AO2000
CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
351
Magnos206: Operating specifications
Linearity deviation
≤
0.5 % of span
Repeatability
≤
50 ppm O
2
(time base for gas exchange
≥
5 minutes)
Zero drift
≤
3 % of span of the smallest measurement range (per order) per week,
minimum 300 ppm O
2
per week following prolonged transport and storage
time the drift can be higher during the first weeks of operation.
Sensitivity drift
≤
0.1 vol.% O
2
per week or
≤
1 % of measured value per week (not cumula-
tive), the smaller value applies;
≤
0.25 % of the measured value per year
Output fluctuation (2
σ
)
≤
25 ppm O
2
at electronic T90 time (static/dynamic) = 3/0 s
Detection limit (4
σ
)
≤
50 ppm O
2
at electronic T90 time (static/dynamic)= 3/0 s
Flow influence
≤
0.1 vol.% O
2
in permissible range
Associated gas effect
Influence effect of the associated gases is described in the IEC 61207-3:2002
"Gas analyzers – Expression of performance – Part 3: Paramagnetic oxygen
analyzers"
Temperature influence
At zero point:
≤
0.02 vol.% O
2
per 10 °C;
On sensitivity:
≤
0.1 % of the measured value per 10 °C.
Thermostat temperature = 64 °C; ambient temperature in permissible range
Air pressure effect
At zero point: no influence effect;
On sensitivity without pressure correction:
≤
1 % of the measured value per
1 % air pressure change;
On sensitivity with pressure correction by means of internal pressure sensor:
≤
0.1 % of the measured value per 1 % of air pressure change; for highly sup-
pressed measurement ranges
≤
0.01 % of the measured value per 1 % of air
pressure change or
≤
0.002 vol.% of O
2
per 1 % pressure change, whichever is
greater.
Pressure sensor working range: p
abs
= 600 to 1250 hPa
Power supply influence
24 V DC ± 5 %:
≤
0.4 % of span
Position influence
Zero-point shift
≤
0.05 vol.% O
2
per 1° deviation from horizontal orientation.
Position has no effect on the hard-mounted unit.
T
90
time
T
90
≤
3.5 to 10 s at sample gas flow = 10 l/h and electronic T90 time (static/
dynamic) = 3/0 s, gas switching from N
2
to air (applies to a gas analyzer with
one analyzer module)
