7007452 CryoMed Freezer 9-3
Thermo Scientific
Troub
le
sho
ot
in
g Guid
e
Sy
m
p
to
m
P
os
si
ble Cau
se
V
erification
Solu
tion
No te
m
p
eratu
re dis
p
la
y
(oth
er
dis
p
la
y
s n
o
rm
al)
1). C
h
a
m
ber un
der/
ov
er l
im
it
te
m
p
eratu
re
2).
Pow
er su
ppl
y
3). Dis
p
lay
Board
4). C
o
n
troller boa
rd
1). Di
sp
la
y
sh
o
w
in
g
“
+
_ _” or “
-_ _” an
d ch
a
m
ber
appears
to be
bey
o
n
d
n
o
rm
al te
m
p
erat
u
res
. C
onf
ir
m
v
o
lt
ag
e on
h
eat
er or s
o
le
n
o
id
s (120/
230VA
C
) can
be
tu
rn
ed on
/o
ff
b
y
co
n
troller in
m
a
nu
al
m
ode. If
n
o
t:
1a). If
solen
o
id v
o
ltag
e tu
rn
ed on
/off
i
n
m
a
nu
al
m
o
de
b
u
t ch
a
m
b
er s
till cold
/co
o
lin
g
, co
n
fir
m
so
le
n
o
id
v
al
v
e
s s
toppi
ng
fl
o
w
o
f LN2. If
n
o
t:
2). Veri
fy
12/
-12VDC
at
con
trol
ler board p
o
w
er
con
n
ector. If
n
o
t:
3
).
Co
nfir
m
c
o
ntr
o
lle
r r
egula
te
s a
t 2
5
C b
y
p
re
ssi
ng
Warm
k
e
y
.
4). If
con
trol
ler ov
ers
h
oot
s 25C
i
n
War
m
m
ode or
w
o
n
’t i
n
it
iate W
ar
m
m
o
d
e:
1). R
eplace con
troller b
o
ard
1a). R
eplace s
o
len
oid v
alv
es
2). R
eplace p
o
w
er s
u
ppl
y
(
m
ay
als
o be con
troller boa
rd)
3). R
eplace dis
p
lay
board (m
ay
als
o be con
troller boa
rd)
4). R
eplace con
troller b
o
ard
“I
LL
” on
te
m
p
erat
u
re dis
p
la
y
1
). C
h
a
m
ber or S
a
m
p
le probe,
con
n
ector s
cre
w
, con
n
ec
tor.
2).
Pow
er su
ppl
y
3). C
o
n
troller boa
rd
1). Meas
u
re res
is
tan
ce bet
w
ee
n
pin
s o
n
probe h
arn
es
s
in
s
idecar f
o
r Ch
a
m
ber or Sam
p
le. If
m
o
re t
h
an
a
fe
w
ohm
s:
2). Veri
fy
5/
12/
-12VD
C
at
con
trol
le
r board p
o
w
er
con
n
ector. If
n
o
t:
3). Sh
ort th
er
m
o
cou
p
le in
p
u
ts on
controller board
w
it
h
j
u
m
p
er
w
ire or ben
t paper clip. If
“
ILL
” dis
p
la
y
still p
resen
t:
1).
T
ig
h
ten
conn
ector s
cre
w
s,
replace pr
obe, h
arn
es
s or
con
n
ector.
2). R
eplace p
o
w
er s
u
ppl
y
3). R
eplace con
troller b
o
ard
W
ill n
o
t ru
n
selected p
ro
file
1
). Ch
a
m
b
er/Sa
m
p
le p
ro
b
e
2). Do
or o
p
en
/aj
ar
3). Do
or sw
it
c
h
4). C
o
n
troller boa
rd
1). “
IL
L
” o
n
Ch
a
m
ber or Sam
p
le te
m
p
eratu
re
1a). Co
n
fir
m
prof
ile does n
o
t use Sa
m
p
le te
m
p
erat
u
re
2). C
o
n
fir
m
door is
fu
ll
y
c
los
ed/latch
ed (Run
lit bu
t
no
fa
n)
3). C
o
n
fi
rm
resi
st
a
n
ce of
door sw
it
c
h
w
it
h
door
cl
os
ed i
s les
s t
h
an
10 ohm
s. If
n
o
t:
4). R
u
n
T
es
t an
d S
o
ft
w
are Ch
ec
k
sum
tes
ts
in
Conf
ig
u
ratio
n
/Cal
ibration
– Serv
ice
m
enu
. If
f
a
ilu
re
s
pres
en
ted:
1). S
ee “
ILL
” t
rou
blesh
oot
ing
1
a)
. R
emo
v
e s
a
mp
le
t
e
mp
er
at
u
re
fro
m
prof
il
e or add s
am
p
le
probe.
2). C
los
e/
la
tc
h
door
3). R
eplace d
oor s
w
itch
a
n
d/or
ma
g
ne
t
4). R
eplace con
troller b
o
ard
Содержание 7450
Страница 1: ...Model 7452 Series CryoMed Controlled Rate Freezer Operating and Maintenance Manual 7007452 Rev 11 ...
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Страница 114: ...7007452 CryoMed Freezer AA 1 Thermo Scientific ...
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Страница 117: ...AA 4 7007452 CryoMed Freezer Thermo Scientific ...
Страница 120: ...Thermo Scientific Controlled Environment Equipment 401 Millcreek Road Marietta Ohio 45750 United States www thermo com ...