" " or "
▽ ". After finishing the setting, if no key is pressed in 5s, the temperature value stops flashing,
△
indicating that the value has been stored in the computer, otherwise the setting is invalid. The range of
temperature setting is -126 ~ -150 ℃ .
In case of ambient temperature above 30 ℃ (excluding 30 ℃ ), if the temperature setting is below -140 ℃ ,
please adjust the internal temperature setting to -140 ℃ ; in case of ambient temperature below 28 ℃
(including 28 ℃ ), please adjust the internal temperature setting to original set value.
2.3 "High-temperature alarm setting": press the "Function selection" key continuously until the
"High-temperature alarm setting" indicator light is "on", at which time the display screen will indicate
temperature setting and the digits flash, and then change temperature setting by pressing " " or " " to
increase or decrease the value, specifically speaking, the value will increase or decrease by 1 if press
" " or "
△
▽ " intermittently, while the value will increase or decrease rapidly and continuously by 1 if
press and hold " " or "
△
alarm of SLT freezer sounds and the "High-temperature alarm" indicator light is on. The
high-temperature alarm setting must not be above maximum temperature limit and +5 ℃ lower than
temperature setting.
2.4 "Low-temperature alarm setting": press the "Function selection" key continuously until the
"Low-temperature alarm setting" indicator light is "on", at which time the display screen will indicate
temperature setting and the digits flash, and then change temperature setting by pressing " " or " " to
increase or decrease the value, specifically speaking, the value will increase or decrease by 1 if press
" " or "
▽ " intermittently, while the value will increase or decrease rapidly and continuously by 1 if
△
press and hold " " or "
△
alarm of SLT freezer sounds and the "Low-temperature alarm" indicator light is on. The low-temperature
alarm setting must not be below minimum temperature limit and -5 ℃ higher than temperature setting,
otherwise the setting can not be performed.
2.5 After finishing all the settings, if no operation is made in 5 minutes, the control board will be locked
automatically, and these settings are valid.
2.6 If any alarm condition occurs, all audible alarms will sound in such a way that it sounds for 15
seconds and then pause for 1 minute until the condition is cleared.
2.7 The setting of operating temperature should be as follows: first set the temperature at -126 ,
hours later, change to -135 ,
freezer works normally in successive 3 days at temperature setting value, the 1
loaded, but the volume of samples must not exceed 1/5 of the freezer's effective capacity.
▽ ". Once internal temperature is above high-temperature alarm setting, the
▽ ". Once internal temperature is below low-temperature alarm setting, the
℃ and 7 hours later, change to required temperature, e.g. -140 .
△
▽
△
▽
℃ and 24
℃ When the
st
batch of samples may be
11-24