Fluidwell F130-P, Руководство пользователя

Страница: 12 / 48

Page 12
FW_F130P_v1702_02_EN
3.1.2 EXPLANATION OF SETUP-MENU 1 - PRESET
1 PRESET
11 UNIT This setting is used to select the engineering unit for the indication of the
batch total, the accumulated total 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) batch total is not correct anymore, because the
(accumulated) batch 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.
13 K-FACTOR This setting is used to set the K-Factor for the total. 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) batch total is not correct anymore, because
the (accumulated) batch 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.
15 BATCH MINIMUM
This setting is used to set the lower limit for a batch volume. An
operator cannot set a batch volume which is beyond the lower limit.
16 BATCH MAXIMUM
This setting is used to set the upper limit for a batch volume. An
operator cannot set a batch volume which is beyond the upper limit.