Pressure sensors
Pressure transmitters with casing (current output)
Series/Type:
Ordering code:
Date:
Version:
CAU-T series
2009-08-03
3
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AS SEN PD
CAU-T series
Pressure sensors
Pressure transmitters with casing (current output)
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Pressure sensors
Pressure transmitters with casing (current output)
CAU-T series
Description
The transmitters are based on piezoresistive silicon pressure sensors
from our own clean room.
The T-series electronic compensates nonlinearity and temperature
errors and supplies a precise calibrated output signal with a high
immunity against electromagnetic influences (EMI).
Features
Piezoresistive MEMS technology
Measured media (absolute pressure):
Air, non-aggressive gases (gas humidity 0 ... 85% r.h., without dew)
Unsuitable for substances which react with glass, silicon, gold,
aluminum, stainless steel, NBR, silicone glue or silicone gel.
Measured media (gauge pressure):
Air, non-aggressive gases (gas humidity 0 ... 100% r.h.)
and non-aggressive fluids.
Unsuitable for substances which react with glass, silicon, stainless
steel, NBR, silicone glue (p
r
≤
10 bar) or epoxy glue (p
r
> 10 bar).
2-wire current output proportional to pressure: 4 ... 20 mA
Reverse supply voltage protection
RoHS-compatible, halogen-free
Compact stainless steel casing (protection IP65) with G1/8" thread
Dimensional drawings
O-Ring seal (NBR) is
included in delivery.
Ø22
4
1
ISO228-G1/8
M12x1
3
2
Ø15
6.5
50
9.5
Venting hole
Ø2 mm
All dimensions in mm
A shielded 4-pole cable (2 m) with a modified (pressure equalization) female M12 locking plug is included in delivery.
AS SEN PD
Please read Cautions and warnings and
Important notes at the end of this document.
Page 2 of 8
2009-08-03
Pressure sensors
Pressure transmitters with casing (current output)
CAU-T series
Technical data
Absolute maximum ratings
Parameter
Temperature ranges
Storage temperature range
Operating temperature range
Compensated temperature range
Soldering temperature (cable)
Pressure ranges
Overpressure
Supply voltage /-current
Supply voltage
Current limit (p >> p
r
)
Output signal at sensor failure
Working resistance
DC break down voltage
Parameter
V
CC
I
CCMAX
I
ERR
R
L
V
is
Symbol
See connection diagram
8)
7)
Symbol
Conditions
Min.
Typ.
Max.
Unit
T
st
T
a
T
c
T
solder
1)
2)
3)
–30
–25
0
+85
+85
+70
+240
°
C
°
C
°
C
°
C
<5 s
(no reflow soldering)
p
ov
4), 5)
1.5
p
r
See connection diagram
6)
10
23
30
V
mA
3
1000
500
Min.
Typ.
Max.
mA
Ohm
V
Unit
Conditions
Output signal @ T
a
= 25 ° V
S
= 15 V, R
L
= 100
Ω
C,
Offset
I
CC0
Simple output AUA, AUR
Symmetrical output AUS
Signal span (Full Scale)
Nonlinearity
I
FS
L
10)
9)
9)
3.92
11.92
15.92
4.0
12.0
16.0
±0.1
4.08
12.08
16.08
±0.25
±0.5
mA
mA
mA
% FS
% FS
ms
Simple output
10), 11)
10), 11)
Symmetrical output
Response time
Supply voltage rejection
Parameter
t
10-90
SVR
Symbol
12)
10), 13)
±0.25
1
±0.01
Min.
Typ.
Max.
% FS/V
Unit
Conditions
Data in temperature range @ T
a
= –25 ... 85 ° V
S
= 15 V, R
L
= 100
Ω
C,
Temperature hysteresis
14)
±0.1
15)
15)
±0.5
% FS
Data in temperature range @ T
a
= 0 ... 70 ° V
S
= 15 V, R
L
= 100
Ω
C,
Temperature coefficient of offset
TCI
CC0
p
r
< 0.25 bar
p
r
≥
0.25 bar
Temperature coefficient of span
TCI
FS
16)
±0.015
±0.015
±0.015
±0.05
±0.03
±0.03
% FS/K
% FS/K
% FS/K
AS SEN PD
Please read Cautions and warnings and
Important notes at the end of this document.
Page 3 of 8
2009-08-03
Pressure sensors
Pressure transmitters with casing (current output)
CAU-T series
Characteristics
Simple output (AUA, AUR)
Symmetrical output (AUS)
I
cc0
+ I
FS
I
cc0
+ ½I
FS
I
cc0
I
cc0
0
p
r
I
cc0
- ½I
FS
-p
r
0
+p
r
Connection diagram and conditions
R
L
≤
(V
S
– 10 V) / 0.02 A
I+ (V
S
)
p
I
I-
R
L
V
cc
= V
I+
- V
I-
R
L
range depending on V
S
for proper operation
GND
Terminal assignment
Electrical connection
Positive supply voltage
Negative supply voltage
Symbol
I+ (V
cc
)
I–
Pin (color)
1 (brown)
3 (blue)
4
1
3
2
Venting hole
Ø2 mm
AS SEN PD
Please read Cautions and warnings and
Important notes at the end of this document.
Page 4 of 8
2009-08-03
AS SEN PD
Product type
Pressure
measurement
B58620H5820A035
B58620H5820A036
B58620H5820A037
B58620H5820A038
B58620H5820A039
B58621H5820A040
B58621H5820A041
B58621H5820A042
B58621H5820A043
B58621H5820A044
B58621H5820A045
B58621H5820A046
B58621H5820A047
B58623H5820A048
B58623H5820A049
B58623H5820A050
B58623H5820A051
AUA 25.00 F C4 TN H S2.0
AUR 0.100 F C4 TN H S2.0
AUR 0.250 F C4 TN H S2.0
AUR 0.400 F C4 TN H S2.0
AUR 1.000 F C4 TN H S2.0
AUR 2.500 F C4 TN H S2.0
AUR 6.000 F C4 TN H S2.0
AUR 10.00 F C4 TN H S2.0
AUR 25.00 F C4 TN H S2.0
AUS 0.100 F C4 TN H S2.0
AUS 0.250 F C4 TN H S2.0
AUS 0.400 F C4 TN H S2.0
AUS 1.000 F C4 TN H S2.0
AUA 10.00 F C4 TN H S2.0
AUA 6.000 F C4 TN H S2.0
6.000
10.00
25.00
0.100
0.250
0.400
1.000
2.500
6.000
10.00
25.00
0.100
0.250
0.400
1.000
Gauge, symmetrical
Gauge
AUA 2.500 F C4 TN H S2.0
2.500
Absolute
Ordering code
AUA 1.000 F C4 TN H S2.0
1.000
Rated pressure p
r
bar
Please read Cautions and warnings and
Important notes at the end of this document.
Other rated pressures upon request.
Rated pressures and ordering codes
Pressure sensors
Pressure transmitters with casing (current output)
Page 5 of 8
CAU-T series
2009-08-03
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