Chapter 6 – Additive Control
Firmware Version 3/4.31.37
The following is a screen sample for a Piston-type additive injector after calibration. Notice that the last three
fields (Piston Cycles, Additive Vol/Inject, and Vol/Inject Cal Factr) are specific to the piston type of injector.
Volume collected in beaker, displayed in thousandths of a gallon.
Volume collected in the beaker, displayed in CCs.
Number of piston strokes used in the calibration.
The Additive Volume per Injection parameter is applicable to all additive methods. When
using a piston system, with or without feedback, enter the volume of the calibrated cylinder
as indicated by the manufacturer or calibration service. When the additive method involves a
piston and an additive flow meter pulser, enter the cylinder size.
This factor will correct the calibrated cylinder volume to a gross observed volume, as
actually measured during the additive calibration process. When an additive meter is
involved, with or without a piston system, set the parameter to 1.0000.
6.8 CALCULATE ADDITIVE VOL/INJECT
This feature can be accessed at the Additive Calibrate screen. The feature is a calculator that can assist the user
in determining optimal vol/injection sizes based on known data such as the additive recipe percentage.
Calculations are made to find a vol/injection size that will not overexert the injector or cause the injections to be
timed too far apart. The resulting calculation for the vol/injection can be automatically entered for use by the
system.
The volume per injection setting will determine how frequently injections are made. If the volume per injection
setting is too small, the injector will have to work too hard to complete its requirement. Infrequent injections will
be the result of a vol/injection setting that is too large; this may undermine the instantaneous additive/product
ratio.
1. To use this feature, highlight “Calculate Additive Vol/Inject” and press Enter.
PRE #1 ADTV #1 (Adtv 001 ) CALIBRATE
Delivered Vol: 0.100( 379cc)
[1]Beaker Vol: 0.106990
[2]Beaker Vol CCs: 405.000
Piston Cycles: 5
Additive Vol/Inject: 0.0200
New Vol/Inject Cal Factr: 1.0699
Enter=Save Exit
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