GE Analytical Instruments ©2009 57 of 236 DLM 90488-01 Rev. A
Additional System Components
Microprocessor Controller and Electronics
All operations of the Analyzer are controlled by a 32-bit microprocessor. Six proprietary electronic
board assemblies monitor and control Analyzer functions:
• Main board including the 32-bit microprocessor, 1 MB of program memory, 1 MB of data
memory, battery-backed nonvolatile memory for operator settings, digital I/O, QVGA color
graphics controller, stepper motor controllers, printer output, RS-232 (serial) port, and
interface to USB storage devices
• Analog-to-digital conversion board with integrated signal conditioning circuits for two
conductivity and four temperature measurements
• Color LCD QVGA display with touch panel
• Passive interconnect board
• ID board with nonvolatile memory for system specific coefficients
• I/O board with interfaces to external devices, via binary output, two alarms, and 4-20 mA
output
Data Outputs
The Analyzer has serial (RS-232), USB, and printer ports, allowing flexibility for exporting and
printing data. Real-time and historical data can be transferred from the Analyzer via the serial port
to a computer using communication software such as HyperTerminal (for details, see “Using
HyperTerminal” on page 228). Historical data can be transferred from the Analyzer via the USB port
to a USB flash storage device (provided) and then transferred to any computer that supports USB.
The Sievers 900 On-line TOC Analyzer also has one analog output (4-20 mA) which can be
customized to track specific data values, two alarms, binary output for use with a sample
sequencer, and binary input to facilitate remote start/stop functions.
Note:
The Analyzer cannot be directly connected to a computer via the USB port. Rather, the
Analyzer’s USB port can only be connected to a USB storage device, such as a USB flash
memory drive.
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