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Teledyne API - T100 UV Fluorescence SO2 Analyzer Principles of Operation
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13.5.1. CPU
The unit’s CPU card, installed on the motherboard located inside the rear panel, is a low
power (5 VDC, 720mA max), high performance, Vortex 86SX-based microcomputer
running Windows CE. Its operation and assembly conform to the PC 104 specification..
Figure 13-14: CPU Board Annotated
The CPU includes two types of non-volatile data storage: a Disk on Module (DOM) and
an embedded flash chip.
13.5.1.1. DISK ON MODULE (DOM)
The DOM is a 44-pin IDE flash chip with storage capacity to 256 MB. It is used to store
the computer’s operating system, the Teledyne API firmware, and most of the
operational data generated by the analyzer’s internal data acquisition system (DAS).
Embedded in the DOM is a flash chip.
13.5.1.2. FLASH CHIP
This non-volatile, embedded flash chip includes 2MB of storage for calibration data as
well as a backup of the analyzer configuration. Storing these key data onto a less heavily
accessed chip significantly decreases the chance data corruption.
In the unlikely event that the flash chip should fail, the analyzer will continue to operate
with just the DOM. However, all configuration information will be lost, requiring that
the unit be recalibrated.
06807C DCN6650