ZFC
page 14
ZFC K03/0522
7.1.2
EXPLANATION OF SETUP-MENU 1 - TOTAL-A
1
TOTAL-A
11 unit
This setting is used to select the engineering unit for the indication of the total (A
and B), the accumulated total (A and B), and the pulse output.
When you change the engineering unit, you must recalculate and
reprogram the K-factor for the (accumulated) total. When you
recalculate and reprogram the K-Factor, the history for
(accumulated) total is not correct anymore, because the
(accumulated) total is not recalculated. For future reference, best
practice is to make a note of the accumulated total before you
program the recalculated K-Factor.
12 decimals
This setting is used to set the amount of digits behind the decimal point for the
(accumulated) total indication (A and B).
13 K-factor
This setting is used to set the K-Factor for the total (A). With the K-Factor, the
flowmeter pulse signals are converted to a quantity. The K-Factor is based on the
number of pulses generated by the flowmeter per selected engineering unit, for
example per m
3
. A more accurate K-Factor (more decimals, as set in decimals
K-Factor) allows for a more accurate operation of the system.
Example 1: Calculating the K-Factor.
The flowmeter generates 2.4813 pulses per liter and the selected unit is m
3
. A
cubic meter consists of 1000 liter which gives 2.4813 pulses*1000 liter=2481.3
pulses per m
3
. So, the K-Factor is 2481.3. Enter for the Flowmeter K-Factor:
24813 and for the flowmeter K-Factor decimals: 1.
Example 2: Calculating the K-Factor.
The flowmeter generates 6.5231 pulses per gallon and the selected engineering
unit is gallons. So, the K-Factor is 6.5231. Enter for the Flowmeter K-Factor:
65231 and for the Flowmeter K-Factor decimals: 4.
When you recalculate and reprogram a new K-Factor, the history for
(accumulated) total is not correct anymore, because the
(accumulated) total is not recalculated. For future reference, best
practice is to make a note of the accumulated total before you
program the recalculated K-Factor.
14 decimals K-factor
This setting is used to set the amount of digits behind the decimal point for the
K-Factor (A).
