Forma Scientific, Inc.
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5-3
5.4 Replacing the Optional Recorder and Probe(s)
De-energize all potential sources of energy to
this unit and lockout/tagout their controls.
(O.S.H.A. Regulation, Section 1910-147.)
1. Open the incubator door, and locate the probe mounting plate attached to the center
of the right interior wall. Remove the mounting plate.
2. Single pen recorders have only one long stainless steel probe, attached to the lower
end of the back of the mounting plate. Remove the probe by carefully sliding it out
of the housing.
Dual pen recorders have the stainless steel probe plus a wet bulb probe attached to
the back of the mounting plate. Remove the screws securing the mounting plate and
slide the wet bulb probe out of its housing.
3. Remove the screws securing the ceiling of the incubator and remove the ceiling.
4. Remove the top three screws on both edges of the right duct sheet.
5. Lean the duct sheet out in order to remove the permagum seal from around the
probe access hole.
6. Open the control panel door, and remove any permagum from around the access
hole.
7. Pull the probe(s) carefully up through the hole.
8. Follow the probe cable(s) to the back of the recorder, and carefully clip any plastic
ties holding the cable(s) to other wiring.
9. Remove the three screws securing the recorder and pull it carefully out from the
front of the control panel.
10. Replace the recorder with the correct Forma part.
Note:
When replacing the recorder and probe(s), retie the probe cable(s) to the
existing wires.
Avoid making sharp bends in the probe capillary tubes.