8
MODEL SMO5CR-2 (CR1-2) CLEAN
ROOM READY INSTRUCTIONS
This oven has been designed to operate at class 100 standards. It is not shipped clean room
ready and the instructions below must be followed for proper installation.
See Figure 2
6.1
BURN-IN OF THE HEPA FILTER
Before using this oven, it is important that the filter be burnt-in properly. During burn-in,
the Hepa filter will off gas. Because of this the intake and exhaust ports must be open,
with the exhaust ports being ducted outside. A material safety data sheet is included with
your operation literature for reference. Note that you should read Section 7.0 and have a
clear understanding of how to operate the unit prior to following this procedure.
A.
To burn in filter:
1.
Set oven at: 125
C for 1 hour;
150
C for 4 hours;
175
C for 1 hour;
200
C for 1 hour.
2.
If operating temperature is higher than 200
C, continue the cycle of one
hour at 25
increments until the operating temperature is achieved.
B.
After burn-in, the interior must be disassembled and cleaned. Make sure unit is
unplugged and cooled down before disassembly. When disassembling, use an
8/32 nut driver for removing all the cap nuts. Remove the bottom liner insert
before removing the liner side inserts. Do not remove the Hepa filter cover. After
burn-in, the filter is very delicate (like the mantel of a lantern) and will fall apart.
The casing should only be removed when replacing the filter.
6.2
CONTROL AREA EXHAUST
As part of this design the control compartment is sealed and requires a minimum of 30
CFM (Cubic Feet Per Minute) to be drawn from the control compartment exhaust port.
This is required to limit the control compartment temperature and maintain Class 100
integrity. If you are unable to exhaust the minimum 30 CFM from the control
compartment, then you must limit the maximum operating temperature to 200
C.
Operation of the unit above 200
C, without moving the required 30 CFM through the
control compartments exhaust, will result in control degradation and process failure. Not
supplying the required 30 CFM may also keep the unit from operating at class 100
specifications by allowing particulars from the control compartment to escape into the
room.
Section
6
Summary of Contents for SMO5CR-2
Page 9: ...9 Figure 2...
Page 19: ...19 WIRE DIAGRAM...