14
Instruction Manual
3.3.2 Calibration in Internal Mode
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 Injection 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.
5. Using a stopwatch or timer, turn the pump on
for a measured amount of time (120 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 volume 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, use the
Stroke Adjustment Knob and / or the Speed
Adjustment Knob to fine-tune the amount of
flow, estimating required correction and repeat
steps 1-7.
Figure 14. Calibration in Internal Mode
SECTION 3 - OPERATION
