Mindray BC-2800 Service Manual

Chapter7 Troubleshooting
Possible causes: clogged aperture; inappropriate WBC count time settings or
solenoid valve error.
Solution:
Access Service
→ Maintenance and do the Zap aperture and Flush
aperture procedures.
After unclogging, access Setup
→ Settings → Count to note down the
preset WBC count time. Access Service
→ Self-test → Tubing and test the
actual WBC count time.
If the tested time differs from the preset time by less than 2 seconds, it means
the unclogging is successful and you can return to the Count screen to continue
the analysis. Otherwise, Access Service
→ Maintenance to soak the bath
and tubing with probe cleanser.
When the soaking is done, access Setup
→ Settings → Count to note down
the preset WBC count time. Access Service
→ Self-test → Tubing and test
the actual WBC count time. If the tested time differs from the preset time by less
than 2 seconds, it means the unclogging is successful and you can return to the
Count screen to continue the analysis. If the difference is still greater than 2
seconds and stabilized around a certain value, access Setup
→ Settings →
Count to change the WBC count time accordingly. After the adjustment, test the
actual count time again and make sure the difference is within 2 seconds.
If the error still remains, call Mindray Customer Service Department or the
distributor.
7.2.6 WBC Bubbles
This error message occurs when the actual WBC count time is less than the
preset WBC count time by 2 seconds.
Possible causes:
Insufficient diluent or rinse.
Loose tubing connection;
Inappropriate WBC count time setting.
Solution:
1. Check if the diluent or rinse is sufficient. If not, change a new container of
diluent of rinse.
Check the tubing connections. If necessary, reconnect the tubing.
If the error still remains, access Setup
→ Password to gain the administrator
authority and then access Setup
→ Settings → Count and adjust the WBC
count time.
If the error still remains, turn off this analyzer and call Mindray Customer
Service Department or the distributor.
7.2.7 RBC Clog
This error message occurs when the actual RBC count time is greater than the
BC-2800 Auto Hematology Analyzer (V1.0) 7-4

Mindray BC-2800 Specifications

General

Reagents	Diluent, Lyse, Cleaner
Power Supply	AC 100-240 V, 50/60 Hz
Power Consumption	≤150 VA
Printer	Built-in thermal printer
Type	Hematology Analyzer
Parameters	WBC, RBC, HGB, HCT, PLT
Sample Volume	20 μL
Display	Large LCD display
Data Storage	10, 000 sample results
Interface	RS232, USB
Operating Environment	Temperature: 15-30°C, Humidity: 30-85%
Storage Environment	Temperature: -10-55°C, Humidity: ≤93%