FISCHER DE85, Руководство по эксплуатации, Страница: 17 / 28

FISCHER Mess- und Regeltechnik GmbH Technical data | 6
BA_EN_DE85 17/28
6 Technical data
6.1 General
Type designation DE85
Pressure type Differential pressure
Measurement principle Piezo-resistive
Reference conditions (acc. to IEC 61298-1)
Temperature +15 to +25 °C
Relative humidity 45 … 75 %
Air pressure 86 to 106 kPa 860 to 1060 mbar
Installation position vertical
6.2 Input variables
Every measuring range is configured with the DIP switch as follows:
• Measuring range characteristic curve
- rising (e.g. 0 … x)
- falling (e.g. 0 … -x)
• Measuring range symmetry
- Symmetric bidirectional (e.g –x … +x)
- Asymmetric unidirectional (e.g. 0 … x)
• Unit in [mbar] or [Pa]
Measuring range Overload Bursting
pressure
≤ -2.50 … 2.50 mbar / -250 … 250 Pa 700 mbar 1 bar
≤ -10.00 … 10.00 mbar / -1000 … 1000 Pa 100 mbar 200 mbar
≤ -40.00 … 40.00 mbar / -4000 … 4000 Pa 310 mbar 410 mbar
≤ -100.00 … 100.00 mbar / -10 … 10 kPa 800 mbar 1 bar
≤ -250.00 … 250.00 mbar / -25 … 25 kPa 1.4 bar 2.5 bar
6.3 Measuring accuracy
• Based on the reference temperature, the information only applies within the
compensation range.
• The characteristic curve deviation contains linearity, hysteresis and non-re-
petitiveness.
• Compensation range: -20 … +70 °C.
• The information is provided for the rising measuring range characteristic
curve. They also apply for the falling characteristic curve.