Endress+Hauser Proline Prowirl 72, Руководство по эксплуатации

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Proline Prowirl 72 11 Description of device functions
E Hauser 81
FORMAT Use this function to define the maximum number of places after the decimal point for the
value displayed in the main line.
Options:
XXXXX. - XXXX.X - XXX.XX - XX.XXX -X.XXXX
Factory setting:
XX.XXX
!
Note!
• Note that this setting only affects the reading as it appears on the display, it has no
influence on the accuracy of the system's calculations.
• The places after the decimal point as computed by the measuring device cannot
always be displayed, depending on this setting and the engineering unit. In these
instances an arrow appears on the display between the measured value and the
engineering unit (e.g. 1.2
→
kg/h), indicating that the measuring system is
computing with more decimal places than can be shown on the display.
DISPLAY DAMPING Use this function to enter a time constant defining how the display reacts to severely
fluctuating flow variables, either very quickly (enter a low time constant) or with
damping (enter a high time constant).
User input:
0...100 s
Factory setting:
5 s
!
Note!
• The setting 0 seconds switches off damping.
• The reaction time of the function depends on the time specified in the FLOW
DAMPING function (see Page 99).
CONTRAST LCD Use this function to optimize the display contrast to suit local operating conditions.
User input:
10...100%
Factory setting:
50%
!
Note!
If you press the
P
keys simultaneously at startup, the language defaults to “ENGLISH”
and the contrast is reset to the factory setting.
TEST DISPLAY Use this function to test the operability of the local display and its pixels.
Options:
OFF
ON
Factory setting:
OFF
Test sequence:
1.
Start the test by selecting ON.
2. All pixels of the main line and additional line are darkened for minimum 0.75
seconds.
3. The main line and additional line show an “8” in each field for minimum 0.75
seconds.
4. The main line and additional line show a “0” in each field for minimum 0.75 seconds.
5. The main line and additional line show nothing (blank display) for minimum
0.75 seconds.
6. When the test is completed, the local display returns to its initial state and the displays
the option OFF.
Function description USER INTERFACE