ThermoForma 3033, Operating And Maintenance Manual

Page: 24 / 47

14. Using the arrow buttons, change the displayed value by
an amount equal to the amount the Temperature
Alarm/Monitor display was changed.
Example: If the reference instrument reads 37.5 and the
Temperature Alarm/Monitor reads 37.0, the display should be
increased 0.5. Therefore, the Temperature Control display must
also be increased 0.5.
15. Turn incubator off, then back on without pressing any
keys.
16. Return the Program/Run key switch to Run.
5.3 Changing the CO
2
Filter P/N 770001
Note: Under normal use, the CO
2
filter should be serviceable
for about two years. If the CO
2
filter becomes clogged, replace
it with Thermo Forma stock #770001.
1. Turn the incubator off and unplug it.
2. Remove the screws securing the left side access panel.
3. Remove the panel by lifting it up and out. Set it aside.
4. Locate the CO
2
filter about halfway up the left side. (It
will be connected to the hose leading to the CO
2
gas fit-
ting on the back of the incubator. (See Figure 5-2.)
5. Remove and replace the filter by forcing
the plastic hose clamps open or cutting
them.
6. Install the new filter and refasten the
plastic hose clamps or install new clamps.
7. Dispose of the old filter following
approved biological safety procedures.
5.4 Changing the Zero Sample Filter
P/N 770001
Note: Under normal use, the service life of
the Zero Sample filter is about two years. If
the filter becomes clogged, replace it with
Thermo Forma stock #770001.
1. Turn the incubator off and unplug it.
2. Remove the screws securing the side
access panel.
3. Remove the panel by lifting it up and
out. Set it aside.
4. Locate the Zero Sampler Filter installed
in the clear vinyl tubing connected between
the upper solenoid valve and the air pump
located beneath the reservoir bottle. See
Figure 5-2.
5. Remove and replace the filter by forcing the plastic
hose clamps open, or cutting them.
6. Install the new filter and refasten the plastic hose
clamps, or install new clamps.
7. Dispose of the old filter following approved biological
safety procedures.
5.5 Changing the Microbiological Filter P/N 760043
Note: Under normal usage, the service life of the microbiologi-
cal filter is about two years. Replace the filter with Thermo
Forma stock #760043.
1. Turn the incubator off and unplug it.
2. Remove the screws securing the side access panel.
3. Remove the panel by lifting it up and out and set it aside.
4. Locate the cover plate in the upper left corner and
remove it.
5. Remove the fiber insulation to expose the filter. Refer to
Figure 5-2.
6. Cut the small plastic tie wrap which secures the solenoid
valve to the one inch plastic tubing.
Model 3033 and 3860 Series _________________________________________________________________Service
Figure 5-2
5 - 3
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com