Maintenance 6-3
Cleaning the Heated
Cover
During instrument operation, the temperature of the heated cover can be
as high as 108 °C, and the temperature of the sample block can be as high as 100 °C. Before
performing the procedure, keep hands away until the heated cover and sample block reach
room temperature.
7 Remove any remaining isopropanol from the cover before reloading the sample
tray.
Note If the sample wells become contaminated from the samples, clean the wells
thoroughly with a cotton swab soaked in bleach and then rinse with water.
CHEMICAL HAZARD. Sodium hypochlorite (bleach) is a
liquid disinfectant that can be corrosive to the skin and can cause skin
depigmentation. Read the MSDS, and follow the handling instructions. Wear
appropriate protective eyewear, clothing, and gloves.
To clean the sample wells: (continued)
Step Action
To clean the heated cover:
Step Action
1 If a method is running, press the Stop key twice.
2 Turn off the instrument.
3 Wait 20 to 30 minutes for the heated cover to cool down.
4 Lift the lever and open the hinged heated cover.
5 Soak a cotton swab or piece of clean cloth with pure isopropanol and gently wipe
the heated platen.
CHEMICAL HAZARD. Isopropanol is a flammable liquid
and vapor. Exposure may cause eye, skin, and upper respiratory tract irritation.
Prolonged or repeated contact may dry skin and cause irritation. Exposure may
cause central nervous system effects such as drowsiness, dizziness, and
headache. Read the MSDS, and follow the handling instructions. Wear appropriate
protective eyewear, clothing, and gloves..
6 Remove any remaining isopropanol from the cover.
Note If the platen becomes contaminated with amplified DNA, then raise the
heated cover to the cleaning position, and wipe the platen with a cloth or cotton
swab soaked in bleach and then rinse with water.
CHEMICAL HAZARD. Sodium hypochlorite (bleach) is a
liquid disinfectant that can be corrosive to the skin and can cause skin
depigmentation. Read the MSDS, and follow the handling instructions. Wear
appropriate protective eyewear, clothing, and gloves.
Clean the heated platen once a month or as needed.