EK21HRA [IVO]
Ceramic Sensor, Absolute, Round;
| 型号： | EK21HRA |
| 厂家： | 
BAUMER IVO GMBH & CO. KG |
| 描述： | Ceramic Sensor, Absolute, Round |
| 文件： | 总4页 (文件大小：220K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EK-ED-EP-ER-ET-EC-EL Pressure Sensors
Measurement of gauge or absolute pressure
From 250 mbar to 600 bar full scale
Corrosion resistant
Excellent long term stability
Low cost - excellent performances / price ratio
TheTRANSBAR® technology is a spin off of the «thick film technology» used worldwide
to produce so called «hybrid electronic circuits».
Patterns of conductive and resistive pasts, or «inks», are deposited on a substrate,
generally ceramics, using screen printing techniques.
The uniqueness of the «TRANSBAR®» technology is to use the piezoresistive charac-
teristics of specific resistive inks, i.e. the fact that their resistance values vary when
submitted to dimensional changes.
These resistors, called strain gauges, judiciously positionned on the deformable
structure (diaphragm), are connected together in a four arms Wheatstone bridge
configuration.
A regulated voltage source is connected to one diagonal of the bridge.
A pressure applied to the diaphragm will deform it and therefore unbalance the bridge,
resulting in an electrical signal, on the other diagonal of the bridge, proportional to
the applied pressure.
This low level signal, some mV., will have to be amplified to a suitable level to be connected to a display, controller, recorder, PLC or whatever required peripheric equipment.
Constructed entirely of ceramics (Al203, 96 %), comparable to a cristal, these sensors have a quasi perfect mechanical behaviour : good linearity, low hysteresis. They can
withstand tens of millions of cycles. Chemically inert, ceramics accepts most industrial media, even aggressive ones.
Their simple geometry allows their easy integration in OEM’s mechanical structures.
The field of their applications is very wide, from basic research to general industry.
Models
EK (CS) : Open bridge, unbalanced.
Bridge impedance :15 kΩ +30%
ED (CA) : Closed bridge, balanced.
Electrical connections
1
+ Supply
The integrated bridge balancing circuitry eliminates
possible induced parasites due to connections to an
external circuit.
2
5
EK11 / 21
(CS1 /2)
+ Signal
EP (CP) : Closed bridge, balanced .
Interchangeability :
Output signal to 1%
4
3
- Signal
- Supply
1
+ Supply
ED-EP 11 / 21
(CA - CP 1 / 2)
ER (CTi) : Closed bridge, balanced .
Thermal drifts compensation :
zero and output signal.
+ Signal
5
ER-ET 11 / 21
(CTi - CT 1 / 2)
4
3
- Supply
ET (CT) : Closed bridge, balanced .
Thermal drifts compensation :
zero and output signal .
- Signal
1
3
+ Supply
Output signal to 1%
Interchangeability .
ED71 (CA7)
+ Signal
4
2
- Signal
- Supply
Other models, EC-EL with high level output signal, 0-10 V, or 0-5 V, or 4-20 mA:
consult us.
Sectionned wiew
Soldered contacts
Screen printed gauges
Ceramic diaphragm
www.baumer.com/process
Data sheet A12.20
Page 1
Design and specifications subject to change without notice
Options
Particular technical specifications
Zitex humidity protector (gauge pressure models only). Code 0811
Polyester flat cable, 5 wires, 50 mm soldered on sensors serie 1 or 2. Code 2251
Kapton flat cable, 4 wires, 25 mm. Standard for ED71 (soldered). Code 2252
Flexible single wires, soldered on sensor, length to be specified. Code 2253
All other options : please consult us.
Pressure sensors, high level output signal models EC - EL
Above described pressure sensors address OEM users, taking in charge the electronic conditioning of the sensor (excitation, signal amplification)
depending upon their actual needs.
For those who would not have such capacities, or for whom, the annual requirement would not allow a satisfying playback on the cost of development
of such electronic circuitry, BAꢀMER can supply sensors associated with p.c.boards usually fitted in transmitters, delivering a normalised high level
output signal for the rated range : 4-20 mA, 1-5 V, 0-10V, directly usable by peripheric equipments as : displays, recorders, controllers, P.L.C.s, etc.
