uvSVX and uvSVXe Operating Manual: MANUAL-857569191-11 | issue 1.7
Page | 3
© 2021
– Valeport Ltd
2.3.1 Interchangeable Pressure Sensor Modules
The Interchangeable Pressure Sensor Modules can be swapped to best suit the operational depth
of the project. The accuracy of the sensor is a factor of the full-scale capability of the sensor -
0.01% and not the measured pressure. A 600 Bar module will offer the same ± 0.60m accuracy at
6000m as it will at 300m while a correctly selected 30 Bar Pressure Module, for an operation at
300m, will provide an accuracy ± 0.03m
Bar
Approximate maximum
operational depth
metres
Accuracy (0.01%)
± metres
10
100
0.01
20
200
0.02
30
300
0.03
50
500
0.05
100
1000
0.10
200
2000
0.20
300
3000
0.30
400
4000
0.40
600
6000
0.60
Prior to changing out a Pressure Module the uvSVX should be thoroughly rinsed in fresh water and
dried.
A Pressure Module should ideally be changed in dry lab conditions but if this is not possible every
effort must be made to keep water out of the module socket. Check the module and socket for any
water and if found dry everything thoroughly before fitting. If water does get into the socket it could
cause the connector to corrode.
A special tool is provided to unscrew the fitted module and screw its replacement securely into
place. Never use excessive force. The design allows the Pressure Module to be swapped out
without the need to remove the protection cage of the uvSVX.
The three prongs should be carefully inserted into the black screw cap of the Pressure Module and
turned counter-clockwise (when looking directly at the module) to loosen it. Keep turning until the
Pressure Module gently pops out of the socket. The tool will engage with the Pressure Module and
allow you to very gentle pull if required.
Before fitting a replacement Pressure Module, check all surfaces for ware - especially the screw
cap. Check the O ring is clean and free of any ware or damage. There is no need to grease the O
ring. The closing action of the system does not rely on surfaces sliding over one another and
grease might attract debris that would compromise the seal.
The replacement Pressure Module should be placed into the socket with the connector
approximately lined up with its pair in the socket. Fine adjustment is achieved by the shape of the
