Exhaust System - Thermo Scientific iCAP RQ ICP-MS Pre-Installation Requirements Manual

Exhaust System

Thermo Scientific
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
1
Labeled Components: 1=instrument exhaust, 2=plasma gas exhaust
Figure 3-1. Exhausts of iCAP RQ ICP-MS instrument
The instrument exhaust (1 in
generated by the electronics of the instrument.
The plasma gas exhaust (2 in
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
iCAP RQ Pre-Installation Requirements Guide (P/N BRE0009927, Revision A)
Figure
Figure 3-1) is used to remove heat
Figure 3-1) is used to remove gases and
▲
3
/h) by the following equation:
2
 
d
   
-- -
f = v 3600
 
2
Operating Environment
Exhaust System
3-1.
2
3-3