Valeport MIDAS SVX2 Operating Manual Download Page 1

 

 

 

 

MIDAS SVX2 Combined SV and CT Profiler - 

Operating Manual

 

 

Document ID 

MANUAL-1553401442-1 issue: 1.5 

Date: 

March 2022 

 

This confidential document was prepared by the staff of Valeport Limited, the Company, and is the 
property of the Company, which also owns the copyright therein. All rights conferred by the law of 
the copyright and by virtue of international copyright conventions are reserved to the Company. 
This document must not be copied, reprinted or reproduced in any material form, either wholly or in 
part, and the contents of this document, and any method or technique available there from, must 
not be disclosed to any other person whatsoever without the prior written consent of the Company. 

© 2022 Valeport Ltd 

 

Valeport Ltd 
St Peter's Quay 
Totnes TQ9 5EW 
United Kingdom 

Phone: 

email:  

Web: 

+44 1803 869292 
[email protected] 
www.valeport.co.uk 

 

As part of our policy of continuous development, we reserve the right to alter, without prior notice, 
all specifications, designs, prices and conditions of supply for all our equipment 

 

 

Summary of Contents for MIDAS SVX2

Page 1: ...cument must not be copied reprinted or reproduced in any material form either wholly or in part and the contents of this document and any method or technique available there from must not be disclosed...

Page 2: ...2 4 2 Based on Batteries 8 3 Installation 10 3 1 Communications With a PC 10 3 2 Deploying the MIDAS SVX2 10 3 2 1 Real Time Operation 10 3 2 2 Self Recording Operation 11 3 2 3 LED Flashing Sequence...

Page 3: ...ntenance tools and spare o rings DataLog x2 Software CD Operating Manual Transit case In addition the following components may be supplied as optional extras RS485 communications adapter FSK modem com...

Page 4: ...olution 0 001m s 2 1 2 Conductivity Type Valeport inductive coils Range 0 80mS cm Accuracy 0 01mS cm Resolution 0 002mS cm 2 1 3 Pressure Type Temperature Compensated Piezo Resistive Sensor Range 600B...

Page 5: ...8mm 665mm long including connector Cage 825mm long x 140mm x 120mm Weight in cage 13 5kg in air 9kg in water Depth Rating 6000m unless smaller pressure sensor fitted 2 2 2 Connectors Instrument 10 pin...

Page 6: ...Section 2 Specifications 2022 Valeport Ltd Page 4 2 2 3 Dimensions...

Page 7: ...le in 16Mb steps to 64Mb Internal Power 8 x 1 5v alkaline C cells The unit will accept 8 x 3 6v Lithium C cells with no alterations required Do not mix battery types External Power Between 9 and 30v D...

Page 8: ...8Hz Memory used per second is 10 x 8 bytes 80 bytes Total memory fitted is 16 777 216 bytes Seconds before memory full is 16 777 216 80 approx 209 700 seconds This is equivalent to 58 hours This perio...

Page 9: ...o do it after every profile to get the memory card out All memory cards are susceptible to ESD shock static electricity while being handled We take the view that the value of your data means it should...

Page 10: ...95 efficient total available charge 6 8Ah Continuous Data Sampling 8Hz At 12v the instrument draws 60mA when sampling Total charge available is 5 850mAh Number of hours available is therefore 5850mAh...

Page 11: ...he risk could be overcome by adding an air vent to the housing but this could compromise the water tight nature of the housing Better to remove the risk altogether Secondly the most commonly used rech...

Page 12: ...ect 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 pl...

Page 13: ...l power and apply higher voltage Continuous ON for 2 seconds Indicates the start of Burst Sampling pattern 5 Rapid Flashes Indicates the end of Burst Sampling pattern The duration of the burst may be...

Page 14: ...ge transducer face or reflector plate of the sound velocity sensor and paying particular attention to the core of the conductivity sensor A high pressure water jet or stiff not metal brush is suitable...

Page 15: ...ging Batteries The MIDAS SVX2 accepts 8 x C cells of either 1 5v alkaline or 3 6v Lithium type These cells are arranged in series so the output voltage is 12v alkaline or 28 8v Lithium Some example sc...

Page 16: ...the instrument should lie at the long end of the cage 4 1 1 Removing the End Cap Safely There is a small chance that pressure can build up inside the instrument housing To remove the end cap safely R...

Page 17: ...t of its groove under high pressure Whilst this may not immediately cause a leak it can damage the o ring to the extent that it will not properly seal on subsequent deployments Where an AE ring is fit...

Page 18: ...10 2 NC 3 NC 4 NC 5 NC 6 NC 7 NC 8 NC 9 NC 10 Link to Pin 1 5 2 3m Y Lead RS232 10 Way Male SubConn 1m Power Cable 4mm Banana Plugs 9 Way D Type Function 1 BLUE BLACK Power Ground 2 BROWN RED Power V...

Page 19: ...m Switched Y Lead RS485 10 Way Male SubConn SWITCH BOX 1m White Cable 4mm Banana Plugs 15 Way D Type 9 Way D Type Function 1 BLUE BLACK Power Ground 2 BROWN RED Power V 3 9 RS485 A 4 10 RS485 B 5 11 6...

Page 20: ...calibrate it against Chen Millero No we don t that would defeat the purpose While the seawater formulae Chen Millero Del Grosso etc have inherent errors that are accepted as being at best 0 25m s we u...

Page 21: ...stable Since the entire timing system is digital it is not subject to the drift that analogue components often exhibit over time The only part of the system that can drift with time is the timing crys...

Page 22: ...uts Zero Sometimes Why Is That The sensor outputs zero when it doesn t record the returning sound pulse within the expected time frame a time frame that equates to 1400 1600m s in terms of sound veloc...

Page 23: ...supplied that are not authorised by Valeport Ltd could void the CE compliance of the product and negate your authority to operate it This product has demonstrated CE compliance under conditions that...

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