Operating Environment
Exhaust System
Thermo Scientific
iCAP RQ Pre-Installation Requirements Guide (P/N BRE0009927, Revision A)
3-3
Exhaust System
An exhaust system is needed for the instrument to remove gases that
may contain ozone and other noxious substances. Two exhaust ports are
situated at the top of the instrument. See
.
The instrument exhaust (
1
) is used to remove heat
generated by the electronics of the instrument.
The plasma gas exhaust (
2
in
) is used to remove gases and
heat generated by the plasma.
NOTICE
A flexible exhaust hose must be connected to the exhausts
during operation of the instrument. Thermo Fisher Scientific will only
install your iCAP RQ system when an adequate exhaust system is
present and functioning. Exhaust gas venting must comply with all local
environmental codes.
▲
The exhaust ports at the iCAP RQ instruments have an outer diameter
of 60.3 mm for both plasma exhaust and heat exhaust. Flexible hoses
with 63 mm ID are recommended for connection to the exhaust ports.
Thermo Fisher Scientific delivers hoses with a length of 6 m. The
exhaust hoses should be equipped with a throttle valve.
The velocity
v
at the end of the hose with an inner diameter (
d
) of
63 mm connected to the exhaust port of the iCAP RQ instrument can
be measured with an anemometer (values in m/s) and can then be
converted to an exhaust flow
f
(m
3
/h) by the following equation:
Labeled Components: 1=instrument exhaust, 2=plasma gas exhaust
Figure 3-1.
Exhausts of iCAP RQ ICP-MS instrument
1
2
f
d
2
---
2
v
3600
=
