Liquid Controls SP2850 (MS-649) - Manual (Page 17)

Sponsler, Inc. Model SP2850-TC with MS649 Page 17 DOC#: MN-2850
16-POINT LINEARIZATION OPTION
Description:
The 16 point K-Factor option allows the user to dial in from 3 to 16 different frequency points (inputs per second) and different K-
Factor dividers from 0.0001 to 99999999 for each of these frequencies.
The 16 point unit determines the incoming frequency and calculates a K-Factor line slope from the two closest data points that
had been entered. The `specific K-Factor’ is then proportionally interpolated using 8-position floating math. This K-Factor is
applied to all inputs until the next frequency calculation, usually 1 second later. If a `0’ frequency is entered in `point 1’ the `point
1’ K-Factor will be applied to all inputs received before the first frequency calculation.
The rate can be displayed in 3 ways: `SECONDS_’, `MINUTES_’, or `HOURS_’. If `SECONDS_’ is selected the unit
displays the `base’ rate calculated from the incoming frequency and the `specific K-Factor’. If `MINUTES_’ is selected, the rate
displayed is 60 times the `base’ rate. If `HOURS_’ is selected, the rate displayed is 3600 times the `base’ rate.
POINT DATA FORMATTING
Each Frequency/K-Factor data entry is assigned a point number. Any point number may be selected to view and/or change the
Frequency/K-Factor data. The frequencies must be entered in ascending order. `BAD FREQ’ will flash when exiting the set up
mode if there is a sequence error. The unit will then display the sequence error point # so that corrections can be made.
NOTE A:
NOTE B:
NOTE C:
NOTE D:
NOTE E:
Example:
Unit defaults `0’ K-Factor to K-Factor of `1’ since it is impossible to divide by `0’
`Point 01’ will be the `low shut-off’ frequency. Below this frequency no rate will be displayed nor count
recorded. Point 01 should be assigned a frequency of `0’ with a K-Factor for lowest flow especially if
very slow flow is to be counted.
The entry for a frequency of `0’ for `point 03’ or above will tell the unit to continue the K-Factor slope line
calculated from the two previous Frequency/K-Factor points and ignore any higher point data. If a fixed
K-Factor id desired, select LN in 160 Point setup.
K-Factors are always positive numbers. To avoid undesired K-Factors projected around `0’ K-Factors,
insure that a positive K-Factor is assigned for the highest used frequency.
The decimal in the `TOTAL’ is a dummy. The K-Factor should be calculated to show all numbers as if
there were no decimal and then decimal added under DEC LOC section of COUNT MENU. The K-
Factor must be divided by a factor of ten for each digit to the right of the decimal in the displayed total.
A meter gives 133.4 pulses per gallon and it is desired to display in 1/100 gallons. Move K-Factor
decimal two places to the left (1.334) and key in 3 under DEC LOC menu. (2 digits display to the right of
the decimal)