Hach-Lange POLYMETRON 9245 User Manual - Manual (Page 48)

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Installation
4.4.8 Flow rate adjustment
1. From the MAINTENANCE/DIAG. menu select
START UP
and press Enter
2. First, the system automatically primes both the
calibration and reactivation tubes.
3. Check that there are no air bubbles in the reagent
tubes for reactivation and auto calibration.
4. The next step allows you to regulate the sample
flow rate on the measurement channel.
5. The analyzer automatically empties and refills the
overflow vessel to determine the flow rate which is
displayed on screen.
6. The flow rate should be 6 to 9 L/hour.
7. Using a screwdriver, regulate the channel’s sample
flow by turning counter-clockwise to increase the
flow rate or clockwise to decrease the flow rate.
8. The process is repeated until the flow is correctly
regulated for the channel. At this point select OK.
9. On completion, an Action completed message will
be displayed. Select Esc to exit.