Digital Aquatics Reef Keeper Manuel de configuration - Page 6
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Many people will want to dose as accurately as possible and for that a couple of facts must be
realized:
A) In order to determine the exact amount of fluid the pumps actually move per unit time,
it is necessary to time how long it takes the pumps to move a given amount of fluid –
after being mounted and intake/outtake lines are run. We find the best way to do this is
to get a couple of old test vials. Use a test syringe to add 5ml to one of them, and put
the output of the pump in the second one. Run the pump until the level of fluid in the
second vial is the same as the first, and keep track of the time it takes. If it took 4:35
minutes to pump 5ml, the pump actually moves 1 ml every 55 seconds. How did we
figure that out?
4:35 is equivalent to 275 seconds.
275 seconds / 5 ml = 55 seconds per ml
B) Many people will try to determine the length of time they need to run the pump by
dividing the amount they want to dose by the pumps specification of 1.1 ml/min. If that
is done, remember that the result of that is not in minutes and seconds!
For example:
75 ml divided by 1.1ml/min = 68.18.
68.18 is not 68 minutes and 18 seconds. It is 68 minutes and 10.8 seconds.