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FLT5A
Th
erm
om
ete
r
Pu
blic
atio
n N
º AD
19
81
78
Issu
e C
04
/03
User G
uid
e
La
nd
In
stru
me
nts
In
tern
atio
na
l
Dro
nfie
ld, S
18
1D
J
En
gla
nd
Te
lep
ho
ne
: (0
12
46
) 4
17
69
1
Fa
csim
ile: (0
12
46
) 41
05
85
Em
ail:
infra
red
.sa
les@
lan
din
st.c
om
Inte
rne
t: w
ww
.lan
din
st.c
om
La
nd
In
stru
me
nts
In
tern
atio
na
l
10
Frie
nd
s L
an
e
Ne
wto
wn
, PA
18
94
0-1
80
4, U
.S.A
.
Te
lep
ho
ne
: (21
5) 5
04
-80
00
Fa
csim
ile: (2
15
) 50
4-0
87
9
Em
ail:
irsa
les@
lan
din
stru
me
nts
.ne
t
Inte
rne
t: w
ww
.lan
din
stru
me
nts
.ne
t
© L
an
d In
stru
men
ts In
tern
atio
nal, 2
00
3
ab
cin
stru
men
ts in
tern
atio
nal
FLT5A
Th
erm
om
ete
r
Pu
blic
atio
n N
º AD
19
81
78
Issu
e C
04
/03
User G
uid
e
La
nd
In
stru
me
nts
In
tern
atio
na
l
Dro
nfie
ld, S
18
1D
J
En
gla
nd
Te
lep
ho
ne
: (0
12
46
) 4
17
69
1
Fa
csim
ile: (0
12
46
) 41
05
85
Em
ail:
infra
red
.sa
les@
lan
din
st.c
om
Inte
rne
t: w
ww
.lan
din
st.c
om
La
nd
In
stru
me
nts
In
tern
atio
na
l
10
Frie
nd
s L
an
e
Ne
wto
wn
, PA
18
94
0-1
80
4, U
.S.A
.
Te
lep
ho
ne
: (21
5) 5
04
-80
00
Fa
csim
ile: (2
15
) 50
4-0
87
9
Em
ail:
irsa
les@
lan
din
stru
me
nts
.ne
t
Inte
rne
t: w
ww
.lan
din
stru
me
nts
.ne
t
© L
an
d In
stru
men
ts In
tern
atio
nal, 2
00
3
ab
cin
stru
men
ts in
tern
atio
nal
Us
er G
uid
eU
se
r Gu
ide
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
All p
ackagin
g m
ate
rial u
sed fo
r this
pro
duct is
100%
recycla
ble
.
abcdefgABCThe Q
uality
Managem
ent S
yste
m o
f Land In
stru
ments
Inte
rnatio
nal L
td. is
appro
ved to
BS
EN
ISO
9001:2
000 fo
r the d
esig
n a
nd m
anufa
ctu
re, s
tockhold
ing,
in-h
ouse re
pair a
nd s
ite s
erv
icin
g o
f non c
onta
ct te
mpera
ture
measurin
g
instru
menta
tion. A
ssocia
ted s
oftw
are
desig
ned a
nd d
evelo
ped in
accord
ance
with
Tic
kIT
.
Calib
ratio
n c
ertific
ate
s a
re a
vaila
ble
from
our U
KA
S a
ccre
dite
d C
alib
ratio
n
Labora
tory
N
o.
0034.
The Land calib
ratio
n la
bora
tory
com
plie
s w
ith th
e
require
ments
of th
e in
tern
atio
nal s
tandard
BS
EN
ISO
/IEC
17025.
This
pro
duct c
om
plie
s w
ith c
urre
nt E
uro
pe
an d
irectiv
es re
latin
g
to e
lectro
ma
gne
tic c
om
pa
tibility
and
sa
fety.
(EM
C d
irectiv
e 8
9/3
36
/EE
C; L
ow
vo
ltag
e d
irectiv
e 7
3/2
3/E
EC
)
All p
ackagin
g m
ate
rial u
sed fo
r this
pro
duct is
100%
recycla
ble
.
abcdefgABCThe Q
uality
Managem
ent S
yste
m o
f Land In
stru
ments
Inte
rnatio
nal L
td. is
appro
ved to
BS
EN
ISO
9001:2
000 fo
r the d
esig
n a
nd m
anufa
ctu
re, s
tockhold
ing,
in-h
ouse re
pair a
nd s
ite s
erv
icin
g o
f non c
onta
ct te
mpera
ture
measurin
g
instru
menta
tion. A
ssocia
ted s
oftw
are
desig
ned a
nd d
evelo
ped in
accord
ance
with
Tic
kIT
.
Calib
ratio
n c
ertific
ate
s a
re a
vaila
ble
from
our U
KA
S a
ccre
dite
d C
alib
ratio
n
Labora
tory
N
o.
0034.
The Land calib
ratio
n la
bora
tory
com
plie
s w
ith th
e
require
ments
of th
e in
tern
atio
nal s
tandard
BS
EN
ISO
/IEC
17025.
This
pro
duct c
om
plie
s w
ith c
urre
nt E
uro
pe
an d
irectiv
es re
latin
g
to e
lectro
ma
gne
tic c
om
pa
tibility
and
sa
fety.
