Labwit ZWYC-290A - 8 Alarms

Ultimate-cell Stackable Shaking Incubator V2017.2
44
8. ALARMS
A sophisticated alarm system monitors all system parameters for any fault condition. At the
same time, built in alarm delays protect the user from nuisance alarms created by routine
use such as door openings. A list of alarm descriptions, the conditions they look for, and how
they are delayed and displayed are in the table below:
Alarm Description
Condition Detected
Delay*
Alarm
Rings Back
Other Notes
Temperature
Deviation
Temperature reading
deviates by ±Deviation
value setpoint
4 Minute Delay
of Continuous
Abnormal
Reading
Yes, 5 Mins,
Display shows “Alarm: Tempera-
ture! “;
Display continues to show
Temperature reading
Speed Deviation
Speed reading deviates
by ±Deviation value
setpoint
4 Minute Delay
of Continuous
Abnormal
Reading
Yes, 5 Mins,
Display shows “Alarm: Speed! “;
Display continues to show speed
reading
Humidity Devia-
tion
Humidity reading
deviates by ±Deviation
value setpoint
4 Minute Delay
of Continuous
Abnormal
Reading
Yes, 5 Mins,
Display shows “Alarm: Humidity! “;
Display continues to show
humidity reading
CO
2
Percentage
Deviation
CO
2
reading deviates
by ±Deviation value
setpoint
4 Minute Delay
of Continuous
Abnormal
Reading
Yes, 5 Mins
Display shows “Alarm: CO
2
!“;
Display continues to show CO
2
Percentage reading
Temperature
Sensor Failure
Faulty Temp Sensor
Detected
No Delay
Yes,
immediately
Text Display “Alarm: Temperature
Sensor Failure! “; Heating will be
disabled
Humidity Sensor
Failure
Faulty Humidity Sensor
Detected
No Delay
Yes,
immediately
Display shows “Alarm: Humidity
Sensor Failure!", Humidification
system will be disabled
CO
2
Sensor
Failure
Faulty CO
2
Sensor
Detected
No Delay
Yes,
immediately
Display shows “Alarm: CO
2
Sensor
Failure! “; CO
2
system will be
disabled.
Door Ajar
Front Door Open
1 Minute Delay
of Continuous
Door Ajar status
Yes, 4mins
Display shows “Alarm: Door Ajar!
“, CO
2
injection is disabled,
Heating/Cooling is disabled,
internal fan shuts down, shaking
motion stops.
Low CO
2
gas
Supply
Gas supply of the CO
2
source are low
No Delay
No
Display shows “Alarm: Low CO
2
gas supply! ”, continues to show
CO2 reading