IOP 019B.0
Effective Date: 1/26/2017
Page 2 of 8
pH
–
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Do not measure pH in metal containers.
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Water currents in streams can cause unstable readings.
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pH measurements will drift if the sample is not stirred.
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Do not expose the meter or probe to freezing temperatures.
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High humidity and cold temperatures may affect meter operation.
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Be sure that the temperature sensor is immersed in the sample.
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Buffers degrade from exposure to light - change daily
SAFETY
No special precautions
PROCEDURES:
I.
Configuration – The YSI Pro 1020 instrument is capable of simultaneous measurement of multiple
water chemistry parameters including temperature, pH, and dissolved oxygen.
A.
Instrument overview
1.
Meter – The YSI Pro 1020 handheld meter includes internal hardware and
software for calculation of parameters, a display screen, and a keypad for data
entry and screen navigation. The meter includes an internal barometer.
2.
Cable – The instrument cable connects the meter to the sensors. The SLCP uses
the 6051020 cable with an integrated temperature sensor 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 incorporated into the cable end
b.
pH sensor (605101) installed in port 1
c.
polarographic dissolved oxygen sensor (605203) installed in port 2
II.
Pro 1020 Key Pad Functions
Key
Description
☼
Power and Backlight -
Press once to turn instrument on. Press a second
time to turn backlight on. Press a third time to turn backlight off. Press and
hold for 3 seconds to turn instrument off.
Down Arrow -
Use to navigate through menus, to navigate through box
options at the bottom of the Run screen and to decrease numerical inputs.
ENTER
Enter -
Press to confirm selections, including alpha/numeric key
selections.
Up Arrow -
Use to navigate through menus, to navigate through box
options along the bottom of the Run screen and to increase numerical
inputs.
Cal
Calibrate -
Press and hold for 3 seconds to calibrate. Opens Calibrate
menu from the Run screen.
