FW_F126PELTP_v1702_02_EN
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FILTER
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This setting is used to stabilize the flow rate reading. With the help of this
digital filter a more stable but less actual reading can be obtained.
The filter principal is based on three input values: the filter level (01-99),
the last calculated flow rate and the last average value.
The higher the filter level, the longer the response time on a value change
will be. In practice it is best to use trial and error to find the best setting for
your application.
PERIOD
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This setting is used to calculate the flow rate by counting the number of
pulses within a certain time, for example 1 second. The longer the time the
more accurate the flow rate will be.
this setting does influence the update time for the analog output directly.
If the output response is too slow, decrease the number of pulses.
the shorter the update time, the higher the power consumption of the
unit will be (important for battery powered applications).
3.1.5.
EXPLANATION OF SETUP MENU 3 - DISPLAY
FUNCTION
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This setting can be set to display 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 measuring unit. When SELECT is pressed, the total
and the accumulated total are shown temporarily.
LIGHT
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The backlight brightness can be adjusted from 0% (off) to 100% (full
brightness) in steps of 20%.
When the F126-P is only loop powered, the backlight is disabled. An
external power supply is required to supply the backlight.
3.1.6.
EXPLANATION OF SETUP MENU 4 - POWER MANAGEMENT
When used with the internal battery option (type PB/PC), the user can expect reliable measurement
over a long period of time. The F126-P has several smart power management functions to extend
the battery life time significantly. Two of these functions can be set.
LCD NEW
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The calculation of the display-information influences the power
consumption significantly. When the application does not require a fast
display refresh rate, it is strongly advised to select a slow refresh rate.
Please understand that NO information will be lost; every pulse will be
counted and the output signals will be generated in the normal way.
At a key press, the display refresh rate will switch to FAST for 30 seconds.
When 'OFF' is selected, the display goes off after 30 seconds after the last
key press. The display temporarily comes on after a key press.
Example battery life-time with a coil pick-up:
1kHz pulse and FAST update: about 2 years;
1kHz pulse and 1 sec update: about 5 years.
BATTERY MODE
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The F126-P has two modes: operational or shelf.
After "shelf" has been selected, the F126-P can be stored for several years; it will
not process the sensor signal; the display is switched off but all settings and totals
are stored. In this mode, power consumption is extremely low.
To wake up the F126-P again, press the SELECT/
key two times.
