Instruction Manual

15
If setting C8 is set to “0”, then after alarm is canceled, the alarm relay does not close. If C9 is set to
“0”, then after the alarm cancel button is pushed, the buzzer does not restart.
If setting other numbers, then after reaching delay time, buzzer sounds one more time. (Under the
condition of alarm not terminating)
Abnormal work mode: When air sensor is short-circuited or high temperature over limit (＞
66°C/151°F), "1H" is displayed; when air sensor is open-circuited or low temperature over limit (＜-
40°C/°F) "1L" is displayed. Compressor will enter the force running mode, according to C10, C11 set
parameters running in sequence.
When product sensor is short-circuited, open-circuited or over limit (＞66°C/151°F), alternate display
2H and air temperature, the product temperature sensor open-circuited or low temperature over limit
(＜-40°C/°F), alternate display 2L and air temperature.
Instrument running alarm indication list
Alarm type
Compressor running
Display flash
Refrigerator high temp. alarm
Compressor on
H1 delay alarm
Refrigerator low temp. alarm
Compressor off
L0 delay alarm
Air temp. sensor short-circuited
Press C10, C11 to run the
comp.
1H in time alarm
Air temp. sensor open-circuited
Press C10, C11 to run the
comp.
1L in time alarm
Product temp. sensor short-
circuited
2H in time alarm
Product temp. sensor open-
circuited
2L in time alarm
Product temperature high temp.
Limit alarm
H2 delay alarm
Product temperature low temp.
Limit alarm
L2 delay alarm
Electric supply off alarm
EEL flash and alarm in
time
Door open delay alarm
Dr flash and delay alarm
When the door is open, the light switch can turn the light on and off.