Hach NITRATAX sc Manual De Instrucciones página 14

Maintenance
1 Retaining strap
2 Cap bottom
5.4 Check the calibration
The NITRATAX sc program supports comparative measurements as part of Analytical
Quality Assurance (AQA) using a command that automatically sets the factor to "1" and
the offset to "0" so that standard solutions can be measured directly without further
adjustments.
1. Select 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 Test/Maintenance and confirm.
5. Select Maintenance and confirm.
6. Confirm the displayed Output mode information.
7. Select Signal and confirm.
8. Confirm to activate wiper.
9. Tank version: Remove sensor from the tank, rinse the measuring path with water
10. Press Back to return to Maintenance.
11. Press Back again. Confirm Put the sensor back into the process. (Measuring
12. The calibration check is completed.
14
Figure 1 Changing wiper profile
and fill it with standard solution (pipette), see
Flow-through version: Interrupt sample feed and supply with standard solution
(syring).
Observe the individual measured values on the display (3
top). The measurements are made automatically at an interval of 1 second. Then
re-install the sensor or connect sample feed.
operation after automatic wiping).
3 Wiper profile
4 Locking the wiper and cap in place
Figure 2 on page 15.
rd
numerical value from the
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