Teledyne Citadel CTD-ES User manual

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CTD-ES & CTD-ER
High Accuracy Real Time Conductivity, Temperature,
and Depth Profiler
Technical Manual
95F-6001-00 (February 2017)
© 2017 Teledyne RD Instruments, Inc. All rights reserved.

EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.

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Table of Contents
Introduction........................................................................................................................................................... 1
Maximum Operating Depth........................................................................................................................................................ 1
System Configuration Requirements.......................................................................................................................................... 2
Pull-Down Menus ....................................................................................................................................................................... 2
Customer Service........................................................................................................................................................................ 3
Main External Components ........................................................................................................................................................ 4
CTD-E Options............................................................................................................................................................................. 5
Specifications.............................................................................................................................................................................. 6
Outline Installation Drawings ..................................................................................................................................................... 8
Unpacking and Setting up the CTD-E.................................................................................................................... 10
Unpacking the CTD-E ................................................................................................................................................................ 10
Standard Items ................................................................................................................................................................... 10
Optional Items.................................................................................................................................................................... 10
Installing and Starting CTDAcq ................................................................................................................................................. 11
Installing CTDAcq ............................................................................................................................................................... 11
Starting CTDAcq ................................................................................................................................................................. 11
Communication Interfaces ....................................................................................................................................................... 12
RS-232 Interface................................................................................................................................................................. 12
RS-485 Interface................................................................................................................................................................. 12
Connecting the CTD-E to Your Computer ................................................................................................................................. 12
Connecting to the RS-232 Interface.......................................................................................................................................... 13
Connecting to the RS-485 Interface.......................................................................................................................................... 14
Changing the Serial Port ........................................................................................................................................................... 15
Checking and Configuring the CTD-E .................................................................................................................... 16
Checking the CTD-E .................................................................................................................................................................. 16
Configuring the CTD-E .............................................................................................................................................................. 17
Selecting the Parameters to be Output.............................................................................................................................. 19
Selecting the CTD-E Sampling Rate .................................................................................................................................... 20
Selecting Scaled Output ..................................................................................................................................................... 20
Selecting to Average Collected Data .................................................................................................................................. 20
Selecting to Output Data on the RS-232 Serial Port ........................................................................................................... 20
Setting the Local Time and Date ........................................................................................................................................ 21
Saving the CTD-E Configuration to a File .................................................................................................................................. 21
Configuring the CTD-E from a Saved File .................................................................................................................................. 22
Printing the Configuration File ................................................................................................................................................. 24
Acquiring, Displaying and Saving Data in Real Time ............................................................................................. 25
Real-Time Operating Modes..................................................................................................................................................... 25
Acquiring Real-Time Data in Profile Mode ......................................................................................................................... 25
Acquiring Real-Time Data in Towed Acquisition Mode ............................................................................................................ 28
Acquiring Real-Time Data in Run Continuous Mode ................................................................................................................ 30
Resetting and Firing a Water Sampler ...................................................................................................................................... 31
Setting up the Graphics Displays .............................................................................................................................................. 31
Setting up the Graph in the Cast Graphics Display............................................................................................................. 32
Zooming in and Out of the Cast Graph............................................................................................................................... 35
Listing the Data with the Cast Graph.................................................................................................................................. 35
Opening the Coordinates Window in the Cast Graphics Display........................................................................................ 36
Setting up the Graphs in the Towed Acquisition Graphics Display .................................................................................... 36
Displaying the Cast Graph in the Towed Acquisition Graphics Display .............................................................................. 38
Setting up the Cast Graph from the Towed Acquisition Graphics Display ......................................................................... 38
Opening the Coordinates Window in the Towed Acquisition Graphics Display................................................................. 39
Zooming in and Out of the Cast Graph in the Towed Acquisition Graphics Display........................................................... 39
Listing the Data in the Towed Acquisition Graphics Display .............................................................................................. 39
Scrolling Through the Pressure Graph Scans...................................................................................................................... 39
Previewing and Printing Graphs ............................................................................................................................................... 40

