OPERATING INSTRUCTIONS
Timer function
The timer function has two modes as follows:
1.Normal mode: starts immediately after start of the running
2.Timer mode 1: starts when the chamber temperature is 2.0°C lower than the set point. When conducting the sterilization, always select "Timer mode 1".
On timer mode 1, the timer starts when the chamber temperature is 2.0°C lower than the set point. After timer starting, the temperature indicator blinks, alarm lamp lights, and intermittent tone sounds if the chamber temperature is 5.0°C or more lower than set point due to the door opening, etc.
In spite of the alarm condition, the unit continues to run. The timer is reset to initial setting when the chamber temperature is 2.0°C lower than the set point again.
Set point
Start
Normal mode
Timer mode 1 (For sterilization)
Sterilization
Refer to the table below when setting the sterilization temperature and duration.
| Sterilization temperature | Sterilization duration |
|
| 135to145°C | 3 to 5 hours |
|
| 160to170°C | 2 to 4 hours |
|
| 180to200°C | 0.5 to 1 hour |
|
In case of sterilizing a lot of samples, extend the sterilization time for more than an hour.
•When sterilizing the combustibles, such as cotton capped tube and instrument which are covered with paper, do not put them on the shelves directly. Use the wire basket and upper shelves instead.
•When sterilizing the pipettes or the glass pipes, waterdrop must be dried out clearly, otherwise sterilization will not be completed.
•Take out the articles in the chamber when the chamber temperature is lower than 50°C.
Note:
Do not open the door during sterilization.
Do not open the door when the chamber temperature is higher than 100°C.