OM-610-1002-1 Operator’s Manual Rev 37
PDS-2010 SECTION 5 OPERATION page 31
2. When the chamber pressure is below Base Pressure (indicated by the flashing output ALM light on the
vacuum controller) and the furnace and chamber gauge temperatures are in limits (indicated by the ALM
light on both controllers not flashing), the vaporizer is enabled and begins to ramp up.
3. When the vaporizer exceeds 90°C, coating begins.
4. If a temperature fault is detected, a fault shutdown will be initiated:
• The Red Alarm light will begin to flash.
• An audio alarm will sound (this can be silenced by depressing the Alarm pushbutton).
• The 5 minute fault alarm timer will initiate. If the fault does not clear before the timer elapses, then a
shut down will initiate as described in the next step.
5. When the coating run has completed, the vaporizer will hold at set point temperature and the chamber will
return to base pressure. The 5 minute end-of-run timer begins timing out before initiating a shut down as
described in step 6.
6. Shut down occurs when the end-of-run or a fault timer has elapsed. The PROCESS START/STOP
(green) light will start to blink. The furnace, gauge tube, vaporizer, and load door heaters will be disabled.
If the shut down was caused by a fault, the red alarm will be turned on. The pump will remain on to
secure the process by preserving the vacuum.
5.11.5 End-Of-Run
CAUTION: The system will maintain vacuum until the PROCESS START/STOP button
is depressed or the VENT switch is moved to the VENT position.
1. Disable chilling of the cold trap.
2. Depress the PROCESS START/STOP button to turn off the blinking green light. Vent the chamber by
turning the Vacuum switch from the VACUUM to the VENT position. After the system pressure is at
atmospheric pressure, you must determine when to remove the probe from the cold trap for routine
cleaning.
WHEN MOVING THE COLD TRAP PROBE:
There are two opposing needs to consider when moving the cold trap probe:
• The flex line and its junction to the probe need time to warm a little so they are not damaged
by flexing.
• The probe needs to be removed promptly so the frozen material on the probe does not drip or
fall into the cold trap.
Try to allow enough time for the flex line and junction to warm before moving, but do not wait so
long that the frozen material on the probe begins to melt.
IMPORTANT:
• Avoid unnecessary flexing of the flex line to the probe. Do not pull or twist on the flex line.
Do not yank, drop, or handle the probe roughly. Mechanical shock to the probe can cause
hairline fractures resulting in failure of the chiller. A holder is provided for supporting the
probe when it is not in the cold trap, and for cleaning.
• If you must coil the flex line, form a coil at least 6 inches in diameter and allow the line to
rotate as it is coiled. The inner core is axially rigid and may rupture if not allowed to rotate
while coiling.
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