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Previewing and Printing the Cast Graph ............................................................................................................................ 40
Previewing and Printing the Pressure Graphs .................................................................................................................... 40
CTD-E Maintenance ............................................................................................................................................. 42
Recommended Maintenance ................................................................................................................................................... 42
Cleaning the CTD-E ................................................................................................................................................................... 43
Oil Fill Procedure and Capillary Tube Installation..................................................................................................................... 44
APPENDIX A: Measured and Calculated Parameters ............................................................................................ 47
Parameters Measured by the Instrument ................................................................................................................................ 47
Parameters Calculated by the Instrument................................................................................................................................ 47
Parameters Calculated by CTDAcq ........................................................................................................................................... 48
APPENDIX B: Changing the Baud Rate.................................................................................................................. 49
APPENDIX C: Connector and Test Cable Wiring.................................................................................................... 50
Bulkhead Connector Wiring...................................................................................................................................................... 51
Test Cable Wiring...................................................................................................................................................................... 52
APPENDIX D: Warranty, Liability and RMA Return Procedure.............................................................................. 53
Teledyne RD Instruments Limited Warranty ............................................................................................................................ 53
Liability ..................................................................................................................................................................................... 53
Returning CTDs to TRDI for Service ...................................................................................................................... 54
Domestic Shipments................................................................................................................................................................. 54
European Shipments ................................................................................................................................................................ 55
List of Figures
Figure 1. The Location of the CTD-ES Main External Components .............................................................. 4
Figure 2. CTD-ES Setup—with RS-232 Interface ........................................................................................ 13
Figure 3. CTD-ES Setup—with RS-485 Interface ........................................................................................ 14
Figure 4. The Configuration COM Setup Dialog Box .................................................................................. 15
Figure 5. The Main Window after Checking the CTD-ES............................................................................ 17
Figure 6. The Configure CTD-E Dialog Box................................................................................................. 18
Figure 7. The DC Channel Setup Dialog Box .............................................................................................. 20
Figure 8. The Save As Dialog Box for Configuration Files........................................................................... 22
Figure 9. The Open Dialog Box for Configuration Files .............................................................................. 23
Figure 10. Example CTD-E Configuration File Printout ................................................................................ 24
Figure 11. The CTDAcq Acquisition Window............................................................................................... 26
Figure 12. The Save As Dialog Box for Data Files......................................................................................... 27
Figure 13. The Cast Information Window ................................................................................................... 28
Figure 14. The CTDAcq Acquisition Window—Towed Acquisition............................................................... 29
Figure 15. The CTD-E Run Continuous Mode Window ................................................................................ 31
Figure 16. The Graph Setup Dialog Box for Data Acquisition....................................................................... 33
Figure 17. The Cast Graphics Display with Real-Time Plots of Parameter Data ........................................... 35
Figure 18. The Coordinates Window........................................................................................................... 36
Figure 19. The Pressure Graph 1 Setup Dialog Box for Towed Acquisition .................................................. 37
Figure 20. The Towed Acquisition Display with Four Real-Time Pressure Plots of Parameter Data............. 39
Figure 21. The Communications Window ................................................................................................... 49
Figure 22. The Configuration COM Setup Dialog Box .................................................................................. 50
Figure 23. Bulkhead Connector—Face View Female ................................................................................... 51
Figure 24. Pigtail Connector for Bulkhead Connector—Face View Male ..................................................... 52

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List of Tables
Table 1: Optional Items Available from TRDI ........................................................................................... 11
Table 2. Recommended Maintenance ..................................................................................................... 42
Table 2: Bulkhead Connector Components.............................................................................................. 50
Table 3: Computer Connections .............................................................................................................. 51
Table 4: Power Supply Connections......................................................................................................... 51
Table 5: Test Cable Wiring ....................................................................................................................... 52
Revision History
February 2017
•Added a recommended maintenance list to the maintenance chapter.
•Updated cleaning procedure.
•Updated Oil Fill Procedure and Capillary Tube Assembly.
•Updated Outline Installation Drawings.
•Updated TRDI website address to http://www.teledynemarine.com/rdi
June 2014
•Corrected how to request a Return Material Authorization (RMA)
•Updated fonts and styles
November 2011
•Updated outline installation drawing 96F-6004 to rev XB
•Updated conductivity specifications for accuracy and drift
•Corrected part number for oil fill capillary body assembly.
March 2012
•Updated Cleaning the CTD-E section
•Corrected part number for oil fill procedure syringe
•Changed “The water salinity in PSU-78 units” to “The seawater salinity in accordance to
PSS78 (Practical Salinity Scale 1978)”.