(EM
C d
irectiv
e 8
9/3
36
/EE
C; L
ow
vo
ltag
e d
irectiv
e 7
3/2
3/E
EC
)
Us
er G
uid
eU
se
r Gu
ide
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
SA
FE
TY
INF
OR
MA
TIO
N
Symbol
Publication
Description
IEC
417, N
o. 5
031
Dire
ct c
urre
nt
IEC
417, N
o. 5
032
Alte
rnatin
g c
urre
nt
IEC
417, N
o. 5
033
Both
dire
ct a
nd
alte
rnatin
g c
urre
nt
IEC
617-2
, No. 0
2-0
2-0
6T
hre
e-p
hase a
ltern
atin
g
curre
nt
IEC
417, N
o. 5
017
Earth
(gro
und) te
rmin
al
IEC
417, N
o. 5
019
Pro
tectiv
e c
onducto
r
term
inal
IEC
417, N
o. 5
020
Fra
me o
r chassis
term
inal
IEC
417, N
o. 5
021
Equip
ote
ntia
lity
IEC
417, N
o. 5
007
On (S
upply
)
IEC
417, N
o. 5
008
Off (S
upply
)
IEC
417, N
o. 5
172
Equip
ment p
rote
cte
d
thro
ughout b
y d
ouble
insula
tion o
r rein
forc
ed
insula
tion (e
quiv
ale
nt to
Cla
ss II o
f IEC
536)
Safe
ty in
form
atio
n
3
SA
FE
TY
INF
OR
MA
TIO
N
Symbol
Publication
Description
IEC
417, N
o. 5
031
Dire
ct c
urre
nt
IEC
417, N
o. 5
032
Alte
rnatin
g c
urre
nt
IEC
417, N
o. 5
033
Both
dire
ct a
nd
alte
rnatin
g c
urre
nt
IEC
617-2
, No. 0
2-0
2-0
6T
hre
e-p
hase a
ltern
atin
g
curre
nt
IEC
417, N
o. 5
017
Earth
(gro
und) te
rmin
al
IEC
417, N
o. 5
019
Pro
tectiv
e c
onducto
r
term
inal
IEC
417, N
o. 5
020
Fra
me o
r chassis
term
inal
IEC
417, N
o. 5
021
Equip
ote
ntia
lity
IEC
417, N
o. 5
007
On (S
upply
)
IEC
417, N
o. 5
008
Off (S
upply
)
IEC
417, N
o. 5
172
Equip
ment p
rote
cte
d
thro
ughout b
y d
ouble
insula
tion o
r rein
forc
ed
Safe
ty in
form
atio
n
3
Us
er G
uid
eU
se
r Gu
ide
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Safe
ty in
form
atio
n
SA
FE
TY
INF
OR
MA
TIO
N (C
ON
TIN
UE
D...)
Symbol
Publication
Description
ISO
3864, N
o. B
.3.6
Cautio
n, ris
k o
f ele
ctric
shock
ISO
3864, N
o. B
.3.1
Cautio
n
BS
EN
100015
Observ
e p
recautio
ns fo
r
handlin
g e
lectro
sta
tic
dis
charg
e s
ensitiv
e
devic
es
BS
EN
60825-1
Warn
ing, la
ser ra
dia
tion
Refe
r to th
e O
pera
ting
Instru
ctio
ns.
SA
FE
TY
INF
OR
MA
TIO
N (C
ON
TIN
UE
D...)
Symbol
Publication
Description
ISO
3864, N
o. B
.3.6
Cautio
n, ris
k o
f ele
ctric
shock
ISO
3864, N
o. B
.3.1
Cautio
n
BS
EN
100015
Observ
e p
recautio
ns fo
r
handlin
g e
lectro
sta
tic
dis
charg
e s
ensitiv
e
devic
es
BS
EN
60825-1
Warn
ing, la
ser ra
dia
tion
Refe
r to th
e O
pera
ting
Instru
ctio
ns.
Safe
ty in
form
atio
n
Us
er G
uid
eU
se
r Gu
ide
Co
nte
nts
Co
nte
nts
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Co
nte
nts
1.0
INT
RO
DU
CT
ION
1
1.1
Ab
ou
t this
gu
ide
1
1.2
Ab
ou
t the
FL
T5
A th
erm
om
ete
r1
1.3
Un
pa
ckin
g th
e th
erm
om
ete
r2
1.4
Sp
ec
ifica
tion
s3
2.0
INS
TA
LL
ING
TH
E T
HE
RM
OM
ET
ER
5
2.1
Ch
oo
sin
g a
loca
tion
for th
e th
erm
om
ete
r5
2.2
Po
we
r su
pp
lies a
nd
te
mp
era
ture
d
isp
lays
5
3.0
US
ING
TH
E T
HE
RM
OM
ET
ER
7
3.1
Lo
ca
tion
of c
on
trols
7
3.2
Ad
justin
g th
e 'E
mis
siv
ity' v
alu
e7
3.3
Ad
justin
g th
e a
vera
ge
r 'Re
sp
on
se
Sp
ee
d'
9
3.4
No
te y
ou
r se
tting
s9
3.5
Ele
ctric
al
co
nn
ectio
ns
11
4.0
MO
UN
TIN
GS
AN
D A
CC
ES
SO
RIE
S1
2
5.0
MA
INT
EN
AN
CE
13
Co
nte
nts
1.0
INT
RO
DU
CT
ION
1
1.1
Ab
ou
t this
gu
ide
1
1.2
Ab
ou
t the
FL
T5
A th
erm
om
ete
r1
1.3
Un
pa
ckin
g th
e th
erm
om
ete
r2
1.4
Sp
ec
ifica
tion
s3
2.0
INS
TA
LL
ING
TH
E T
HE
RM
OM
ET
ER
5
2.1
Ch
oo
sin
g a
loca
tion
for th
e th
erm
om
ete
r5
2.2
Po
we
r su
pp
lies a
nd
te
mp
era
ture
d
isp
lays
5
3.0
US
ING
TH
E T
HE
RM
OM
ET
ER
7
3.1
Lo
ca
tion
of c
on
trols
7
3.2
Ad
justin
g th
e 'E
mis
siv
ity' v
alu
e7
3.3
Ad
justin
g th
e a
vera
ge
r 'Re
sp
on
se
Sp
ee
d'
9
3.4
No
te y
ou
r se
tting
s9
3.5
Ele
ctric
al
co
nn
ectio
ns
11
4.0
MO
UN
TIN
GS
AN
D A
CC
ES
SO
RIE
S1
2
5.0
MA
INT
EN
AN
CE
13
Us
er G
uid
eU
se
r Gu
ide
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
1P
ag
e 1
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Fig
. 1 L
an
d F
LT
5A
Th
erm
om
ete
rS4970222
1.0
INT
RO
DU
CT
ION
1.1
Ab
ou
t this
gu
ide
This
guid
e g
ives th
e in
form
atio
n n
ecessary
for y
ou to
opera
te a
LA
ND
FL
T5A
Therm
om
ete
r. Basic
info
rmatio
n re
gard
ing in
sta
llatio
n is
conta
ined
with
in th
e In
sta
llatio
n G
uid
e. M
ore
deta
iled in
form
atio
n re
gard
ing s
erv
icin
g,
repair a
nd c
alib
ratio
n o
f the th
erm
om
ete
r is c
onta
ined in
the S
erv
ice
Manual.
