CETAC Aridus II, Руководство оператора

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Aridus II™ Operator’s Manual
34
Use of a different fuse other than those specified can damage the electrical
components of the Aridus II
™
, constitute a fire hazard, or result in personal
injury.
4
Insert the fuse drawer, replace the power cord, and turn the AC power switch
on. If the new fuse blows, do not attempt to operate the unit. Contact your
authorized CETAC Service Representative or CETAC Technologies for
assistance.
Spray Chamber and Desolvator Fuse Replacement
The fuses for the spray chamber and the desolvator are also at the left rear of
the Aridus II
™
. To replace blown fuses:
1
Turn the AC power switch off (0) and disconnect the AC power cord.
2
Turn the fuse knob counter-clockwise and pull the fuse holder straight out of
the instrument cabinet.
3
Replace the defective spray chamber fuse with a 20mm, 2.5A, 250V fuse.
4
Replace the defective desolvator fuse with a 20mm, 5A, 250V fuse.
5
Place the new fuse in the fuse holder, reinsert into the respective fuse slot, and
turn the fuse holder clockwise to set the fuse in place.
Use of a different fuse other than those specified can damage the electrical
components of the Aridus II
™
, constitute a fire hazard or result in personal
injury.
6
Replace the power cord and turn the AC power switch on. If the new fuse
blows, do not attempt to operate the unit. Contact your authorized CETAC
Service Representative or CETAC Technologies for assistance.
Rinse Procedure for the Membrane Desolvator
The membrane may need to be thoroughly rinsed after the analysis of organic
samples containing high concentrations of nonvolatile residues or after
analysis of aqueous samples containing high concentrations of dissolved solids.
The length of time between rinses in a routine operation depends on the types
of samples analyzed. Analysis of samples containing less than 1% of dissolved
solids is recommended. Best performance will be achieved with 0.1% to 0.5%
dissolved solids.
When solvent removal efficiency decreases, oxide (e.g., CeO) levels may
increase and analyte signal may decrease or become unstable. Analysis of
samples with higher dissolved solids may also cause a sample memory
effect. The membrane desolvator may then require cleaning.
WARNING
WARNING