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I have a standard ADCP with a 50m pressure sensor. The ADCP is rated to 200 meters, so can I deploy to 200 meters?

April 26, 2017adcp deploy meters pressure rated sensor standard

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I have a standard ADCP with a 50m pressure sensor. The ADCP is rated to 200 meters, so can I deploy to 200 meters?

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No. Even though the ADCP’s housing is rated to 200 meters, the pressure sensor is now the limiting factor because its rating is shallower. The ADCP cannot be deployed to a depth deeper than 50 meters (the rating of the sensor). If you do deploy beyond the recommended depth, your pressure data will not be very accurate(as you are overexposing the sensor, an effect that will cause hysteresis) and you have a chance of breaking the pressure sensor and possibly flooding the system.