Thermo Electron 3940 Series, Руководство по эксплуатации и техническому обслуживанию

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Warning
High voltage is present behind control panel. Servicing must be
performed only by qualified electrical service personnel.
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The infinite heater control is located in
the left side of the incubator top
compartment behind the control panel
door. The control varies the amount of
door heat from no heat (zero) to full heat
(100) as indicated by the dial face. If the
knob is turned past zero, a “click”
indicates that all power to the door is shut
off. If turned past 100, a similar “click”
indicates that the heat is set at maximum.
Initially, the units leave the factory with the dial set at 40. If desired, the
amount of heat can later be reduced until moisture appears on the door,
then the heat advanced. However, in fluctuating ambient conditions, it is
recommended that a minimum of 40% door heat be used.
Depending upon the quality of water used in the humidification system, it
may be necessary to clean the humidity steam generator (P/N 1900190)
every 2 to 3 months.
Materials Required
6-foot stepladder
Flat and Phillips screwdrivers
11/32 Nutdriver or wrench
Laboratory disinfectant
9/16 Open end wrench
1/2 Open end wrench
Sponge & cleaning materials
Warning
De-energize all potential sources of energy to this unit and
lockout/tagout their controls.
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1. Remove all contents from the incubator, turn it off, and disconnect
from power source.
2. Turn off the valve supplying the sterile distilled water.
3. From the stepladder, remove the eight screws securing the top of the
incubator cabinet.
4-8 Model 3940 Series Thermo Electron Corporation
Set Door Heater
Control
Section 4
Service
Figure 5-11. Door Heater Control
Clean/Adjust Steam
Generator