FW_F115P_v1702_02_EN
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K-FACTOR
24
This setting is used to set the K-Factor for the flow rate (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.
DECIMALS K-FACTOR
25
This setting is used to set the amount of digits behind the decimal point for the
K-Factor (A).
CALCULATION
26
The flow rate is calculated by measuring the time between a number of
pulses, for example 10 pulses. The more pulses the more accurate the
flow rate will be. The maximum value is 255 pulses.
This setting does influence
the update interval for the flow rate and
thus, indirectly the update interval of the analog output..
(maximum
update 10 times a second). If the output response is too slow, decrease
the number of pulses. For low frequency applications (< 10Hz): do not
program more than 10 pulses, else the update time will be very slow.
For high frequency applications (> 1kHz): do program 50 or more pulses.
CUT-OFF
27
This setting is used to set the threshold for a minimum flow. If during this
time less than XXX-pulses are generated (refer to Calculation), the flow
rate will be shown as zero. The cut-off has to be entered in seconds.
3.1.4
EXPLANATION OF SETUP-MENU 3 - TOTAL-B
For Total, you can only set the K-Factor B when in the flowmeter menu the K-Factor is set to Dual.
Per default setting, the K-Factor is set to single (K-Factor A = K-Factor B). When Dual is selected,
the Total-B settings are not visible (editable). This is normal behavior.
K-FACTOR
31
K-Factor B determines the calculation factor for the
reverse
total !
This setting is used to set the K-Factor for the total (B). 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.
DECIMALS K-FACTOR
32
This setting is used to set the amount of digits behind the decimal point for the
(accumulated) total indication (B).
3.1.5
EXPLANATION OF SETUP-MENU 4 - FLOW RATE-B
For Flow rate, you can only set the K-Factor B when in the flowmeter menu the K-Factor is set to
Dual. Per default setting, the K-Factor is set to single (K-Factor B = K-Factor A). When Dual is
selected, the Total-B settings are not visible (editable). This is normal behavior.
K-FACTOR
41
K-Factor B determines the calculation factor for the
reverse
flow rate !
This setting is used to set the K-Factor for the flow rate (B). 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.
DECIMALS K-FACTOR
42
This setting is used to set the amount of digits behind the decimal point for the
K-Factor (B).
3.1.6
EXPLANATION OF SETUP-MENU 5 - DISPLAY
FUNCTION
51
This setting can be set to display differential total or rate.
When 'total' is selected, simultaneously, total is shown with the large digits and
flow rate with the smaller digits. When SELECT is pressed, the accumulated
total is shown temporarily.
When 'rate' is selected, only flow rate will be shown with the large digits
together with its engineering unit. When SELECT is pressed, the total and the
accumulated total are shown temporarily.
SHOW A-B
52
This setting determines the behavior of the operator menu. You can select
differential totals only (disable) or differential totals and accumulated totals
for flow A and flow B separately (enable).