1.2
Ab
ou
t the
FL
T5
A th
erm
om
ete
r
The L
AN
D F
LT
5A
therm
om
ete
r is a
hig
hly
accura
te, n
on c
onta
ct
therm
om
ete
r desig
ned fo
r independent o
r ST
AN
D A
LO
NE
use.
The th
erm
om
ete
r featu
res in
clu
de:
•S
tand A
lone o
pera
tion.
•A
dju
sta
ble
response s
peed.
•4 to
20m
A lo
op p
ow
ere
d, o
utp
ut lin
ear o
ver th
e te
mpera
ture
span o
f
the th
erm
om
ete
r.
•B
uilt in
Em
issiv
ity c
ontro
ls.
Fig
. 1 L
an
d F
LT
5A
Th
erm
om
ete
rS4970222
1.0
INT
RO
DU
CT
ION
1.1
Ab
ou
t this
gu
ide
This
guid
e g
ives th
e in
form
atio
n n
ecessary
for y
ou to
opera
te a
LA
ND
FL
T5A
Therm
om
ete
r. Basic
info
rmatio
n re
gard
ing in
sta
llatio
n is
conta
ined
with
in th
e In
sta
llatio
n G
uid
e. M
ore
deta
iled in
form
atio
n re
gard
ing s
erv
icin
g,
repair a
nd c
alib
ratio
n o
f the th
erm
om
ete
r is c
onta
ined in
the S
erv
ice
Manual.
1.2
Ab
ou
t the
FL
T5
A th
erm
om
ete
r
The L
AN
D F
LT
5A
therm
om
ete
r is a
hig
hly
accura
te, n
on c
onta
ct
therm
om
ete
r desig
ned fo
r independent o
r ST
AN
D A
LO
NE
use.
The th
erm
om
ete
r featu
res in
clu
de:
•S
tand A
lone o
pera
tion.
•A
dju
sta
ble
response s
peed.
•4 to
20m
A lo
op p
ow
ere
d, o
utp
ut lin
ear o
ver th
e te
mpera
ture
span o
f
the th
erm
om
ete
r.
•B
uilt in
Em
issiv
ity c
ontro
ls.
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
2P
ag
e 2
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
The L
AN
D F
LT
5A
therm
om
ete
r is d
esig
ned to
pro
vid
e p
recis
e, n
on c
onta
ct
tem
pera
ture
measure
ment in
float lin
e a
pplic
atio
ns.
A c
om
pre
hensiv
e ra
nge o
f mountin
gs a
nd a
ccessorie
s is
availa
ble
, see
Sectio
n 4
.0.
1.3
Un
pa
ck
ing
the
the
rmo
me
ter
Alo
ng w
ith th
is U
ser G
uid
e, th
e th
erm
om
ete
r packagin
g w
ill als
o c
onta
in th
efo
llow
ing ite
ms:
•E
nvelo
pe c
onta
inin
g th
is U
ser G
uid
e.
•B
inder, fo
r your th
erm
om
ete
r and p
ow
er s
upply
user
docum
enta
tion.
•F
LT
5A
therm
om
ete
r (fitted w
ith p
rote
ctio
n c
ap o
n th
e le
ns).
It is re
com
mended th
at th
e le
ns p
rote
ctio
n c
ap is
kept a
ttached u
ntil th
eth
erm
om
ete
r is in
sta
lled.
Fig
. 2 T
he
rmo
me
ter w
ith A
ir Pu
rge
, Pro
tectio
n J
acke
t an
d B
ack C
ap
S4970223
Air P
urg
eT
herm
om
ete
r Ja
cke
tB
ack C
ap
The L
AN
D F
LT
5A
therm
om
ete
r is d
esig
ned to
pro
vid
e p
recis
e, n
on c
onta
ct
tem
pera
ture
measure
ment in
float lin
e a
pplic
atio
ns.
A c
om
pre
hensiv
e ra
nge o
f mountin
gs a
nd a
ccessorie
s is
availa
ble
, see
Sectio
n 4
.0.
1.3
Un
pa
ck
ing
the
the
rmo
me
ter
Alo
ng w
ith th
is U
ser G
uid
e, th
e th
erm
om
ete
r packagin
g w
ill als
o c
onta
in th
efo
llow
ing ite
ms:
•E
nvelo
pe c
onta
inin
g th
is U
ser G
uid
e.
•B
inder, fo
r your th
erm
om
ete
r and p
ow
er s
upply
user
docum
enta
tion.
•F
LT
5A
therm
om
ete
r (fitted w
ith p
rote
ctio
n c
ap o
n th
e le
ns).
It is re
com
mended th
at th
e le
ns p
rote
ctio
n c
ap is
kept a
ttached u
ntil th
eth
erm
om
ete
r is in
sta
lled.
