Xylem YSI ProDSS User manual

USER MANUAL
ProDSS
USER MANUAL
DOCUMENT #626973-01REF

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Contents
Introduction 3
Safety Information 3
Precautionary Symbols 3
Product Components 3
Battery Use and Battery Life 4
Charging the Battery Pack 5
Battery Replacement 6
Connect the Handheld to the Cable Assembly 8
ProDSS Sensor Installation/Removal 9
Operation 13
Keypad and Navigation 13
Startup 14
Navigation 14
Main Display Description 15
System Menu 16
Sensor Menu 22
Calibration Menu 28
Files Menu 29
Taking Measurements 32
Calibration 33
Before Calibration 33
Calibration Setup (pH, ORP, ISE, Conductivity, Turbidity) 33
Conductivity 35
Barometer 36
Dissolved Oxygen 37
pH/ORP 39
Depth 41
Turbidity 42
Total Algae 44
ISEs: Ammonium, Nitrate, & Chloride 50

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Maintenance and Storage 57
ProDSS Handheld Instrument 58
Cable, Bulkhead, and Connectors 59
Sensor Guard 59
Depth Sensor Maintenance and Storage 60
Turbidity and Total Algae Sensors 61
Conductivity/Temperature Sensor 62
Dissolved Oxygen Sensor 63
pH - pH/ORP Sensors 67
ISE Sensors 69
ProDSS Driver and KorDSS Software Installation 73
Install the ProDSS Driver and KorDSS Software 74
Accessories 75
Ordering 75
ProDSS Handhelds 76
ProDSS 4 Port Cable Assemblies (No Sensors Included) 76
ProDSS Smart Sensors 76
Replacement Sensor Modules and ODO Sensor Caps 77
ProODO/ProOBOD Sensor and Cable Assemblies - DO/Temp Only 77
Calibration Standards 79
ProDSS Accessories 80
Safety and Support 81
Rechargeable Lithium-Ion Battery Pack Safety Warnings and Precautions 81
Service Information 83
Technical Support 83
Declaration of Conformity 84
Warranty 86
Appendix A - DO% Calibration Values 87
Appendix B - Oxygen Solubility Table 89

3
Introduction
Thank you for purchasing the YSI Professional Digital Sampling System (ProDSS).
ProDSS features include:
• Digital smart probes that are automatically recognized by the instrument when connected
• Waterproof (IP-67) case
• Long-life rechargeable lithium-ion battery pack
• Color display and backlit keypad
• User-selectable cable options
• USB connectivity
• Global Positioning System (GPS) (optional)
• Depth sensor (optional)
• Large memory with extensive site list capabilities
• Rugged enclosure with rubber over-molded case and miltary-spec (MS) connectors
• KorDSS data management software included with each instrument (Please see installation instructions on page 73)
Safety Information
Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all
precautionary statements. Failure to do so could result in serious injury to the operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this equipment in any
manner other than that specified in this manual.
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NOTICE: The manufacturer is not responsible for any damages due to misapplication or misuse of this
product including, without limitation, direct, incidental and consequential damages, and disclaims
such damages to the full extent permitted under applicable law. The user is solely responsible to
identify critical application risks and install appropriate mechanisms to protect processes during a
possible equipment malfunction.
NOTICE: Indicates a situation which, if not avoided, may cause damage to the instrument
Precautionary Symbols
Product Components
Carefully unpack the instrument and accessories and inspect for damage. If any parts or materials are damaged,
contact YSI Customer Service at 800-897-4151 ([phone]) or the authorized YSI distributor from whom the
instrument was purchased.
NOTE: Information that requires special emphasis
WARNING: Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death
or serious injury
CAUTION: Indicates a potentially hazardous situation that may result in minor or moderate injury

