Teledyne LGA-3500 - Laser Gas Analysis system - Manual (Page 37)

Laser Gas Analyzer Operation
Teledyne Analytical Instruments 23
Operation
The executable embedded program in the MCU of the central
process unit performs signal processing and data analysis, manages
system I/Os including keyboard operations and LCD, and runs system
self-test, calibration, and alarm. Furthermore, it establishes data
communication with PC through RS232 serial communication port and
GPRS modules. FPI provides WINDOWS-based PC service program for
all models of LGA-2000 analysis systems. Please refer to Appendix A
for details.
4.1 Front Panel
The Model 3500 front panel consists of a LCD screen and a 16 key
membrane keyboard. The LCD screen displays system information as
described in the following sections. The membrane keyboard is used to
carry out all user operations such as setting alarm parameters, setting
environment temperature and pressure, setting the optical path length,
doing system calibration, etc. The front panel is showed in Figure 4.1.
Figure 4-1: Model 3500 Series Front Panel