E119-P
FW_E119-P_M_v0301-02_EN Page 27
2 FLOWRATE
2.6 CUT-OFF
Determines a minimum threshold for the required flow. If during this time
less than XXX pulses are generated as set in 2.5: FLOWRATE > CALCULATION,
the flowrate will be displayed as zero.
The cut-off time has to be entered in seconds. The maximum time is 999.9
seconds (approximately 15 minutes).
2.7 FILTER
Stabilizes the flowrate reading. This digital filter setting produces a more
stable but less actual reading. The filter principal is based on three input
values: the filter level (01-99), the last calculated flowrate, and the last
average value.
The higher the filter level, the longer the response time of a changed value.
Use trial and error to find the best setting for your application.
5.5.3 MENU 3: DISPLAY
3 DISPLAY
3.1 FUNCTION
Determines which information is shown on the main screen.
● Total: Total is displayed with the large 12 mm (0.47”) digits; Flowrate is
displayed with the 7 mm (0.28”) digits simultaneously.
● Flowrate: Only Flowrate is displayed with the large 12 mm (0.47”) digits
together with the measuring unit.
● Accumulated total: Total is displayed with the large digits; Accumulated
total is displayed with the small digits simultaneously.
When SELECT is pressed on the main screen, the operator can scroll
through the various process values. See Section 4: Operation[»11] for more
information on operator information and functions.
3.2 DAY TOTALS
A basic data log function is available to register Current Day Total and
Previous Day Total. This setting determines the availability at the operator
level:
● Off: Current Day Total and Previous Day Total are not available.
● Operator: Current Day Total and Previous Day Total are available at the
operator level by pressing the SELECT key several times. At setup level,
they can be viewed at
1.7: TOTAL > CURRENT DAY TOTAL and 1.8: TOTAL >
PREVIOUS DAY TOTAL.
● Hidden: Current Day Total and Previous Day Total are only available at
1.7: TOTAL > CURRENT DAY TOTAL and 1.8: TOTAL > PREVIOUS DAY TOTAL.
When this function is enabled, a list of the last 15 historical day totals is
available and can be reviewed from the operator level. See Section 4:
Operation[»11] for information on reviewing historical day totals.
3.3 LCD NEW
Calculating the display information significantly affects the power
consumption. When the application does not require a fast display refresh
rate, it is strongly advised to select a slow refresh rate. Information will not
be lost, every pulse will be counted, and the output signals will be
generated in the normal way. The following can be selected:
fast, 1 sec, 3 secs, 15 secs, 30 secs, off
When “off” is selected, the display switches off automatically. When an
update rate other than “fast” is selected, pressing a key will switch the
update rate to “fast” for 30 seconds. After this time, the display will return to
the configured update rate (or switch off).
Save battery lifetime by choosing an update time of 1 second or longer.
After the operator has pressed a button, the display refresh rate will always
switch to fast for 30 seconds. When 'OFF' is selected, the display will:
temporarily turn on after one of the keys is touched; and automatically turn
off after 30 seconds.
3.4 BACKLIGHT
(BRIGHTNESS)
The unit has a backlight. The backlight brightness can be adjusted from off
(0%) to max (100%) in steps of 20%.
● The brightness cannot be adjusted for battery powered units.
● When the unit is only loop powered, it cannot use the backlight. An
external supply is required instead.
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