Emerson Process Management GmbH & Co. OHG
3-24
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
10/2012
3.6 Measurement Specifications
Special Performance Specifications for Gas Purity Measurements (ULCO & ULCO
2
)
Tab. 3-14:
Special Performance Specifications for Gas Purity Measurements (Low
R
anges)
1
Related to full scale
2
Constant pressure and temperature
3
Within 24 h; daily
zero calibration requested
4
Within 24 h; daily span calibration recommended
5
Related to measuring value
6
Temperature variation:
≤
10 K per hour
7
From gas analyzer inlet at gas flow of 1.0 l/min
8
Barometric pressure sensor is required
9
Whichever value is higher
10
Limited to atmospheric if internal sample pump
11
Special conditions apply to model XEFD
0–10…< 50 ppm CO
0–5…< 50 ppm CO
2
Detection limit (4 σ)
1 2
< 2 %
Linearity
1 2
< 1 %
Zero-point drift
1 2 3
< 2 %
resp. < 0.2 ppm
9
Span (sensitivity) drift
1 2 4
< 2 %
resp. < 0.2 ppm
9
Repeatability
1 2
< 2 %
resp. < 0.2 ppm
9
Response time (t
90
)
7
< 10 s
Permissible gas flow
0.2–1.5 l/min.
Influence of gas flow
1 2
< 2%
Maximum gas pressure
10 11
≤ 1500 hPa abs.
(
≤
7 psig)
Influence of pressure
5
– At constant temperature
≤
0.1 % per hPa
– With pressure compensation
8
≤
0.01 % per hPa
Permissible ambient temperature
+15 to +35 °C (59 to 95 °F) +5 to +40 °C (41 to 104 °F)
Influence of temperature
6
(at constant pressure)
– On zero point
< 2 % per 10 K
resp. < 0.2 ppm per 10 K
9
– On span (sensitivity)
< 2 % per 10 K
resp. < 0.2 ppm per 10 K
9
Thermostat control
none
60 °C (140 °F)
Note! 1 psi = 68.95 hPa
Summary of Contents for Rosemount X-Stream Series
Page 535: ......
