FISCHER DE23 Series, Руководство по эксплуатации

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FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2
BA_EN_DE23 7 / 20
2 channel version
Silicone-free
Item number
Measuring range Δ P1
Output signal ΔP1 / ΔP2
Measuring range ΔP2
Pmax.
Operating voltage
DE23D4D440BR00MW
0 ... 100 Pa
4 ... 20 mA
100 kPa
24 V DC
1604446.01.002 Prod. No.
0 ... 100 Pa
Special properties Order Codes
Technical data
Serial number
Connector 1
Supply and
output signal
Circuit diagram
Fig. 3: Nameplate 2-wire
2.4 Function diagram
+U
-U
b
b
Channel2
A
D
D
A
µC ΔP2
+
+Sig2
A
D
D
A
µC ΔP1
+
Channel1
+Sig1
Fig. 4: Function diagram 3-wire (voltage output)
A
D
D
A
µC ΔP1
+
Channel2
A
D
D
A
µC ΔP1
+
Channel1
+U
b1
-U
b1
/+Sig1
/ -Sig1
+U
b2
-U
b2
/+Sig2
/ -Sig2
Fig. 5: Function diagram 2-wire (current output)
2.5 Design and mode of operation
The basis of this transmitter is a sensor element with a produced differential
condenser made with silicon-glass technology.
The active pressure generates changes in capacity that is evaluated by the
device's electronics and transformed into an analogue signal 4 … 20 mA or
0 … 10 V.
The measuring channel are identical in the 2-channel models.