Section 2 | Sensors
© 2021
– Valeport Ltd
Page | 4
module housing in the socket. If the Pressure Module is misaligned it will not tighten smoothly and
should be removed and turned by 180°.
Engage the screw cap into the threads of the socket and then use the tool to tighten the Pressure
Module into place. The module should be screwed down until the shoulder of the black screw cap
is in line with the shoulder of the titanium end-cap as shown below:
Inside the transit case an additional transit case is provided for the Pressure module to allow it to be
returned to Valeport for calibration without the need to send the whole instrument.
2.4 Calculated Parameters
From directly measured sound velocity, temperature and pressure, SWiFT calculates Salinity using
a proprietary Valeport algorithm developed from extensive laboratory and field work. This Salinity
value is then used to compute Conductivity using standard EOS80 formulas.
https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lom3.10203
2.4.1 Calculated Conductivity
Accuracy:
±0.05 mS/cm
Resolution:
0.001 mS/cm
2.4.2 Calculated Salinity
Accuracy:
±0.05 PSU
Resolution:
0.001 PSU
2.4.3 Calculated Density
Accuracy:
±0.05 kg/m3
Resolution:
0.001 kg/m3
