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H. “Low battery charge” indicator light “on” indicates the battery is at low charge and must be recharged;
when connected to AC power supply, the SLT freezer charges the battery automatically.
● Key definition:
There are 4 keys on the temperature control board. With the “Locked” indicator light on, all the keys are
locked to prevent misoperations.
● “Function selection”: In unlock mode, press this key to select the desired function from “Internal temperature
setting”, “High-temperature alarm setting” and “Low-temperature alarm setting” and the corresponding indicator
light will be on.
● “Cancel buzz”: In lock mode, when an alarm occurs, press this key to silence the buzz for one hour, but the alarm
by flashing light signals is not cancelled.
● The
“”△ or “▽” key is for the increase or decrease of values.
Starting and temperature setting
The freezer’s control system is provided with functions of password protection and keyboard
locking.
The freezer must be unlocked before use: first press the “ ”
△ key, the digits in the internal
temperature display area will flash, and then press the “
△” or “▽” key to set the value as “06”, and
finally press and hold the “Function selection” key for 8s to unlock the freezer.
After installation, the freezer must be left still for over 24 hours before being energized.
1. Initial state upon power-on:
Turn on the battery switch at rear upper of compressor compartment, the SLT freezer is energized
and enters into the “power-on” state, and all the parameters are the data before last power failure,
and the display indicates actual temperature. The temperature setting is -126 when the freezer ℃
leaves factory.
If actual temperature is higher than temperature setting, delay for one minute, and then the
compressor starts running. Meanwhile, if actual temperature is in the range of alarm temperature,
light signals flash accompanied with audible buzz.
2. Adjustment of set values
2.1 Unlock
2.2 “Function selection”: in unlock mode, press this key to select the desired function from “Internal
temperature setting”, “High-temperature alarm setting” and “Low-temperature alarm setting”.
“Internal temperature setting”: press the “Function selection” key continuously until the “Internal
temperature 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 would increase or decrease by 1 if press “ ” or “
△▽”
intermittently, while the value would increase or decrease rapidly and
continuously by 1 if press and hold