Page
Page A-2
A-2
LASAIR
LASAIR II
II Operator’s
Operator’s Manual
Manual
Appendix A: Troubleshooting
Appendix A: Troubleshooting
C.
C. Y
You do no
ou do not hear a to
t hear a tone wh
ne when the L
en the LASA
ASAIR II is st
IR II is starte
arted.
d.
When starting the LASAIR II, the software generates an a
When starting the LASAIR II, the software generates an audible tone to indicate
udible tone to indicate
a successful startup check. The lack
a successful startup check. The lack of a tone means the
of a tone means the LASAIR II startup was
LASAIR II startup was
not successful. Press the OFF button and then try restarting the LASAIR II with
not successful. Press the OFF button and then try restarting the LASAIR II with
the ON button. If you are still unable to get a tone, call Instrument Service and
the ON button. If you are still unable to get a tone, call Instrument Service and
Support.
Support.
D.
D. The di
The displa
splay is bac
y is backlit
klit, but the
, but there is n
re is nothi
othing on th
ng on the disp
e display
lay..
First try turning your LASAIR II off and then on again. If the problem persists,
First try turning your LASAIR II off and then on again. If the problem persists,
your LASAIR II software may be corrupted. Call Instrument Service and
your LASAIR II software may be corrupted. Call Instrument Service and
Support.
Support.
E.
E. The sa
The sampl
mple is inva
e is invalid be
lid becau
cause the ai
se the airflo
rflow is not 1 cu
w is not 1 cubic fo
bic foot per m
ot per minut
inute (1
e (1
CFM).
CFM).
Try the following steps:
Try the following steps:
1.
1.
Run t
Run the sa
he sample
mple again.
again. The l
The low ai
ow airflow
rflow proble
problem us
m usually
ually is
is self-
self-correc
correcting.
ting.
2.
2.
If t
If the pro
he proble
blem doe
m does not c
s not corr
orrect i
ect itse
tself, t
lf, test y
est your p
our power
ower sou
source
rce..
3.
3.
If t
If the pow
he power s
er source
ource appears
appears to be
to be adequat
adequate, lo
e, look fo
ok for obs
r obstruct
tructions
ions in t
in the
he
LASAIR II’
LASAIR II’s intake port, exhaust port, and
s intake port, exhaust port, and sample tubing. Remove any
sample tubing. Remove any
obstructions that you find.
obstructions that you find.
4.
4.
If
If there
there are
are no o
no obstru
bstructions
ctions, cal
, call I
l Instru
nstrument
ment Servic
Service and
e and Support
Support..
F
F..
Sam
Samplin
pling is s
g is stopp
topped be
ed becaus
cause of p
e of pump
ump flow
flow err
error
or..
This can be caused by the following conditions:
This can be caused by the following conditions:
••
pump over-current failure. If the pump draws too much current, it wi
pump over-current failure. If the pump draws too much current, it will shut
ll shut
down causing sampling to terminate.
down causing sampling to terminate.
••
flow controller cannot control the flow to 1
flow controller cannot control the flow to 1 CFM for 60 seconds or longer.
CFM for 60 seconds or longer.
This may be caused by a blocked inlet port or a damage
This may be caused by a blocked inlet port or a damaged pump. In a manifold
d pump. In a manifold
system, the displayed value is typically less than 1 CFM, but the software
system, the displayed value is typically less than 1 CFM, but the software
uses an internal value. More information about LASAIR
uses an internal value. More information about LASAIR II flow with a
II flow with a
manifold can be found in the
manifold can be found in the
AM-II Operator’
AM-II Operator’s Manual
s Manual
..
••
a hardware error on the circuit board
a hardware error on the circuit board while attempting to read pressure and
while attempting to read pressure and
flow data
flow data
Try the following:
Try the following:
1.
1.
Re
Rebo
boot
otin
ing t
g the
he in
inst
stru
rume
ment
nt..
2.
2.
If r
If rebooti
ebooting th
ng the ins
e instrume
trument f
nt fails
ails to co
to correct
rrect the pr
the problem,
oblem, call
call Parti
Particle
cle
Measuring Systems Service.
Measuring Systems Service.
