Thermo Scientific 42i Instruction Manual page 255

Ozone Particulate
NO -to-NO Converter
2
I/O Expansion Board
Assembly
25 Pin Terminal
Board Assembly
Terminal Block and
Cable Kits
Thermo Fisher Scientific
The ozone particulate filter minimizes the potential for contamination of
the capillary and reaction chamber by trapping any particulate matter
Filter
before passing through the capillary and reaction chamber.
The Model 42i includes a Molybdenum NO
equipment. A stainless steel converter is available as an option.
The I/O expansion board provides six analog current output channels (0-
20 mA or 4-20 mA) and eight analog voltage inputs (0-10V). The DB25
connector on the rear panel provides the interface for these inputs and
outputs.
The 25-pin terminal board assembly is included with the I/O expansion
board. Refer
chapter for information on attaching the cable to the connector board. For
associated part numbers, refer to
Components" on page 7-6.
The optional terminal block and cable kits provide a convenient way to
connect devices to the instrument. These kits break out the signals on the
rear panel connector to individual numbered terminals.
Two types of terminal block and cable kits are available. One kit is for the
DB37 connectors and can be used for either the analog output connector
or the relay output connector. The other kit is for the DB25 connector and
can be used for the optional I/O expansion board. For associated part
numbers, refer to
Each kit consists of:
one six-foot cable
●
one terminal block
●
one snap track
●
Note Supporting all of the connections on units with the optional I/O
expansion board requires:
two DB37 kits
●
one DB25 kit
●
"Terminal Board PCB
"External Device Connection
"External Device Connection
-to-NO converter as standard
2
Assemblies" in the "Installation"
Components" on page 7-6.
Model 42i Instruction Manual
Optional Equipment
Ozone Particulate Filter
9-13