Belfort AWOS, Руководство по обслуживанию

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BELFORT
INSTRUMENT
Proprietary Information
Check Visibility Sensor OK, Fault
Check Wind Speed Sensor OK, Fault
Check Wind Direction Sensor OK, Fault
The Advisor Status History Log is available for review. The Advisor Status History Log Page is
a chronological chart 18 columns wide representing the above 18 flags. It stores a time stamped
record of all the fields every time any of the status fields change. Refer to the “Belfort AWOS
Operator’s Instruction Manual” for complete instructions for using the Advisor software and
accessing the Belfort AWOS Status History..
6.2
I
NTERPRETING
D
IAGNOSTIC
M
ESSAGES
The following are the factory recommended diagnostic procedures that should be followed
whenever an error indicator is displayed on the current Advisor Status Page.
6.2.1 System Status Indicators:
The following are the factory recommended diagnostic procedures that should be followed
whenever an error flag is displayed on the current Advisor Status Page as System Status Indicators.
The Advisor Status History is available for review. Refer to the "Belfort AWOS Operator Manual"
for instructions on how to access Belfort AWOS Status History.
If any components are determined to be faulty or suspect, follow the Belfort AWOS System
Component Failure Instructions in Section 5.10.
AC Power Status – Error flag is present when 14VDC from the AC to DC power supply is not
present, not connected to the DCP, or the DCP AC status monitoring is faulty. The system would
be running from the backup battery in this case.
1. At the DATU display terminal, issue a NOTAM advisory to alert users that the Belfort
AWOS system is being serviced prior to beginning investigation of this fault. The
NOTAM to be issued is
"Belfort AWOS system being serviced, do not use current
weather data outputs." Verify that this NOTAM advisory is displayed on the operator
screen prior to beginning this maintenance tasks. Refer to the "Belfort AWOS Operator
Manual" for instructions on how to enter and delete NOTAMs.
2. Using a voltmeter, check for 115VAC on power supply input. If 115VAC is present at the
power supply input, use the DMM set to DC volts to check for +14VDC on the supply
outputs. If no +14v DC output then turn off AC breaker and check for +14v line short. If
no +14v short, then replace the defective power supply.
3. If 115VAC is not present on the power supply inputs, check for 115VAC at the input side
of the circuit breaker. If the 115VAC is present at the input of the circuit breaker, then the
circuit breaker may have tripped due to short on the lines to the input of the power supply.
Use the DMM set to ohms, check for short on the AC input lines to the power supplies. If
the input line is shorted, remove ac feed wires to the power supplies one supply at a time.
If short goes away with removal of power supply feed lines, then replace suspect power