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FW-E115-P-M_v0203_03_EN.docx
This setting determines for flowrate the number of decimals.
The following can be selected:
0, 0.1, 0.02, 0.003
The next menu item can be modified only if the automatic unit
conversion in SETUP 6.6, Flowmeter-units, is set to Hand.
Else, the display will show “AUTO”.
With the Flowrate K-factor, the flowmeter pulse signals from pickup A
are converted to a flowrate unit. The Flowrate K-factor is based on the
number of pulses generated by the flowmeter per selected
measurement unit (SETUP 2.1).
The more accurate the K-factor, the more accurate the functioning of
the system will be.
After pressing PROG, the decimal point will be flashing. The decimal
position can be changed now by pressing the ▲-key.
The flowrate is calculated by measuring the time between a number
of pulses, for example 10 pulses. The more pulses the more accurate
the flowrate will be. The maximum value is 255 pulses.
• This setting does influence the update time for the analog output
directly (maximum update 8 times a second). If the output
response is too slow, decrease the number of pulses.
• The lower the number of pulses, the higher the power
consumption of the unit will be (important for battery powered
applications).
• For low frequency applications (below 10Hz): do not program
more than 10 pulses else the update time will be very slow.
For high frequency application (above 1kHz) program a value of
50 or more pulses.
• Keep in mind that values higher than 200 in combination with low
frequencies, will result in slow updates of the indicated flow rate
and analog output.
With this setting, a minimum flow requirement threshold is
determined. If during this time less than XXX-pulses (SETUP 2.5) are
generated, the flowrate will be displayed as zero.
The cut-off time has to be entered in seconds – maximum time is
999.9 seconds (approximately 15 minutes).
3.3.4 EXPLANATION OF SETUP-MENU 3 – TOTAL B
• For Total, you can only set K-Factor B when “Dual” is selected in SETUP 6.5.
• Per default setting, the K-Factor is set to “Single” (K-Factor A = K-Factor B).
• Below setting is not available when “Single” is selected or the automatic unit conversion
in SETUP 6.6, Flowmeter-units, is set to Auto-Vol or Auto-Mass.
With the Total K-Factor, the flowmeter pulse signals from pickup B are
converted to a total unit. The Total K-Factor is based on the number
of pulses generated by the flowmeter per selected measurement unit
(SETUP 1.1). The more accurate the Total K-Factor, the more
accurate the functioning of the system will be.
After pressing PROG, the decimal point will be flashing. The decimal
position can be changed now by pressing the ▲-key.