Thermo Scientific SHKE8000 Series, Руководство по обслуживанию

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Alarm Message
Alarm Criteria
Alarm Delay*
Alarm
Ringback*
System State
Corrective
Action
T
emperature at the over temp sensor
is a few tenths of a degree over the shut down set point
T
emperature at the over temp sensor
is a few tenths of a degree under the shut down set point
Sensor circuit is open or shorted beyond
the expected resistance range in either direction
Sensor circuit is open or shorted beyond
the expected resistance range in either direction.
T
emperature is above the control system’
s
temperature tracking limit
None None
* *
30 sec.
30 sec.
15 min. 15 min. 15 min.
15 min.
15 min.
Alarm light on Audible alarm on Blower fans on Shaker motor on Heaters of
f
Alarm light on Audible alarm on Blower fans on Shaker motor on Refrig Compressor
of
f
Alarm light on Audible alarm on Blower fans on Shaker motor on Heaters of
f
Alarm light on Audible alarm on Blower fans on Shaker motor on Heaters on
Alarm light on Audible alarm on Blower fans on Shaker motor on Heaters on
Press SILENCE to silence the audible alarm Air intake blockage Over temperature probe malfunction Sensor connector unplugged Heater circuit not cycling Press
to silence the audible alarm
Over temperature probe malfunction Sensor connector unplugged Heater circuit not cycling
SILENCE
Refrigeration system stuck on Main circuit board failure Call
T
echnical Services Department
Press SILENCE to silence the audible alarm Check board connector Check sensor circuit Replace sensor Call
T
echnical Services Department
Press SILENCE to silence the audible alarm Check board connector Check sensor circuit Replace sensor Call
T
echnical Services Department
Press SILENCE to silence the audible alarm Check temperature tracking limit Check sensor circuit Replace main temperature sensor Call
T
echnical Services Department
*
Alarm Delay and Ringback times are approximate
**
A
3.5
hour
time delay
is built into
the
system
to
allow
the
shaker to
reach
the
temperature setpoint.
When
this
point
is reached,
a 20
minute delay
becomes ef
fective.
When
the
lid
is opened, a 15
minute interval is added
to
allow
the
system
to
recover
to
the
set temperature. (Note:
all of
these
times are approximate)
Main circuit board failure Call
T
echnical Services
Department
Over
T
emp Shutdown
Under
T
emp Shutdown
Over
T
emp Sensor
T
emperature is High
Main
T
emp Sensor