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NOTES

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CTD-ES and CTD-ER Technical Manual
Introduction
The Teledyne RD Instruments CTD-E (includes CTD-ES and CTD-ER models) is designed to
collect and output, in real time, high precision salinity data. The instrument can also interface
with optional sensors, such as light, pH, and Oxygen sensors, and output data from these sen-
sors along with the CTD data. The instrument measures conductivity using a highly stable in-
ductively coupled conductivity sensor calibrated over the oceanographic range of 0–70
mmho/cm (0–7.0 S/m). Temperature is measured with a high accuracy platinum resistance
thermometer mounted in a protective sheath. And pressure is measured using a fully tempera-
ture compensated precision micro-machined silicon transducer.
Any one or more of the measured parameters, along with the calculated parameters, which are
salinity and sound velocity, can be selected for output. The time and date on which the parame-
ters are output can also be included with each sample. Similarly, up to six DC input channels
can be selected for output of the optional sensor data. The measured and calculated parameter
data are output in calibrated ASCII physical units; the DC channels, as counts.
The CTD-E is configured using CTDAcq, a Microsoft Windows®based software program in-
cluded with the instrument. With CTDAcq you can configure the instrument and acquire, graph
and save to a file in real time the selected parameter data obtained by the instrument during a
cast. CTDAcq creates three files for each cast: a data file with extension .dat, a calibration file
with extension .c00 and a header file with extension .hdr. All the files are in ASCII format. The
three files can be input to CTDPost, a post processing software program available from TRDI
that provides a means of processing, displaying, graphing, printing, and saving processed CTD
data.
Maximum Operating Depth
IMPORTANT! The CTD-E is rated for a maximum operating depth that is based on the pres-
sure transducer selected. Consult the manufactured configuration sheet supplied with the in-
strument for its maximum operating depth. Do not exceed 125% of full scale when using or cali-
brating the instrument as permanent damage will occur. As with all high pressure instrumenta-
tion, observe caution while using the CTD-E or after exposing it to high pressures.

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System Configuration Requirements
TRDI software requires a Windows® compatible computer with the following specifications:
•Windows XP® or Windows 7®
•Pentium III 600 MHz class PC (higher recommended)
•1GB of RAM (2GB or more RAM recommended)
•50 MB Free Disk Space plus space for data files (A large, fast hard disk is recommended)
•One Serial Port (two or more High Speed UART Serial Port recommended)
•Minimum display resolution of 1024 x 768, 256 color (higher recommended)
•CD-ROM Drive
•Mouse or other pointing device
Pull-Down Menus
Like most programs, CTDAcq uses pull-down menus, which are opened from the menu bar in
the program’s Main window by pointing to the item with the mouse pointer and clicking the left
mouse button. When the menu is open, you can select an item from it in the same manner.
In many of the procedures presented in this manual, the ➤symbol is used to represent a se-
quence of menu item selections. For example, “Choose File ➤Open” means select File from the
menu bar, and then choose Open from File menu when it opens.

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Customer Service
TRDI welcomes your feedback. Please contact TRDI customer service to offer any comments or
suggestions or to request technical support. TRDI can be contacted using any of the following
means:
Teledyne RD Instruments
Teledyne RD Instruments Europe
14020 Stowe Drive
Poway, California 92064
2A Les Nertieres
5 Avenue Hector Pintus
06610 La Gaude, France
Phone [phone]
Phone [phone]
FAX [phone]
FAX [phone]
Sales – rdisal[email protected]
Sales – [e-mail]
Field Service – [e-mail]
Field Service – [email protected]
Client Services Administration – [e-mail]
Web: http://www.teledynemarine.com/rdi
For all your customer service needs including our emergency 24/7 technical support, call
[phone]
Self-Service Customer Portal
Use our online customer portal at http://www.teledynemarine.com/rdi and click on the Support link to
download manuals, firmware updates, software, or other Teledyne RDI documentation. Log into your
account and then click the Software/Firmware link or Documentation link.
The information, descriptions and illustrations in this manual are the property of Teledyne RD
Instruments (TRDI), and may be disclosed only to those persons or organizations specifically
authorized by TRDI. Duplication of any part of this manual is strictly prohibited unless author-
ized in writing by TRDI.
The Citadel logo is a registered trademark of Teledyne RD Instruments.
Delrin® is a registered trademark of E. I. du Pont de Nemours and Company.
©Copyright 2014 by Teledyne RD Instruments.

