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Электронный компонент: O2-E2

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PERFORMANCE
Output
A @ 20.9% O
2
260 to 315
Response time
t90 (s) from 20.9% to 0% O
2
< 15
Zero current
A in N
2
< 5
Pressure sensitivity
(% change of output)/(% change of pressure) @ 20kPa
< 0.1
Linearity
% O
2
deviation @ 30% O
2
< 0.6
Hysteresis
% O
2
change after 16 cycles: 0 to 20.9% O
2
< 0.2
Hand aspirator
% O
2
change during aspiration (typical)
20 to 21.5
response
LIFETIME
Output drift
% change in output @ 3 months
< 1
Operating life
months until 85% original output of 20.9% O
2
> 24
ENVIRONMENTAL
Humidity sensitivity
% O
2
change: 0% to 95% rh @ 40C
< 0.7
CO
2
sensitivity
% change in output / % CO
2
@ 5% CO
2
0.1
PHYSICAL
Diameter
mm (including label)
22.2
DIMENSIONS
Height
mm (excluding foam ring)
24.6
Weight
g
< 33
KEY
Temperature range
C
-30 to 55
SPECIFICATIONS
Pressure range
kPa
80 to 120
Humidity range
% rh continuous (0 to 99% rh short term)
5 to 95
Storage period
months @ 3 to 20C (store in sealed pot, unshorted
6
Load resistor
(recommended)
47 to 100
T
e
c
hnical Specif
ica
tion
O2-E2 Oxygen Sensor
Figure 1 O2-E2 Schematic Diagram
All dimensions in millimetres ( 0.1mm)
Top View
Bottom View Side View
24.6
NOTE: all sensors are tested at ambient environmental conditions, with 47 ohm load resistor, unless otherwise stated. As applications of use are outside our control,
the information provided is given without legal responsibility. Customers should test under their own conditions, to ensure that the sensors are suitable for their own
requirements.
Alphasense Ltd, 3 Oak Industrial Park, Great Dunmow, Essex. CM6 1XN, UK
Telephone: +44 (0) 1371 878048 Fax: +44 (0) 1371 878066 E-mail: sensors@alphasense.com Website: www.alphasense.com
S
O2-E2 Performance Data
Figure 2 Sensitivity Temperature Dependence
Figure 3 10kPa Pressure Step Performance
In the interest of continued product improvement, we reserve the right to change design features and specifications without prior notification. The data contained
in this document is for guidance only. Alphasense Ltd accepts no liability for any consequential losses, injury or damage resulting from the use of this document
or the information contained within it.
( ALPHASENSE LTD ) Doc. Ref. TDS/O2E2/ Issue 12
Figure 2 shows the variation
in sensitivity caused by
changes in temperature.
See Application Note:
AAN 110 on our website
Figure 4 shows the time taken
for a typical O2-E2 sensor to
reach 90% of its maximum
output. This is termed the t
90
response time and for these
sensors is less than 10
seconds.
For further information on the performance of this sensor, on other sensors in the range or any other subject, please
contact Alphasense Ltd. For Application Notes visit "
www.alphasense.com
".
Figure 4 Response Profile
Step changes in pressure can
cause a temporary signal
transient. Positive pressure
gives an output signal
increase whilst negative
pressure causes the output
signal to decrease.
S
80
82
84
86
88
90
92
94
96
98
100
102
104
106
-30
-20
-10
0
10
20
30
40
50
Mean
"+95 conf."
"-95 conf."
Temperature
o
C
% Output (relative to output @ 20
o
C)
0
100
200
300
400
500
600
700
800
900
0
50
100
150
200
250
300
Time (seconds)
Output (uA)
0
50
100
150
200
250
300
350
0
100
200
300
400
500
600
700
800
900
Output (uA)
Output (uA)
Time (seconds)
This repeatability was tested
on sensors six months old.