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


  Open as PDF
of 434
 
Emerson Process Management GmbH & Co. OHG 3-17
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
3
Measuring Principles
3.4 Trace Moisture Measurement
3.4.2 Accompanying Gases
Component
Maximum Permitted
Concentration / ppm
Maximum Permitted Dew-
point / °C
Acetylene (Ethyne) C
2
H
2
1
-20
Ammonia NH
3
1000 -20
Aromatic alcohols no limit no limit
Benzene C
6
H
6
no limit no limit
Bromine Br
2
no limit -20
Carbon dioxide CO
2
no limit no limit
Carbon disulphide CS
2
no limit no limit
Carbon monoxide CO no limit no limit
Carbon tetrachloride CCl
4
no limit no limit
Carbon tetrauoride CF
4
no limit -20
Chlorine Cl
2
not permitted –
Dichlorodiuoromethane CCl
2
F
2
no limit -20
Ethane C
2
H
6
no limit no limit
Ethylene (Ethene) C
2
H
4
no limit no limit
Ethylene oxide CH
4
O not permitted –
Exhaust gases no limit no limit
Fluorine F
2
10 -20
Glycol (Ethane-1,2-diol) HOCH
2
CH
2
OH no limit no limit
Halogenated hydrocarbons Consult with Emerson
Hydrobromic acid HBr not permitted –
Hydrochloric acid HCl not permitted
2
–
Hydrouoric acid HF 500 -20
Hydrogen peroxide
H
2
O
2
not permitted –
Hydrogen sulphide H
2
S no limit
3
no limit
Mercury Hg not permitted
4
-
Methane CH
4
no limit no limit
Methanoic acid HCOOH not permitted –
Methanol CH
3
OH
5
no limit
Methylethyl glycol C
4
H
11
O no limit no limit
Natural gas no limit no limit
Nitric acid HNO
3
10 -20
Nitrogen dioxide NO
2
no limit -20
Nitrous oxide N
2
O no limit -20
Tab. 3-7: Limitations on Gases
Several gases may affect the sensor, so consider the following limits:
(I)
 previous next