Operational Activities for the Incubator Module
8-4 DSX™ System Service Manual
The temperature of the heaters is monitored using sensors, which produce a current output
proportional to the temperature. The current from each sensor is selected using an analog
switch controlled by P82 on the microprocessor. The current is then converted by an op amp
circuit to a voltage and applied to A/D input AN1 on the microprocessor. The microprocessor
then uses the temperature information to control the power applied to the heaters to maintain
the required temperature of the test plate.
8.4 Operational Activities for the Incubator Module
The following actions occur when a Plate Insert command is received by the Incubator
Module:
1 The temperature sensor checks to verify that the temperature in the Incubator
Module matches the value indicated in the assay to be performed.
2 The plate carrier is ejected from the module. The movement of the plate carrier is
terminated when the eject sensor determines that the plate carrier is driven to the
full extended position.
3 The well plate is inserted into the plate carrier by the pipette tip.
4 The plate carrier is drawn into the module. The movement of the plate carrier is
terminated when the sensor determines that the plate carrier is driven to the full
internal position.
At the termination of the desired incubation period, the following actions occur:
1 The plate carrier is ejected from the module. The movement of the plate carrier is
terminated when the eject sensor determines that the plate carrier is driven to the
full extended position.
2 The well plate is removed from the plate carrier by the pipette tip.
3 The plate carrier is drawn back into the module. The movement of the plate
carrier is terminated when the sensor determines that the plate carrier is driven to
the full internal position.
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