Fig
. 2 T
he
rmo
me
ter w
ith A
ir Pu
rge
, Pro
tectio
n J
acke
t an
d B
ack C
ap
S4970223
Air P
urg
eT
herm
om
ete
r Ja
cke
tB
ack C
ap
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
3P
ag
e 3
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
1.4
Sp
ec
ifica
tion
s
Range
:250 to
1100°C
500 to
2000°F
Spectra
l response
:4.8
to 5
.2µ
m
Fie
ld o
f vie
w:
50:1
at 1
m fo
cus (fix
ed)
50:1
at 3
9.4
in fo
cus (fix
ed)
Outp
ut
:4 to
20m
A c
urre
nt lo
op
Response tim
e (0
to 9
5%
):
1 to
10 s
econds a
dju
sta
ble
Em
issiv
ity a
dju
stm
ent
:0.3
to 1
.10 in
0.0
1 s
teps
Resolu
tion
:0.2
°C (s
low
response s
ettin
g)
0.4
°F (s
low
response s
ettin
g)
Sta
bility
:0.0
23%
of s
pan p
er 1
°C c
hange in
am
bie
nt
tem
pera
ture
0.0
23%
of s
pan p
er 2
°F c
hange in
am
bie
nt
tem
pera
ture
Accura
cy (a
bsolu
te)
:0.5
%K
+ 1
°C
0.5
%K
+ 2
°F
Am
bie
nt lim
its:
0 to
60°C
specifie
d; -1
0 to
80°C
opera
ting
32 to
140°F
specifie
d; 1
4 to
176°F
opera
ting
EM
C:
EN
50 0
82-2
(imm
unity
)
EN
50 0
81-1
(em
issio
n)
IEC
1010 (s
afe
ty)
Sealin
g:
IP65
Vib
ratio
n:
3g (1
0 to
300H
z)
Pow
er s
upply
:12 to
45V
d.c
.
1.4
Sp
ec
ifica
tion
s
Range
:250 to
1100°C
500 to
2000°F
Spectra
l response
:4.8
to 5
.2µ
m
Fie
ld o
f vie
w:
50:1
at 1
m fo
cus (fix
ed)
50:1
at 3
9.4
in fo
cus (fix
ed)
Outp
ut
:4 to
20m
A c
urre
nt lo
op
Response tim
e (0
to 9
5%
):
1 to
10 s
econds a
dju
sta
ble
Em
issiv
ity a
dju
stm
ent
:0.3
to 1
.10 in
0.0
1 s
teps
Resolu
tion
:0.2
°C (s
low
response s
ettin
g)
0.4
°F (s
low
response s
ettin
g)
Sta
bility
:0.0
23%
of s
pan p
er 1
°C c
hange in
am
bie
nt
tem
pera
ture
0.0
23%
of s
pan p
er 2
°F c
hange in
am
bie
nt
tem
pera
ture
Accura
cy (a
bsolu
te)
:0.5
%K
+ 1
°C
0.5
%K
+ 2
°F
Am
bie
nt lim
its:
0 to
60°C
specifie
d; -1
0 to
80°C
opera
ting
32 to
140°F
specifie
d; 1
4 to
176°F
opera
ting
EM
C:
EN
50 0
82-2
(imm
unity
)
EN
50 0
81-1
(em
issio
n)
IEC
1010 (s
afe
ty)
Sealin
g:
IP65
Vib
ratio
n:
3g (1
0 to
300H
z)
Pow
er s
upply
:12 to
45V
d.c
.
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
4P
ag
e 4
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Fig
. 3 T
arg
et S
ize
Ta
ble
for F
LT
5A
AD990201 47.2
39.4
31.5
23.6
15.8
7.9
0
Targ
et D
ista
nce (in
)
Targ
et D
iam
ete
r (in)
0.8
1.2
0.8
0.9
0.9
1.0
1200
1000
800
600
400
200
0
Targ
et D
ista
nce (m
m)
Targ
et D
iam
ete
r (mm
)
20
30
21
22
23
24
Fig
. 3 T
arg
et S
ize
Ta
ble
for F
LT
5A
AD990201 47.2
39.4
31.5
23.6
15.8
7.9
0
Targ
et D
ista
nce (in
)
Targ
et D
iam
ete
r (in)
0.8
1.2
0.8
0.9
0.9
1.0
1200
1000
800
600
400
200
0
Targ
et D
ista
nce (m
m)
Targ
et D
iam
ete
r (mm
)
20
30
21
22
23
24
Fig
. 4 T
he
rmo
me
ter in
sta
llatio
n d
ime
nsio
ns
AD990184
15
8m
m/6
.22
in8
0.5
mm
/3.1
7in
114mm/4.49in
Mou
ntin
g P
ad: 2
ho
les, ¼
in B
SW
,7
mm
/0.3
in d
ee
p o
n 2
5m
m/0
.98in
ce
ntre
s
Fig
. 4 T
he
rmo
me
ter in
sta
llatio
n d
ime
nsio
ns
AD990184
15
8m
m/6
.22
in8
0.5
mm
/3.1
7in
114mm/4.49in
Mou
ntin
g P
ad: 2
ho
les, ¼
in B
SW
,7
mm
/0.3
in d
ee
p o
n 2
5m
m/0
.98in
ce
ntre
s
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
5P
ag
e 5
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
2.0
INS
TA
LL
ING
TH
E T
HE
RM
OM
ET
ER
This
sectio
n c
onta
ins s
imila
r info
rmatio
n to
the th
erm
om
ete
r Insta
llatio
n
Guid
e.
If the th
erm
om
ete
r is to
be u
sed in
conju
nctio
n w
ith a
pro
tectio
n ja
cket a
nd
air p
urg
e, re
fer to
the in
sta
llatio
n g
uid
es p
rovid
ed w
ith th
ose a
ccessorie
s.
If the th
erm
om
ete
r is to
be in
sta
lled in
a lo
catio
n w
here
the a
mbie
nt
tem
pera
ture
is w
ithin
the ra
nges s
pecifie
d fo
r the th
erm
om
ete
r, and n
o a
ir
purg
ing is
require
d to
keep th
e le
ns c
lean, th
e th
erm
om
ete
r can b
e
mounte
d u
sin
g th
e tw
o ta
pped h
ole
s o
n th
e m
ountin
g p
ad. E
ither h
ole
can
be u
sed fo
r dire
ct trip
od m
ountin
g.
2.1
Ch
oo
sin
g a
loc
atio
n fo
r the
the
rmo
me
ter
The o
vera
ll dim
ensio
ns o
f the th
erm
om
ete
r insta
llatio
n a
re g
iven in
Fig
. 4.
1)
Choose a
locatio
n w
here
the th
erm
om
ete
r will n
ot b
e e
xposed to
excessiv
e h
eat, fu
mes a
nd s
pra
y.
