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AW Company 8809 Industrial Drive, Franksville, WI 53126 à web: www.awcompany.com
Tel: 262-884-9800 Fax: 262-884-9810 | Email: aw@awcompany.com
REV. 4 10/05 EMO-500 Manual.DOC
19
2. KFT for A ................................................................................................Default 10000
In order to make the EMO 500 display the correct Totalized Value in Engineering
Units, again the most important thing to know is the K-factor of the flow meter. The
K-factor is the relationship between the amount of the impulses and the engineering units.
In order to calculate the KFT for the EMO 500 apply the following formula.
10000
KFT =
K-factor
The KFT is the number that should be entered in the Globals Programming section. The
K-factor is the number published by the manufacturer as the average K-factor of the flow
meter. If this is published in imp/Gal the totalizer can still be set in, say cc's , by
converting the K-factor to imp/cc. 10000 is a constant
.
For example: A flow meter has a K-factor of 106666.0 imp/Gal and the display
should show gallons/minute.
10000
KFT= = .9376 Gal
10666.0
The number 9376 would be entered as the KFT and then the DP (decimal point) key
would move the DP to 0.937. (See note below).
NOTE: We recommend removing the insignificant decimal numbers often produced
by calculator mathematics. These are mathematically redundant and offer a misleading
level of precision in the display. We recommend using a maximum of 4 digits regardless
of the decimal point.
Example: for 60.675, enter 60.6
for 2.34543 enter 2.345
NOTE:
< The largest number that can be entered as a KFT is 65000. Refer to KFR note
above.
3. KFR for B The operations are the same as KFR for A.
4. KFT for B The operations are the same as KFT for A.