Thermo Electron 3940 Series, Руководство по эксплуатации и техническому обслуживанию

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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. The recorder probe is attached to the lower end of the back of the
mounting plate. Remove the probe by carefully sliding it out of the
housing.
3. Remove the screws securing the right side air dam.
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. Remove the four screws located on the top and bottom of the control
panel and open the control panel door. 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 four screws securing the recorder and pull it carefully out
from the front of the control panel.
10. Replace the recorder with the correct part.
Note
When replacing the recorder and probe(s), retie the probe cable(s) to
the existing wires.
V
Place an accurate thermometer(s) in the chamber next to the recorder’s
probe(s). After about three minutes, compare the thermometer with the
chart recorder. For 2 pen operations, also compare the second
thermometer.
Note
For 2 pen operations, first select the pen to be
calibrated. Hold down the #1 arrow for the red (#1)
pen or the #2 arrow for the blue (#2) pen (Figure 4-
10), until the light goes out. Adjust as necessary.
V
If an adjustment is necessary, press either the #1 or #2 arrow to move pen
left or right. The arrow must be held about five seconds before pen begins
to move. Release the arrow when pen matches thermometer.
Model 3940 Series 4-7 Thermo Electron Corporation
Replace Optional
Recorder and Probe(s)
Section 4
Service
Calibrate the Recorder
Figure 4-10. Arrows