Cleaning the sample wells
If you use any cleaning or decontamination method, except those recommended in the manual, you risk
damaging the equipment. Clean the sample wells once a month or as needed.
WARNING!
Always wear protective glasses and gloves when servicing the instrument. Also, make
sure you disconnect the instrument from AC line power before you begin any service procedure.
CAUTION!
During instrument operation, the temperature of the heated cover can be as high as
108°C, and the temperature of the sample block(s) can be as high as 100°C. Before performing the
procedure, keep hands away until the heated cover and sample block(s) reach room temperature
To clean the sample wells:
1.
Follow the steps in “Cleaning the instrument”
.
2.
Open the heated cover.
3.
Remove the sample tray from the sample block(s) and set it aside.
4.
Use a cotton swab soaked in pure isopropanol to clean the sample wells thoroughly. Make certain
that the isopropanol has evaporated completely before reloading a sample tray.
Decontaminating the sample wells
If the sample wells become contaminated with any biological agents, clean the wells thoroughly with a
cotton swab soaked in 1:10 v/v dilution of 5.25% sodium hypochlorite (Clorox bleach).
Use bleach solution in moderation.
We recommend the use of 10% bleach solution for removing
contamination from the instrument sample block(s); excessive use of the solution, however, can corrode
the sample block(s) material. To prevent damage to the sample block(s):
• Avoid applying excessive amounts of bleach solution. If possible, instead of using a squeeze bottle
or soaked cloth, use an atomizer to deliver the solution to the wells of the block(s).
• After treating with bleach solution, rinse the sample block(s) thoroughly using deionized water.
Note:
Removing residual bleach from the surfaces of the instrument using water minimizes the long-
term effects of bleach treatments.
If the sample block(s) become contaminated with radioactivity, use a commercially available
decontaminant to remove the contamination. If the block(s) cannot be decontaminated, the instrument
cannot be returned for service.
Chapter 5
Maintenance
As-Needed maintenance
5
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Veriti
™
Thermal Cycler User Guide