Yamato Scientific SQ 510 Autoclave, Sterilizers - Manual (Page 18)

15
Before Using This Unit
Installation Procedure
Time lag
a
b c ℃
Time ① ② ③ ④
a= Preset sterilization time
b= Time lag
c= sterilization time defined by the
Japanese Pharmacopoeia
Temperature inside the chamber
Saturated
vapor
temperature
Water temperature
When sterilizing liquid samples, a time lag (b) is made
between the temperature inside the chamber and actual
temperature of liquid by the time when the liquid
temperature reaches the preset sterilization temperature.
For this reason, a longer time than defined by the
Japanese Pharmacopoeia (c) is required to completely
sterilize the samples. Consequently, the actual preset
sterilization time (a) should be set to be extended
The right table shows the time lag between the
temperature inside the chamber and actual temperature of
liquid (water). The table below shows the temperature
rise and cooling time with no load (liquid). Preset sterilization temperature:121℃/room
temperature: 25℃ (using conical flask)
Time lag
Load
SN200/210
/300/310
SN500/510
SQ500/510
500cc 20min. 20min.
1000cc 20min. 20min.
2000cc 25min. 25min.
3000cc 25min. 25min.
4000cc 25min. 25min.
5000cc 30min. 30min.
Necessary time for sterilization
At room temperature of 25℃（Course: apparatus sterilization/forced cooling: OFF)
Sterilization
conditions
Time required
Model
Water
temperature
Preset
temperature
Preset
time
③
Air
purge
time
①
Pressurizing
time
②
Cooling-down
time
④
Total time
required
① +②+③+④
25℃ 121℃ 20min. 23min. 16min. 29min. 88min.
SN200/210
25℃ 126℃ 15min. 23min. 20min. 33min. 91min.
25℃ 121℃ 20min. 25min. 20min. 31min. 96min.
SN300/310
25℃ 126℃ 15min. 25min. 22min. 35min. 97min.
25℃ 121℃ 20min. 25min. 20min. 33min. 98min.
SN500/510
25℃ 126℃ 15min. 25min. 22min. 37min. 99min.
25℃ 121℃ 20min. 30min. 20min. 36min. 106min.
SQ500/510
25℃ 126℃ 15min. 31min. 24min. 40min. 110min.