Technical Data - FISCHER DE44 Operating Manual

Digital two-channel differential pressure switch/transmitter
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11 Technical data

Basic measuring range
Max. stat. operating pres-
sure
Bursting pressure
max.
Characteristic
curve deviation °)
typ.
max.
%FS/10K
TC span°°)
typ.
%FS/10K
max.
%FS/10K
TC zero point °°)
typ.
%FS/10K
°:
Characteristic curve deviation (non-linearity and hysteresis) at 25°C, basic measuring range (linear characteristic curve, not spread)
°°) : in relation to basic measuring range (not spread), compensation range 0 ... 60°C
Admissible ambient temperature
Admissible media temperature
Admissible storage temperature
Enclosure protection class
Nominal voltage
Admissible operating voltage U
Electrical connection type
Output signal
Admissible apparent ohmic
Characteristic curve
Power consumption
Relay contacts
Semiconductor switch
Process connection
electr. connection
Media-contacting material
Positive ranges (0 ... )
mbar
4
6
10
16
Pa
400 600 1000 1600
kPa
1
1.6
mbar
50
100
mbar
150
300
%FS
1.0
%FS
0.5
1.0
0.3
1.0
0.2
General points
-10 ... 70°C
-10 ... 70°C
-20 ... 70°C
IP 65 acc. to DIN EN 60529
Electrical data
24 V DC / AC
12 ... 32 V DC / AC
b
Three-wire
Current output
0 ... 20 mA, 4 ... 20 mA
≤ (U
R
- 4 V) / 0.02 A
L
b
≤1100Ω
resistance
R
L
can be programmed
approx. 2 W / VA
Display
3.5 character LED
Switch contacts
2 potential-free relay contacts programmed as NO contact or NC contact
U
= 32V AC/DC, I
max
2 potential-free semiconductor switches (MOSFET), SPST-NO/NC progr.
U = 3 ... 32V AC/DC, I
Connections
Hose screw connections made of Al, 6/4 mm or 8/6 mm
2 x round plug connector M12
Connector 1 for supply and analogue output signal (5-pole, male)
Connector 2 for switch contacts (4-pin, male)
Materials
Casing
Polyamide PA 6.6
Silicon, PVC, aluminium, brass
Assembly
Bore-holes on the reverse side for attachment of the assembly panels.
Wall mounting by means of assembly plate.
If the device is intended for outdoor use, we recommend permanently protecting the
membrane keypad against UV radiation and using a suitable enclosure or at least the erection
of a sufficiently dimensioned canopy as a protection measure against constant rain or snow.
25
40 60 100 ±2.5
±4
±250
2.5
4
6
10
250
500
50
750
1500
150
0.3
1.0
0.5
0.4
1.0
0.5
≤ 26V)
(U
b
(U
> 26V)
b
= 2 A, P
= 64 W/VA
max
max
= 0.25A, P
= 8 W/VA, R
max
max
+/- ranges
±6
±10
±16
±25 ±40 ±60 ±100
±1
±1.6 ±2.5 ±4
100
250
300
750
1.0
0.5
0.3
0.3
0.4
0.2
Voltage output
0 ... 10 V DC
≥ 2 KΩ
≥ 15V)
R
(U
L
b
≥ 10 KΩ
= 12 ...15V)
R
(U
L
b
≤ 4 Ω
ON
±6
500
1500

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