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1

I N T R O D U C T I O N

Thank you for purchasing the YSI Pro20/Pro20i, an instrument from the 
YSI 

Professional Series

 product family. The Pro20 features user-replaceable 

cables, while the Pro20i features an integral (i.e. built-in) cable. Sensors 
are user-replaceable on Pro20 and Pro20i cables.

The Pro20/Pro20i features an impact resistant and waterproof (IP-
67) case, backlit display, user-selectable sensor options, internal 
barometer, and a rugged, rubber over-mold case.

The Pro20/Pro20i provides valuable instructions and prompts near 
the bottom of the display that will guide you through operation and 
use. However, reading the entire manual is recommended for a better 
understanding of the Pro20/Pro20i’s features.

G E T T I N G   S T A R T E D

INITIAL INSPECTION

Carefully unpack the instrument and accessories and inspect for 
damage. Compare received parts with items on the packing list. If 
any parts or materials are damaged or missing, contact YSI Customer 
Service at 800-897-4151 (+1 937 767-7241) or the authorized YSI 
distributor from whom the instrument was purchased.

BATTERY INSTALLATION

The instrument requires 2 alkaline C-cell batteries. Under normal 
conditions, the average battery life is

 

400 hours at room temperature 

without using the back light. A battery symbol 

 will blink in 

the lower, left corner of the display to indicate low batteries when 
approximately 1 hour of battery life remains. 

To install or replace the batteries:

1.  Turn the instrument off and flip over to view the battery cover 

on the back.

2.  Unscrew the four captive battery cover screws.  

The Pro20/Pro20i can not communicate to a PC via a Pro Plus 
communications saddle. Connecting the Pro20/Pro20i to a 
communication saddle may cause erratic instrument behavior. 

i

Содержание PRO20

Страница 1: ...USER MANUAL English Pro20 Pro20i User Manual DOCUMENT 605597 ...

Страница 2: ...Item 605597 Rev C September 2016 For the latest version of this manual visit ysi com 2016 YSI Incorporated The YSI logo is a registered trademarks of YSI Incorporated ...

Страница 3: ...cklight 7 Powering Off 7 Navigation 7 First Power On 8 System Setup Menu 9 DO Local 9 Last Digit Suppression LDS 10 One Touch Calibration One Touch Cal 11 Audio 11 Contrast 11 Sensor Type 12 Membrane Type 12 Auto Stable 13 DO Units 14 Temperature Units 14 Pressure Units 15 Language 15 Auto Shutoff 15 Resetting the System Setup Menu to Factory Default 15 Exiting The System Setup Menu 16 ...

Страница 4: ...wing and Erasing Saved Data Data Mode 23 Principles of Operation 25 Care Maintenance and Storage 26 General Maintenance 26 Sensor Maintenance 28 Sensor Storage 32 Troubleshooting 33 Specifications 35 Accessories Part Numbers 35 Declaration of Conformity 37 Recycling 38 Battery Disposal 38 Contact Information 39 Ordering and Technical Support 39 Service Information 39 ...

Страница 5: ...7 767 7241 800 897 4151 or visit www ysi com Support tab Send the product and proof of purchase transportation prepaid to the Authorized Service Center selected by YSI Repair or replacement will be made and the product returned transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days from date of repair or replacement LI...

Страница 6: ...ii PRODUCT COVERED BY THIS WARRANTY IN NO EVENT SHALL YSI BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECTIVE PRODUCT COVERED BY THIS WARRANTY ...

Страница 7: ... unpack the instrument and accessories and inspect for damage Compare received parts with items on the packing list If any parts or materials are damaged or missing contact YSI Customer Service at 800 897 4151 1 937 767 7241 or the authorized YSI distributor from whom the instrument was purchased BATTERY INSTALLATION The instrument requires 2 alkaline C cell batteries Under normal conditions the a...

Страница 8: ...o not over tighten Figure 1 Pro20 Pro20i with battery cover removed Notice battery symbols indicating polarities The waterproof instrument case is sealed at the factory and is not to be opened except by factory authorized service technicians Do not attempt to separate the two halves of the instrument case as this may damage the instrument break the waterproof seal and will void the warranty i KEY ...

Страница 9: ...backlight on Press a third time to turn backlight off Press and hold for 3 seconds to turn instrument off 4 Menu Use to enter the System Setup menu from the run screen 5 Enter Press to confirm entries and selections 6 Down Arrow Use to navigate through menus to navigate through box options at the bottom of the Run screen and to decrease numerical inputs CONNECTING THE SENSOR AND CABLE CONNECTING T...

