Satlantic Suna User manual

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
SAT-DN-00627, ev. E, 2014-Dec-01
Satlantic LP
3481 North Marginal Road
Halifax, Nova Scotia B3K 5X8
anada
[phone]
[e-mail]
www.satlantic.com
O N F I D E N T I A L
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obligation to protect such information from unauthorized disclosure, use or duplication. Any disclosure, use or
duplication of this document in whole or in part, or of any of the information contained herein, for any purpose
other than the specific purpose for which it was disclosed is expressly prohibited except as Satlantic may
otherwise agree to in writing.
© 2013, Satlantic LP, All rights reserved

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
Table of Contents
1. About This Manual..............................................................................................5
2. Start-up Guides...................................................................................................6
2.1 Start-up Guide for Terminal Interface..........................................................6
2.2 Start-up Guide for Analog Output.................................................................7
3. The SUNA Sensor..............................................................................................8
3.1 Introduction and Background.......................................................................8
3.2 Specifications...............................................................................................8
3.2.1 Build Variants........................................................................................8
3.2.2 Electrical Specification........................................................................11
3.2.3 Performance Specifications................................................................13
3.3 Operating Principles...................................................................................15
3.3.1 Absorbance Spectroscopy..................................................................15
3.3.2 Nitrate oncentration..........................................................................16
3.3.3 Interferences and Mitigation................................................................16
4. Terminal Interface of the SUNA.......................................................................18
4.1 Sensor Operating States............................................................................18
4.2 ommand Line Interface............................................................................18
4.2.1 Status and Maintenance ommands.................................................19
4.2.2 File ommands...................................................................................20
4.2.3 onfiguration ommands...................................................................21
4.2.4 Polled Mode ommands.....................................................................35
4.2.5 APF Mode ommands........................................................................35
4.2.6 Analog Output.....................................................................................39
5. onfiguration Parameters in ontext...............................................................42
5.1 Build onfiguration.....................................................................................42
5.2 Input / Output onfiguration.......................................................................43
5.3 Data Acquisition onfiguration...................................................................44
5.3.1 ontinuous and Fixed-time Operating Mode......................................44
5.3.2 Periodic Operating Mode....................................................................44
5.3.3 Polled Operating Mode.......................................................................45
5.3.4 APF Operating Mode..........................................................................45
5.4 Data Processing onfiguration..................................................................46
5.4.1 Basic Data Processing........................................................................46
5.4.2 Special ase: Temperature-Salinity orrection.................................47
5.4.3 Special ase: Bromide Tracing..........................................................47
5.4.4 Special ase: Highly Absorbing Water...............................................47
6. Use Scenarios...................................................................................................49
6.1 Profiling.......................................................................................................49
6.1.1 Objectives and onsiderations...........................................................49
opyright © 2013, Satlantic LP, All rights reserved
2

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
6.1.2 Example..............................................................................................49
6.2 Moored........................................................................................................50
6.2.1 Objectives and onsiderations...........................................................50
6.2.2 Example..............................................................................................51
6.3 Free Floating Profiler..................................................................................52
6.3.1 Objectives and onsiderations...........................................................52
6.3.2 Example..............................................................................................52
7. SUNA Frame Definitions...................................................................................55
7.1 Frames with Synchronization Headers......................................................55
7.2 APF Frame.................................................................................................57
7.3 MBARI Frame.............................................................................................58
8. SUNA alibration File.......................................................................................59
8.1 File Name...................................................................................................59
8.2 File Format..................................................................................................59
8.3 File Interpretation........................................................................................59
9. Firmware Upgrade............................................................................................60
9.1 Firmware Upgrade Using SUNA om.........................................................60
9.2 Firmware Upgrade Using the Terminal Interface.......................................60
10. Troubleshooting..............................................................................................61
10.1 Sensor Is Not Responsive........................................................................61
10.2 Sensor Output Is Unexpected..................................................................62
11. Accessories.....................................................................................................63
11.1 Foul Guard................................................................................................63
11.2 Flow ell...................................................................................................63
11.3 Glider Mounting Package.........................................................................64
12. Maintenance...................................................................................................65
13. Safety And Hazards........................................................................................66
13.1 Pressure Hazard.......................................................................................66
13.2 Electrical Hazard......................................................................................66
13.3 Deployment and Recovery Safety............................................................66
14. Warranty.........................................................................................................67
14.1 Warranty Period.......................................................................................67
14.2 Restrictions...............................................................................................67
14.3 Provisions.................................................................................................67
14.4 Returns.....................................................................................................67
14.5 Liability......................................................................................................67
15. ontact Information........................................................................................68
16. Revision History..............................................................................................69
Index of Tables
Table 1: Sensor dimensions, basic options............................................................8
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3