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Main External Components
The main external components of the CTD-ES are shown in Figure 1. A single bulkhead con-
nector on the lower end cap provides either RS-232 or RS-485 communications and inputs ex-
ternal power. The conductivity, temperature, and pressure sensors are located on the top end
cap. The CTD-ER model conductivity sensor and thermometer are at a right-angle from the
housing.
Figure 1. The Location of the CTD-ES Main External Components

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CTD-E Options
Depth Rating – CTD-E units are available with the following depth rating: 500 meter (Delrin
housing) or 7000 meter (Titanium housing).
Pressure Sensor – The pressure sensor is available in the following ranges (in meters): 20,
100, 200, 350, 500, 667, 1000, 2000, 3000 or 7000.
ES - The CTD-ES models have the conductivity sensor and temperature sensor straight
mounted.
ER – The CTD-ER models have the conductivity sensor and temperature sensor mounted at a
right-angle.
Communications Port – The bulk head connector can be configured for the following com-
munications: RS-232 or RS-485.
NOTE. CTD options must be defined at time of order.
CTD-E part numbers use a seven field code - 111-22-3-444444-5555-6666-7.
Field 1
Field 2
Field 3
Field 4
Field 5
Field 6
Field 7
Family
Conductivity / Temperature / Depth
Inductive Technology Type
ES = Straight Mount
ER = Right Angle Mount
External Sensor Interface
Bit 1 = DR
= Direct Reading
Bit 2 = Board Electronics Type
Bit 3 = Hardware Interface Type
Bit 4 = Communications Type
Bit 5 = Housing
Depth Rating
(meters)
Bit 6 = Stem Length
1 = CTD
-ER
2 = CTD
-ES
Field 5 = Depth Rating of
Conductivity
(meters)
Field 6 = Press Sensor
Option
(meters)
Field 7 = OEM Temperature Probe Mounting Position
CT
ES
0 = None
0= DR
0 = N/A
0 = N/A
0 = N/A
0= None
0 = No
Stem
0= No
Cond
0= None
0 = N/A
CTD
ER
I= N/A
1 = N/A
1 = GPO
1 = RS232
1= 500
1 = 1.037 in
500
20
I = N/A
2 = N/A
2 = RS485
2= 2000
2 = 1.75 in
7000
100
E = external
3= 7000
200
350
500
667
1000
2000
3000
7000
Example: CTD-ES-0-010112-500-500-E corresponds to a CTD- Ext Cond, Straight Mount, GPO
electronics, 500M Housing, RS232, Shallow Cond, PS 500M, Ext Temp.

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Specifications
Below are the general specifications for the CTD-E along with the specifications for the conduc-
tivity, temperature, and pressure sensors.
NOTE. These specifications are subject to change without notice.
General
Power requirements: 6–14 VDC @ 120 mA
Depth rating: 500 m standard, Delrin housing
7000 m optional, 64-AVL titanium housing
Sample rate: 1.83, 2.58, 3.03, 4.08, and 4.50 S/sec, selectable
Resolution: 18 bits
DC channels: 6 unipolar, 0–5.0 VDC, 1.22 mV
resolution (12 bits)
Communication interface: RS-232 or RS-485
Baud rate: 300, 1200, 9600, and 19,200
Data format: 8 data bits, 1 stop bit
Real time clock stability: ±12 ppm/year
Warm up: 3 seconds after power up
Conductivity
Sensor type: Inductive cell
Range: 0 to 70 mS/cm (0 to 7.0 S/m)
Typical Accuracy1: ±0.0030 mS/cm
Typical Drift2: ±0.001 mS/cm/month
Resolution: 0.0001 mS/cm
Response: 5.0 cm @ 1 m/sec flow
1@ 22°C & 35psu - Defined as the root sum of the squares (RSS) of endpoint non-linearity, repeatability error and
calibration uncertainty.
2over 1 year (Typical)

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Temperature
Sensor type: Platinum thermometer
Range: -2–32°C
Accuracy: ±0.002°C
Stability: ±0.0005°C/month
Resolution: 0.0001°C
Response: 150 msec
Pressure
Sensor type: Precision micro-machined silicon transducer
Range: Customer specified
Accuracy: ±0.02% of full scale, higher accuracies available
Stability: ±0.01% of full scale/month
Resolution: 0.001% of full scale
Response: 25 msec

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Outline Installation Drawings

