Fig. 1-2: Optional Heated Area - Emerson Rosemount Analytical X-STREAM X2 Series Instruction Manual

Instruction Manual
HASX2E-IM-HS
10/2012
1.2.6.7 Optional Heated Area
The physical components can be optionally
separated from the electrical components
by means of a special box (not an option for
½ 19 in units). This can be done for one or
both of the following purposes:
Firstly, the box allows the physical compon-
ents to be regulated to a temperature of ap-
prox. 60°C, avoiding condensation of gases
or the influence of varying environmental
temperatures.
Secondly, the box can be purged with, for
example, inert gas. The purge gas is first fed
through a separate fitting, purges the elec-
tronic components, then floods the box and
leaves the instrument via another fitting.
Purging in this manner can be useful when
measuring very low concentrations (e.g. of
Insulating cover
Physical
components
(example)
The figure shows the heated
area with the insulating cover
removed.
Fig. 1-2: Optional Heated Area
Emerson Process Management GmbH & Co. OHG
1.2 Configuration of Gas Lines
CO or CO
avoids adulterant outside influences.
Alternatively, purging can be used to secure
enhanced protection for electronic parts and
operators from corrosive or toxic gases: any
leaking gas is expelled from the housing and
does not escape into the vicinity of the unit or
come into contact with any electronic compo-
nents located outside the box.
In either case, the purge gas outlet should be
connected to an exhaust gas line.
X-STREAM X2
): the expulsion of ambient air
2
Heated moun-
ting panel
Cable support for
signal wires
1-7