Airnet II Particle Sensor Operations Manual
Page 6-1
Chapter 6
Troubleshooting
Use this chapter to help troubleshoot issues with the Airnet II particle sensor, such as
power issues, communication messages, errors, leaks, and particle and transient-
induced counts.
Troubleshooting Matrix
Problem
Symptoms
Possible Cause
Try...
No power
No lights
or
No communications
Power supply
not connected to
a power source
Check the seating of the power
supply cable in the unit.
Verify that the power supply is
plugged in.
Electrical power
source fault
Check the electrical outlet for
power, including any power
strips or surge protectors.
Power supply
faulty
Try a different power supply.
If using PoE
Verify power is being supplied
Communications not
established –
Facility Net displays
“Communications
Error”.
Unable to view data
from working sensor
Ethernet cable
problem
Replace the Ethernet cable that
connects the sensor to an
Ethernet hub.
Unit not
configured
correctly
Re-configure the unit. First
check the sensor’s IP Address
and the computer’s IP Address.
Computer
hardware or
software
problem
Substitute a computer with
known good Ethernet
capability.
Refer to your computer’s
Ethernet card documentation
to correct the fault.
Laser failure
Status light
indication
BAD Laser
Return the unit to your local
service center.
Detector board
failure