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Introduction
Battery Use and Battery Life
The ProDSS uses a rechargeable lithium-ion (Li-Ion) battery pack as a power source. The battery comes pre-installed in
the ProDSS and does not need to be replaced until the battery charge capacity is deemed unacceptable by the user.
The battery is shipped at less than 50% full capacity and charging the battery is not required before first use.
Battery life depends on use, enabled parameters, LCD brightness, and GPS use. As with all lithium-ion batteries, battery
life will decline over time and use. This decay is typical and should be expected.
A new ProDSS battery is expected to last for the following durations (25 °C (77 °F), auto sampling, GPS on, keypad
backlight off):
• ProDSS instrument only - 48 hours
• ProDSS with fully loaded 4 port cable assembly and 25% LCD brightness - 20 hours
• ProDSS with fully loaded 4 port cable assembly and 100% (Default) LCD brightness - 14 hours
To increase battery life, enable manual sampling mode (Sampling on page 20). Manual sampling mode powers the
sensor/s on to take a measurement and then powers down to conserve battery life. Battery life may also depend on
the battery charging practices used. For maximum battery life, keep the battery 40% to 80% charged. Also, a larger
discharge (e.g. to 50%) is better than a small discharge (e.g. to 90%) between recharges.

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Introduction
Charging the Battery Pack
A USB cable is included with the ProDSS to charge the instrument battery pack and connect the instrument to a PC.
The instrument battery pack can be charged from the AC power adapter, directly from a computer USB connection or
from an external, portable USB battery pack (sold separately, see ProDSS accessories on Page 80).
Plug the USB connector into the AC power adapter, computer USB connector or external USB battery pack, then plug
the micro USB connector into the ProDSS instrument (Figure 1).
NOTE: The ProDSS internal charge controller only allows the battery pack to be charged if the
temperature is between 0 and 45 °C (32 and 113 °F).
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WARNING: Charge the battery pack in an open area away from flammable materials, liquids, and surfaces.
Read Rechargeable Lithium-Ion battery pack safety warnings and precautions on page 81.
The ProDSS will charge faster when plugged into an AC outlet for charging rather than a PC’s USB port. For the
instrument to recognize that it is using AC power, you must start charging the ProDSS while on. After the instrument
recognizes it is being charged, it can be turned off to finish charging.
When using the AC adapter, it takes approximately 14 hours to charge the ProDSS battery when the instrument is
turned off during the charge. The amount of time required to completely charge the battery pack when the ProDSS is
initially turned on during the charge is approximately 9 hours.
Figure 1 Connecting the ProDSS to AC power supply

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Introduction
Battery Replacement
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NOTE: The battery pack is pre-installed in the ProDSS instrument.
WARNING: Do not charge or handle a battery pack that is hot to the touch. Failure to follow the safety
warnings and precautions can result in personal injury and/or instrument damage not covered
under warranty. Read Rechargeable Lithium-Ion battery pack safety warnings and precautions on
page 81.
1. Remove the battery pack cover by unscrewing (counter-clockwise) the four screws with a flat or Phillips head
screwdriver (Figure 2 on page 7).
NOTE: The retaining screws are captured into the battery pack cover and are not removable.
2. If replacing an existing battery pack, remove the Li-Ion battery pack and battery pack gasket/cradle. With two
fingers, grasp the battery pack connector and pull the connector straight up to disconnect and remove.
NOTE: Properly dispose of the old battery pack (See “Battery Disposal” on page 82).
NOTE: A new gasket/cradle is included with a new battery pack to prevent water leaking into the instrument case.
When replacing the battery pack, use the new battery pack gasket/cradle supplied with the replacement
battery pack.
3. Inspect the replacement battery pack and battery pack gasket/cradle for damage. Contact YSI customer service
if the new battery pack and/or replacement gasket/cradle is damaged.
4. Correctly align and seat the battery pack gasket/cradle and battery pack into the instrument.
5. Align the battery pack connector wire terminals with the three instrument pins, then connect the battery pack to
the instrument.
NOTICE: Make sure that the three wire terminal connectors and three instrument pins are correctly aligned
before connecting the battery pack connector. Incorrect installation can damage the battery pack
connectors or instrument pins.
6. Install the battery pack cover, then hand tighten the cover screws with a screwdriver. DO NOT use any power
tools. Make sure that the cover sealing surface is correctly aligned and free of any contamination or damage.
NOTICE: The handheld is designed IP67 without the battery cover; therefore, the battery cover screws
only need tightened enough to secure it into place. The battery cover does NOT need to make a
compressed seal. Overtightening the cover screws can damage the battery cover and the handheld.