Страница 10: ...instrument the Sensor Type must be configured for the sensor being installed connected Failure to do this may result in damage not covered under warranty The instrument will step you through this setup the first time it is powered on See the System Setup menu section of this manual for instructions on configuring the Sensor Type after the first power on i 1 Ensure both the sensor connector and sen...

Страница 11: ... a 300 ml BOD bottle To connect the cable align the keys on the cable connector to the slots on the instrument connector Push together firmly and then twist the outer ring until it locks into place figure 4 This connection is water proof Figure 4 Note the keyed connector When disconnected the sensor and cable s sensor connectors are NOT water proof Do not submerge the cable without a sensor instal...

Страница 12: ...r deionized water Fill the cap membrane 3 4 full of electrolyte solution then tap the cap with a finger to release any trapped air Be careful not to touch the membrane portion of the cap Thread the membrane cap onto the sensor moderately tight Do not use a tool It s typical for some of the electrolyte solution to spill over It is best to allow the new cap to remain on a new sensor overnight before...

Страница 13: ...gating the Run Screen When in the Run screen the up and down arrow keys will move the highlighted box along the bottom options Once a box is highlighted press enter to access the highlighted option Description of Run screen box functions from left to right Option Description Barometer Highlight and press enter to calibrate the instrument s internal barometer Salinity compensation value Highlight a...

Страница 14: ...ne options Use the up or down arrow keys to highlight the appropriate language sensor and membrane then press enter to confirm Figures 6 7 and 8 The Sensor Type must be configured for the sensor installed Failure to do this may result in damage not covered under warranty If an incorrect option is selected it may be changed in the System Setup menu Figure 6 Language selection Select Sensor Type Pol...

Страница 15: ... keys to highlight it and then pressing enter An X in the box next to DO Local indicates it is enabled Figure 9 Figure 9 DO Local is enabled When DO Local is enabled DO values will be expressed as L on the Run screen DO Local allows for localized saturation measurements but does not affect the mg L readings When enabled the DO L calibration value is always 100 regardless of the altitude or baromet...

Страница 16: ...37 mmHg barometric pressure roughly 841 ft above sea level the instrument would calibrate to 737 760 x 100 96 97 When taking measurements at the same location 737 mmHg in a 20 C fresh water sample that is completely air saturated the instrument would read DO value 96 97 DO mg L value 8 81 mg L 9 091 x 9697 2 Hence the mg L readings are unaffected by DO Local 1 Value from oxygen solubility table Ap...

Страница 17: ... X in the box next to Audio When Audio is enabled the Pro20 Pro20i will beep twice to indicate stability when Auto Stable is enabled The instrument will also beep when a key is pressed When Audio is disabled the Pro20 Pro20i will not beep CONTRAST To adjust the display Contrast use the up or down arrow keys to highlight Contrast then press enter Next use the up or down arrow keys to adjust the con...

Страница 18: ...patible sensors for use with a field cable Polarographic This sensor has a black sensor body and is engraved with the model number 2003 Polarographic will be abbreviated Polaro in the instrument menu Galvanic This sensor has a grey sensor body and is engraved with the model number 2002 In terms of physical configuration membrane material and general performance YSI Pro Series galvanic sensors are ...

Страница 19: ...ce than traditional FEP membranes 5909 Blue 2 0 mil polyethylene PE Less flow dependence than 1 25 mil membrane but a little slower response Selecting a Dissolved Oxygen Membrane Membrane Type Flow Dependence After 4 Minutes Required Sample Movement Typical Response Time T 95 5913 5908 Yellow 25 6 inches second 8 seconds 5914 5909 Blue 18 3 inches second 17 seconds AUTO STABLE Auto Stable utilizes...

Страница 20: ...he ESC Exit box and press enter to save any changes and to close the DO units submenu There are three options for displaying dissolved oxygen mg L will show DO readings in milligrams per liter on a scale from 0 to 50 mg L ppm parts per million is equivalent to mg L and will show the DO reading on a scale from 0 to 50 ppm will show DO readings in a saturation from 0 to 500 This value will be expres...

Страница 21: ...ed in the System Setup menu AUTO SHUTOFF Auto Shutoff allows you to set the instrument to turn off automatically after a period of time after the last button press In the setup menu use the up or down arrow keys to highlight Auto Shutoff then press enter to open the submenu Press enter while the minute field is highlighted to make it adjustable Next use the up or down arrow keys to adjust the shut...

