Page Page A-2 A-2 LASAIR LASAIR II II Operator’s Operator’s ManualManual
Appendix A: TroubleshootingAppendix A: Troubleshooting
C.C. YYou do noou do not hear a tot hear a tone whne when the Len the LASAASAIR II is stIR II is startearted.d.
When starting the LASAIR II, the software generates an aWhen starting the LASAIR II, the software generates an audible tone to indicateudible 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 wasLASAIR II startup was
not successful. Press the OFF button and then try restarting the LASAIR II withnot 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 andthe ON button. If you are still unable to get a tone, call Instrument Service and
Support.Support.
D.D. The diThe displasplay is bacy is backlitklit, but the, but there is nre is nothiothing on thng on the dispe displaylay..
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 andyour LASAIR II software may be corrupted. Call Instrument Service and
Support.Support.
E.E. The saThe samplmple is invae is invalid belid becaucause the aise the airflorflow is not 1 cuw is not 1 cubic fobic foot per mot per minutinute (1e (1
CFM).CFM).
Try the following steps:Try the following steps:
1.1. Run tRun the sahe sample mple again. again. The lThe low aiow airflow rflow probleproblem usm usually ually is is self-self-correccorrecting.ting.
2.2. If tIf the prohe probleblem doem does not cs not corrorrect iect itsetself, tlf, test yest your pour power ower sousourcerce..
3.3. If tIf the powhe power ser source ource appears appears to be to be adequatadequate, loe, look fook for obsr obstructtructions ions in tin thehe
LASAIR II’LASAIR II’s intake port, exhaust port, and s intake port, exhaust port, and sample tubing. Remove anysample tubing. Remove any
obstructions that you find.obstructions that you find.
4.4. If If there there are are no ono obstrubstructionsctions, cal, call Il Instrunstrument ment ServicService and e and SupportSupport..
FF.. SamSamplinpling is sg is stopptopped beed becauscause of pe of pump ump flow flow errerroror..
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 wipump over-current failure. If the pump draws too much current, it will shutll 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 damageThis may be caused by a blocked inlet port or a damaged pump. In a manifoldd pump. In a manifold
system, the displayed value is typically less than 1 CFM, but the softwaresystem, 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 aII flow with a
manifold can be found in themanifold can be found in theAM-II Operator’AM-II Operator’s Manuals Manual..
•• a hardware error on the circuit board a hardware error on the circuit board while attempting to read pressure andwhile attempting to read pressure and
flow dataflow data
Try the following:Try the following:
1.1. ReReboboototining tg the he ininststrurumementnt..
2.2. If rIf rebootiebooting thng the inse instrumetrument fnt fails ails to coto correct rrect the prthe problem, oblem, call call PartiParticlecle
Measuring Systems Service.Measuring Systems Service.
To Next Page
Loading...
Need help?
General
