Specifications

Psion Teklogix 7530 G2 Hand-Held Computer Quick Reference Guide 31
Tap on the [Recalibrate] button.
Follow the onscreen directions to calibrate the display.
2.5 7530 G2 Indicators
7530 G2s use LEDs (Light Emitting Diodes), onscreen messages
and audio tones as indicators.
2.5.1 LEDs
The 7530 G2 is equipped with four tri-coloured LEDs. This section
outlines what these LEDs indicate.
Important: If an LED is illuminated in red, the operator should
be cautious as this generally indicates an abnormal
operating condition or active laser emission.