Hf-scientific 19944 Triple Validation Turbidimeter - 0-100 NTU Instrukcja Użytkownika Pobierz pdf (Strona 18)

TVT2 (5/02)

Rev. 1.7 (.pdf)

When the calibration procedure for the 10.0 NTU level is complete the CAL and

STORE blocks will stop flashing. You will see the following on the display:

11. Then, you will see the following on the display:

12. Drain the 10.0 NTU calibration standard from the sample well and rinse the well at

least twice with 0.02 NTU water.

13. Fill the well with 0.02 NTU water and then place the black cleanout plug on the

sample well (to block light).

14. Press the

↵

↵↵

↵

button to indicate to the instrument that you wish to calibrate on the 0.02

NTU calibration level. Once you have pressed the

↵

↵↵

↵

button, the current reading will

be actively displayed on the LCD display. Wait for the reading to stabilize, once the

reading has stabilized press the

↵

↵↵

↵

button again. The word CAL will appear on the

upper row of the LCD display and the word NO will appear on the lower row of the

LCD display.

15. This is the final step for calibration on the 0.02 NTU level; if you wish to exit without

calibrating simply press the

↵

↵↵

↵

button at this time. However, if you are satisfied and

wish to complete calibration on the 0.02 NTU level use the tu arrows to select the

word YES on the lower row of the display and then press the

↵

↵↵

↵

button to initiate

calibration. Both the CAL and STORE blocks will flash during the operation and

the word YES will change to a count down starting at 90. When the calibration

procedure for the 0.02 NTU level is complete the CAL and STORE blocks will stop

flashing.

Note: Prior to exiting the calibration routine ensure that the process water is flowing

through the sample chamber. This will help prevent unwanted spikes in the outputs

from the instrument.

16. The word END will appear on the lower row of the LCD display.

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