conditions.
While the units are able to meet relative depth accuracy
requirements as per EN 13319, Shearwater feels that absolute accuracy is
important for PPO2 reporting and decompression calculations.
What is Shearwater doing about this?
Shearwater is redesigning the NERD 2 to use the pressure
sensor with which we have more than 10 years of successful experience.
Production and new sales will be suspended until improved parts are
available. All existing NERD 2 customers are being offered the update to the
new parts at no charge.
Can I continue to use my NERD 2?
This problem is variable in nature and some users will not be
affected. Determine if your
NERD 2 is affected using the information below.
You may continue to use your NERD 2 if you are
comfortable with the level of error in the absolute accuracy. However, we
still recommend that all users return their NERD 2s to be reworked.
What should I do?
We expect the solution to be ready for the rework to begin in
May. We felt it important to raise awareness before the solution was
ready. Please contact Shearwater at info@shearwater.com if
you have a NERD 2 and we will direct you to the nearest service center for
rework.
We apologize for the frustration you are feeling.
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Determining If your NERD 2 is affected
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