Section 3 | Installation
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2022
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Valeport Ltd
Page | 10
3 Installation
The standard system is supplied in an ABS transit case, together with any communications
adaptors ordered. Any additional lengths of signal cable are packed separately.
3.1 Communications With a PC
The MIDAS SVX2 can be set up and interrogated using DataLog x2 software which is supplied
with the instrument or can be downloaded from Valeport website. Please refer to the separate
manual for details of how to use the software.
To connect the instrument directly to a PC for RS232 communications, use the 3m Y lead supplied.
This lead is fitted with a 10 pin SubConn type connector, which should be plugged directly into the
connector on the top of the housing (or to a length of signal cable). The lead also features 2 x
4mm bunch pins for application of external power if required and a 9 way D type connector which
should plug directly into a spare communications port on the back of the PC.
If non-RS232 communications are to be used, via the optional RS485, RS422 or FSK methods,
then the appropriate adapter should be used. Each adapter is supplied with an alternative Y lead,
which should be connected as follows:
Comms
Method
Adaptor
Part No.
Connections
RS485
0400029
Connect 15 pin D type and 4mm plugs from Y lead into adapter.
Connect 9 pin D type from adapter to PC, and 4mm plugs from
adapter to external power, as indicated on adapter housing.
FSK
0400005
Connect 4mm plugs from Y lead into adapter, leaving D types
unconnected (FSK uses power and signal on just two wires).
Connect 9 pin D type from adapter to PC, and 4mm plugs from
adapter to external power, as indicated on adapter
3.2 Deploying the MIDAS SVX2
All parts of the standard system (with the exception of the top part of the 3m Y lead) are designed
for immersion. All communications adaptors (RS485, RS422, FSK) are splash proof, but should be
sited in a dry place, as close to the PC as possible.
The MIDAS SVX2 is supplied with a stainless steel protective cage, but care should still be taken
not to damage the instrument. For profiling work, the recommended deployment method is to
suspend the instrument using the stainless steel wire strop fixed to the top of the cage. For fixed
deployments, the user may wish to remove the cage, and use the grooves in the instrument
housing as clamping points.
3.2.1 Real Time Operation
For real time data output, connect the signal cable to the 10 pin SubConn connector on the
instrument. All Valeport signal cables include a suspension point for strain relief, and a similar
arrangement is recommended for other cable types. Connect the top end of the cable to a PC
using the appropriate method as described above.