YSI PRO20 User Manual

PRO20 USER MANUAL English Français Español Deutsch

CONNECTING THE CABLE The Pro20 is designed for field and laboratory use. It is compatible with two different cable options: 1) The field rugged cab

MEMBRANE INSTALLATION The dissolved oxygen sensor is shipped with a dry, protective red cap that will need to be removed before using. It is very imp

turned on, it will step through language, sensor, and membrane selections; see the First Power On section of this manual for more information. 8.0

Description of run screen box functions from left to right: Option Description Barometer reading Highlight and press enter to calibrate the barometer

After selecting a language, sensor, and membrane, the run screen will appear. The next time the instrument is powered up the run screen will appear i

LAST DIGIT SUPPRESSION (LDS) Last Digit Suppression (LDS) can be enabled or disabled by using the up or down arrow keys to highlight it and pressing e

EMERGENCY CONTRAST ADJUSTMENT If necessary, there is an alternate method of adjusting the contrast. To adjust the contrast, press and hold the menu

MEMBRANE TYPE Membrane Type sets the type of membrane used on the dissolved oxygen sensor; either 1.25 PE (Yellow) or 2.0 PE (blue). Use the up or do

AUTO STABLE Auto Stable utilizes preset values to indicate when a reading is stable. The preset values are adjustable in the System Setup menu. The

15 TEMPERATURE UNITS Highlight Temperature Units and press enter to open a submenu that will allow you to change the temperature units displayed in t

Item # 605597 Rev B Drawing # A605597 October 2008 ©2008 YSI Incorporated. The YSI logo is a registered trademark of YSI Incorpo

RESETTING THE SYSTEM SETUP MENU TO FACTORY DEFAULT To reset the Pro20 settings to factory default, press the down arrow key until the Reset - 4 box i

EXITING THE SYSTEM SETUP MENU To exit the System Setup menu, press the down arrow key until the ESC - Exit box is highlighted, then press enter to re

DISSOLVED OXYGEN The Pro20 can be easily calibrated with the press of one key by enabling One Touch Cal in the System Setup menu and following the One

Ensure the barometer reading is accurate. If necessary, perform a barometer calibration. Press and hold the Calibrate key for 3 seconds. The Pro20

If the calibration is unsuccessful, an error message will display on the screen. Press the Cal key to exit the calibration error message and return t

Allow the dissolved oxygen and temperature readings to stabilize. This may take 5 to 15 minutes, depending on the age of the instrument, type of sens

TAKING MEASUREMENTS Before taking measurements, be sure the instrument has been calibrated to ensure the most accurate readings. Turn the instrument

6.58 mg/L 95.9 % 24.2 °C Data set 01 saved  SAVE  DATA 23 The instrument will display ‘Memory Full’ if all 50 data sets hav

VIEWING DATA Once in data mode, use the up and down arrow keys to view saved data sets in sequential order or press enter to access the bottom functio

25 EXITING DATA MODE While in Data mode, press enter to access the bottom functions. Next, highlight the ESC-Exit box and press enter to return to t

CONTENTS Warranty ...1 Introduction...

26 CARE, MAINTENANCE, AND STORAGE This section describes the proper procedures for care, maintenance and storage of the sensors. The goal is to maxim

Using alcohol on o-rings may cause a loss of elasticity and may promote cracking. Do not use a sharp object to remove the o-rings. Damage to the o-ri

GENERAL MAINTENANCE – DO SENSOR PORT It is important that the entire sensor connector end be dry when installing, removing, or replacing. This will p

Fill a new membrane cap with O2 sensor solution that has been prepared according to the directions on the bottle. Be very careful not to touch the me

First dry the sensor tip completely with lens cleaning tissue. Wet a sanding disc and place it face up in the palm of you hand. Next, with your free

After completing the sanding procedure, repeatedly rinse the electrode with clean water and wipe with lens cleaning tissue to remove any grit left by

At the time the membrane cap is changed, YSI recommends that you rinse the anode (silver shaft of the sensor) with purified water and wipe with a clea

TROUBLESHOOTING ERROR MESSAGES Symptom Possible Solution Instrument will not calibrate; instrument displays “Calibration Over”, “Calibration Under”, o

34 Symptom Possible Solution Instrument readings are inaccurate. 1) Verify correct sensor/membrane type selection in the System Setup menu. 2) Ver

35 Temperature values display Over or Undr on run screen. 1) Sample temperature is less than -5º C or more than +55oC . Increase or decrease the

Calibration ...17 Temperature...

36 ACCESSORIES/PART NUMBERS Part Number Description 6050020 Pro20 60520-1, -4, -10, -20, or -30 1, 4, 10, 20, or 30-meter cable with temperature

37 DECLARATION OF CONFORMITY Manufacturer: YSI Incorporated 1725 Brannum Lane Yellow Springs, Ohio 45387 USA Product Name: Pro20 Model Numbers: Instr

38 RECYCLING YSI takes seriously the commitment to reducing our environmental footprint in our course of doing business. Even though materials reduct

39 CONTACT INFORMATION ORDERING & TECHNICAL SUPPORT Telephone: (800) 897-4151 (937) 767-7241 Monday through Friday, 8:00 AM to 5:00 PM

WARRANTY The YSI Pro20 Instrument is warranted for three (3) years from date of purchase by the end user against defects in materials and workmanship,

INTRODUCTION Thank you for purchasing the YSI Pro20, an instrument from the YSI Professional Series product family. The Pro20 features an impact resis

5) Place the battery cover on the back of the instrument and tighten the four screws. Do NOT over-tighten. The waterproof instrument case is s

Number Key Description 1 Calibrate Press and hold for 3 seconds to calibrate. Initiates One Touch

The Pro20 has two compatible sensors for use with a field cable: Polarographic – This sensor has a black sensor body and is engraved with the model n