
Forma Scientific, Inc.
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5-2
5. Open the control panel.
6. Pull the overtemp probe up through the access hole and into the control panel.
7. Follow the wires from the probe to the thermostat mounted on the control panel.
Clip the plastic ties holding the overtemp cable to the existing wiring.
8. Pull the overtemp knob on the control panel off.
9. Remove the two screws that hold the overtemp assembly to the control panel.
10. Disconnect the two wires from the back of the thermostat assembly.
11. Pull the entire assembly out of the panel, and remove the unit.
12. Replace the thermostat and probe.
Note: Reseal the probe access hole with permagum, and retie the overtemp cable
to the existing wires after replacing the probe.
5.3 Replacing the Humidity/Temperature Sensor
De-energize all potential sources of energy to
this unit and lockout/tagout their controls.
(O.S.H.A. Regulation, Section 1910-147.)
1. Locate the probe mounting plate in the center of the right side of the incubator
interior.
2. Open the mounting plate by removing the screws that hold it in place.
3. Locate the humidity sensor mounted on the inside of the panel in a black housing.
Note the angle of the probe.
4. Grasp and unplug the probe from the probe cable.
5. When replacing the humidity sensor, be sure to mount the probe at the same angle
as it was originally mounted.