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7-2.1 Calculating the K Factor for Digital Pulse
Inputs.
Step 1. Find out what value the pulses
represent. This should be specified on your
device or with its paper work.
Example #1: 360 Pulses = 1 yard
Example #2: 1 Pulse = 2 gallons
Example #3: 2000 Pulses = 1 m
3
Step 2. The Base K Factor is equal to the number
of pulses per value from Step 1(Pulses
÷
Value).
Example #1: Base K Factor = 360
Example #2: Base K Factor = 0.5 (1 pulse
÷
2
gallons)
Example #3: Base K Factor = 2000
Step 3. Modify the Base K Factor to reflect any
units conversions to the Count K Factor This is
done by dividing the Base K Factor by a Units
Conversion Factor. If no conversion is necessary
skip this step and let the Count K Factor be the
same as the Base K Factor. REFER TO THE
UNITS CONVERSION CHART AS NEEDED.
Example #1: No conversion needed. Count K
Factor = 360
Example #2: Convert gallons of water to pounds
of water.
Count K Factor = 0.5
÷
8.3378 =
0.0599679
Example #3: Convert m
3
to ft
3
.
Count K Factor = 2000
÷
35.3147 =
56.63364
UNITS CONVERSION CHART
To convert: divide by
To convert: divide by
ft to m
0.3048 kg
to lb
2.2046
ft
2
to m
2
0.0929 l
to ft
3
0.0353
ft
3
to m
3
0.02832
l to gal 0.2642
ft
3
to gal
7.4805 m
to ft
3.2808
gal to l
3.7854
m
2
to ft
2
10.7639
gal to m
3
0.00379
m
3
to ft
3
35.3147
gal to ft
3
0.1337
m
3
to gal 264.172
gal to lb(H
2
O) 8.3378
lb to kg 0.45359
Step 4. Enter the Count K Factor. (See Section
3-3, Menu Item 3).
Step 5. Modify the Count K Factor to reflect any
time conversions for the rate display to the Rate K
Factor. This is done by dividing the Count K
Factor by the Time Conversion Factor. If no
conversion is necessary skip this step and let the
Rate K Factor be the same as the Count K Factor.
USE THE TIME CONVERSION CHART AS
NEEDED.
Example #1: Convert yds per sec to yds per hour.
Rate K Factor = 360
÷
3600 = 0.100
Example #2: Convert pounds per min to pounds
per sec.
Rate K Factor = 0.0599679
÷
.1666667 =
0.3598073
Example #3: No conversion necessary.
Rate K Factor = 56.63364
Step 6. Enter the Rate K Factor.
(See Section 3-3, Menu Item 1)
TIME CONVERSION CHART
To convert: divide by
To convert: divide by
sec to min 60.00
min to hr
60.00
sec to hr
3600
hr to min
0.1666667
min to sec 0.1666667
hr to sec
0.0002778
7-2.2 Digital K Factor Formulas
Pulses = Base K Factor
Units Value
Base K Factor
= Count K Factor
Units Conversion Factor
Count K Factor
= Rate K Factor
Time Conversion Factor
Summary of Contents for KEPtrol F/C
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