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Valeport miniSVS Operating Manual

Sound velocity sensors
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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 therefrom, must not be disclosed to any other person whatsoever
without the prior written consent of the Company.
Valeport Limited,
St Peters Quay,
Totnes,
Devon, TQ9 5EW,
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.
Copyright
2011
miniSVS Operating Manual
VALEPORT LIMITED
miniSVS
Sound Velocity Sensors
Operating Manual
0650808
J
July 2011
Page 1
Tel:
+44 (0)1803 869292
Fax:
+44 (0)1803 869293
e-mail:
sales@valeport.co.uk
Web:
www.valeport.co.uk
© Valeport Limited
0650808J.doc

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Summary of Contents for Valeport miniSVS

  • Page 1 Date: July 2011 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.

  • Page 2: Table Of Contents

    © Valeport Limited CHAPTER DESCRIPTION PAGE INTRODUCTION .................. 3 SPECIFICATIONS ................4 DATA REQUESTS AND OUTPUT FORMATS ........7 WIRING INFORMATION ..............14 APPENDIX 1: FAQ‟S ....................18 miniSVS Operating Manual Page 2 0650808J.doc...

  • Page 3: Introduction

    This configuration is used in the SoundBar 2 Digital Bar Checker, where a 100dBar range transducer is used, but the miniSVS may be fitted with a selection of different range transducers up to 6000dBar. The pressure option also uses a secondary pcb.

  • Page 4: Specifications

    Internal Co-axial connector to sensor (J3) 5 – way Harwin (power and comms) (J1) NB: J2 & J4 are for Valeport calibration and setup purposes – not for use by customer. External Standard is Subconn type MCBH6F (In titanium on titanium housings,...
  • Page 5 Power: Requires 8 – 29V DC input miniSVS draws approximately 17mA at 12vDC miniSVS with pressure draws approximately 24mA at 12vDC miniSVS with temperature draws approximately 20mA at 12vDC Output: Units are fitted with both RS232 and RS485 communications as standard. RS485 is enabled by grounding a pin in the communications lead (refer to Section 4).
  • Page 6 Enables a timing resolution of 1/100th of a nanosecond, equivalent to Sampling about 0.5mm/sec speed of sound on a 25mm path sensor, or Technique: 0.125mm/sec on a 100mm sensor. In practice, the output is restricted to 1mm/sec resolution. Linear sensor performance allows easy calibration. miniSVS Operating Manual Page 6 0650808J.doc...

  • Page 7: Data Requests And Output Formats

    M60<enter> Unit free runs at 60Hz 3.2 DATA FORMATS Data output is dependent on the parameters fitted to the miniSVS and the output format selected. Pressure data format is dependent on sensor range, and may be any of the following.
  • Page 8 In the examples below, pressure data is expressed as {pressure} and the temperature data is expressed as {temperature} 3.2.1 VALEPORT STANDARD FORMAT #082;off Sets data format to standard Valeport mode (SV in mm/s) SV only <space>1234567<cr><lf> where 1234567 is the speed of sound in mm/sec [i.e. 1234.567 m/sec] P + SV <space>{pressure}<space>1234567<cr><lf>...
  • Page 9 This format mimics the SBE output format, where:- TTT.TTTT is temperature value CC.CCCCC is conductivity value SSSS.SSSS is salinity value VVVVV.VVV is sound velocity in m/s In this format, the miniSVS will substitute zeroes for parameters it cannot measure. miniSVS Operating Manual Page 9 0650808J.doc...
  • Page 10 SSSS.SSSS is salinity value VVVVV.VVV is sound velocity in m/s In this format, the miniSVS will substitute zeroes for parameters it cannot measure. Leading zeroes are replaced with spaces NB. This output format is only available from firmware version 0650713B5 3.2.6...
  • Page 11 Sets units to Feet #019 Read Pressure Units 3.7 PRESSURE TARE COMMANDS #011;on Turns Tare mode on (i.e. unit subtracts fixed value from pressure data) #011;off Turns Tare mode off (i.e. unit outputs pressure as read) miniSVS Operating Manual Page 11 0650808J.doc...
  • Page 12 #009;{value} Input Tare value in units of 0.001dBar (i.e. 9000 = 9dBar) 3.8 SONARDYNE FORMAT FOR USE WITH THE COMPATT-5 #013;on Sets the unit to SONARDYNE format #013;off Returns the unit to normal operation miniSVS Operating Manual Page 12 0650808J.doc...
  • Page 13 #005;ON or OFF Turns Address mode ON or OFF #006 Returns ON or OFF for address mode #026;{xxxx} Sets data separator for Valeport mode. Default is <space>, separator may be up to 4 characters. miniSVS Operating Manual Page 13 0650808J.doc...

  • Page 14: Wiring Information

    Red Plug inside D type Link to Pin 1 for Orange RS485. N/C for RS232 6 (Link to pin Black, linked to Brown Blue Power GND Black Plug 1 in sensor) inside D type miniSVS Operating Manual Page 14 0650808J.doc...
  • Page 15 RS232 Rx (in to sensor)RS485A White Power & RS232 Ground 9 – 28vDC input Brown RS232 Tx (out of sensor)RS485B Orange Link to Pin 2 for RS485. N/C for RS232 Blue Screen NB: Do not connect screen. miniSVS Operating Manual Page 15 0650808J.doc...
  • Page 16 RS232 RX (in to sensor) View onto solder buckets Black -V (join to pin 1) Housed systems (Subconn OM8F connector, optional fit only): SVS Test Cable, 3m Valeport 8-Core Cable. Subconn 8 pin male line 9 Way D 4mm Banana Plugs (OM8F + OMBB)
  • Page 17 © Valeport Limited 139-IPS Extension Cable, 10m Valeport 8-Core Cable. Subconn 8 pin male line Subconn 8 pin female line (OM8F + OMBB + DLSB-F) Function (OM8M + OMBB + DLSB-M) RS232 RX (In to SVS) RS232 TX (Out of...

  • Page 18: Appendix 1: Faq"S

    This does raise an interesting point – if it is more important to you that your data is consistent with old data, rather than accurate in its own right, then you are possibly better off using a CTD (we would suggest a Valeport CTD, naturally). How is it so accurate? Several reasons.
  • Page 19 This will normally wash off during the up-cast. It can also happen if the sensor has been deployed for some time without cleaning, and there is significant growth on the sensor. miniSVS Operating Manual Page 19 0650808J.doc...