LDES025U Datasheet, PDF (6/13 Pages) Sensortechnics GmbH – Digital low differential pressure sensors

LDE Series
Digital low differential pressure sensors
PERFORMANCE CHARACTERISTICS⁶
LDE...3...
(V_S=3.0 V_DC, T_A=20 °C, P_Abs=1 bara, calibrated in air, output signals analog and digital are non-ratiometric to V_S)
all 100 Pa, 250 Pa and 500 Pa devices
Characteristics
Noise level (RMS)
Offset warm-up shift
Offset long term stability⁷
Offset repeatability¹²
Span repeatability^{10, 11}
Current consumption (no load)⁸
Response time (t63)
Power-on time
Min.
Typ.
±0.01
±0.05
±0.02
±0.25
14
5
Max.
less than noise
±0.1
16
25
Unit
%FSS
%FSS/year
Pa
% of reading
mA
ms
Digital output
Characteristics
Scale factor (digital output)⁹ 0...100 / 0...±100 Pa
0...250 / 0...±250 Pa
0...500 / 0...±500 Pa
Zero pressure offset accuracy¹⁰
Span accuracy^{10, 11}
Thermal effects
Offset 5...55 °C
0...70 °C
Span
5...55 °C
0...70 °C
Min.
Typ.
300
120
60
±0.05
±0.4
±1
±2
Max.
Unit
counts/Pa
±0.1
±0.75
±0.1
±0.2
±1.75
±2.75
%FSS
% of reading
%FSS
% of reading
Analog output (unidirectional devices)
Characteristics
Zero pressure offset
Full scale output
Span accuracy^{10, 11}
Thermal effects
Offset
Span
5...55 °C
0...70 °C
5...55 °C
0...70 °C
Min.
0.29
Typ.
0.30
2.70
±0.4
±1
±2
Max.
0.31
±0.75
±10
±12
±1.75
±2.75
Unit
V
% of reading
mV
% of reading
Analog output (bidirectional devices)
Characteristics
Zero pressure offset
Output
Span accuracy^{10, 11}
Thermal effects
at max. specified pressure
at min. specified pressure
Offset
Span
5...55 °C
0...70 °C
5...55 °C
0...70 °C
Min.
1.49
Typ.
1.50
2.70
0.30
±0.4
±1
±2
Max.
1.51
±0.75
±10
±12
±1.75
±2.75
Unit
V
% of reading
mV
% of reading
E / 11815 / E
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