Emerson Rosemount CT5800 Manual page 136

Troubleshooting and diagnostics
September 2019
7.15.3 Replacing the Moxa analog input unit
DANGER
ELECTRIC SHOCK
This article is in accordance with IEC 60079-0: 2011 Clause 30.
Death or personal injury may result if this is not observed.
The analyzer uses mains voltage that is dangerous to life. Make sure that the circuit
breakers are set to OFF and tagged off before opening the front cover.
WARNING
HEAVY ITEM
The analyzer weighs 176.4 lb. (80 kg). Failure to properly handle the analyzer may cause
injury to personnel.
Use a minimum of two people when lifting and transporting the equipment.
Wear suitable protective gloves and protective footwear.
WARNING
BURNS
Some parts of the analyzer may be heated to 150 °F (65 °C). Failure to allow sufficient
cooling may cause serious burn injury to personnel.
Do not touch any part of the analyzer.
Assume all parts of the analyzer are hot unless it has been switched off and allowed to
cool down.
Always wear proper protective equipment when handling the analyzer.
Switch off the analyzer and allow it to cool for at least two hours before fitting,
removing, or performing any maintenance.
The analysis cell is insulated against heat loss. Allow the analyzer to cool for at least 12
hours before performing any maintenance on, or in the vicinity of, the analysis cell.
If burns occur, seek immediate medical treatment.
Procedure
1. Shut down the analyzer as described in
2. Open the enclosure as described in
3. Disconnect the Moxa analog I/O connector from the top of the Moxa analog IN/OUT
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unit.
Shutdown procedure.
Opening the enclosure.
Reference Manual
00809-0100-5800
Emerson.com/Rosemount