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Introduction
Figure 2 Battery replacement
*Color shown for reference
1 Battery pack cover 4 Instrument pin connectors
2 Battery pack 5 Battery pack gasket/cradle*
3 Battery pack connector 6 Battery pack gasket/cradle installed
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3
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Introduction
Connect the Handheld to the Cable Assembly
The ProDSS cable connectors are keyed for positive mating and to prevent connector damage (Figure 3). The ProDSS
instrument retains its IP-67 rating when the cable is disconnected. However, the connectors are not wet-mateable and
should be clean and dry before connecting.
Align the keys on the cable assembly connector with the slots on the instrument connector. Push together firmly, then
twist the outer ring clockwise until it locks into place.
112223
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Figure 3 Keyed connectors
1 Handheld female connector 3 Keyed area of connectors
2 Cable male connector

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Introduction
ProDSS Sensor Installation/Removal
ProDSS cable assemblies that feature user-replaceable sensors include 4 port cables with (626910 and 626911) and
without (626909) a built-in depth sensor. This section pertains to these cable assemblies.
Other ProDSS cable assemblies, like the ProDSS ODO/CT (627150), ProODO (626250) and ProOBOD (626400 and
626401), feature integral (i.e. built-in) sensors. Therefore, sensors on these cable assemblies cannot be replaced by the
user. A complete list of cable options can be found in the Accessories section.
NOTICE: The ProDSS bulkhead and sensor connectors are not wet-mateable. Make sure that the sensor and
bulkhead connectors are clean and dry before sensor installation.
NOTE: Sensor ports on the bulkhead (4 port cables only) are numbered (Figure 4). If multiple sensors of the
same type are installed, the sensor port number will be added to the Run screen display to clarify the
measurement value of each sensor.
Sensor Installation
The ports on the ProDSS bulkhead are universal; therefore, you can install any sensor into any port.
NOTE: A conductivity/temperature sensor (626902) must be installed in a 4 port ProDSS cable for accurate
measurement of all parameters except turbidity and TSS. All sensors, including conductivity/temperature,
must be ordered separately.
1. Remove the port cover shipped with ProDSS cables. This cover fits over the bulkhead to protect the sensor
connectors from contamination and damage during shipment. This cover can be kept for long-term cable
storage.
2. Inspect the bulkhead port for contamination. If the port is dirty or wet, clean it with compressed air.
3. Apply a thin coat of o-ring lubricant to the sensor o-rings. Wipe off excess o-ring grease with a lint-free cloth.
Figure 4 Sensor installation
1 Sensor
2 Port plug
3 Bulkhead (4 port pictured)
4 Sensor retaining nut
5 Sensor installation/removal tool

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Introduction
4. Carefully align the sensor and bulkhead connectors by inserting the sensor into the port then gently rotating the
sensor until the connectors align. Once aligned, push the sensor toward the bulkhead until the sensor seats in
the port.
5. Carefully finger-tighten the retaining nut clockwise.
NOTICE: If any resistance is felt, loosen the retaining nut completely to prevent cross-threading. Incorrect
installation may cause damage to the sensor or bulkhead that is not covered by the warranty.
6. Use the sensor installation/removal tool to tighten the retaining nut clockwise until snug, about a 1/4 to 1/2
additional turn of the retaining nut.
NOTICE: Do not over-tighten the retaining nut. Over-tightening can cause damage to the sensor or bulkhead
not covered by the warranty.
Sensor Removal
To remove a sensor, insert the sensor installation/removal tool into the retaining nut, then rotate the retaining nut
counterclockwise to loosen. After the retaining nut has been completely unscrewed from the bulkhead, pull the sensor
straight out of the port and place it on a clean surface.
NOTICE: Install a port plug if not reinstalling a sensor in the exposed port. Exposure to water can cause
damage or corrosion to the bulkhead connectors not covered by the warranty.
Port plugs
To protect the bulkhead connectors from damage, install a port plug into any port without an installed sensor. Port
plugs and a tube of o-ring lubricant are included in the maintenance kit that ships with all 4 port ProDSS cables. Refer
to the Accessories section if an additional maintenance kit is needed.
NOTICE: Do not submerge the bulkhead without a sensor or port plug installed in all ports.
Installation
1. Apply a thin coat of o-ring lubricant to the o-rings on the plug port.
2. Remove any excess lubricant from the o-rings and port plug with a lint-free cloth.
3. Insert the port plug into the empty port and press until firmly seated.
4. Finger-tighten the port plug clockwise to install. If necessary, use the sensor installation tool to make sure that
the plug is fully seated into the port.
NOTICE: The o-rings will not be visible if a port plug is correctly installed. Do not over-tighten the port plug.
Over-tightening can cause damage to the port plug or bulkhead not covered by the warranty.
Figure 5 Sensor port plugs and port numbering (4 port cables)

