Electronics - Labconco Purifier Logic+ 30132 Technical Manual And Specifications

constant volume algorithm, by General Electric, and used in the Logic+ BSC. By
testing a prototype model to a variety of airflows and filter pressures, the
motor/blower can be "characterized" for that size cabinet. This characterization
allows for the creation of a model-specific motor-blower curve. By programming
the curve values into the motor during assembly, the motor will deliver the
correct volume of air as the HEPA filters load.

Electronics

The Logic+ utilizes two microprocessors. The first is part of the ECM motor,
attached to end of the motor housing, as shown in Figure 1-11. This processor
controls motor operation, and communication with the display board. The second
is located on the control board, located on the right side wall, as shown in Figure
1-12. It controls the display and its interface to the touchpad.
The ECM Microprocessor board is encapsulated in
epoxy to prevent moisture and dirt contamination of
the microelectronics.
The control board assembly
(located on the right side wall)
The Logic+ has three circuit boards. The ECM microprocessor and power supply
board, located in the end of the ECM, the control board on the right side wall,
shown in Figure 2-5, and the power supply board assembly, located in the
electronics module, as shown in Figure 1-13.
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Figure 1-11
Figure 1-12
Figure 1-13
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