Refe
r to th
e 'S
pecific
atio
n' (P
age 3
) for a
mbie
nt te
mpera
ture
limits
etc
.
2)
Refe
r to th
e T
arg
et S
ize T
able
(Fig
. 3). E
nsure
that th
e ta
rget
com
ple
tely
fills th
e fie
ld o
f vie
w a
t the c
hosen ta
rget d
ista
nce.
Check th
at n
oth
ing o
bstru
cts
the s
ightin
g p
ath
betw
een th
e
therm
om
ete
r and th
e ta
rget.
3)
Make s
ure
that th
e s
ightin
g p
ath
is fre
e fro
m s
moke, o
il or w
ate
r
spra
y.
4)
Ensure
that th
e c
hosen lo
catio
n fo
r the th
erm
om
ete
r allo
ws e
asy
access fo
r serv
icin
g.
2.2
Po
we
r su
pp
lies
an
d te
mp
era
ture
dis
pla
ys
The F
LT
5A
Therm
om
ete
r require
s a
pow
er s
upply
of 1
2 to
48V
d.c
.
2.0
INS
TA
LL
ING
TH
E T
HE
RM
OM
ET
ER
This
sectio
n c
onta
ins s
imila
r info
rmatio
n to
the th
erm
om
ete
r Insta
llatio
n
Guid
e.
If the th
erm
om
ete
r is to
be u
sed in
conju
nctio
n w
ith a
pro
tectio
n ja
cket a
nd
air p
urg
e, re
fer to
the in
sta
llatio
n g
uid
es p
rovid
ed w
ith th
ose a
ccessorie
s.
If the th
erm
om
ete
r is to
be in
sta
lled in
a lo
catio
n w
here
the a
mbie
nt
tem
pera
ture
is w
ithin
the ra
nges s
pecifie
d fo
r the th
erm
om
ete
r, and n
o a
ir
purg
ing is
require
d to
keep th
e le
ns c
lean, th
e th
erm
om
ete
r can b
e
mounte
d u
sin
g th
e tw
o ta
pped h
ole
s o
n th
e m
ountin
g p
ad. E
ither h
ole
can
be u
sed fo
r dire
ct trip
od m
ountin
g.
2.1
Ch
oo
sin
g a
loc
atio
n fo
r the
the
rmo
me
ter
The o
vera
ll dim
ensio
ns o
f the th
erm
om
ete
r insta
llatio
n a
re g
iven in
Fig
. 4.
1)
Choose a
locatio
n w
here
the th
erm
om
ete
r will n
ot b
e e
xposed to
excessiv
e h
eat, fu
mes a
nd s
pra
y.
Refe
r to th
e 'S
pecific
atio
n' (P
age 3
) for a
mbie
nt te
mpera
ture
limits
etc
.
2)
Refe
r to th
e T
arg
et S
ize T
able
(Fig
. 3). E
nsure
that th
e ta
rget
com
ple
tely
fills th
e fie
ld o
f vie
w a
t the c
hosen ta
rget d
ista
nce.
Check th
at n
oth
ing o
bstru
cts
the s
ightin
g p
ath
betw
een th
e
therm
om
ete
r and th
e ta
rget.
3)
Make s
ure
that th
e s
ightin
g p
ath
is fre
e fro
m s
moke, o
il or w
ate
r
spra
y.
4)
Ensure
that th
e c
hosen lo
catio
n fo
r the th
erm
om
ete
r allo
ws e
asy
access fo
r serv
icin
g.
2.2
Po
we
r su
pp
lies
an
d te
mp
era
ture
dis
pla
ys
The F
LT
5A
Therm
om
ete
r require
s a
pow
er s
upply
of 1
2 to
48V
d.c
.
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
6P
ag
e 6
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Fig
. 6 'E
mis
siv
ity' a
nd
'Re
sp
on
se
Sp
ee
d' c
on
trols
AD990202
Em
iss
ivity
Exa
mp
le =
0.8
5
SW
1
SW
2
P1
Re
sp
on
se
Sp
ee
dF
ully
an
ticlo
ckw
ise
= 1
se
c
Fu
lly c
lockw
ise
= 1
0se
c
Em
issiv
ity
0.1
0
0.8
00
.85
0.9
21
.00
1.0
9
SW
1
188900
SW
2
005209
Exa
mp
le s
ettin
gs
Fig
. 6 'E
mis
siv
ity' a
nd
'Re
sp
on
se
Sp
ee
d' c
on
trols
AD990202
Em
iss
ivity
Exa
mp
le =
0.8
5
SW
1
SW
2
P1
Re
sp
on
se
Sp
ee
dF
ully
an
ticlo
ckw
ise
= 1
se
c
Fu
lly c
lockw
ise
= 1
0se
c
Em
issiv
ity
0.1
0
0.8
00
.85
0.9
21
.00
1.0
9
SW
1
188900
SW
2
005209
Exa
mp
le s
ettin
gs
Fig
. 5 L
oca
tion
of th
e s
cre
w-o
n c
ap
AD990186
Fast
Scre
w-o
n c
ap
Fig
. 5 L
oca
tion
of th
e s
cre
w-o
n c
ap
AD990186
Fast
Scre
w-o
n c
ap
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
7P
ag
e 7
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
3.0
US
ING
TH
E T
HE
RM
OM
ET
ER
It is re
com
mended th
at th
e 'E
mis
siv
ity' a
nd 'R
esponse S
peed' c
ontro
ls a
re
set to
matc
h th
e re
quire
ments
of th
e p
artic
ula
r measure
ment lo
catio
n
befo
re in
sta
llatio
n. T
his
is p
artic
ula
rly re
levant if th
e th
erm
om
ete
r is to
be
used in
a lo
catio
n w
hic
h is
diffic
ult to
access a
nd/o
r used in
conju
nctio
n
with
a ja
cket a
nd b
ack c
ap.
3.1
Lo
ca
tion
of c
on
trols
The 'E
mis
siv
ity' a
nd 'R
esponse S
peed' c
ontro
l sw
itches a
re lo
cate
d o
n th
e
rear fa
ce o
f the th
erm
om
ete
r. The c
ontro
ls a
re p
rote
cte
d b
y a
scre
w-o
n
cap (S
ee F
ig. 5
).
