Teledyne MODEL T703 Manual Do Utilizador

The LCD display is controlled directly by the CPU board. The touchscreen is interfaced to the CPU by means of 
a touchscreen controller that connects to the CPU via the internal USB bus and emulates a computer mouse. 

The front panel interface PCA controls the various functions of the display and touchscreen. For driving the 
display it provides connection between the CPU video controller and the LCD display module. This PCA also 
contains: 

• 

power supply circuitry for the LCD display module  

• 

a USB hub that is used for communications with the touchscreen controller and the two front panel USB 
device ports 

• 

the circuitry for powering the display backlight 

 

The T703 calibrator’s core module is a high performance, Vortex 86SX-based microcomputer running Windows 
CE. Inside Windows CE, special software developed by Teledyne API interprets user commands from the 
various interfaces, performs procedures and tasks, stores data in the CPU’s various memory devices, and 
calculates the concentration of the gas being sampled. 

 

  Windows CE 

Calibrator Operations 

Calibration Procedures 

Configuration Procedures 

Autonomic Systems 
Diagnostic Routines 

 

Memory Handling  

 

Calibration Data 

System Status Data 

 

Interface Handling 

Sensor input Data 

Touchscreen 

Analog Output Data 

RS232 & RS485 

External Digital I/O 

 

 

Measurement 

Algorithms for 

photometer 

 

 

07223B DCN6378