ASSEMBLY
The following assembly is always required:
Gas lines, Sample lines, Exhaust gas lines
Power switch, Power cable
Equipotential bonding conductor
Signal cables
The following assembly operations may be necessary
depending on the device version:
Message printer, Line recorder
Valves and Status signals
Control unit, ChromLAN
Installation of software (see register The software)
CAUTION:
Leave the dummy plugs on the gas inlets until
you are ready to use the chromatograph. The
commissioning engineer only connects the gas
lines to the chromatograph when he has
checked them!
CAUTION: Gas connections
You must not shorten the gas connections on
the chromatograph (3 mm pipes)! Otherwise
they can become leaky because there are two
pipes into one another and soldered at the end.
Gas lines
Material: copper or stainless steel 6 mm x 1 mm
(
1
⁄
4
"). Only use very clean gas lines. Clean the lines
before assembly if necessary
Route the gas lines up to the chromatograph accord-
ing to the piping diagram. Connect a shut-off valve
upstream of each chromatograph.
Cleaning the lines
Flush with a volatile solvent (acetone, hexane, do
not use chlorinated hydrocarbons!).
Then heat the lines whilst flushing with clean inert
gas, e.g. five minutes at 200 °C. Purity of inert gas
≥ 99.999 %.
Gas connections on the chromatograph
Purging gas 6 mm Swagelock gland
Liquid injection valve (FDV) 3 mm Swagelock gland
Heated gas connection 6 mm Swagelock gland
All other gas inlets 3 x 0.5 mm
All other gas outlets 3 x 0.5 mm
IMPORTANT:
All device-specific connection diagrams can be
found in the register External piping and wiring
diagrams.
Sample lines
The sample conditioning unit must be fitted close to
the chromatograph so that connection lines are
short.
The sample line to the chromatograph should have
a downward gradient.
IMPORTANT:
Lifetime of injection valves decreases, if the
sample contains solid particles. A filter ahead
of the injection valve is essential. We recom-
mend a filter grade
- Liquide sample: 98% for 0,3µm particles
- Gaseous sample: 99,99% for 0,1µm particles.
Siemens sample conditioning units are
equipped with appropiate filters!
Exhaust gas lines
All exhaust gases of the chromatograph are routed
through the housing wall and must be routed from there
into a common exhaust line. The individual exhaust gas
lines must have a downward gradient to the common
line.
Material of common exhaust line
Stainless steel piping with i.d. of at least 12 mm (1/2")
with welded-on nozzles and screwed glands. Minimum
gradient 1 : 10.
Special with FID or FPD
With FID or FPD a conden-
sation outlet or siphon is re-
quired.
For the classified FID: PTFE
hose 8 mm i.d. x 1 mm
(5/16"), insulated with sili-
con hose if necessary. Exten-
sion using PTFE hose 10
mm i.d. x 1 mm (3/8"). Ex-
haust gas lines must not dim-
inish in size!
WARNING: Danger of explosion
A separate exhaust gas line is necessary when
using H
2
as the carrier gas in order to prevent
the constant production of an H
2
/air mixture.
Installation of chromatograph
3INSTALL.CHP, Stand Dezember 22, 1999
3
To Next Page
Loading...
