Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 30)

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8.0 Calibration
Once installation is complete and the approximate output
has been determined, the pump should be calibrated to adjust
speed and stroke for your actual desired output. (Calibration
cylinders may be purchased from your local LMI distributor,
ref. publication 1798.)
. 1. Be sure the pump is primed, and discharge tubing and Injec-
tion Check Valve are installed as they would be in normal
service (i.e., including factors such as injection pressure,
fluid viscosity, and suction lift).
2. Place the Foot Valve in a graduated container with a volume
of 1000 ml or more.
3. Plug in and switch pump to Internal Mode. Pump until all
the air is exhausted from the suction line and head.
4. Turn the pump off. Refill graduated container to a level
starting point.
Ifpumpisequippedwithpressurecontrol,seeSection8.1before
proceeding.
5. Using a stopwatch or timer, turn the pump on for a measured
amount of time (50 pump strokes minimum). The longer the
time period, the more confident you can be of the results. Be
sure to count the number of strokes during the calibration
period when making comparisons.
6. Turn the pump off. Note the time elapsed in relation to vol-
ume displaced in the graduate. Now, calculate the output in
the time unit you choose (minutes, hours, days, etc.).
7. If the output is too low or too great, adjust speed and or stroke,
estimating required correction and repeat steps 1-7.