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Introduction
Sensor Guard and Weight Installation
1. Carefully slide the sensor guard over the bulkhead and attached sensors/port plugs. Push the sensor guard
toward the bulkhead until the sensor guard threads align with the bulkhead threads.
2. Carefully finger-tighten the sensor guard clockwise.
NOTICE: If any resistance is felt, loosen the sensor guard completely to prevent cross-threading. Incorrect
installation may cause damage to the sensor guard or bulkhead that is not covered by the warranty.
NOTICE: Do not submerge the bulkhead without a sensor or port plug installed in all ports.
Figure 6 Sensor guard and weight installation on a 4 port cable assembly
1 Sensor guard 4 Depth sensor (if equipped)
2 Bulkhead 5 Weight
3 Bulkhead threads
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Introduction
Sensor Guard Weights
To help stabilize the sensors when profiling at deeper depths, a 1 lb. sensor guard weight is supplied with 4 port
assemblies 10 meters and longer. To attach the weight, carefully hand-tighten it clockwise on to the bottom of the
sensor guard (Figure 6 on page 11).
NOTICE: If any resistance is felt, loosen the sensor guard weight completely to prevent cross-threading.
Incorrect installation may cause damage to the sensor guard.
The bottom of the weight is threaded so that additional weights can be added if needed. See ProDSS accessories on
page 80.
NOTE: Do not have any weights installed on the sensor guard when calibrating using the calibration cup.

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Operation
Keypad and Navigation
Figure 7 Keypad description
1 System: Opens the system menu. Use to adjust
system settings
7 ON/OFF: Turn on or turn off the instrument
2 Exit/Escape key: Exits tot he Run screen. When in an
alpha/numeric entry screen, returns to previous menu
8 Right arrow key: Navigate right in an alpha/
numeric entry screen. On the Run screen, push to
show graphical representations of the displayed
measurements. Push the right or left arrow to return to
the Run screen. In the View Data screen, push to view
additional parameters in the data set.
3 Left arrow key: Navigate left in an alpha/numeric
entry screen. Push to return to previous menu in all
screens except alpha/numeric entry. On the Run
screen, push to show graphical representations of the
displayed measurements. Push the right or left arrow
to return to the Run screen
9 Backlight: Turns the keypad backlight on or off for
use in low light conditions
4 Help: Shows context sensitive help 10 File: Opens the file menu. Use to view logged data
and GLP files, backup data to a USB stick, and delete
data
5 Up/Down arrow keys: Scroll through menus or enter
numbers and letters
11 Calibrate: Opens the calibration menu. Use to
calibrate all parameters except temperature
6 Enter key: Push to confirm selections. On the Run
screen, push to log a single data point or start
continuous data logging
12 Probe: Opens the sensor menu. Use to setup sensors,
change the measurements shown on the Run screen,
select the sensor averaging mode, and turn on/off
Auto Stable and GPS
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Esc
Cal
ENTER
System Probe Calibration File

