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14 Trouble Shooting
This chapter gives hints to simplify trouble shooting of the instrument and to
minimise external service actions. Also the user might trace a problem to a user-
recoverable error or a case where an external service action might be necessary.
14.1 Counting Time HI (TU & TL)
A counting time displayed as “HI” means usually a clogging in the orifice of the
analyzer. The counted parameter will have a TU or TL displayed as well.
Re-analyze the sample, as the instrument will rinse the orifice automatically.
If a counting time “HI” is displayed frequently, scroll to menu 6.8 and press
[Enter] This program will clean the orifice several times.
If the above doesn't help, proceed as follows:
1. Put both aspiration tubes in a container with an enzymatic cleaner approved
by Boule.
2. Select menu 8.2. Wait 10-60 minutes and refill the system with diluent and
lyzer the same way.
Note:
In case frequently a TU or TL warning is displayed on the WBC parameters, this
might indicate that the pre-dilute inlet is clogged.
1. Attach a syringe with hypochlorite, approved by Boule, to the pre-dilute as-
piration inlet and rinse from any possible clogs.
2. Afterwards, enter menu 8.1 (Prime) to restore the flow system.
Note:
In case the MPA is installed, such blockage might be caused by broken capillary
tubes within the MPA and/or connecting tubes. Call your service dept. in such
case, see also Analysing the Sample (Micro Pipette Adapter, MPA) on page
57.
14.2 Counting Time LO
A counting time displayed as “LO” means that there is air in the metering unit of
the analyzer.
Select menu 8.1 (Prime). The metering units are emptied and refilled with clean
diluent.
14.3 HGB Value Flagged with LO
The “LO” indication means that the blank reference during the HGB measure-
ment was too low. This might indicate a bad lamp or a contaminated cuvette.
Follow the instructions as shown in Three (3) Month Maintenance on page 95
how to clean the system.
In menu 6.2 help functions are available to analyze the HGB system.
The lamp voltage and the output of the photometer will be displayed in this
menu.
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