PERFORMANCE CHARACTERISTICS
Characteristics
Min.
Typ.
Max.
Unit
Output inactive start up delay (heater warm up)
60
s
Initial warm up time (till stable output)
5
10
min
Measuring ranges
25% Configuration
100% Configuration
0.1
(1)
0.1
(1)
25
100
% O
2
Accuracy After Calibration
(2) (3)
1
% O
2
Repeatability After Calibration
(2)
0.5
% O
2
0-10 V
DC
Output Resolution
0.01
V
4-20mA Output Resolution
0.01
mA
RS232 Output Resolution
0.01
% O
2
Reaction time (adaptive output filtering in normal air)
1
s
Notes:
(1)
Prolonged operation below 0.1% O
2
can damage the sensing element.
(2)
Assuming barometric pressure remains constant.
(3)
As the O
2
sensor measures the partial pressure of oxygen (PPO
2
) within the measurement gas deviations in the
Barometric Pressure (BP) from that present during calibration will cause readout errors proportional to the
change. For example if the sensor was reading 21% O
2
at 1013.25mbar and the BP increased by 1% the sensor
readout would also increase by 1% to 21.21% O
2
.
7823
Oxygen Analyser
ECO
line
7823 Oxygen Analyser
E instruments
Page
3
of 12