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Operation
Startup
Push the key to turn on the handheld. If the handheld does not turn on, make sure that the battery pack is correctly
installed and charged. Push and hold the key for 1.5 seconds to turn the handheld off.
Navigation
The ProDSS contains menus to change user-defined options, functions, and parameters. Use the arrow keys
( and ) to highlight different options within menus and sub-menus, then push the ENTER key to select the option.
Push the key to return to the previous menu.
NOTE: When in an alpha/numeric screen, the key is for alpha/numeric navigation only. Push the
Esc
key to
return to the previous menu.
Push the
Esc
key to return to the Run screen. To enable or disable an option, highlight the option, then push the ENTER
key. Enabled functions appear as a circle with a dot or a box with a check mark . Disabled functions appear as a
circle only or an empty box .
Alpha/Numeric Entry
When required, an alpha or alpha/numeric entry screen will be shown. When finished entering information, highlight
ENTER, then push the ENTER key to save the entry (Figure 8).
NOTE: When in an alpha/numeric screen, the key is for alpha/numeric navigation only. Push the
Esc
key to
return to the previous menu.
Figure 8 Alpha/numeric and numeric entry screens
1 User entry field 4 Enter selection
2 Delete entire entry 5 Upper/lowercase
3 Backspace
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Operation
Main Display Description
The main display (Run screen) shows the current measurements as defined in the Sensor Display menu (“Sensor
Display” on page 25). If more measurements are selected than can be displayed on the Run screen, a scroll bar will be
shown. Use the and arrow keys to view the additional measurements (Figure 9).
The message area shows status messages, error messages, and information about selected functions.
Figure 9 Main display example
1 Log or sampling (update measurements) prompt on
Run screen (single or continuous)
6 Batter charge %
2 Current screen/menu 7USB/PC connection indicator
3 Date/Time 8Scroll bar
4GPS signal indicator 9Message area
5Battery charging indicator 10 Displayed measurements
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Operation
System Menu
Push the System key to view and adjust instrument settings. Highlight a sub-menu then push the ENTER key to view
the sub-menu options (Figure 10).
Pre-defined or user-selected options are noted within brackets ([]). See “Alpha/numeric entry” on page 14.
Use the System meu to:
• Set the date and time (“Date/Time” on page 17)
• Change the user-defined Good Laboratory Practices (GLP) options
(“GLP menu” on page 17)
• Change the instrument language setting (“Language” on page 19)
• Change logging options (“Logging” on page 19)
• Change sampling options (“Sampling” on page 20)
• Set the handheld auto-shutoff time (“Auto-Shutoff” on page 20)
• Change the radix point (Radix Point on page 21)
• Set the backlight mode (Backlight on page 21)
• View the software version (Software version on page 21)
• View the handheld serial number (“Serial #” on page 21)
• View and adjust the Unit ID (Unit ID on page 22)
• View the sensor specific information (“Sensor info” on page 22)
• Adjust the display brightness (“Brightness” on page 22)
Figure 10 System menu

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Operation
Figure 11 Date/Time
Figure 12 GLP Options
Date/Time
→Date/Time
For accurate logging and GLP data, correctly set the date and time op-
tions (Figure 11). Select any of the following options to set the Date/Time
in the ProDSS.
Date/Time options:
• Set YY/MM/DD, MM/DD/YY, DD/MM/YY or YY/DD/MM date format
• Set the correct date
• Select 12 or 24 hour time format
• Set the correct time
GLP Options
→GLP →Options
User ID, Probe ID, or User Field #1 or 2 can be user-defined for positive
GLP file identification of.
• The person calibrating the instrument
• The sensor/cable serial number used during calibration (or other,
user-defined Probe ID)
• Other user-specific identification (User Field #1 and #2) (Figure 12)
NOTE: User Field can be used to describe the condition of the
probe. For example, new sensor or new ODO cap.
GLP Menu
Detailed sensor calibration information is stored in the Good Laboratory Practice (GLP) file for later review.
One GLP file is used to store all calibration records. The instrument’s internal memory can save up to 400 individual
calibration records. After 400 records, the instrument will overwrite previously stored calibration records, starting with
the oldest.
To prevent the permanent loss of GLP records, periodically download the GLP file to a computer using the KorDSS
software.
NOTE: Information included in each GLP record can be seen on page 30.

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Operation
Figure 13 Re-Cal Prompts
Figure 14 GLP Security
Re-Cal Prompts
→GLP →Options →Re-Cal Prompts
Re-Cal Prompts provide a reminder to recalibrate a probe in the
user-defined number of days (Figure 13).
The Re-Cal prompt will be displayed in the message area of the main
display when the set time has elapsed (Figure 9 on page 15).
Select the desired sensor Re-Cal prompt, then enter the desired number
of days before the Re-Cal prompt occurs.
Set the sensor value to zero (0) days (default) to turn off Re-Cal prompts.
NOTE: When enabled and the set amount of time since the last
calibration has passed, the Re-Cal prompt will be shown
when the instrument is turned on.
GLP Security
→GLP →Security
The Calibration menu can be password protected to prevent accidental
or unauthorized sensor calibration (Figure 14).
1. From the GLP menu, select Security, then enter the default
password “ysi123”.
2. Select Set Password [ ] and change the default password.
3. Select the Protect Cal check box to password protect the
Calibration menu.
NOTE: Write down and keep the password in a safe place. Contact
YSI Technical Support if you lose the password (“Technical
support” on page 83).