FALEX 400 Operation And Maintenance Manual page 28

Section 3: Software Operation
27
Test run time
Figure 41a
System pressure and heater
Figure 41b
tube temperature
10. Test Completion: Tests either complete or
they fail due to operator aborts, failure to meet
or maintain operational requirements such as
pressure loss, failure to maintain temperature
or excessive bus bar temperature. Following
test completion or failure, a safety screen
appears halting program advancement until
a safe handling temperature is reached at the
heater tube thermocouple
Temperature timer bar will disappear from the Test
Complete screen when the unit has reached a
safe temperature to proceed.
The heater tube test section is extremely
hot and dangerous to handle after a test
has completed or aborted. Keep the
thermocouple in the heater tube after any
test has completed or aborted until its
temperature drops below 40ºC. Once the
temperature is below 40ºC the unit is safe
to handle.
. The Tube
[Figure 42]
Test Completion Screen Waiting
Figure 42
For Tube Temperature To Cool
A. Tube Rating: Upon a successful test comple-
tion, a tube rating screen appears following
the cool down. Follow the heater tube disas-
sembly procedure (Section 4) to prepare the
tube for rating. The operator must enter a
value for the tube rating (pumped fuel volume
optional) . All entries are stored in
[Figure 43]
the data file. The tube rating is derived from
placing the specimen tube in the Falex 420
Tube Rater and comparing it to the ASTM
D3241 color comparison standard supplied
with the Tube Rater. The Falex 420 Tube Rater
is specifically designed to meet ASTM D3241
for tube rating. Any characters can be entered
for a tube rating. However, it is recommended
that the individual test method for procedure
and instructions on how to rate a tube be used
(ASTM D3241).
Tube Rating Screen
Figure 43
B. Aborted Tests: A test is terminated by the op-
erator pressing any abort button during a test
or from the test itself failing to reach defined
parameters. Refer to the Alarm section of this
manual to see which alarms cause an immedi-
ate test termination and which alarms initiate
only a warning message.