Labconco CAptureTMPortable Fuming System 3420024 - Manual (Page 19)

Chapter 4: Using the System
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Fuming Procedure
1. Ensure that the inside of the chamber and the evidence being fumed is
dry, and has no condensation on it.
2. If the relative humidity of the operating environment is less than 30%,
you may wish to increase the humidity in the clear chamber. Place
NO MORE THAN 1-2 drops of water in a heating pan, open the
heater door, and place it in one of the heater receptacles. Close the
heater door, as shown in Figure 4-7.
Heater receptacles
Place pan here to cool during
venting
Heater door latch (slide to open)
3. Open the heater door. Place approximately 4-6 drops of CA glue in a
heating pan, and place it in one of the heater receptacles, and
immediately close the door.
Note: Do not use more than 8 drops of CA per development cycle.
4. Carefully observe the control evidence for the development of prints.
Print development times may vary, depending on the amount of CA
used, relative humidity, heater temperature, etc. Typical development
times run 3-5 minutes with 4 drops of CA, at 350
o F (177 o C).
5. When the prints are developed as desired, switch the control switch
from “Heat” to “Vent.” Open the heater door, and place the heating
pan containing the remaining CA residue on the space between the
heater receptacles. This will allow the CA heating pan to cool, and
stop generating fumes.
6. Let the chamber vent for at least 3-5 minutes before opening the
chamber and retrieving the evidence.
7. If more evidence needs to be developed, turn the control switch to
“Heat” and go back to step #1 and repeat.
8. If no more evidence needs to be developed, push the control switch to
the center “OFF” position.
9. Remove any heating pans from the heater receptacles.
Figure 4-7