Ametek 900

5-50 | Model 900 ADA / Model 930 Sulfur Pit Analyzers
15. Reinstall the Heater Plate in the Oven:
Slightly loosen the Seal Body gland nut (inside the Electronics
Enclosure) and tilt the top of the Heater Plate toward the back of the
Oven.
OPTIONAL
If the entire Heater Plate was removed from the Oven to work on it,
reassemble Heater Plate (see Step 14 for important information about
reassembling the Top and Bottom Heater Plates).
With the top of the Heater Plate tilted toward you, place the bottom of
the Heater Plate in the bottom of the Over, taking care not to damage
the wires. Tilt the Heater Plate toward the Oven Wall.
Rotate the Seal Body/Thermal Insulating Tube toward the Oven until
the top of the Thermal Insulating Tube is in line with the threaded
holes in the bottom of the Oven.
Guide the wires from the Heater Plate through the Thermal
Insulating Tube and into the Seal Body.
Ensure the threads of the Thermal Insulating Tube are clean and then
thread the tube back into the Heater Plate, taking care not to cross-
thread the threads. Tighten the tube until an increase in resistance is
felt. Do not overtighten it.
Replace the (4) lock washers and M6 x 35 screws to secure the Heater
Plate to the Oven wall. Gently push and pull on the Heater Plate
while tightening the screws, to ensure it is properly seated against the
Oven wall.
Tighten the gland nut on the Seal Body.
16. Terminate all wiring to Terminal Strips J1, J2 on the Heater
Termination board, as per your notes (see also Figure 5-10).
Slide the Seal Cover over the Seal Body and secure it with (2) M6 x 16
and (2) M6 x 40 screws. Replace the retaining ring in the groove in the
Thermal Insulating Tube.
Replace the Oven Plug.
17. If the Aspirator/Sample Line Bracket was removed, replace it on the
Heater Plate (2 screws).

NOTE