Страница 22: ... minutes Auto Stable Off 0 0 Change and 10 secs LDS Last Digit Suppression Off Audio On Language English Dissolved Oxygen Calibration Reset to factory default 100 for enabled membrane and sensor Barometer Calibration Reset to factory default It is recommended to perform a barometer and dissolved oxygen calibration after performing a reset EXITING THE SYSTEM SETUP MENU To exit the System Setup menu...

Страница 23: ...and can be used as is for barometer calibration Weather service readings are usually not true i e they are corrected to sea level and therefore cannot be used until they are uncorrected An approximate formula for this uncorrection is True BP Corrected BP 2 5 Local Altitude in ft above sea level 100 Although the barometer range is 400 0 to 999 9 mmHg you will be unable to adjust the value across th...

Страница 24: ...sors should not be immersed in water If the calibration storage sleeve is not available substitute with a chamber of 100 relative humidity vented to the atmosphere not completely sealed Power the instrument on and wait approximately 5 to 15 minutes for the storage chamber to become completely saturated and to allow the sensor to stabilize if using a Polarographic sensor If using a Galvanic sensor ...

Страница 25: ...or the chamber to become completely saturated Auto Shutoff time should be disabled or set to at least 20 minutes see System Setup menu for more information on adjusting the Auto Shutoff Ensure the barometer reading is accurate If necessary perform a barometer calibration Press and hold the Calibrate key for 3 seconds Highlight and press enter The Pro20 Pro20i will display the current DO and temper...

Страница 26: ...rate key for 3 seconds Local will be automatically highlighted press enter The Pro20 Pro20i will display the current DO and temperature readings along with the calibration value The calibration value will always be 100 for DO Local Wait at least 3 seconds then once the DO and temperature readings are stable press enter to complete the calibration Or press the Cal key to cancel the calibration Cali...

Страница 27: ...ill display on the screen Press the Cal key to exit the calibration error message and return to the run screen See the Troubleshooting guide for possible solutions SALINITY COMPENSATION CALIBRATION The Pro20 Pro20i uses a user inputted salinity value in ppt parts per thousands to compensate dissolved oxygen mg L values The salinity compensation value entered in the Pro20 Pro20i should be the salin...

Страница 28: ...ement Once the values plateau and stabilize you may record the measurement and or store the data set The dissolved oxygen reading will drop over time if stirring is ceased If placing the DO sensor into a stream or fast flowing waters it is best to place it perpendicular to the flow and NOT facing into the flow If using the DO sensor in an aeration tank basin it is helpful to make sure bubbles do n...

Страница 29: ...strument behavior i SAVING DATA From the run screen use the up or down arrow keys to highlight the Save box and press enter to save the current readings The instrument will indicate the data set is saved and display the saved data set s number Figure 11 Figure 11 data set saved The instrument will display Memory Full if all 50 data sets have been saved and you attempt to save another data set VIEW...

Страница 30: ...set that is displayed will be indicated by the data set number 01 through 50 Erasing Data While viewing saved data press the enter key to access the function boxes at the bottom of the display Next use the up or down arrow keys to highlight Erase then press enter The instrument will give you the option to erase one or all data sets Figure 13 Figure 13 Erase data mode Use the up or down arrow key t...

Страница 31: ... the anode and a circular gold cathode embedded in the end The galvanic sensor consists of a zinc anode and silver cathode The polarographic sensor requires an applied voltage for operation while the galvanic sensor electrode potentials are dissimilar enough to reduce oxygen with applied voltage Both sensors have a thin semi permeable membrane stretched over the sensor which isolates the electrode...

Страница 32: ...t and or sensor ports of the instrument If water enters these areas it can severely damage the battery terminals or sensor ports causing loss of battery power false readings and corrosion to the sensors or battery terminals Therefore when the battery compartment lid is removed the o ring that provides the seal should be carefully inspected for contamination e g debris grit etc and cleaned if neces...

Страница 33: ...ugh the grease while pressing the fingers together to place a very light covering of grease to the o ring Place the o ring into its groove making sure that it does not twist or roll Use the previously grease coated finger to once again lightly go over the mating surface of the o ring Do not over grease the o rings The excess grease may collect grit particles that can compromise the seal Excess gre...

Страница 34: ...The DO sensor Polarographic and Galvanic is shipped with a dry protective red cap that will need to be removed before using Remove the protective cap or used membrane cap and replace it with a new membrane cap following these instructions Remove the sensor guard to access the sensor Remove the protective red cap or unscrew and remove any old membrane cap by holding the sensor when unscrewing the m...