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
Table 2: Optional features......................................................................................9
Table 3: SUNA dimensions depending on options.................................................9
Table 4: Power requirements................................................................................11
Table 5: Electrical pin assignments and descriptions..........................................12
Table 6: General performance specifications.......................................................13
Table 7: Accuracy specification for nitrate concentrations...................................13
Table 8: Precision specification for nitrate concentrations...................................14
Table 9: Limit of Detection and Limit of Quantification........................................14
Table 10: File access commands.........................................................................20
Table 11: Build configuration parameters.............................................................24
Table 12: Input / output configuration parameters...............................................27
Table 13: Data acquisition configuration parameters...........................................32
Table 14: Data processing configuration parameters..........................................35
Table 15: ombinations of data processing configuration parameters...............35
Table 16: Protocol for single-character APF commands.....................................38
Table 17: Protocol for multiple-character APF commands..................................39
Table 18: SUNA build variants.............................................................................43
Table 19: Data acquisition configuration parameters by operating mode...........47
Table 20: Data processing configuration parameters in use case context..........49
Table 21: onfiguration parameters illustrating a profiling deployment...............51
Table 22: onfiguration parameters illustrating a moored deployment...............53
Table 23: onfiguration parameters illustrating a float deployment.....................55
Table 24: Synchronization header frame definitions............................................57
Table 25: APF data frame definition.....................................................................58
Table 26: MBARI data frame definition................................................................59
Index of Illustrations
Illustration 1: Drawing of Deep SUNA..................................................................10
Illustration 2: Drawing of Deep SUNA with glider mounting option......................10
Illustration 3: SUNA Sub onn M BH8MNM bulkhead connector face view.......11
Illustration 4: Foul Guard......................................................................................64
Illustration 5: Flow ell..........................................................................................65
Illustration 6: Glider Mounting Package................................................................65
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4

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
1. About This Manual
1. About This Manual
The SUNA is a versatile sensor that can operate in diverse environments. It is adaptable
to a wide variety of deployment scenarios and supports multiple interfaces. This manual
provides guidance on how to properly deploy the sensor and on how to interact with it.
Before operating the sensor, understand all warnings and cautions cited in section 13.
Safety And Hazards.
Section 3. The SUNA Sensor gives performance specifications, sensor dimensions, and
explains the measurement technology.
The SUNA om software provides a graphical user interface to facilitate working with the
sensor. It supports sensor configuration, system testing, data management, and data
re-processing. SUNA om has a separate user manual, which is available on the
installation D and from within the SUNA om application via context sensitive help.
SUNA om does not address the requirements for all deployment scenarios, particularly
those related to integrated systems. For this reason, the complete firmware interface is
specified in Section 4. Terminal Interface of the SUNA. Explanations on how to start
when working in this environment are found in Section 2.1 Start-up Guide for Terminal
Interface.
The decision on how to configure the sensor is driven by the type of deployment.
Section 5. onfiguration Parameters in ontext provides an explanation of configuration
parameters. Section 6. Use Scenarios discusses configuration choices for some types
of deployments, and Section 7. SUNA Frame Definitions defines the output data.
omponents supporting the deployment of the SUNA are specified in Section 11.
Accessories.
Some deployments benefit from components that can be added to the SUNA.
The SUNA is a versatile sensor and research is ongoing to expand its performance and
use. Support of new features can be coded into future SUNA firmware versions. Section
9. Firmware Upgrade provides instructions on how to install such a new firmware.
Explanation and remediation for some unexpected behavior of the SUNA are addressed
in Section 10. Troubleshooting, and guidance on handling is provided in Section 12.
Maintenance.
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Deep SUNA Manual
For SUNA running firmware version 2.4 or later
2. Start-up Guides
2. Start-up Guides
Refer to the uick Start section of the SUNA om User manual available on your
installation D or bundled with the SUNA om software to test basic operation and
configuration. The following start-up guides will guide you through the process of
connecting to interfaces not available via SUNA om.
2.1 Start-up Guide for Terminal Interface
Terminal Emulator
The end user can interface with the SUNA by using terminal emulator software that can
connect to a serial com port. Some computers have pre-installed terminal emulators
(e.g., HyperTerm in some Microsoft Windows operating systems). Other terminal
emulators are, e.g., Putty, Tera Term, Bray's Terminal. This guide assumes that the
user is familiar with operating a terminal emulator.
Cable
In order to use the terminal interface, connect the sensor's serial cable to a com port of
the computer, and power the sensor with 8–18 VD , capable of providing a current of at
least 1 A.
Serial Interface
The SUNA communicates via serial port, using the RS-232 protocol at 8 bit, no parity, 1
stop bit and no flow control. The baud rate is factory set to 57600. If this baud rate does
not work, try the other possible baud rates (9600, 19200, 38400, 115200) or use
SUNA om to scan for the current baud rate.
Command Line
When power is applied to the SUNA, output and behavior depend on the current sensor
configuration. In all instances the user can bring the sensor to the command line by
repeatedly sending the $-character to the sensor.
The sensor indicates that it is accepting commands by outputting the SUNA> prompt. All
commands available at the command line are given in section 4.2 ommand Line
Interface.
An example command is selftest. It turns on all subsystems and briefly reports their
status.
Using the get opermode command will report the current operation mode. onsult
section 5.3 Data Acquisition onfiguration to understand the different operating modes,
and use the set opermode command if another operating mode is needed. Use the
get cfg command for the current sensor configuration.
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6

