HF074AEN_v0403_04 Atex_IECEx_CSA_FM
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2.3.
OPERATOR INFORMATION AND FUNCTIONS
In general, the F074-A will always act at Operator level. The information displayed is dependant
upon the SETUP-settings. The signal generated by the connected sensor is measured by the
F074-A in the background, whichever screen refresh rate setting is chosen. After pressing a key, the
display will be updated very quickly during a 30 second period, after which it will slow-down again.
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
Display level / height or percentage
This is the main display information of the F074-A. After selecting any other information, it will
always return to this main display automatically.
Level is displayed on the upper-line of the display and the percentage, height or nothing on
the bottom line (depending on the configuration settings).
When "-------" is shown, then the value is too high to be displayed. The arrows
indicate the
increase/decrease of the level trend.
Control output
The function of the F074-A, fill up or pump out, is determined at configuration level, not at
Operator level.
If the output signal is switched on, the text “CONTROL ON” is displayed.
Programming the high and low level control positions
Note:
This function might not be accessible due to a configuration setting.
When the SELECT-key is pressed a few times, following control values are displayed:
low control level: enter here 40 USGAL for example,
high control level: enter here 600 USGAL for example,
To change the control value, the following procedure must be executed:
1)
press PROG: the word "PROGRAM" will flash or a pass code will be requested,
2)
use
to select the digits and
to increase that value,
3)
confirm the new value by pressing ENTER.
RUN
RUN
