12
Annual inspection
Annual inspection
Inspection items
Criteria
Corrective action
Mercury collector tube
The quartz tube must be clean.
No discoloration of the quartz
wool.
Replace the mercury
collector tube.
Absorption cell
Must be clean.
Disassemble and clean the
absorption cell or replace it.
Flow rate
No variations exceeding 0.02
L/min.
Clean the needle valve or
replace the pump.
Output voltage of
detector (Ref)
Must be 4 ± 0.5V on the
Maintenance screen of
WA5Win.
Wipe any dirt and stains off
the lamp, lens, etc.
Active carbon filter
No damage or discoloration.
Replace.
Air pump
No abnormal noise.
During the flow rate check of the
system checks, adjust the flow
rate to 0.5 L/min, and the flow
rate must be stable.
Replace.
Electronic cooling unit
The (internal) temperature of the
cooling unit must be at least 8°C
lower than the room
temperature.
Repair.
