Emerson Process Management HASX2E-IM-HS Carbon Monoxide Alarm User Manual


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Emerson Process Management GmbH & Co. OHG3-20
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
3.5 Measurement Specications
Tab. 3-9: IR, UV, VIS, TCD - Measurement Performance Specications
The specications given in these tables al-
ways apply to the physical measuring ranges,
as listed e.g. in the INFO-RANGES.. menu
(parameters „MinRange“ and „MaxRange“).
Scaling or zooming ( 5.7.4,
page 5-20) cannot improve ana-) cannot improve ana-
log output specifications to
values better than specied by
the physical measuring ranges
Important Notes Concerning Measurement Specication Data
All performance data is veried during the manufacturing process for each unit by the following
tests:
• Linearization and sensitivity test
• Long term drift stability test
• Climate chamber test
• Cross interference test (if applicable)
Measurement Performance Specications
NDIR/UV/VIS Thermal Conductivity (TCD)
Detection limit (4 σ)
1 4
≤ 1 % ≤ 1 %
Linearity
1 4
≤ 1 % ≤
1 %
Zero-point drift
1 4
≤ 2 % per week ≤ 2 % per week
Span (sensitivity) drift
1 4
≤ 0.5 % per week ≤ 1 % per week
Repeatability
1 4
≤ 1 % ≤
1 %
Response time (t
90
)
3
4 s ≤ t
90
≤ 7 s
5
15 s ≤ t
90
≤ 30 s
6
Permissible gas ow 0.2–1.5 l/min. 0.2–1.5 l/min. (
+
0.1 l/min)
Inuence of gas ow
1 4
≤ 0.5 % ≤ 1 %
11
Maximum gas pressure
8 14
≤ 1500 hPa abs. (≤ 7 psig) ≤ 1500 hPa abs. (≤ 7 psig)
Inuence 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)
Inuence of temperature
1 13
(at constant pressure)
– On zero point ≤ 1 % per 10 K ≤ 1 % 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 ow 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 thermo-
stat 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), not X2GK
13
Temperature variation: ≤
10 K per hour
14
Special conditions apply to model X2FD
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