Page 80 © Boule Medical AB, March 2018. Article no. 1504496
9. Troubleshooting and System Messages
Sample Pathology Messages and Flag Indicators
Distribution Indicators (RBC, PLT, WBC)
Indicator Message Description Action
DE Small particle interference The size distribution of the cell pulses departs
from the expected one. Possible reasons might
be pathological blood sample (e.g. nRBCs), PLT
clumps, lipemic sample interferences, air bubbles,
electrical disturbances, incomplete lysing or
incorrect gain setting.
Blood sample too
old or pathological
sample. Re-analyze
sample, if still
agged an alternative
methodology such as
e.g. slide review, is
adviced.
DS WBC Debris interference It was not possible to nd the correct position for
the WBC distribution curves.
Re-analyze sample.
HGB Indicators (HGB)
Indicator Message Description Action
HF HGB measuring problem The instrument detected a problem during the
lling of liquid in WBC counting chamber during
HGB blank.
Run a Prime Cycle,
before re-analyzing
the sample.
HH HGB measuring problem The HGB blank or sample readings reported a too
high light level.
HL HGB measuring problem The HGB blank or sample readings reported a
light level that was too low.
HN HGB measuring problem The HGB sample reading reported more light
than the blank reading. This gives a negative
HGB value.
Wait one minute,
and then re-analyze
sample.
HO HGB measuring problem The HGB dark (oset) reading reported a light
level that was too high or too low.
Switch o the
analyzer and switch
it back on after
3 seconds, and then
re-analyze sample.
HS HGB measuring problem Individual HGB readings vary too much, possibly
due to noise interference.
Run a Prime Cycle,
before re-analyzing
the sample.
HT Instrument temperature
outside limits
The instrument temperature reading is outside
the limits (10–51 °C) or the temperature sensor is
nonfunctional.
Ensure instrument
is within operating
temperature
(18–32 °C).
If HT continues,
contact service
technician.
HW HGB measuring problem HGB can be slightly too high due to extremely
high WBC.
Re-analyze sample.
Dilute if necessary.
Note: If various HF, HH, HL or HN Indicators repeatedly appear check High Altitude Compensation, mode may need
to be changed to Moderate or Maximum compensation in higher elevations.
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