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Unpacking and Setting up the CTD-E
Before deploying a CTD-E, it must be connected to an available serial port of a computer and
configured using CTDAcq. The default serial port for CTDAcq is COM1, and the default baud
rate is 9600 bits/sec; however, any serial port from COM1 to COM4 can be used, and baud rates
of 110–4800, 14400 and 19200 bits/sec are additionally available. This section provides in-
structions on how to unpack the CTD-E, how to connect the instrument to your computer, and
how to change the serial port that CTDAcq uses.
CAUTION. Changing the baud rate requires that both the baud rate of the CTD-E and the
computer’s serial port to which it is connected be changed. (See APPENDIX B: Changing the
Baud Rate for instructions on how to change the baud rate.)
Unpacking the CTD-E
Before unpacking the CTD-E, check the shipping container for signs of external damage. If the
container appears damaged, report the damage to TRDI and to the freight carrier. When un-
packing the CTD-E, inspect all the items for any apparent damage and verify that all the items
listed in the packing list are included in the shipment. Report any damage or missing items to
TRDI.
Standard Items
The following items are included with the shipment of a CTD-E:
•CTD-E instrument
•CTD Documentation and Software CD (includes CTDAcq software)
•Test cable
•Dummy connector and locking sleeve
•Pigtail
•Bottle brush (for cleaning the conductivity cells)
Optional Items
Optional items typically include the following:
•Power supply (6–14 VDC, 500 mA)
•Additional test cables
•Additional pigtails
•Male DB25 to female DB9 serial port adapter cable
•RS-485 Interface (includes converter box, power supply and DB25 to DB9 serial port
adapter cable)

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Most of these items are available from TRDI and are listed with their part numbers in Table 1
below. (See Customer Service for information on how to contact TRDI to order any of these
items).
Table 1: Optional Items Available from TRDI
ITEM TRDI PART NUMBER
Test Cable B240-291
RS-485 Interface MCTD2-485-KIT
Pigtail 2106-ILMC4M
Installing and Starting CTDAcq
The CTD-E is configured using the CTDAcq software which must be installed on the computer
to which the instrument will be connected.
Installing CTDAcq
To install CTDAcq:
1. Insert the CTD Documentation and Software CD into your CD-ROM drive. If the CD
browser does not appear, navigate to the drive containing the CD and double-click on
Launch.exe.
2. Click on the CTD Products button.
3. Click on the CTD-ES and CTD-ER button and then click on the CTDAcq Software but-
ton. This will start the software installation.
Starting CTDAcq
To start CTDAcq: 1
1. Select Start ➤Programs ➤RD Instruments.
The RD Instruments menu opens. 2
2. Choose CTDAcq. CTDAcq starts and the CTDAcq Main window opens.

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Communication Interfaces
The CTD-E includes an RS-232 serial interface for configuring and downloading data from the
instrument. The instrument was prewired from the factory for RS-232 or RS485 depending on
what was specified at the time of order. The serial tag on the instrument identifies which inter-
face is installed.
RS-232 Interface
The RS-232 serial interface requires that your computer provide true RS-232 data levels. Some
older laptop computers do not support the negative output voltages provided by the RS-232
standard and these computers may not work properly with the instrument.
RS-485 Interface
Systems ordered with an RS485 are capable only of RS485 communication and will require use
of an external RS485/RS232 converter for communication with a computer. A converter can be
ordered separately from TRDI or procured independently.
Connecting the CTD-E to Your Computer
The following items are required to connect a CTD-E to your computer:
•Test cable
•Power supply (6–14 VDC, 500 mA)
•An available serial port on the computer
•Male DB25 to female DB9 serial port adapter cable
•RS-485 Interface (includes converter box, power supply and DB25 to DB9 serial port
adapter cable)
NOTE. Although any serial port from COM1 to COM4 can be used, use COM1 if it is
available, as it is the default serial port setting of CTDAcq. If you use any other serial port,
you must select it in CTDAcq as described in Changing the Serial Port.

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Connecting to the RS-232 Interface
A CTD-E with an RS-232 interface is shown set up with a laptop computer in Figure 2.
To connect a CTD-E with an RS-232 interface to your computer:
1. Disconnect the dummy connector from the bulkhead connector on the instrument and con-
nect the test cable.
2. Connect the DB25 to DB9 serial port adapter cable to the DB25 connector of the test cable
and to the serial port on your computer.
3. Connect the red (+) banana plug of the test cable to the power supply output, and the black
(-) banana plug to the power supply common.
Figure 2. CTD-ES Setup—with RS-232 Interface

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Connecting to the RS-485 Interface
A CTD-E with an RS-485 interface is shown set up with a laptop computer in Figure 3.
To connect a CTD-E with an RS-485 interface to your computer: 1
1. Disconnect the dummy connector from the bulkhead connector on the instrument and con-
nect the test cable.
2. Connect the DB25 connector of the test cable to the DB25 input connector on the converter
box.
3. Connect the DB25 output connector of the converter box to the selected serial port on the
computer using the DB25 to DB9 serial port adapter cable.
4. Connect the power supply to the converter box.
5. Connect the banana plugs of the test cable to the red (+) and black (-) banana jacks on the
converter box.
6. Connect the power supply to a 100–240 VAC, 50–60 Hz power source.
Figure 3. CTD-ES Setup—with RS-485 Interface