NO
TE
To k
eep th
e th
erm
om
ete
r ele
ctro
nic
s s
eale
d
again
st in
gre
ss o
f dust a
nd m
ois
ture
, alw
ays
repla
ce th
e s
cre
w-o
n c
ap a
fter a
dju
stin
g th
e
settin
gs.
3.2
Ad
jus
ting
the
'Em
iss
ivity
' va
lue
For a
ccura
te te
mpera
ture
measure
ment, th
e 'E
mis
siv
ity' s
ettin
g m
ust b
e s
et
to c
orre
spond w
ith th
e ta
rget b
ein
g m
easure
d.
The e
mis
siv
ity c
an b
e s
et in
the ra
nge 0
.10 to
1.0
9 in
ste
ps o
f 0.0
1.
The F
LT
5A
is s
upplie
d w
ith th
e e
mis
siv
ity fa
cto
ry-s
et to
1.0
0.
The 'E
mis
siv
ity' v
alu
e is
set u
sin
g s
witc
hes S
W1 a
nd S
W2. S
ee F
ig. 6
.
When s
witc
h S
W1 is
set fro
m 1
to 9
, this
denote
s th
e firs
t figu
re a
fter th
e
decim
al p
oin
t of th
e e
mis
siv
ity v
alu
e.
e.g
.fo
r an e
mis
siv
ity v
alu
e o
f '0.8
5', s
et S
W1 to
'8' a
nd S
W2 to
'5'.
When s
witc
h S
W1 is
set to
0, th
is d
enote
s a
'1' b
efo
re, a
nd a
'0' a
fter, th
e
decim
al p
oin
t of th
e e
mis
siv
ity v
alu
e.
e.g
.fo
r an e
mis
siv
ity v
alu
e o
f '1.0
0', s
et S
W1 to
'0' a
nd S
W2 to
'0'.
3.0
US
ING
TH
E T
HE
RM
OM
ET
ER
It is re
com
mended th
at th
e 'E
mis
siv
ity' a
nd 'R
esponse S
peed' c
ontro
ls a
re
set to
matc
h th
e re
quire
ments
of th
e p
artic
ula
r measure
ment lo
catio
n
befo
re in
sta
llatio
n. T
his
is p
artic
ula
rly re
levant if th
e th
erm
om
ete
r is to
be
used in
a lo
catio
n w
hic
h is
diffic
ult to
access a
nd/o
r used in
conju
nctio
n
with
a ja
cket a
nd b
ack c
ap.
3.1
Lo
ca
tion
of c
on
trols
The 'E
mis
siv
ity' a
nd 'R
esponse S
peed' c
ontro
l sw
itches a
re lo
cate
d o
n th
e
rear fa
ce o
f the th
erm
om
ete
r. The c
ontro
ls a
re p
rote
cte
d b
y a
scre
w-o
n
cap (S
ee F
ig. 5
).
NO
TE
To k
eep th
e th
erm
om
ete
r ele
ctro
nic
s s
eale
d
again
st in
gre
ss o
f dust a
nd m
ois
ture
, alw
ays
repla
ce th
e s
cre
w-o
n c
ap a
fter a
dju
stin
g th
e
settin
gs.
3.2
Ad
jus
ting
the
'Em
iss
ivity
' va
lue
For a
ccura
te te
mpera
ture
measure
ment, th
e 'E
mis
siv
ity' s
ettin
g m
ust b
e s
et
to c
orre
spond w
ith th
e ta
rget b
ein
g m
easure
d.
The e
mis
siv
ity c
an b
e s
et in
the ra
nge 0
.10 to
1.0
9 in
ste
ps o
f 0.0
1.
The F
LT
5A
is s
upplie
d w
ith th
e e
mis
siv
ity fa
cto
ry-s
et to
1.0
0.
The 'E
mis
siv
ity' v
alu
e is
set u
sin
g s
witc
hes S
W1 a
nd S
W2. S
ee F
ig. 6
.
When s
witc
h S
W1 is
set fro
m 1
to 9
, this
denote
s th
e firs
t figu
re a
fter th
e
decim
al p
oin
t of th
e e
mis
siv
ity v
alu
e.
e.g
.fo
r an e
mis
siv
ity v
alu
e o
f '0.8
5', s
et S
W1 to
'8' a
nd S
W2 to
'5'.
When s
witc
h S
W1 is
set to
0, th
is d
enote
s a
'1' b
efo
re, a
nd a
'0' a
fter, th
e
decim
al p
oin
t of th
e e
mis
siv
ity v
alu
e.
e.g
.fo
r an e
mis
siv
ity v
alu
e o
f '1.0
0', s
et S
W1 to
'0' a
nd S
W2 to
'0'.
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
8P
ag
e 8
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
9P
ag
e 9
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
3.3
Ad
jus
ting
the
av
era
ge
r 'Re
sp
on
se
Sp
ee
d'
The A
vera
ger tim
e fu
nctio
n is
adju
ste
d b
y th
e p
ote
ntio
mete
r P1.
(See F
ig. 6
, Page 6
).
The A
vera
ger 'R
esponse S
peed' c
an b
e s
et to
any v
alu
e b
etw
een 1
and 1
0
seconds (fo
r 0 to
95%
of fin
al re
adin
g).
1)
To in
cre
ase th
e 'R
esponse S
peed' (i.e
. make fa
ste
r), turn
the
pote
ntio
mete
r P1 a
ntic
lockw
ise. W
hen P
1 is
turn
ed fu
lly
antic
lockw
ise, th
e 'R
esponse S
peed' is
1 s
econd.
2)
To d
ecre
ase th
e 'R
esponse S
peed' (i.e
. make s
low
er), tu
rn th
e
pote
ntio
mete
r P1 c
lockw
ise. W
hen P
1 is
turn
ed fu
lly c
lockw
ise,
the 'R
esponse S
peed' is
10 s
econds.
