Valeport uvSVX Manual de usuario
uvSVX Operating Manual
Document ID
MANUAL-857569191-10
Date:
September 2020
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.
© 2020 Valeport Ltd
Valeport Ltd
St Peter's Quay
Totnes TQ9 5EW
United Kingdom
Phone:
email:
Web:
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
Contents
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© 2020 –Valeport Ltd
Contents
1 Introduction ........................................................................................................................................... 1
2 Sensors................................................................................................................................................... 2
2.1 Sound Velocity Measurement......................................................................................................... 2
2.2 Temperature ................................................................................................................................... 2
2.3 Pressure .......................................................................................................................................... 2
2.3.1 Interchangeable Pressure Sensor Modules............................................................................ 3
2.4 Calculated Parameters.................................................................................................................... 5
2.4.1 Calculated Conductivity ......................................................................................................... 5
2.4.2 Calculated Salinity.................................................................................................................. 5
2.4.3 Calculated Density ................................................................................................................. 5
3 Physical Characteristics .......................................................................................................................... 6
3.1 Materials......................................................................................................................................... 6
3.2 Dimensions ..................................................................................................................................... 6
4 Communications .................................................................................................................................... 7
4.1 Serial Comms - RS 232 and RS485................................................................................................... 7
4.2 Ethernet .......................................................................................................................................... 8
4.2.1 Setting up Ethernet Connectivity........................................................................................... 8
4.2.2 Operation with Datalog x2................................................................................................... 11
4.3 uvSVX Communications Setup ...................................................................................................... 12
5 Setting Up the uvSVX ........................................................................................................................... 13
5.1 Start / Stop.................................................................................................................................... 13
5.1.1 Output Last Measured Reading ........................................................................................... 13
5.2 Information #Codes ...................................................................................................................... 14
5.3 Sampling Modes............................................................................................................................ 15
5.4 Pressure Tare ................................................................................................................................ 15
5.5 Error Flag....................................................................................................................................... 16
5.6 Warning Message ......................................................................................................................... 16
5.7 Pressure | Depth Units.................................................................................................................. 17
5.8 Set Latitude................................................................................................................................... 17
5.9 DASH Formula............................................................................................................................... 18
5.10 User Calibration ............................................................................................................................ 18
6 Data Output Formats ........................................................................................................................... 19
6.1 Data String Formatting.................................................................................................................. 19
6.2 CSV Format ................................................................................................................................... 20
6.3 Valeport NMEA ($PVSVX).............................................................................................................. 21
6.4 Data String #1................................................................................................................................ 22
6.5 Modbus RTU ................................................................................................................................. 22
7 Electrical............................................................................................................................................... 23
7.1 Power uvSVX................................................................................................................................. 23
7.2 Power uvSVXe ............................................................................................................................... 23
7.3 Wiring Information ....................................................................................................................... 23
Contents
© 2020 –Valeport Ltd
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8 Software............................................................................................................................................... 24
8.1 Setup Using DataLog X2 ................................................................................................................ 24
8.1.1 Interface to the uvSVX ......................................................................................................... 24
8.1.2 Configure the uvSVXminiIPS 2 ............................................................................................. 25
8.2 Setup Using the SetUp App ........................................................................................................... 31
8.2.1 Interface to the uvSVX ......................................................................................................... 31
8.2.2 Configure the Instrument .................................................................................................... 32
9 Care & Maintenance ............................................................................................................................ 36
9.1 Calibration..................................................................................................................................... 37
10 Ordering and Part Numbers ................................................................................................................. 38
11 EU Declaration of Conformity - CE Marking ......................................................................................... 39
11.1 uvSVX ............................................................................................................................................ 40
11.2 Interchangeable Pressure Module ................................................................................................ 41
uvSVX Operating Manual: MANUAL-857569191-10
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© 2020 –Valeport Ltd
1Introduction
Aimed primarily at the underwater vehicle market, the uvSVX is a compact direct reading instrument that
outputs a selectable, fixed data string at up to 60Hz of Sound Velocity, Temperature, Depth and optionally,
Salinity and Density calculated with Valeport’s proprietary DASH formula. High accuracy data is assured
with the added bonus of Valeport’s unique interchangeable pressure module that allows customers to
maximise operational specific depth requirements. This innovative pressure module, with integral
calibration, can be changed in a couple of minutes without opening the instrument.
There are two communication options of the uvSVX, RS232 / RS485 and Ethernet
To be used in a variety of subsea applications ROVs, construction survey, monitoring and positioning
operations, one of the key development drivers was to provide a cost-effective alternative to the use of
resonant quartz pressure sensors. Using the very latest technology in temperature compensated piezo-
resistive transducers, the uvSVX offers several advantages over resonant quartz sensors, with similar
performance - cost, maintenance and operationally specific pressure ratings.
Valeport's DASH equations are included in the uvSVX, as standard and provide a real-time water density
output.
