Interscan Corporation GF1900, Руководство пользователя

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SULFURYL FLUORIDE MANUAL REV C PAGE 11 OF 23 04/07/11
MAINTENANCE
Furnace Replacement
.
Make sure power is disconnected and the analyzer is allowed to cool.
Do not attempt to service until cooled for a minimum of one (1) hour.
Remove the thermocouple leads at terminals 3 and 6 of the terminal block. For
easy access, loosen the sensor clamp screw and lift the sensor out, placing it on the
fan. It should not be necessary to remove any tubing.
Minimize twisting by griping supports before loosening the coupling nuts. Before
installing the replacement furnace, loosen the screws on the slotted support bracket.
Drill and tap two new 6-32 holes ¼ inch from old toward door side if only two holes
are present in the clear block. This allows for newer furnaces which may be longer or
shorter than original equipment.
First test fit new furnace. Move slotted
mounting bracket screws to a position that does not distort the furnace
fittings. Failure to check this may damage furnace. Do not twist furnace
fittings as they are a press fit and can be damaged.
Position the furnace and hand-tighten the coupling nuts. Secure the bracket and
snugly tighten the coupling nuts while maintaining the position of the fitting with a
second wrench.
Note: Excessive force will result in furnace damage.
Connect
thermocouple wires and replace the sensor. Close the top to position the insulator so
it does not lie against the furnace.