FISCHER DE23 Series, Руководство по эксплуатации

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5 | Technical Data FISCHER Mess- und Regeltechnik GmbH
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5 Technical Data
5.1 Generalities
Reference conditions (acc. to IEC 61298-1)
Temperature +15 … +25 °C
Relative humidity 45 … 75 %
Air pressure 86 … 106 kPa 860 … 1060 mbar
Installation position User-defined
All information in the technical data refer to one measuring value channel. The
technical data for the second measuring value channel is identical and is there-
fore not listed.
5.2 Input variables
Measured variable
Differential pressure, positive and negative over-pressure
Mearuring ranges
Relative pressure +/- measuring ranges asymmetric
0 … 25 Pa ± 25.0 Pa -20 … +80 Pa
0 … 50 Pa ± 50.0 Pa
0 … 100 Pa ± 100.0 Pa
0 … 250 Pa ± 250.0 Pa
0 … 500 Pa
0 … 1000 Pa
For all measuring ranges:
Max. system pressure stat. pressure 1 bar
Bursting pressure on
one side 1,7 bar
5.3 Output sizes
Current output Voltage output
Output signal 4 … 20 mA 0 … 10 V
Apparent ohmic resist-
ance R
L
≤ (U
b
-12 V)/0.02 A
Characteristic curve linear linear
Connection type 2-Wire 3-Wire
5.4 Measurement accuracy
Characteristic curve deviation
1)
1 % FS
2)
Reproducibility 0.1 % FS
TK zero-point and range
3)
0.6 % FS / 10 K
Long-term stability ≤ 0.5 % FS / year
Response time (10 … 90 %) 250 ms
1)
Non-linearity and hysteresis at 25 °C
2)
FS: Full Scale (measurng range span)
3)
Compensation range 4 … 50 °C