fdum200db Sensortechnics GmbH, fdum200db Datasheet - Page 2

• Manufacturer Part Number: fdum200db
• Description: Mass Flow Sensors Gases
• Manufacturer: Sensortechnics GmbH

FLOW SENSOR CHARACTERISTICS
(V
PERFORMANCE CHARACTERISTICS
(V
Notes:
2
3
4
5
6
7
8
E / 11720 / A
R
R
S
S
R
C
Output voltage is ratiometric to supply voltage
Z
e T
A 5 micron filter is recommended for all devices.
Shift is relative to 25 °C.
Assumes low TCR bridge resistance used (pins 2 and 8).
Requires recommended Rc value of 1K Ohm is used (pins 3 to 7) and typ. heater control circuit. Maximum current Rh.
Maximum allowable rate of flow change to prevent damage.
Temperature shifts in differential pressure devices are mostly due to the density change of the gas over temperature.
S
S
e
e
t a
e
e
e
o
m
= 10 ±0.01 V, T
o r
= 10 ±0.01 V, T
p
s n
s n
s
m
o i
p
e
p
m
r o
r o
m
o
F
o
a
F
e
s n
s f f
a t
o
D
a r
D
e
e r
c
P
n
r t
U
l i b
U
t e
u t
r u
e
a
c i
s
m
M
H
e r
t r
y t i
e r
i t
s i
y t i
o
0
2
m
a t
t n
d
n
0
0
f e
a
e
e
e
2
. o
0
c n
n
e f
r r
D
D
p
d
e
r o
c
A
e r
B
B
A
h
s t
= 25°C)
p (
2
= 25°C)
s y
s s
5
n i
e t
u
e r
e r
1
C
-
s
O
S
h
s i
p
F
p
s f f
(
±
a
n i
u f
o l
a
c (
2
a r
t e
n
0
, 2
w
l l
o
c
0
m
s
e t
p
a r
s
c
b
n i
c c
l a
i r
n i
n
2 -
2 -
2
1
g
t s
e
) e
m
5
5
5
) d
e
-
c i
o t
o t
o t
p
s
n i
8
2
8
5
5
5
) 8
P
±
°
°
°
e r
a r
C
C
C
2
3
6
s
n
"
H
s
g
u
2
e
O
F
F
F
F
F
F
e r
D
D
D
D
D
D
U
U
U
U
U
U
M
H
M
H
M
H
0
0
0
2
2
2
M
0
0
0
0
0
0
2
2
2
a
0
0
0
D
D
D
x
D
D
D
f .
B
B
B
Mass flow sensors for gases
B
B
B
5
5
o l
0 .
0 .
w
s / l
s / l
M
c
1 -
e
e
1
h
i
c
c
5 .
. n
5
a
n
g
www.sensortechnics.com
e
4
±
T
±
±
3 -
±
3 -
1
2
0
1
2
1
y
0
7 .
0
0 .
5
3 .
0
0 .
0 .
0 .
. p
1 .
5
5
5
8
0
7
8
3
7
O
8
FDU Series
7
@
u
±
M
m
m
p t
0
2
0
3
1
2
a
i r t
3 .
2 .
6 .
0 .
V
V
5
5
t u
. x
m
5
@
@
v
p
l o
2
2
i o
%
%
%
0
a t
"
t n
0
H
%
%
%
k
g
U
e r
e r
e r
2
m
m
O
m
s
m
e
F
F
F
p
O
n
c c
a
a
a
h
i s
S
S
S
V
V
A
s
d
d
d
t i
m
O
O
O
m
n i
n i
n i
g
g
g
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