•Interchangeable Pressure Sensor Module
-Pressure ranges from 10 to 600Bar (approx 100m to 6 000m water)
-Titanium diaphragm pressure sensor
▪No external diaphragms, oil reservoir or oil-filled tubes
-Long term calibration stability witha 2 year recommended recalibration cycle
•Sound Sound Speed
-Valeport's industry standard 25mm baseline, Digital Time of Flight sound speed sensor
•Temperature
-fast response PRT
•Titanium housing
•RS232 or RS485 (addressable) data output
•ASCII and Modbus RTU output protocols
•Choice of calibrated data output format at a sampling rate of up to 60Hz
•TEOS 10 seawater properties of water computation for depth calculation
uvSVX - Sound Speed, Pressure and Temperature
for underwater vehicles
Sensors
© 2020 –Valeport Ltd
Page | 2
2Sensors
2.1 Sound Velocity Measurement
Utilising Valeport's latest design for the world's most accurate sound velocity sensor, each measurement is
made using a single pulse of sound travelling over a precisely known distance, so is independent of the
inherent calculation errors present in CTD calculated data. Valeport's unique digital signal processing
technique virtually eliminates signal noise and gives an almost instantaneous response; the digital
measurement is also entirely linear, giving predictable performance under all conditions.
Range:
1375 - 1900m/s
Resolution:
0.001m/s
Accuracy:
±0.020m/s
2.2 Temperature
The uvSVX is fitted with an accurate, fast response Platinum Resistance Thermometer (PRT) temperature
sensor.
Type:
PRT
Range:
-5°C to +35°C
Accuracy:
±0.01°C
Resolution:
0.001°C
2.3 Pressure
The uvSVX is fitted with a high accuracy, 0.01% of full scale, temperature compensated piezo-resistive
pressure transducer.
The Pressure Module is interchangeable
Type:
Strain Gauge
Range:
individual modules
10, 30, 50, 100, 200, 300, 400 or 600 Bar
1 bar is approximately equal to 10m depth
Resolution:
0.001% of full range
Accuracy:
±0.01% or full range
Response Time:
1 milliseconds
uvSVX Operating Manual: MANUAL-857569191-10
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© 2020 –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 change in dry lab conditions but if this is not possible every effort must
be made to keep water out of the module socket. If water does get into the socket it must be dried before
a module is fitted to protect the connector from corrosion.
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 module housing in the
socket. If the Pressure Module is misaligned it will not tighten smoothly and should be removed and
turned by 180°.
Sensors
© 2020 –Valeport Ltd
Page | 4
Engage the screw cap into the threads of the socket and then use the tool to tighten the Pressure Module
into place. The module should be screwed down until the shoulder of the black screw cap is in line with the
shoulder of the titanium end-cap as shown below:
Inside the transit case an additional transit case is provided for the Pressure module to allow it to be
returned to Valeport for calibration without the need to send the whole instrument.
uvSVX Operating Manual: MANUAL-857569191-10
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© 2020 –Valeport Ltd
2.4 Calculated Parameters
From directly measured sound velocity, temperature and pressure, the uvSVX calculates Conductivity,
Salinity and Density using a proprietary Valeport algorithm developed from extensive laboratory and
fieldwork data sets.
2.4.1 Calculated Conductivity
Accuracy:
±0.05 mS/cm
Resolution:
0.001 mS/cm
2.4.2 Calculated Salinity
Accuracy:
±0.05 PSU
Resolution:
0.001 PSU
2.4.3 Calculated Density
Accuracy:
±0.05 kg/m3
Resolution:
0.001 kg/m3
Physical Characteristics
© 2020 –Valeport Ltd
Page | 6
3Physical Characteristics
3.1 Materials
Housing & Bulkhead:
Titanium
Screw Cap:
Acetal
Pressure Transducer
Diaphragm
Titanium
Connector:
uvSVX: Standard is SubConn type MCBH6F (titanium)
uvSVXe: Standard is SubConn type DBH13F (titanium)
Alternatives may be supplied on request
Weight:
<1.75kg (in air)
3.2 Dimensions
uvSVX Operating Manual: MANUAL-857569191-10
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© 2020 –Valeport Ltd
4Communications
Control of the uvSVX is achieved through the use of “# codes”, as described below.
All commands must be “sent” by pressing the Enter key
with the exception of the single ‘#’ character required to enter set up mode
4.1 Serial Comms - RS 232 and RS485
The uvSVX is fitted with both RS232 and RS485 communications as standard. RS485 is enabled by
grounding a pin in the communications lead (refer to Wiring Section).
Protocol is 8 data bits, 1 stop bit, no parity, no flow control.
RS232 comms have been tested over 200m of cable. Successful operation over this distance will depend on
the quality of cable. Contact Valeport for more information.
Baud rate is factory set to 115200. User may choose between 2400, 4800, 9600, 19200, 38400, 57600,
115200 and 230400.
Fast data rates and longer data string outputs may not be possible with low baud rates
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