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Section 4
Service
Manual Reset Thermostat
To prevent excessively high temperatures inside the shaker cabinet, if the
air circulating fans should fail, a manual-reset thermostat is located
adjacent to the heating elements (Figure 4-7). This thermal device will
shut off the heaters and must be manually reset. Lower the electronics
panel to access this thermostat.
Figure 4-7. Components Behind Electronics Panel
Temperature Sensors
Two sensors, located inside the back of the shaker, are part of the
temperature regulating and temperature alarm systems. The location of
these sensors is shown in Figure 4-7. Both sensors are wired to a single
connector on the Controller Circuit Board. Refer to Figure 4-4. If either of
these sensors should fail, an alarm will activate.
Drive Belt Sensor
To alert the operator of a broken drive belt, a sensor is located beneath the
drive mechanism. To access this sensor, remove the platform and the sheet
metal panel beneath it. Refer to Figure 4-8.
Figure 4-8. Belt Sensor
Thermo Scientific
Orbital Shaker
4-7
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