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System Installation, Start Up and Shut Down
External System Connections
Instrument Air
Connect to a supply of clean, dry house air to the regulator located on the
right side of the instrument rack. Set the regulator pressure to 75 psi.
Exhaust Line
The rack is provided with connections for two 1/2-inch OD exhaust lines.
The top exhaust marked 'Vent – Gas' allows for spent analyte gas to be
released to the atmosphere. The bottom exhaust, marked 'Vent –
Condensate' provides for spent analyte gas/condensate liquid venting. All
liquids gravity drain – do not clog tubing. The recommended maximum
tubing length is ten feet. Consult Thermo Fisher Scientific for longer
lengths.
Calibration Gases
The Omni FTIR Multi Gas CEMS has the capability of simultaneous
measurement of ten or more gases. The actual gases required will depend
on the application. Two ports are provided for the connection of separately
controlled calibration gases, marked 'Spike' and 'Span'.
Calibration gases connected to these ports are introduced into the system at
the calibration port of the M&C SP2000-H probe via the heated
calibration line.
Adjust calibration gas regulators to an output pressure of 40 psi.
Communications
Refer to Appendix B,
"Modbus
Protocol" for detailed Modbus instructions.
Ethernet
The system may be connected via Ethernet for MODBUS communications
with the IMACC server software ImaccModbusTCP.exe. Communication
to the system is provided by connecting to the ADAM 6520L Ethernet
switch. Windows Remote Desktop and Windows File Sharing may be used
while connected to Ethernet. Refer to Appendix F,
"Concentration Data
Transfer Using a Web
Server" for detailed instructions.
Serial
The system may be connected serially for MODBUS communications via
the computer's RS-232 serial port 1 using IMACC server software
ImaccModbus.exe.
CAUTION Ethernet and serial Modbus can not be implemented at the
same time.
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Thermo Fisher Scientific
Omni FTIR Multi Gas CEMS Instruction Manual
2-9
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