Catalogue SDP1108 Differential Pressure Sensor
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5EN5IRION
THE SENSOR COMPANY
2.2 Bidirectional
Table 2: SDP11Q8-Lbi and SDP1108-Rbi Sensor specifications!1)
Parameter
SDP1108-L
SDP1108-R
Unit
Min
Typ
Max
Min
Typ
Max
Measurement range
0.25
-
4
0.25
-
4
Volts
-487
-
500
-474
-
500
Pa
-1.96
-
2.00
-1.90
-
2.00
Inch water
Null offset variance*2*
-0.007
2.1
+0.007
-0.020
2.1
+0.020
Volts
-1.8
-
+1.8
-0.06
-
+0.06
Pa
-0.008
-
+0.008
-0.0002
-
+0.0002
Inch water
Accuracy*3*
100 to 500 Pa
-
1.0
2.0
1.0
2.0
% Measured Value*4*
Qto 100 Pa
-
0.2
0.3
0.2
0.3
% Full Span*5*
Repeatability
100 to 500 Pa
-
0.3
0.5
0.3
0.5
% Measured Value
-100 to 100 Pa
-
0.05
0.2
0.05
0.2
% Full Span*5*
-100 to -500 Pa
0.3
0.5
0.3
0.5
% Measured Value
Null drift per year*7*
-
0
0.1
0
0.1
Pa /year
Null shift due to temperature variation'8* [5 to 50°C]
-0.010
+0.010
-0.030
+0.030
Volts
-2.6
+2.6
-0.12
0.12
Pa
-0.010
+0.010
-0.0004
+0.0004
Inch water
Span shift due to temperature variation*8* [5 to 50°C]
1.0
2.0
1.0
2.0
% Measured Value
Resolution
350 to 500 Pa
0.08
0.1
0.2
0.08
0.1
0.2
Pa
150 to 350 Pa
0.2
0.5
1.5
0.2
0.5
1.5
Pa
0to150 Pa
1.5
2.2
3
1.5
2.2
3
Pa
Response time*9*
6.6
8.0
10.1
6.6
8.0
10.1
ms
Cut offfrequency of internal filter
17
20
24
17
20
24
Hz
*1* Calibration conditions apply unless otherwise noted: 23°C and pabsolute = 966 mbar, dry air, Vdd = 5.000 V
*2* Variance between the offsets ofdifferentsensors measured underthe same conditions *e.g. same supply voltage, temperature,...)
*3* Include deviations due to linearity, hysteresis, and repeatability. For accuracy in the negative range, contact info@sensirion.com
*4* % measured value = *SDP1108 output [Pa] - outputof reference instrument [Pa]*/outputof reference instrument [Pa].
*5* Full span = 3750mV orl 000 Pa
*7* Drift overtime due to aging, pressure cycles... Test results can be provided.
*8* The offset shift and the span shift due to temperature variation are temporary. Once the sensor is back to the calibration temperature, the shift
disappears *no hysteresis*. *9*Tau= 0 to 63%, filter response time = 8ms. Forfaster response time, contact info@sensirion.com
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SDP1108 - preliminary data sheet v0.95 February 2007
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