Emerson Process Management GmbH & Co. OHG
1-16
X-STREAM XEFD
Instruction Manual
HASXEDE-IM-EX
07/2017
1.8 Measurements Specifications
Standard and Enhanced Performance Specifications
Tab. 1-7:
IR, UV, VIS, TCD – Standard and Enhanced Measurement Performance Specifications
Tab. 1-8:
Trace Moisture – Standard Measurement Performance Specifications
1
If installed in series to another measurement system, e. g. IR channel
2
Special conditions apply to pressures above 1100 hPa
(1.5 psig) up to 1500 hPa (7 psig)
NDIR/UV/VIS
Thermal Conductivity (TCD)
Standard Spec
Enhanced Spec
Standard Spec Enhanced Spec
Detection limit (4 σ)
1 4
≤
1 %
≤
0.5 %
≤
1 %
≤
0.5 %
Linearity
1 4
≤
1 %
≤
1 %
Zero-point drift
1 4
≤
2 % per week
≤
1 % per week
≤
2 % per week
≤
1 % per week
Span (sensitivity) drift
1 4
≤
0.5 % per week
≤
1 % per month
≤
1 % per week
Repeatability
1 4
≤
0.5 %
≤
0.5 %
Response time (t
90
)
3
4 s
≤
t
90
≤
7 s
5
15 s
≤
t
90
≤
30 s
6
Permissible gas flow
0.2–1.5 l/min.
0.2–1.5 l/min.
Influence of gas flow
1 4
≤
0.5 %
≤
1 %
11
Maximum gas pressure
8 14
≤ 1500 hPa abs. (≤
7 psig)
≤ 1500 hPa abs. (≤
7 psig)
Influence of pressure
2
– At constant temperature
≤
0.10 % per hPa
≤
0.10 % per hPa
– With pressure compensation
7
≤
0.01 % per hPa
≤
0.01 % per hPa
Permissible ambient temperature
9
0 (-20) to +50 °C (32 (-4) to 122 °F)
0 (-20) to +50 °C (32 (-4) to 122 °F)
Influence of temperature
1 13
(at constant pressure)
– On zero point
≤
1 % per 10 K
≤
0.5 % per 10 K
≤
1 % per 10 K
≤
0.5 % per 10 K
– On span (sensitivity)
≤ 5 % (0 to +50 °C / 32 to 122 °F)
≤
1 % per 10 K
Thermostat control
6 12
none / 60 °C (140 °F)
5
none / 60 °C (140 °F)
10
Warm-up time
6
15 to 50 minutes
5
approx. 50 minutes
Note! 1 psi = 68.95 hPa
1
Related to full scale
2
Related to measuring value
3
From gas analyzer inlet at gas flow of 1.0 l/min
(electronic damping = 0 s)
4
Constant pressure and temperature
5
Dependent on integrated photometer bench
6
Depending on measuring range
7
Pressure sensor is required
8
Limited to atmospheric if internal sample pump
9
Temperatures below 0 °C (-4 °F) with thermostat
control only
10
Thermost. controlled sensor: 75 °C (167 °F)
11
Flow variation within ± 0.1 l/min
12
Optional thermostatically controlled box
with temperature 60 °C (140 °F)
13
Temperature variation:
≤
10 K per hour
14
Special conditions for > 1100 hPa abs
Note! Do not calibrate, see special calibration notes in the X-STREAM
Enhanced
instruction manual!
Note!
1 psi = 68.95 hPa
Trace Moisture (tH
2
O)
Measurement range
-100 to -10 °C dew point (0
–100…3000 ppm)
Measurement accuracy
±2 °C dew point
Repeatability
0.5 °C dew point
Response time (t
95
)
5 min (dry to wet)
Operating humidity
0 to 100 % r.h.
Sensor operating temperature
-40 to +60 °C
Temperature coefficient
Temperature compensated across operating temperature range
Operating pressure
2
Depending on sequential measurement system, see analyzer specification
1
max. 1500 hPa abs / 7 psig
Flow rate
Depending on sequential measurement system, see analyzer specification
1
0.2 to 1.5 Nl/min
