Calibration Procedure - Hach Clean & CAL pH Mount Manual Del Usuario

Figure 9 Fill the flow cell (pH 4 buffer example)

6.2 Calibration procedure

Make sure to clean the sensor before each calibration. Refer to
to the steps that follow to calibrate the sensor. Refer to
Note: The sensor can connect to different controllers, e.g., sc200 controller. For more calibration instructions or to
change calibration options, refer to the user manual for the controller that connects to the sensor.
1. Complete the steps in
2. Calibrate the sensor with the pH 4 buffer solution:
a. Close the flow cell valve.
b. Push and hold the pH 4 buffer valve until the buffer solution fills the flow cell. Refer to
on page 20.
c. Select the 2-point buffer calibration option on the controller. Set the pH 4 buffer calibration
point.
d. Open the flow cell valve to drain the buffer solution.
3. Flush the sensor with the rinse water:
a. Open the rinse valve to fully flush the sensor with the rinse water.
b. Close the rinse valve.
c. Close the flow cell valve.
d. Open the rinse valve until the flow cell fills with the rinse water.
e. Close the rinse valve.
f. Open the flow cell valve to drain the rinse water.
20 English
Clean the sensor on page 18.
Clean the sensor
Figure 1 on page 4 for the valve locations.
on page 18. Refer
Figure 9