210
EL3000
CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D
… 16 Specification
Fidas24
Stability
The following data only applies if all the influence variables (e.g.
flow, temperature and air pressure) are constant.
They apply to measurement ranges ≥ 50
mg org. C/m
3
; for
smaller measuring ranges these only apply if they are factory-set
in accordance with the order.
Linearity error
≤ 2 % of span to 5000 mg org.
C/m
3
,
this value applies in one (calibrated) measuring range
Repeatability
≤
0.5 % of measurement range
Zero drift
≤ 0.5 mg org. C/m
3
per week
Span drift
≤ 0.5 mg org. C/m
3
per week
Output signal fluctuation (2
σ)
≤
0.5 % of span at electronic T
90
time = 20 sec, not smaller
than 10 µg org. C/m
3
Detection limit (4
σ)
≤
1 % of span at electronic T
90
time = 20 sec, not smaller than
20 µg org. C/m
3
Influences
Oxygen dependence
≤
2 % of measured value for 0 to 21 vol. % O
2
or
≤
0.3 mg org. C/m
3
, the larger value applies in each case
Temperature effect
Ambient temperature in permissible range.
• At zero point:
≤
2 of the measuring span per 10 °C in the measuring
range 0 to 15 mg org. C/m³
• On the sensitivity:
≤
2 % of the measured value per 10 °C
Pressure effect
No effect of ambient pressure or process pressure
fluctuations within the permissible sample gas inlet pressure
range
Dynamic response
Warm-up time
≤
2 hours
T
90
time
T
90
< 1.5 s at sample gas flow = 80 l/h and electronic T
90
time
= 1 sec