3.4
No
te y
ou
r se
tting
s
Write
dow
n th
e s
ettin
gs fo
r 'Em
issiv
ity' a
nd 'R
esponse S
peed' in
the s
paces
pro
vid
ed b
elo
w.
Use th
is ta
ble
as a
quic
k re
fere
nce g
uid
e.
Each tim
e y
ou a
dju
st th
e s
ettin
gs, m
ake a
note
in th
e ta
ble
.
Seria
l Num
ber
Date
Em
issivity
Response S
peed
3.3
Ad
jus
ting
the
av
era
ge
r 'Re
sp
on
se
Sp
ee
d'
The A
vera
ger tim
e fu
nctio
n is
adju
ste
d b
y th
e p
ote
ntio
mete
r P1.
(See F
ig. 6
, Page 6
).
The A
vera
ger 'R
esponse S
peed' c
an b
e s
et to
any v
alu
e b
etw
een 1
and 1
0
seconds (fo
r 0 to
95%
of fin
al re
adin
g).
1)
To in
cre
ase th
e 'R
esponse S
peed' (i.e
. make fa
ste
r), turn
the
pote
ntio
mete
r P1 a
ntic
lockw
ise. W
hen P
1 is
turn
ed fu
lly
antic
lockw
ise, th
e 'R
esponse S
peed' is
1 s
econd.
2)
To d
ecre
ase th
e 'R
esponse S
peed' (i.e
. make s
low
er), tu
rn th
e
pote
ntio
mete
r P1 c
lockw
ise. W
hen P
1 is
turn
ed fu
lly c
lockw
ise,
the 'R
esponse S
peed' is
10 s
econds.
3.4
No
te y
ou
r se
tting
s
Write
dow
n th
e s
ettin
gs fo
r 'Em
issiv
ity' a
nd 'R
esponse S
peed' in
the s
paces
pro
vid
ed b
elo
w.
Use th
is ta
ble
as a
quic
k re
fere
nce g
uid
e.
Each tim
e y
ou a
dju
st th
e s
ettin
gs, m
ake a
note
in th
e ta
ble
.
Seria
l Num
ber
Date
Em
issivity
Response S
peed
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
10
Pa
ge
10
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
terFig
. 7 L
oca
tion
of th
e e
lectric
al c
on
ne
cto
rAD990187
Fast
Ele
ctric
al c
on
ne
cto
r
Fig
. 7 L
oca
tion
of th
e e
lectric
al c
on
ne
cto
rAD990187
Fast
Ele
ctric
al c
on
ne
cto
r
Fig
. 8 C
on
ne
ctin
g th
e p
lug
to th
e s
ocke
tS4970229
Ke
yw
ay
Lu
gs
Ma
rke
r Ma
rke
r
Lo
ckin
g S
lee
ve
Fig
. 8 C
on
ne
ctin
g th
e p
lug
to th
e s
ocke
tS4970229
Ke
yw
ay
Lu
gs
Ma
rke
r Ma
rke
r
Lo
ckin
g S
lee
ve
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
11
Pa
ge
11
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
Ele
ctric
al c
onnectio
n to
the th
erm
om
ete
r must b
e m
ade b
y e
ither:
•6-w
ay p
lug (L
AN
D P
art N
º 206.5
51)
•6-w
ay p
lug h
oused in
Back C
ap (L
AN
D P
art N
º 091.5
62)
•P
re-w
ired c
able
, 4m
long (L
AN
D P
art N
º 029.6
73)
To c
onnect th
e c
able
;
1)
Refe
r to F
ig. 8
. Alig
n th
e re
d m
ark
er n
ear th
e lu
gs o
f the p
re-w
ired
plu
g w
ith th
e re
d m
ark
er a
bove th
e k
eyw
ay in
the s
ocket o
n th
e
therm
om
ete
r.
2)
Push th
e p
lug in
to th
e s
ocket.
To d
isconnect th
e c
able
;
1)
Grip
the lo
ckin
g s
leeve s
ectio
n o
f the p
lug.
2)
Pull th
e p
lug o
utw
ard
s to
rele
ase th
e lo
ckin
g m
echanis
m a
nd
dis
connect th
e c
able
.
3.5
Ele
ctric
al c
on
ne
ctio
ns
The e
lectric
al c
onnectio
ns fo
r the th
erm
om
ete
r pow
er s
upply
and te
mpera
ture
outp
ut a
re m
ade v
ia th
e 6
-way s
ocket o
n th
e re
ar o
f the th
erm
om
ete
r.
See F
ig. 7
.
The c
able
connectio
ns a
re a
s fo
llow
s:
TH
ER
MO
ME
TE
R C
AB
LE
CO
NN
EC
TIO
NS
Therm
om
ete
r
Pin
No.
Functio
nC
able
Colo
ur
End C
ap
Pin
No.
1-
- -
2-
- -
3V
+, 4
to 2
0 m
A R
ed
5
4-
- -
5-
- -
6V
-, 4 to
20 m
A B
lack
6
Ele
ctric
al c
onnectio
n to
the th
erm
om
ete
r must b
e m
ade b
y e
ither:
•6-w
ay p
lug (L
AN
D P
art N
º 206.5
51)
•6-w
ay p
lug h
oused in
Back C
ap (L
AN
D P
art N
º 091.5
62)
•P
re-w
ired c
able
, 4m
long (L
AN
D P
art N
º 029.6
73)
To c
onnect th
e c
able
;
1)
Refe
r to F
ig. 8
. Alig
n th
e re
d m
ark
er n
ear th
e lu
gs o
f the p
re-w
ired
plu
g w
ith th
e re
d m
ark
er a
bove th
e k
eyw
ay in
the s
ocket o
n th
e
therm
om
ete
r.
2)
Push th
e p
lug in
to th
e s
ocket.
To d
isconnect th
e c
able
;
1)
Grip
the lo
ckin
g s
leeve s
ectio
n o
f the p
lug.
2)
Pull th
e p
lug o
utw
ard
s to
rele
ase th
e lo
ckin
g m
echanis
m a
nd
dis
connect th
e c
able
.
