Thermo Scientific 7400 Series, Руководство по эксплуатации и техническому обслуживанию

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7007400 Cryoplus 3-5 Thermo Scientific
Section 3
Troubleshooting the Alarms
Level
Sensor
Fill
V
alve
Bypass
V
alve
Open
V
alve
Bypass Sensor
LN
Source
2
Silence
T
op
thr
ee
warning
lamps
flash.
The
alarm
bars
light.
The
audible
alarm
sounds.
The
F
ill
and
B
ypass
valv
es
close.
R
emote
alarm
contacts
activ
ate
immediately
.
B
ad
A
C
input
err
or
.
T
urn
the
unit
off
for
fiv
e
to
ten
minutes
and
turn
it
back
on.
If
alarm
condition
persists,
call
the
T
echnical
Ser
vices
D
epar
tment.
1
alarm7a.cdr
Front
Panel
Alarm
Alarm
Description
and
Probable
Cause
System
Response
Printer
Error Code
Corrective
Action
The
audible
alarm
can
only
be
silenced
with
the
key
switch
in
the
Programming
Access
position.
Return
the
key
switch
to
the
Lock
position
after
silence.
Alarms
do
not
ring
back
except
where
noted.
Bottom
thr
ee
warning
lamps
flash
and
the
alarm
bars
light.
The audible
alarm
sounds.
F
ill
and
B
ypass
valv
es
close.
R
emote
alarm
contacts
activ
ate
immediately
.
Analog
to
digital
po
w
er
conv
er
ter
err
or
.
T
urn
the
unit
off
for
fiv
e
to
ten
minutes
and
turn
it
back
on.
If
alarm
condition
persists,
call
the
T
echnical
Ser
vices
D
epar
tment.
2
Level
Sensor
Fill
V
alve
Bypass
V
alve
Open
V
alve
Bypass
Sensor
LN
Source
2
Silence
F
ill
V
alv
e
warning
lamp
and
the
alarm
bars
light.
The
audible
alarm
sounds.
F
ill
and
B
ypass
valv
es
close.
The
remote
alarm
contacts
set
to
activ
ate
in
30
minutes.
P
rinter
prints
E
rr
or
Code
3.
System
does
not
detect
that
the
valv
e
is
connected
or
operating.
V
alv
e
coil
may
be
open.
W
ir
es
may
be
cut
or
br
oken.
E
lectrical
connector
may
Check
connectors
on
the
valv
e
and
on
the
cir
cuit
boar
d.
Check
all
wir
es
for
cuts
or
br
eaks.
Check
the
electrical
continuity
of
the
fill
valv
e
coil.
R
epair
or
replace
as
necessar
y.
3
Level
Sensor
Fill
V
alve
Bypass
V
alve
Open
V
alve
Bypass Sensor
LN
Source
2
Silence