Operation 4.6.2 one point sample calibration, 3 concurrent calibration of two sensors – Hach-Lange 3400 sc User Manual
Page 24
20
Operation
4.6.2 One Point Sample Calibration
The wet calibration requires that the sensor be immersed into a properly prepared
conductivity reference solution or if installed in the process sample, the process value
must be determined by laboratory analysis or comparison reading.
Remove the probe from the process and clean it. Obtain a sample solution with a known
value and proceed as follows:
1.
Select the Main Menu.
2.
From the Main Menu, select SENSOR SETUP and confirm.
3.
Select the appropriate sensor if more than one sensor is attached and confirm.
4.
Select CALIBRATE and confirm.
5.
Select ZERO and confirm.
6.
Select 1 POINT SAMPLE and confirm.
7.
Select the available Output Mode (Active, Hold, or Transfer) from the list box and
confirm.
8.
Move the sensor to the sample and confirm to continue.
9.
Confirm when stable.
10. Edit the value and temperature using the keypad and confirm.
11. Return the sensor to the process.
4.6.3 Concurrent Calibration of Two Sensors
1.
Begin a calibration on the first sensor and continue until “WAIT TO STABILIZE”
is displayed.
2.
Select Leave and confirm.
The display will return to the Main Measurement screen and the reading for both sensors
will be flashing.
3.
Begin the calibration for the second sensor and continue until “WAIT TO STABILIZE”
is displayed.
4.
Select LEAVE.
The display will return to the Main Measurement screen and the reading for both sensors
will be flashing. The calibration for both sensors are now running in the background.
5.
To return to the calibration of either sensor, select the Main Menu
6.
Select SENSOR SETUP and confirm.
7.
Select the appropriate sensor and confirm.
8.
The calibration in progress will be displayed. Continue with the calibration.