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Maintenance, Troubleshooting and Service

Routine maintenance should be performed on the instrument to prolong the life of the

instrument and minimize downtime. Basic operational troubleshooting procedures

should be limited to replacement of defective sub-system components. For detailed

instructions concerning service and repair, contact the CEM Service Department or

the local subsidiary or distributor.

Routine Maintenance

A monthly routine preventive maintenance program is recommended to ensure opti-

mum performance of the Phoenix.

NOTE

Failure to properly maintain the Phoenix instrument will nullify the

instrument warranty.

Door, Seals and Interlocks – Carefully inspect the door, door seals, and door interlock

to verify that they are clean and working properly. Ensure that there is no loosening

of or damage to the door hinges or latch. Ensure that the door closes securely.

Cleaning Recommendations – Routine cleaning of the instrument is necessary to

prevent carbon buildup which can restrict air ﬂ ow through the system, clog exhaust

ports, and render the thermocouple inoperative. Scheduled (monthly) cleaning of the

door seals, cavity interior and exhaust blower are necessary. For applications where

carbonaceous buildup is more prevalent, a weekly inspection should be performed

to detect the necessity for more frequent cleaning. Inspect and clean the Phoenix

as follows:

1. Permit the instrument interior surfaces to cool to room temperature. Unplug the

instrument from the electrical outlet.

2. Remove the screw in the thermocouple access door on top of the instrument

cover and remove the access door.

3. Loosen the thermocouple nut and slide the thermocouple out of the instrument

cavity. Using a soft cloth, clean the thermocouple. Inspect the thermocouple for

any pitting and/or wear. Replace the thermocouple as required. Place the

thermocouple in an area where it will be safe from damage.

4. Remove the mufﬂ e furnace chamber.

5. Loosen the exhaust hose clamp and remove the exhaust hose.

CEM Phoenix User Manual

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