Nova-Tech LMI Roytronic Excel Series AD Metering Pump - Manual (Page 19)

19
OPERATION
4.2.3 Start-Up/Priming for AutoPrime™ Heads (LE-XXXAX or LE-XXXHX)
Read this entire section completely before proceeding.
When all precautionary steps have been taken, the pump is mounted, and the tubing is
securely attached, you may prime the pump.
1. Plug in or switch on the pump.
2. While the pump is running, set the speed knob and the stroke knob at 100%.
3. The suction tubing should begin to fill with solution from the tank as the AutoPrime™
valve purges air from the pump head.
4. Once the solution begins to exit the pump head through both the discharge valve and
the AutoPrime™ valve, SHUT THE PUMP OFF.
5. The pump is now primed.
6. Proceed to output adjustment, Section 4.3.
4.3 Output Adjustment
Once the pump has been primed, an appropriate output adjustment MUST be made.
Pump output should be calculated and adjustments made accordingly.
4.3.1 Total Pump Output
Calculate the approximate output of the pump as follows:
PUMP OUTPUT = MAX PUMP OUTPUT x % SPEED x % STROKE
Example: AD251-938SI
Use Max Output (from dataplate on side of pump) = 1 GPH (1 gallon per hour).
If the pump is set at 60 strokes per minute (out of a possible 120 SPM) and 70% stroke
length, the approximate pump out-put is:
1.0 x 60 x 0.70 = 0.35 GPH.
120
Multiply by 24 (hours in one day) to calculate in gallons per day.
It is important to note that this is only an approximate output and it does not account for
tolerance variations in pump components or flow variations due to pressure sensitivity, or
viscosity effects. Variations due to these effects can be significant, necessitating
calibration for your pump.
When converting
between different
units, remember
these conversion
factors:
1 Gallon =
3.785 Liters
1 Day =
1,440 Minutes
120 SPM =
7,200 SPH