Emerson Process Management GmbH & Co. OHG1-16
X-STREAM X2
Short Form Manual
HASX2E-SFM-HS
02/2012
Tab. 1-3: Oxygen - Standard Measurement Performance Specications
1
Related to full scale
2
Related to measuring value
3
From gas analyzer inlet at gas ow of 1.0 l/min
(electronic damping = 0 s)
4
Constant pressure and temperature
5
Range 0–10…200 ppm: ≤ 5 % (5 to 45 °C /
41 to 113 °F)
6
Pressure sensor is required
7
Limited to atmospheric if internal sample pump
8
Temperatures below 0 °C (-4 °F) with thermo-
stat control only
9
Thermost. controlled sensor: 35 °C (95 °F)
10
For ranges 0–5…100 % and ow 0.5…1.5 l/min
11
Optional thermostatically controlled sensor with
temperature 60 °C (140 °F)
12
Temperature variation: ≤
10 K per hour
13
No sudden pressure surge allowed
14
Special conditions apply to model X2FD
Oxygen Sensors
Paramagnetic (pO
2
) Electrochemical (eO
2
) Trace (tO
2
)
Detection limit (4 σ)
1 4
≤ 1 % ≤ 1 % ≤ 1 %
Linearity
1 4
≤ 1 % ≤ 1 % ≤ 1 %
Zero-point drift
1 4
≤ 2 % per week ≤ 2 % per week ≤ 1 % per week
Span (sensitivity) drift
1 4
≤ 1 % per week ≤ 1 % per week ≤ 1 % per week
Repeatability
1 4
≤ 1 % ≤ 1 % ≤ 1 %
Response time (t
90
)
3
< 5 s approx. 12 s 20 to 80 s
Permissible gas ow 0.2–1.5 l/min 0.2–1.5 l/min. 0.2–1.5 l/min.
Inuence of gas ow
1
4
≤ 2 %
10
≤ 2 % ≤ 2 %
Maximum gas pressure
7 14
≤ 1500 hPa abs. (≤ 7 psig)
13
≤ 1500 hPa abs. (≤ 7 psig) ≤ 1500 hPa abs. (≤ 7 psig)
Inuence of pressure
2
– At constant temperature ≤ 0.10 % per hPa ≤ 0.10 % per hPa ≤ 0.10 % per hPa
– With pressure compensation
6
≤ 0.01 % per hPa ≤ 0.01 % per hPa ≤ 0.01 % per hPa
Permissible ambient temperature
8
0(-20) to +50 °C (32 (4) to 122 °F) 5 to +45 °C (41 to 113 °F) 5 to +45 °C (41 to 113 °F)
Inuence of temperature
1 12
(at constant pressure)
– On zero point ≤ 1 % per 10 K ≤ 1 % per 10 K ≤ 1 % per 10 K
5
– On span (sensitivity) ≤ 1 % per 10 K ≤ 1 % per 10 K ≤ 1 % per 10 K
5
Thermostat control 60 °C (140 °F)
11
none none
9
Warm-up time Approx. 50 minutes - Approx. 50 minutes
Note! 1 psi = 68.95 hPa
Note 1!
Not all data listed are applicable to all analyzer versions (e.g. 60 °C thermostatically controlled
box is not available for electrochemical and trace oxygen nor for
1
⁄219 in instruments).
Note 2!
For NDIR/UV/VIS measurements, take into account that
• sample gas may diffuse or be released by leakages into the analyzer enclosure
• if existent in the analyzer surroundings, the component to be measured may enter the enclosure.
Concentrations then may increase inside the enclosure. High concentrations of the component
to be measured inside the enclosure may inuence the measurement by unintended absorption,
which could cause drift of the measurement.
A remedy for this issue is to purge the housing with gas not containing the component of interest.
1.6 Measurement Specications
Note! Take care of the tO
2
sensor‘s documentation, providing important calibration instructions!