3.5
Ele
ctric
al c
on
ne
ctio
ns
The e
lectric
al c
onnectio
ns fo
r the th
erm
om
ete
r pow
er s
upply
and te
mpera
ture
outp
ut a
re m
ade v
ia th
e 6
-way s
ocket o
n th
e re
ar o
f the th
erm
om
ete
r.
See F
ig. 7
.
The c
able
connectio
ns a
re a
s fo
llow
s:
TH
ER
MO
ME
TE
R C
AB
LE
CO
NN
EC
TIO
NS
Therm
om
ete
r
Pin
No.
Functio
nC
able
Colo
ur
End C
ap
Pin
No.
1-
- -
2-
- -
3V
+, 4
to 2
0 m
A R
ed
5
4-
- -
5-
- -
6V
-, 4 to
20 m
A B
lack
6
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
12
Pa
ge
12
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
4.0
MO
UN
TIN
GS
AN
D A
CC
ES
SO
RIE
S
The F
LT
5A
therm
om
ete
r is c
om
patib
le w
ith a
ll Land S
yste
m 4
Mountin
gs
and A
ccessorie
s.
For th
e m
ajo
rity o
f float lin
e a
pplic
atio
ns, th
e fo
llow
ing p
ackage o
f
accessorie
s is
recom
mended:
Air P
urg
e:
Part N
º 091.5
61
Jacket:
Part N
º 091.5
60
Back C
ap:
Part N
º 091.5
62
For m
ore
info
rmatio
n o
n M
ountin
gs a
nd A
ccessorie
s, re
fer to
the
"Therm
om
ete
r Mountin
gs a
nd A
ccessorie
s In
sta
llatio
n G
uid
e".
Fig
. 9 R
eco
mm
en
de
d m
ou
ntin
g a
cce
sso
ries fo
r F
LT
5A
S4970223
Air P
urg
eT
herm
om
ete
r Ja
cke
tB
ack C
ap
4.0
MO
UN
TIN
GS
AN
D A
CC
ES
SO
RIE
S
The F
LT
5A
therm
om
ete
r is c
om
patib
le w
ith a
ll Land S
yste
m 4
Mountin
gs
and A
ccessorie
s.
For th
e m
ajo
rity o
f float lin
e a
pplic
atio
ns, th
e fo
llow
ing p
ackage o
f
accessorie
s is
recom
mended:
Air P
urg
e:
Part N
º 091.5
61
Jacket:
Part N
º 091.5
60
Back C
ap:
Part N
º 091.5
62
For m
ore
info
rmatio
n o
n M
ountin
gs a
nd A
ccessorie
s, re
fer to
the
"Therm
om
ete
r Mountin
gs a
nd A
ccessorie
s In
sta
llatio
n G
uid
e".
Fig
. 9 R
eco
mm
en
de
d m
ou
ntin
g a
cce
sso
ries fo
r F
LT
5A
S4970223
Air P
urg
eT
herm
om
ete
r Ja
cke
tB
ack C
ap
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
13
Pa
ge
13
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter
5.0
MA
INT
EN
AN
CE
Therm
om
ete
r main
tenance c
onsis
ts m
ain
ly o
f ensurin
g th
at th
e le
ns is
cle
an. If th
e le
ns b
ecom
es d
irty, c
lean it w
ith le
ns c
leanin
g flu
id a
nd a
soft
clo
th.
If it is th
e le
ns is
diffic
ult to
keep c
lean, it m
ay b
e n
ecessary
to u
se th
e
therm
om
ete
r in c
onju
nctio
n w
ith a
suita
ble
air p
urg
e (L
AN
D P
art N
º
091.5
61). C
onta
ct L
AN
D In
frare
d fo
r more
info
rmatio
n.
If the th
erm
om
ete
r is u
sed in
conju
nctio
n w
ith a
coolin
g ja
cket, e
nsure
that
the flo
w ra
te fo
r the c
oolin
g w
ate
r is 1
litre p
er m
inute
/ 0.0
35 c
u. ft p
er
min
ute
.
WA
RN
ING
Never 'o
ver-c
ool' th
e th
erm
om
ete
r as th
is m
ay re
sult in
condensatio
n e
ither o
n o
r insid
e th
e th
erm
om
ete
r.
If the th
erm
om
ete
r is u
sed in
conju
nctio
n w
ith a
n a
ir purg
e, c
heck th
at th
e
flow
rate
for th
e p
urg
e a
ir is 1
litre p
er s
econd / 2
cu. ft p
er m
inute
.
5.0
MA
INT
EN
AN
CE
Therm
om
ete
r main
tenance c
onsis
ts m
ain
ly o
f ensurin
g th
at th
e le
ns is
cle
an. If th
e le
ns b
ecom
es d
irty, c
lean it w
ith le
ns c
leanin
g flu
id a
nd a
soft
clo
th.
If it is th
e le
ns is
diffic
ult to
keep c
lean, it m
ay b
e n
ecessary
to u
se th
e
therm
om
ete
r in c
onju
nctio
n w
ith a
suita
ble
air p
urg
e (L
AN
D P
art N
º
091.5
61). C
onta
ct L
AN
D In
frare
d fo
r more
info
rmatio
n.
If the th
erm
om
ete
r is u
sed in
conju
nctio
n w
ith a
coolin
g ja
cket, e
nsure
that
the flo
w ra
te fo
r the c
oolin
g w
ate
r is 1
litre p
er m
inute
/ 0.0
35 c
u. ft p
er
min
ute
.
WA
RN
ING
Never 'o
ver-c
ool' th
e th
erm
om
ete
r as th
is m
ay re
sult in
condensatio
n e
ither o
n o
r insid
e th
e th
erm
om
ete
r.
If the th
erm
om
ete
r is u
sed in
conju
nctio
n w
ith a
n a
ir purg
e, c
heck th
at th
e
flow
rate
for th
e p
urg
e a
ir is 1
litre p
er s
econd / 2
cu. ft p
er m
inute
.
Us
er G
uid
eU
se
r Gu
ide
Pa
ge
14
Pa
ge
14
FL
T5
A T
he
rmo
me
ter
FL
T5
A T
he
rmo
me
ter