Explanation Of Setup-Menu 3 - Display; Explanation Of Setup-Menu 4 - Power Management - Fluidwell F Series Manual

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2.4 SPAN
2.5 DECIMALS SPAN
3.3.4

EXPLANATION OF SETUP-MENU 3 - DISPLAY

SETUP FUNCTIONS AND VARIABLES
3 DISPLAY
3.1 FUNCTION
3.2 BACKLIGHT (optional)
3.3 BL. BRIGHTNESS
(optional)
3.3.5

EXPLANATION OF SETUP-MENU 4 - POWER MANAGEMENT

When used with the internal battery option, the user can expect reliable measurement over a long
period of time. The F012-A has several smart power management functions to extend the battery life
time significantly. Two of these functions are available.
SETUP FUNCTIONS AND VARIABLES
4 POWER MANAGEMENT
4.1 LCD NEW
With the span, the flowmeter signal is converted to a quantity. The
span for flow rate is determined on the basis of the selected
measurement unit, decimals and time unit at 20mA. The more
accurate the span, the more accurate the functioning of the system
will be.
Example 1 Calculating the span for flow rate
Let us assume that the flowmeter generates 20mA at a flow rate of
2,481.3 Liters/minute, the selected unit is "Liters" and time unit
"minute". The span is 2481.3. Enter for SETUP - 2.4: "24813" and for
SETUP - 2.5 - decimals "1".
Example 2 Calculating the span for flow rate
Let us assume that the flowmeter generates 20mA at a rate of 652.31
USGAL per hour, the selected unit is USG and the time unit is minute.
The span is 652.31 / 60 minutes is 10.87183 (GPM). Enter for SETUP
- 2.4: "10872" and for SETUP - 2.5: "3".
This setting determines the number of decimals for the Span
(SETUP 2.4). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this SETUP - influences the accuracy of the Span
indirectly. This setting has NO influence on the displayed number of
digits for "flow rate" (SETUP 2.3)!
The large 17mm digits can be set to display total or flow rate.
When "total" is selected, both total and flow rate are displayed
simultaneously.
When "flow rate" is selected, only flow rate will be displayed with its
measuring unit while total will be displayed after pressing SELECT.
The functions below will only affect the optional LED-backlight.
If a LED backlight has been supplied, it can be turned on or off.
The backlight brightness is adjustable. The following can be selected:
1 – 5 (where 1 is minimum and 5 is maximum brightness)
The calculation of the display-information influences the power
consumption significantly. When the application does not require a
fast display update, 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 signal will be generated in the normal
way. The following can be selected:
Fast - 1 sec - 3 sec - 15 sec - off.
Example battery life-time:
•
FAST update: about 3 years.
•
1 sec update: about 5 years.
After a button has been pressed by the operator - the display refresh
rate will always switch to FAST for 30 seconds. When "OFF" is
selected, the display will be switched off after 30 seconds and will be
switched on as soon as a button has been pressed.
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