Troubleshooting – LABEC V-11D User Manual
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Troubleshooting
PROBLEM
Possible Cause
Solution
Power cord not connected to outlet
Plug instrument in
Dead Power outlet
Change to a different outlet
No
functioning
after power is
on .
Internal fuse melted or defective
electronic component
Change fuse or call an authorized
service engineer
Light beam blocked:
Holder misaligned
Check sample holder
Lamp is old or defective
Replace lamp
Lamp is off alignment
Readjust the lamp
Instrument
cannot
set
100%T (0A)
Defective electronic component
Call
an
authorized
service
engineer
Insufficient warm up time
warm up at least 20 minutes
Poor grounding
Check ground connection
Excessive
vibration,
strong
air
current near light source ,or strong
external light.
Improve working conditions
Lamp old or defective
Replace with a new lamp
Unstable power supply
equip a manostat to make the
voltage stable
unstable display
Defective or dirty detector or
defective electronic component
Call
an
authorized
service
engineer
Insufficient sample volume
Fill cuvette with more samples
Wrong wavelength setting
Failed to blank (0A/100%T)
Check analytical procedure and
wavelength setting.
Stray sample preparation vapors
Prepare
sample
away
from
instrument.
Use
proper
ventilation
Bubbles or particles in solution
Check sample preparation and
analytical procedure
incorrect
readings
obtained
Instrument
out
of
electronic
calibration
Call
an
authorized
service
engineer