Caron 6404-4 - Manual (Page 48)

6400/6404 Series Operations Manual Page 48 of 54
Rev F 09/18/14
SECTION 10 – 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* Audible
/ Visual
or Both
Alarm
Rings
Back
Other Notes
TEMP SENSOR ERROR Faulty Temp Sensor
Detected
No Delay Both Yes Display shows “---“; Heating will
be disabled
CO2 SENSOR ERROR Faulty CO2 Sensor
Detected
No Delay Both Yes Display shows “---“; CO2 will be
disabled
RH SENSOR ERROR Faulty Humidity
Sensor Detected
No Delay Both Yes Display shows “---“;
OVER TEMPERATURE Temperature reading
greater than
Overtemp Alarm
No Delay Both Yes Heating is disabled, Display
continues to show Temp
reading
HIGH CO2 LEVEL CO2 reading greater
than Overtemp
Alarm
15 Minute Delay of
Continuous High Reading
Both Yes CO2 injection is disabled,
display continues to show CO2
reading
DOOR OPEN Outer Door Open Programmable 1-15
minutes
Both Yes CO2 injection is disabled,
internal fan shuts down
LOW % RH
(optional)
Humidity reading
Lower than Low
%RH Alarm
Startup Delay** & 30
Minute Delay of
Continuous Low Reading
Both Yes Display continues to show Rh
reading
LOW TEMPERATURE Temperature reading
lower than Low
Temp Alarm
Startup Delay** & 15
Minute Delay of
Continuous Low Reading
Both Yes Display continues to show
Temp reading
LOW CO2 LEVEL CO2 reading lower
than Low CO2 Alarm
Startup Delay** & 15
Minute Delay of
Continuous Low Reading
Both Yes Display continues to show CO2
reading
HIGH O2 LEVEL O2 reading greater
than High O2 alarm
Startup Delay** & 15
Minute Delay of
Continuous High Reading
Both Yes Display continues to show O2
reading
LOW O2 LEVEL O2 reading lower
than Low O2 Alarm
15 Minute Delay of
Continuous Low Reading
Both Yes N2 injection is disabled, display
continues to show O2 reading
ALL CO2 TANKS LOW
(optional)
Optional Gas Guard
indicates both CO2
tanks are low
No Delay Both No Display continues to show CO2
reading
CO2 TANK 1 LOW
(optional)
Optional Gas Guard
indicates tank 1 has
low pressure
15 Minute Delay of
Continuous Low Reading
Both No Solenoid switches to tank 2
inlet. Display continues to
show CO2 reading
CO2 TANK 2 LOW
(optional)
Optional Gas Guard
indicates tank 2 has
low pressure
15 Minute Delay of
Continuous Low Reading
Both No Solenoid switches to tank 1
inlet. Display continues to
show CO2 reading
ALL N2 TANKS LOW
(optional)
Optional Gas Guard
indicates both N2
tanks are low
No Delay Both No Display continues to show O2
reading
N2 TANK 1 LOW
(optional)
Optional Gas Guard
indicates N2 tank 1
has low pressure
15 Minute Delay of
Continuous Low Reading
Both No Solenoid switches to tank 2
inlet. Display continues to
show O2 reading
N2 TANK 2 LOW
(optional)
Optional Gas Guard
indicates N2 tank 2
has low pressure
15 Minute Delay of
Continuous Low Reading
Both No Solenoid switches to tank 1
inlet. Display continues to
show O2 reading
* Status message is shown in the message center status menu immediately; unless in startup delay.
** To avoid nuisance alarms on startup, alarm is delayed until parameter reaches alarm limit the first time.