Datasheet

www.sensirion.com v3.1 June 2008 2/10
1 Specifications
Table 1: Sensor specifications (at 23°C and p
absolute
= 966 mbar, VDD = 5.0 V unless otherwise noted).
SDP1000-L05 SDP1000-L SDP1000-R SDP2000-L SDP2000-R Unit
Parameter
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
-5 125 - 20 500 - 20 500 -100 3500 -100 3500 Pa
Measurement range
-0.02 0.5 -0.08 2 -0.08 2 -0.4 14 -0.4 14 Inch water
Power supply
(see Tab 4)
4.75 5.00 5.25 4.75 5.00 5.25 4.75 5.00 5.25 4.75 5.00 5.25 4.75 5 5.25 V
Full scale output
(100 kΩ load)
4.00 4.00 4.00 4.00 4.00 V
Zero Pressure Output 0.250 0.250 0.250 0.250 0.250 V
0.2 0.3 0.1 0.2 0.2 0.3 0.1 0.2 0.2 0.3 % FS
(1)(2)
Accuracy
[0°C < T < 50°C]
(also see Figure 1)
1.5 2 1 1.5 1 1.5 1 1.5 1 1.5 % m.v.
(1)
Repeatability 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.5 % m.v.
(1)
Offset stability 0
±0.1
0
±0.1
0
±0.3
0
±0.3
0
±0.5
Pa / year
-3 +3 -3 +3 -30 +30 -3 +3 -30 +30 mV
Temp. variation of
zero pressure output
[0°C < T < 50°C]
- 0.1 + 0.1 - 0.4 + 0.4 - 2.8 + 2.8 Pa
±0.8 ±1.0 ±0.2
±0.25
±0.30
±0.40
±0.2 ± 0.25 ±0.30 ±0.40
% FS
(1)(2)
Temperature error of
span
[T < 0°C or T > 50°C]
±1.50 ±3.00 ±1.50
±3.00
±1.50
±3.00
±1.50
± 3.00
±1.50 ±3.00
% m.v.
(1)
Resolution < 30% FS
(1)
0.05 0.1 0.2 0.05 0.1 0.2 0.2 0.5 1 0.2 0.5 1 Pa
Resolution 30..70% FS
(1)
0.2 0.5 1.5 0.2 0.5 1.5 1 2.5 8 1 2.5 8 Pa
Resolution > 70% FS
(1)
0.05 0.1 0.2
1.5 2.2 3 1.5 2.2 3 8 11 14 8 11 14 Pa
(1)
FS = full scale or span, m.v. = measured value, i.e. reading, whichever value is bigger
(2)
FS = full scale or span, i.e. for the SDP1000 it is 500 Pa (2 “H2O), for the SDP2000 it is 3500 Pa (14 “H2O)
(3)
See 2.2 Voltage Output formula for conversion
0
1
2
3
4
5
6
7
8
9
10
0 102030405060708090100
differential pressure [% full scale]
± error [ % of measured value]
0
1
2
3
4
5
6
7
01234
repeatability [Pa]
offset drift/year [Pa]
Figure 1: Accuracy (includes errors caused by offset, linearity,
hysteresis and repeatability) of the SDP1000 -L (1), (2)
compared with typical membrane sensors (3).
Figure 2: Max. repeatability and offset drift/year of
the SDP1000-L (1) compared with two
typical membrane based sensors (2,3).
(1)
(2)
(3)
(1) SDP1000-L
(2,3) Membrane based sensors
1
2
3
(1) SDP1000 / SDP2000 around
23°C
(2)
SDP1000 / SDP2000 between
0°…50°C
(3)
Typical membrane based
sensor with 1.5% FS error
between 10°…40°C