YSI 5200A
85
YSI 5200A
84
ORP solution value varies with temperature. Note the current temperature
reading of the solution and enter the solution value that corresponds to
that temperature. The calibration solution should include a temperature
chart that contains solution values based on the temperature. Only whole
numbers can be entered.
11. Press
to confirm the entered value OR press
to abort the
calibration and return to calibration menu without saving any changes.
12. Press
to save calibration and return to Run Screen.
13. Remove the calibration storage cup from probe assembly.
14. Rinse the sensor in tap or purified water before continuing to calibrate
other sensors or reinstalling the probe guard.
pH
Menus → Calibration→ pH
The pH sensor - figure 4.5, page 77 - can be calibrated using either a one or
two-point calibration. For the highest accuracy, YSI recommends performing a
two-point calibration. Use two pH buffers that cover the pH range of the system
being monitored. For example, if the pH of the system water varies between 5.5
and 7, perform a 2-point calibration using pH 7 and pH 4.
Directions to Calibrate pH Sensor
1. Connect probe assembly - page 60.
2. Read Getting Ready to Calibrate - page 76.
3. Fill the calibration cup with
30 ml
of pH buffer 7 solution.
4. Carefully immerse the sensor into the solution.
5. Gently rotate and/or move the probe module up and down to remove any
bubbles from the pH or pH/ORP sensor.
6. Screw the calibration/storage cup on to the threaded end of the probe
module.
7. Enter pH calibration menu:
Menus → Calibration→ pH→2 Point Cal (recommended)
OR
Menus → Calibration→ pH→1 Point Cal
8. Allow at least one minute for temperature equilibration.
Configuring the 5200A
9. After one minute, verify that the pH and temperature values show no
significant change for approximately 30 seconds. Then, press
to
continue the calibration OR press
to escape calibration and return
to calibration menu without saving.
10.
Use the arrow keys to select numbers on the numeric keypad,
enter the pH buffer value. Press
to confirm each number selection.
11. Press
to continue OR press
to escape the calibration and
return to calibration menu without saving.
12. For one-point calibration skip to step
18.
13. Rinse the calibration cup and sensors, then fill the calibration cup with
the 2nd buffer solution for a 2-point calibration.
14. Replace probe in calibration cup and let settle for at least 30 seconds.
15. After one minute, verify the pH and temperature values show no significant
change for approximately 30 seconds. Then, press
to continue the
calibration OR press
to escape calibration and return to calibration
menu without saving any of the calibration.
16.
Enter the value of the 2nd buffer solution. Press
to confirm
each number selection.
17. Press
to continue OR press
to escape the calibration and
return to calibration menu without saving.
18. Press
to save calibration and return to Run Screen.
19. Remove calibration storage cup from probe assembly.
20. Rinse the sensor in tap or purified water before continuing to calibrate
other sensors or reinstalling the probe guard.
Configuring the 5200A
