Fluidwell F115-P User Manual

FW_F115-P_M_v2201-01_EN.docx
Page 14
3.3.3 MENU 2 - FLOW RATE - A
The settings for total and flow rate are entirely separate. In this way, different engineering units can
be used for each e.g. cubic meters for total and liters for flow rate.
2
FLOW RATE
2.1
UNIT
This setting is used to select the engineering unit for the indication of the
flow rate (A and B).
Alteration of the engineering unit will have consequences for operator and
setup values, they will not be automatically recalculated to the value of the
new selected unit. The K-Factor has to be adapted as well; the calculation
is not done automatically.
2.2
TIME
This setting is used to set the time unit for the flow rate calculation (A and
B). Note that the flow rate is given in engineering unit/time unit, e.g.
liters/minute (l/min).
When you change this setting, also recalculate and change the settings for
the analog rate-min and analog rate-max.
2.3
DECIMALS
This setting is used to set the amount of digits behind the decimal point for
the flow rate indication (A and B).
2.4
K-FACTOR
This setting is used to set the K-Factor for the forward 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 m
3
. A more accurate K-Factor (more
decimals, as set in decimals K-Factor) allows for a more accurate
operation of the system.
2.5
DECIMALS K-
FACTOR
This setting is used to set the amount of digits behind the decimal point for
the K-Factor (A).
2.6
CALCULATION
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 flowrate 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.
2.7
CUT-OFF
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.
3.3.4 MENU 3  TOTAL  B
For Total B, the settings of Total A (see Menu 1 Total  A) are applied. However, the K-factor for B
can be set when Menu 7.6 Flowmeter  K-factor is set to dual. If 7.6 is set to single, Menu 3 Total 
B is not visible.
3
TOTAL - B
3.1
K-FACTOR
Sets the K-factor for reverse total B.
3.2
DECIMALS K-
FACTOR
Sets the number of decimals used for Total - K-factor B.
3.3.5 MENU 4  FLOW RATE  B
For Flow rate B, the settings of Flow rate A (see Menu 2 Flow rate  A) are applied. However, the K-
factor for B can be set when Menu 7.6 Flowmeter  K-factor is set to dual. If 7.6 is set to single,
Menu 4 Flowrate  B is not visible.
4
FLOW RATE - B
4.1
K-FACTOR
Sets the K-factor for reverse flow rate B.
4.2
DECIMALS K-
FACTOR
Sets the number of decimals used for Flow rate - K-factor B.

Fluidwell F115-P Specifications

General

Brand	Fluidwell
Model	F115-P
Category	Measuring Instruments
Language	English