Recognising the conflict faced by users requiring the superior sound velocity data from an SVP, but still needing the salinity and density data from a CTD, the MIDAS SVX2 combines both technologies to give the best of both worlds.
Now fitted with a 0.01% pressure sensor as standard, the SVX2 also uses synchronised sampling to ensure perfect profiles, and since the digital time of flight SV sensor is the most accurate in the world, it’s also possible to compare the true sound velocity data with that generated by commonly used equations.
The unit is fitted with the following sensors:
Sound Velocity
Type: Valeport “time of flight” sound velocity sensor
Range: 1400 to 1600m/s standard. Factory fit option of 1600 to 1850m/s is available
Accuracy: ± 0.03m/s
Resolution: 0.001m/s
Conductivity
Type: Valeport inductive coils
Range: 0 – 80mS/cm
Accuracy: ± 0.01mS/cm
Resolution: 0.002mS/cm
Pressure
Type: Temperature Compensated Piezo-Resistive Sensor
Range: 600Bar absolute (approx 6000m water depth) standard. Others available.
Precision: ± 0.01% Full scale (±0.6m with a 600Bar sensor)
Resolution: 0.001% Full scale (0.06m with a 600 Bar sensor)
Temperature
Type: Fast response PRT
Range: -5 to +35°C
Accuracy: ± 0.01°C
Resolution: 0.002°C
Ordering Information:
0650010 Self-recording Sound Velocity Profiler & CTD in titanium housing, with 16 Mbyte RAM memory. Fitted with carbon composite time of flight sound velocity sensor, pressure balanced conductivity sensor, 0.01% FS pressure sensor (3000 or 6000decibar) and fast response PRT temperature sensor. Supplied with deployment cage, Subcon switch plug, DataLog Express Windows software package, 3m “Y” lead (probe to PC and power supply), RS232/USB adaptor, tool kit, operating manual and system transit case.
Options
0400002 16 Mbyte memory upgrade chip. Max 64 Mbyte
Direct Reading Communications Options
0400005 FSK communications option, for use with up to 6000m cable. Comprises additional pcb inside instrument & surface adaptor unit with interface to PC and external DC power.
04000542 USB to RS485 adaptor package c/w USB – RS485 isolated converter and advanced Y lead.
0400EA11 Pigtail 50cm – Male Line 10 pin Subconn with sleeve, for connection to instrument. (Subconn parts MCIL10M and NSW DLSA-M)
0400EA12 Pigtail 50cm – Female Line 10 pin Subconn with sleeve, for connection to comms lead. (Subconn parts MCIL10F and NSW DLSA-F)
0400EA50CD 50m Signal cable on hand reel. Fitted with Subconn 10 way connectors.
0400EA100CD 100m Signal cable on hand reel. Fitted with Subconn 10 way connectors.
0400EA200CD 200m Signal cable on hand reel. Fitted with Subconn 10 way connectors.
Components and Spares
0400EA4 3m “Y” lead, instrument to PC/ power supply (Subconn type).
0400EA3 Subconn switch cap assembly
TKSVX2 Set of tools & spare o-rings for MIDAS SVX2
TCA1700 Peli 1700 Transit case for MIDAS CTD / SVP
0400035T Titanium Subconn bulkhead connector with sleeve for instrument. (Subconn parts MCBH10F & NSW DLSA-F. Specify Titanium)
0400035B Brass Subconn bulkhead connector with sleeve for cable reel. (Subconn parts MCBH10F & NSW DLSA-F. Specify Brass)
0400036 Subconn line connector kit, for signal cable or Y lead. (Subconn parts MCOM10M, NSW DLSA-M & OMBA. Requires polyurethane potting compound).
0400SA2 Stainless steel cage assembly for MIDAS CTD / SVP
0400SA3 Suspension strop assembly
0400037 Spare titanium screws for body (M5 x 20 socket cap head), price each
midas-svx2-spec-sheet