Industrial Scientific TGX, Product Manual

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Table 5.1 Identifying possible power connection issues
NOTICE: Only professionally trained automotive personnel should investigate, identify, and remedy any power-related issues,
working in a nonhazardous area, using safe practices and equipment.
Step Vehicle
engine status
Guidelines
•
If the wire is damaged, remove the unit from service until you can replace the TGX
power cable. Contact Industrial Scientific.
3 On
Voltage check
Measure the voltage of each wire.
•
The red (battery) wire should produce a reading greater than or equal to 12VDC.
•
The white (ignition) wire’s reading should be similar to that of the red wire.
•
The black wire should produce a zero reading.
If any of the readings do not match the values noted above, the installation of the power cable
may be incorrect or the vehicle charging system is not delivering sufficient voltage.
Off If the wiring is incorrectly installed, examine the power cable for damage.
•
If undamaged reinstall as needed.
•
If damaged, remove the unit from service until you can replace the TGX power cable.
Contact Industrial Scientific.
Check the vehicle charging system and repair as needed.
Note: If the vehicle has a “smart alternator”, it is possible that its lower voltage levels are at or
lower than the unit’s Critical Low Voltage setting. This can prevent TGX power on or power
off. As needed, review this
setting
and consult the vehicle manufacturer for more
information.
LED Check
As noted below, each LED can be in a different state.
Solid green
Solid amber
Solid red
Blinking green Blinking amber Blinking red
Off
Some general LED patterns are described below.
•
Lights are green with no red or amber lights
If all lights are solid green for the unit’s equipped, enabled functions, the unit is receiving power and is
operational. When a wireless light is blinking green , the unit is transmitting data.
•
The system light is green, but some lights are off
If a feature is disabled or is not available for that unit, its indicator light is off. For example, the satellite
LED will be off for a Cellular-only Unit.