FISCHER DE49 A Series, Руководство по эксплуатации

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4.3.9 Reset
The function
rst
allows all settings to be reset to default values. The default
value for this parameter is 0.
Enter the value 1 to carry out a RESET. As soon as the configuration mode is
quitted via the parameter
ESc
, a RESET is carried out and all parameters are
reset to the saved default values.
4.3.10 Parameter menu
After switching on the device, it will briefly indicate the software version number
and before entering the normal operating mode. By using the middle û key on
the membrane keypad you can access the parameter menu. The reading now
shows the text
ESc
. By using the right
þ
key, you can choose the parameters
from the following list one by one.
ESc
menu start (OUTPUT)
ma
Start of measuring range
Enter the pressure value here that corresponds to an output signal of 4mA.
Max. turndown 4:1.
me
End of measuring range
Enter the pressure value here that corresponds to an output signal of 20mA.
Max. turndown 4:1.
dam
Damping measuring pressure
To calm the pressure measurement, enter the minimum rising time (0 … 200s)
here.
ein
Change unit
bar, mbar, Pa, kPa, PSI, InWc
0ff
Offset correction
Correct the measuring pressure to zero here. The display shows the current
measured value that you can change by up to 1/3 of the basic range.
span
Span correction
Correct the pressure measurement span. The display shows the current meas-
ured value that you can change by up to ±10% of the basic range.
np
Zero-point window
Define a range around zero in which the measured value is permanently set to
zero. Outside the range, the measured value is approached as shown in the fig-
ure Zero-point window [
}
14] .