YSI Pro 1020 Operating Procedure Download Page 4

IOP 019B.0 

Effective Date: 1/26/2017 

Page 4 of 8 

 

3. 

Install the 1001 pH sensor in port 1 as follows: 

a. 

If an old sensor is installed, remove it by twisting counter-clockwise. 

b. 

Apply a dab of grease to the new sensor o-rings. 

c. 

Unscrew the cap from the sensor storage bottle to relieve tension on the 

o-ring and then remove the bottle.  Replace the cap on the storage 

bottle with the full cap that came with the new sensor to prevent 

spilling the storage solution.  Pat the sensor dry with a kim wipe. 

d. 

Push the sensor into the connector on the cable until it is properly 

seated and only one o-ring is visible. Failure to properly seat the probe 

may result in damage. 

e. 

Twist the sensor clockwise to engage threads and finger tighten. Do not 

use a tool. This connection is waterproof.  Refer to the sensor 

installation sheet included with each sensor for detailed instructions. 

4. 

Install the 2003 DO sensor in the DO port as follows: 

a. 

If an old sensor is installed, remove it by twisting counter-clockwise. 

b. 

Apply a dab of grease to the new sensor o-rings. 

c. 

Grasp the sensor with one hand and the sensor connection end of the 

cable (bulkhead) in the other. 

d. 

Push the sensor into the connector on the cable until it is properly 

seated and only one o-ring is visible. Failure to properly seat the probe 

may result in damage. 

e. 

Twist the sensor clockwise to engage threads and finger tighten. Do not 

use a tool. This connection is waterproof.  Refer to the sensor 

installation sheet included with each sensor for detailed instructions. 

5. 

Install the 2003 DO sensor membrane as follows: 

a. 

Change membrane and oxygen probe electrolyte solution every 30 

days. 

b. 

Remove the metal sensor guard. 

3. 

If installing a membrane for the first time, remove the protective cap or 

remove the old membrane cap by unscrewing it with the probe upside 

down. 

c. 

Examine the gold cathode at the tip of the sensor and silver anode along 

the shaft of the sensor.  If either the silver anode is black in color or the 

gold cathode is dull (tarnished), the sensor needs maintenance or 

replacement. Refer to the Pro20 Instruction Manual, GENERAL 

MAINTENANCE, of polarographic sensor (Model # 605203). 

d. 

Rinse the sensor with de-ionized water. 

e. 

Fill a new membrane cap (5908 Kit - Yellow, 1.25 mil polyethylene) 

with oxygen probe electrolyte Solution. Do not touch the membrane 

surface. 

f. 

Tap the side of the membrane cap to release air bubbles. 

g. 

Thread the membrane cap onto the sensor with the probe upside down. 

h. 

Replace the metal sensor guard. 

IV. 

Calibration 

A. 

Temperature

 – All Pro10 cables have built-in temperature sensors. Temperature 

calibration is not required nor is it available. 

B. 

pH

 - The Pro10 pH sensors can be calibrated by performing a 1, 2 or 3-point calibration. 

A minimum of 2 point calibration is required for quality assurance purposes in the SLCP. 

Summary of Contents for Pro 1020

Page 1: ...bes pH 605101 DO 605203 MANUFACTURER Yellow Springs Instrument Co Inc YSI PRECAUTIONS POTENTIAL INTERFERENCES General Greatest accuracy is achieved if the actual samples to be measured are within 10 C of the calibration solutions Longer cable lengths introduce more error into the readings Dissolved oxygen Chlorine sulfur dioxide nitric oxide and nitrous oxide can affect readings by behaving like o...

Page 2: ...nsor and two sensor ports 3 Sensors two sensors are required to measure all of the water chemistry parameters indicated above Sensors are installed in the cable bulkhead ports indicated below to ensure proper function If measurement of one of the parameters is not required the corresponding sensor s may be removed and replaced with a sensor port plug a temperature sensor is permanently incorporate...

Page 3: ...ess the Power key to turn the instrument on The instrument will briefly display the splash screen with the YSI logo then go directly to the main run screen 2 Setup Sensors a Press Menu button b Dissolved oxygen sensor 1 Highlight DO Sensor Type Press enter 2 Highlight Polaro black and press enter to confirm 3 Highlight ESC exit press enter 4 Highlight DO Membrane type press enter 5 Highlight 1 25 ...

Page 4: ...lt in damage e Twist the sensor clockwise to engage threads and finger tighten Do not use a tool This connection is waterproof Refer to the sensor installation sheet included with each sensor for detailed instructions 5 Install the 2003 DO sensor membrane as follows a Change membrane and oxygen probe electrolyte solution every 30 days b Remove the metal sensor guard 3 If installing a membrane for ...

Page 5: ...reading pH mVs in buffer 4 should be 159 to 180 mV from the previous buffer 7 pH mV value pH mVs in buffer 10 should be 159 to 180 mV from the previous buffer 7 pH mV value If the mV readings are outside of these ranges clean the sensor as described in the maintenance section of this protocol 10 Press enter to complete the calibration or press Cal to cancel 11 Calibration Successful will display f...

Page 6: ...nd across the DO sensor membrane to obtain an accurate reading Be careful not to create a vortex which allows air bubbles to pass against the DO membrane G After at least 5 minutes and once the values stabilize record the measurement IIX Sensor storage A Short term storage The cable assembly is supplied with a sensor storage container or sleeve that attaches to the cable The container is used for ...

Page 7: ... 15 minutes in clean water Not DI water Soaking in DI water will shorten the life span of the probe containing a few drops of commercial dish washing liquid Gently clean the glass bulb and platinum button by rubbing with a cotton swab soaked in the cleaning solution Rinse the sensor in clean water wipe with a cotton swab saturated with clean water and then re rinse with clean water II Additional c...

Page 8: ...Jessica M Barber Digitally signed by JESSICA BARBER Date 2020 03 10 11 25 00 04 00 ...

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