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
2. Start-up Guides
2.2 Start-up Guide for Analog Output
The SUNA has an optional analog output system.
The end user can determine if the sensor is equipped for analog output either via the
SUNA om software or the terminal interface (see section 2.1 Start-up Guide for
Terminal Interfaceand section 4. Terminal Interface of the SUNA).
In SUNA om the DA calibration function will be visible under the Advanced, Sensor
menu item if this function is available.
At the terminal interface, use the get analgbrd command. The response will be either
Available or Missing.
Interpreting Analog Output
When analog output is available, the sensor automatically generates output voltage and
current.
The sensor generates an output voltage in the 0 to 4.096 V and an output current in the
4 to 20 mA range. The lower range of the respective output interval corresponds to the
DA Minimum and the upper range of the interval corresponds to the DA Maximum
configuration parameter.
Both the DA minimum and DA maximum values can be modified, either via
SUNA om or via the terminal interface, to tune the output range to the expected nitrate
concentration range.
While the output voltage and current generated by the sensor are highly accurate,
losses may occur across cables that are used. For details on calibration and data
interpretation, see section 4.2.6 Analog Output.
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Deep SUNA Manual
For SUNA running firmware version 2.4 or later
3. The SUNA Sensor
3. The SUNA Sensor
3.1 Introduction and Background
The SUNA (Submersible Ultraviolet Nitrate Analyzer ) is a chemical-free nitrate sensor.
It is based on the ISUS (In Situ Ultraviolet Spectroscopy) technology developed at
MBARI (cf. Kenneth S. Johnson, Luke J. oletti, In situ ultraviolet spectrophotometry for
high resolution and long-term monitoring of nitrate, bromide and bisulfide in the ocean,
Deep-Sea Research I 49 (2002) 1291–1305).
3.2 Specifications
3.2.1 Build Variants
The SUNA housing is made from anodized aluminum. The housing is designed to
withstand depths of up to 2000 m.
Table 1: Sensor dimensions, basic options.
Dimension Basic ersion
Material Anodized Aluminum
Depth Rating 2000 m
Diameter 57 mm
Length
(without connector and anode)
555 mm
UV Deuterium Lamp 900 h lifetime
Path length 10 mm
Displacement 1384 cm³
Weight 1.8 kg
Electrical connector Sub onn M BH8MNM
Storage temperature –20 to +50
Operating temperature --2 to +35
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Deep SUNA Manual
For SUNA running firmware version 2.4 or later
3. The SUNA Sensor
Optional features and accessories are available for each of the two build variants.
Optional features change some sensor dimensions, as shown below.
Table 2: Optional features
Feature / Accessory Comment
alibration n/a: NO3 only
Normal: NO3 & seawater
Analog output Optional
Internal data logging Optional 2 GB (or larger) solid state
Scheduling Optional
USB connectivity Optional
Advanced processing APF interface and real time temperature-
salinity correction
Power control Relay
Passive fouling control opper fouling guard
Sampling control Flow through cell
Power supply Battery pack
Table 3: SUNA dimensions depending on options.
Options Length Displacement Weight
Deep SUNA 555 mm 1384 cm³ 1.8 kg
Deep SUNA, glider mounting 594 mm 1482 cm³ 1.9 kg
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9

Deep SUNA Manual
For SUNA running firmware version 2.4 or later
3. The SUNA Sensor
opyright © 2013, Satlantic LP, All rights reserved
10
Illustration 1: Drawing of Deep SUNA.
Illustration 2: Drawing of Deep SUNA with glider mounting option.