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Chapter 2
Start the Ex Analyzer Module
F
Check the Installation Make sure the Ex analyzer module is correctly installed before carrying out any
42/24-12-2 EN
Operation and Maintenance
CAUTION!
If the Ex analyzer module must be opened for operation or maintenance, the
instructions on the following warning label (affixed to the Ex analyzer module
housing) must be observed:
Before opening, disconnect power and wait 10 minutes!
Follow
• the instructions and notes in the "Analyzer System Start-Up" chapter of
Operator's Manual 42/24-10 EN,
• the following special instructions and notes as well as
• the notes in the "Electrical Equipment in Explosion Hazard Zones" sections in
the Annex.
start-up procedures. Use the following check list:
Check
• Do the conditions at the installation site (zone rating, explosion group,
temperature class) match the information on the identification plate?
• Is the Ex analyzer module not installed outdoors?
• Is the Ex analyzer module securely fastened?
• Is the Ex analyzer module housing intact?
• Are all flame barriers and sealing screws present?
• Are all parts of the housing fully tightened and secured with set screws?
• Are all gas lines correctly connected?
• Is the pressure sensor connection not joined with the sample gas path?
• Are all electrical lines properly arranged and secured?
• Is the external potential compensation connection or the green/yellow
wire of the three-wire 24-VDC power supply cable connected to the local
potential compensation point?
• Are the proper cable types used for lines passing through wiring
connectors (outer diameter of 9-11 mm)?
• Are the cables firmly seated in the wiring connectors?
• Are the 3-conductor 24-VDC connecting cable and system bus cable
attached to the Ex analyzer module not shortened to less than 1 meter
(note the marks on the cable) and free of damage?
• Are all devices needed for gas conditioning, calibration and exhaust
processing correctly connected and ready for use?
• Is the device version designed for operation with sample gases at
positive pressures? The identification plate should read: "See Special
Conditions for Sample Gas Pressure".
Advance Optima Ex Analyzer Modules Operator's Manual
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