USER MANUAL | ICOS | INSTRUCTIONS | UM/ICOS-EN REV. B.2
Appendix E: Multi-Port Inlet Unit
(Optional)
The
Multiport Inlet Unit
(MIU) directs samples of multiple unknown gases and multiple
reference gases through a series of inlet ports and digitally controlled valves directly into
the inlet port of the analyzer. The gas manifold control screen (Figure 89) controls which
gases are introduced into the inlet port of the analyzer in what order and for how long.
For the GLA351-CCIA3, the Zero Air Sequence must not be removed. Refer
to the
MIU
section on page 66 for more details.
By sampling references periodically during an ongoing data run, you can post-correct the
data for long-term drift when active calibration cannot be done.
ABB-LGR offers two versions of the MIU:
8 port
16 port
Figure 89 shows the front panel of a 16 port MIU.
Figure 89: 16 Port MIU Front Panel
Control of the MIU is unidirectional. The analyzer does not receive
feedback on the MIU state. If the MIU is enabled in the analyzer
Setup
Panel
, the data file is tagged with MIU valve descriptions whether or not
the MIU is properly connected. The data file simply logs the condition of
the control signal to the MIU.
To Next Page
Loading...
Need help?
General
