Control Panel
The gauge control panel shown below contains the LED screen
and keypad.
The keypad allows you to access the gauge software. Troxler has
designed the keypad for ease of use with larger keys and anti-
glare coating. Pressing a menu key activates that menu only
when the Ready screen is displayed. Table 1 explains the
functions of each key on the keypad.
Figure 3. Model 4540 Control Panel