Genrui WP21B - Page 71

WP21 Series Operation Manual Chapter 7 Daily Use and Maintenance
65
Fault
Description
Cause Analysis
Troubleshooting
A There are air
bubbles in the
cuvette
B The cuvette is
unclean
C The light-source
lamp is ageing
Unstable test
results
1. Not test
absorbance
during startup
2. The reagent is
ineffective
3. The aspiration
volume is
insufficient
4. The standard is
not tested
5. The wavelength is
unavailable
6. Air is aspirated
carelessly during
operation
1. Test absorbance during
system maintenance
2. Exchange for effective
reagents
3. Adjust the aspiration
volume to make it ≥
600μL
4. Measure the blank and
standard again
5. Use another
wavelength to measure
again
6. Carefully operate
according to the related
requirements
If the instrument fault is still present, or there are other faults, please
contact our customer service division.