1. MEK-6400 series Technical seminar
ALARM & SYSTEM ERROR

2. Alarm messages Invalid Data Identifier
Possible Cause/Criteria
Countermeasure
? is displayed to the right of WBC or RBC measured value
Abnormal sample
Check that the temperature of the diluent is between 15 and 30°C. Then recount the sample.
? is displayed to the right of HGB measured value
The WBC measurement bath is dirty.
Water and alcohol cannot be measured. Clean the measurement bath.
control. Then recount the sample.
! is displayed to the right of WBC measured value
WBC counting error. Poor hemolyzation.
Check the analyzer by counting the hematology
! is displayed to the right of HGB measured value
HGB voltage adjustment error.
! is displayed to the right of
MCHC measured value
Abnormal RBC. Error occurred when diluting the sample.

3. Alarm messages Invalid Data Identifier
Possible Cause/Criteria
Countermeasure
* is displayed to the right of HGB measured value
Error in the circuit.
Check the internal circuit by referring to “Checking the Circuit” in Section 9. If an error is detected, refer to the Service Manual.
* is displayed to the right of RBC or PLT measured value
PLT-RBC interference
Check the analyzer by counting the hematology control. Then recount the sample.
C is displayed to the right of WBC and PLT measured values
WBC and PLT counting error.

4. CBC Measurement Alarm Bubble 4 alarm WBC ( less than 9.0 sec )
RBC ( less than 12.2 sec )
Clog alarm
WBC ( more than sec )
RBC ( more than 15.3 sec )
Level 2 alarm
( more than 8 sec )
Level 1 alarm
( more than 8 sec )
Level 3 alarm
( more than 11 sec )

5. CBC Measurement Alarm Bubble 2 alarm ( Upper sensor detects liquid )
( Upper or lower sensor detects air )
Bubble 3 alarm
( Lower sensor detects air )