Troubleshooting - Zuzi UV-VIS 4481/1 Manual De Instrucciones

Clean the sample chamber and cuvette after use each time, to prevent the parts of instrument from rot-
ting, which are caused by the samples. Use petroleum ether to clean cuvette after use each time, use lens
tissue to clean the cuvette, and place them in cuvette boxes for future use.
ATTENTION!! IF EQUIPMENTS ARE NOT PROPERLY CLEAN AND
DISINFECTED THEY WOULD NOT BE ALLOWED TO REPAIR BY OUR
TECHNICAL SERVICE.

9. TROUBLESHOOTING

The failures of the instrument can be divided into categories, one is normal wear and tear of parts or
components, and the other is the malfunction of instrument. As the equipment is high precision device,
if it doesn't work, the user shall instantly contact the after-sale service department of the manufacturer
and provides description of malfunctions, so can the engineer determine whether the user can fix it with
his instruction. If the user cannot solve the problem, the manufacturer will arrange engineer to provide
on-site support. Below are some examples of common failures only for reference.
1. The device doesn't work
Failure
- No 220V voltage supply from the power
- The power cord is not properly connected
- The fuse of power supply is broken
- The switch of power is broken
The display is dark
when power on
- The cable of display is not well connected
- The power PCB is broken
- The CPU PCB is broken
- The display is broken
2. The power on self-test fails I
Failure
- The photoelectric switch is broken
The computer
The motor for sample position doesn't work:
system fails in self-
1. The motor for sample position is broken
test
2. The circuit board which drives the motor
is broken
The computer
- The internal electronic component is broken
system fails in self-
test
- The photoelectric switch is broken
The motor filters doesn't work:
The initialization of
1. The motor for filters is broken
filters fails
2. The circuit board which drives the motor
is broken
Manual de instrucciones 54481001
Cause
Cause
Pág. 40
Troubleshooting
- Check whether the power supply is 220V
- Get the power cord properly connected
- Replace with a new 2A fuse
- Replace with a new switch
- Get the cable well connected
- Contact with Zuzi Technical assistance
department
- Contact with Zuzi Technical assistance
department
- Contact with Zuzi Technical assistance
department
Troubleshooting
- Replace the photoelectric switch
1. Replace with a new motor
2. Repair CPU circuit board.
- Contact with Zuzi Technical assistance
department
- Contact with Zuzi Technical assistance
department
- Replace the photoelectric switch
1. Replace with a new motor
2. Repair CPU circuit board
- Contact with Zuzi Technical assistance
department
Version 1 December 2015