Страница 35: ...sor shows unstable readings or other sensor related symptoms Figure 11 DO sensor with membrane removed During membrane changes examine the gold cathode at the tip of the sensor and the silver anode along the shaft of the sensor If either the silver anode is black in color or the gold cathode is dull the sensor may need resurfaced using the fine sanding disks included in the membrane kit Do not san...

Страница 36: ...cal Support or the Authorized dealer where you purchased the instrument Silver Anode After extended use a thick layer of Silver Chloride AgCl builds up on the silver anode reducing the sensitivity of the sensor The anode must be cleaned to remove this layer and restore proper performance The cleaning can be chemical and or mechanical Chemical cleaning Remove the membrane cap and rinse the sensor w...

Страница 37: ...e contact YSI Technical Support or the Authorized dealer where you purchased the instrument Galvanic Sensors Model 605202 We recommend that the Sodium Chloride NaCl solution and the membrane cap be changed at least once every 60 days during regular use In addition the NaCl solution and membrane should be changed if a bubbles are visible under the membrane b significant deposits of dried electrolyt...

Страница 38: ...WARNING DO NOT PERFORM THE POLAROGRAPHIC CHEMICAL CLEANING ON A GALVANIC SENSOR i If this procedure is unsuccessful as indicated by improper sensor performance contact YSI Technical Support or the Authorized Dealer where you purchased the instrument SENSOR STORAGE SHORT TERM STORAGE The instrument is supplied with a grey calibration storage sleeve that slides over the probe guard The sleeve is use...

Страница 39: ... Setup menu 3 Calibration sleeve may not be 100 water saturated ensure sponge is moisten 4 Ensure adequate sample movement if performing mg L or ppm calibration 5 Allow sufficient stabilization time for dissolved oxygen and temperature AND wait at least 3 seconds before confirming a DO or DO Local calibration 6 Replace membrane and electrolyte 7 Clean sensor electrodes 8 Return system for service ...

Страница 40: ...system for service Dissolved Oxygen values display Over or Undr on run screen 1 Verify correct sensor membrane type selection in the System Setup menu 2 If using a polarographic sensor allow instrument to warm up for 5 15 minutes before use 3 Sample O2 concentration is more than 50 mg L or 500 or less than 0 02 mg L or 0 3 4 Verify barometer and salinity settings are correct and recalibrate 5 Veri...

Страница 41: ...ng Barometer 400 0 to 999 9 mmHg 0 1 mmHg 5 mmHg within 5 C of calibration temperature Automatic Dissolved Oxygen Temperature Compensation Range is 5 to 45 ºC Available barometer units include mmHg inHg mbars psi or KPa For operating temperatures below 10 C or above 40 C the barometer must be recalibrated to maintain accuracy specification A C C E S S O R I E S PA R T N U M B E R S Part Number Des...

Страница 42: ...elt clip for clipping instrument onto belt 063517 Ultra clamp for instrument for clamping instrument to lab counter or other surface 063507 Tripod for instrument 601205 Grease o ring 603062 Cable management kit included with all 4 10 20 and 30 meter cables 605978 Cable weight 4 9 oz stackable 603070 Shoulder strap 605306 5908 Cap membrane kit 1 25 mil PE 6 each includes electrolyte yellow cap Used...

Страница 43: ...0 Sensors 605202 605203 607203 Conforms to the following Directives EMC 2014 30 EU RoHS 2011 65 EU WEEE 2012 19 EU Harmonized Standards EN6136 1 2013 EN61000 3 2 2014 EN61000 3 3 2013 Supplementary Information All performance met the operation criteria as follows 1 ESD IEC 61000 4 2 2001 2 Radiated Immunity IEC 61000 4 3 2006 3 Electrical Fast Transient EFT IEC 61000 4 4 2004 Corr 1 2006 Corr 2 20...

Страница 44: ...rds are sent to facilities that process and reclaim as much material for recycling as possible Plastics enter a material recycling process and are not incinerated or sent to landfills Batteries are removed and sent to specialist battery recyclers for dedicated metals When the time comes for you to recycle follow the easy steps as outlined at www ysi com recycle BATTERY DISPOSAL The Pro20 Pro20i is...

Страница 45: ...e number 3 Purchase Order or Credit Card number 4 Model Number or brief description 5 Billing and shipping addresses 6 Quantity SERVICE INFORMATION YSI has authorized service centers throughout the United States and Internationally For the nearest service center information please visit www ysi com and click Support or contact YSI Technical Support directly at 800 897 4151 1 937 767 7241 When retu...

Страница 46: ...Item 605597 Rev C September 2016 2016 YSI Incorporated ...

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