2.22 ELECTRICS The display module indicators and switches are listed below. The indicators and mute switch are located on the front of the display module. Green indicator (7) shows that the LSI is receiving power and is powered up. NOTE: The single green indicator does not indicate correct operation or guarantee calibration. Green indicator (8) is a 50% load indicator. Green indicator (9) is a 60% load indicator. Green indicator (10) is a 65% load indicator. Green indicator (11) is a 70 % load indicator. Green indicator (12) is a 75% loads indicator. Green indicator (13) is a 80% load indicator. Amber indicators (14) and (15) are 75% load indicators.
Red indicators (16) and (17) are 100% load indicators. Switch (18) marked initiates a self- diagnostic routine test for the display module and is also used to mute the alarm audible warning. It is also used for setting a zero point when calibrating the display module. ! The following push buttons are located on the side of the display module. Push button (19) is labelled “CAL”. This is an on/off switch for the calibration mode. Push button (20) is labelled ”Span” and push button (21) is labelled “Span+%”. These push buttons are used in the calibration mode to obtain the calibration point for setting the indicators.
When the engine start switch is turned to the ON position, for the first two to three seconds, all indicators will be illuminated and the audible alarm will sound. This indicates that the display module is performing an internal self-check. When the display module has completed its internal self-check all indicators except indicator (7) will be extinguished and the audible alarm will cease. Indicator (7) will remain illuminated at all times that the system is powered up. Any error signals displayed in the first 30 seconds after power up should be disregarded.