Ordering Details - EK-ED-EP-ER-ET
Exxxxxx
Serie 1 - Ø 42 mm
Model
Pressure sensors
1´ digit
Range bar
0.2
code
E
RB
RC
RD
RE
RG
–
–
R
R
R
R
R
0.5
0.75
1.5
2
A
A
A
Type
Serie 1 - Ø 42 mm
2´...4´ digit
K11
D11
P11
R11
T11
Serie 2 - Ø 34 mm
Range bar
code
MB
MC
LC
LE
LI
LL
LR
HR
ER
EZ
EP
0.6
1
A
A
A
A
A
A
A
A
A
A
A
R
R
R
R
R
R
R
R
–
Serie 2 - Ø 34 mm
2
K21
D21
P21
R21
T21
5
10
20
50
100
200
350
400
–
D71
Serie 7 - Ø 18 mm
–
Serie 7 - Ø 18 mm
Pressure range
See codes in tables
5´...6´ digit
7´ digit
Range bar
code
xx
FA
FB
DB
FE
DE
DG
CG
DL
CL
CQ
CR
CU
CZ
2
4
A
A
A
A
A
A
A
A
A
A
A
A
A
R
R
R
R
R
R
R
R
R
R
R
R
R
Pressure type
Absolute
Gauge
6
A
10
R
16
25
40
60
100
160
250
400
600
Be careful :
Max. operating temperature range is limited
to 70°C for absolute pressure versions.
www.baumer.com/process
Data sheet A12.20
Page 2
Design and specifications subject to change without notice
Technical Data (20°C)
SERIE 1 - Ø 42 mm - Low pressure ranges
MODELS SPECIFICATIONS EK11 - ED11 - EP11 - ER11 - ET11
RANGE IDENTIFICATION :
RB (1)
RC (1)
RD
RE
RG
RATED RANGE (R.R.) :
(bar)
0.2
2.9
0.22
≥ 0.4
0.5
7.25
0.55
≥ 1
0.75
10.9
0.83
≥ 1.5
1.5
21.75
1.65
≥ 3
2
29
2.2
≥ 4
(≅ psi)
(bar)
(bar)
Max. admissible pressure, without derating of specs :
Burst pressure :
OUTPUT SIGNAL AT RATED RANGE: (2)
EK11
(mV)
( 30%)
ED11
EP11
ER11
ET11
25
22
18
20
15
50
45
35
40
30
45
42
35
38
30
65
60
45
55
40
55
50
40
45
30
( 30%)
( 1%)
( 30%)
( 1%)
GLOBAL ERROR (max.) :
(non linearity + hysteresis + repeatability)
( % R.R.)
1
0.4
0.4
0.4
0.4
DIMENSIONS
See fig. 1
(1) Gauge pressure only.
SPECIFICATIONS : ALL MODELS
EK11
ED11
EP11
ER11
ET11
EXCITATION VOLTAGE :
Nominal :
Maximum :
(Volt)
(Volt)
10
30
10
30
10
30
10 (3)
10 (3)
10 (3)
10 (3)
BRIDGE IMPEDANCE
Input :
Ouput :
(kOhm)
30% (kOhm)
15 30%
15
≥ 6
15
≥ 6
10
≥ 6
15
≥ 6
10
TEMPERATURE LIMITS :
Operating :
Compensated :
(°C)
(°C)
-55 to +125 -55 to +125 -55 to +125 -55 to +125 -55 to +125
n.a. n.a. n.a. -10 to +55 -10 to +55
THERMAL DRIFTS : (2)
Zero :
Output signal :
(µV / °C)
(% / °C)
≤ 30
-0.04
≤ 30
-0.04
≤
30
-0.04
≤
0.2 (non cumulative)
≤
6
0.01
≤
6
0.01
≤
≤
LONGTERM ZERO DRIFT :
(% R.R. / year)
INITIAL ZERO UNBALANCE (2)
(mV)
≤
5ꢀꢀ
≤
2
≤
2
≤
1
≤
1
(2) Under nominal excitation voltage : 1ꢀ V
(3) 5 V. optional.
SERIE 2 - Ø 34 mm - Low, medium and high pressure ranges
MODELS SPECIFICATIONS EK21 - ED21 - EP21 - ER21 - ET21
RANGE IDENTIFICATION :
RATED RANGE : (R.R.) :
MB MC LC
0.6
9
0.66 1.1 2.2
≥1.8 ≥3 ≥6
LE
5
LI
LL
20
LR HR ER* EZ* EP*
50 100 200 350 400
(bar)
(≅ psi)
(bar)
1
15
2
30
10
75 150 300 750 1500 3000 5250 6000
5.5 11 22 55 110 220 385 440
≥12 ≥25 ≥50 125 250 450 550 600
Max. admissible pressure, without derating of specs :
Burst pressure :
(bar)
≥
≥
≥
≥
≥
OUTPUT SIGNAL AT RATED RANGE : (2)
(mV)
( 30%)
( 30%)
( 1%)
( 30%)
( 1%)
EK21
ED21
EP21
ER21
ET21
27
25
20
24
15
35
33
26
27
20
55
50
40
37
30
65
60
50
48
40
70
65
50
52
40
70
65
50
52
40
70
65
50
52
40
70
65
50
52
40
65
60
50
48
40
45
40
35
36
20
35
30
20
24
15
GLOBAL ERROR (max.)
(non linearity + hysteresis + repeatability)
( % R.R.)
0.8 0.4 0.4
0.4 0.3
0.3
0.2 0.2
0.2 0.4
0.4
DIMENSIONS
See fig. 2
Models with* : absolute pressure only.
SPECIFICATIONS : ALL MODELS
EK21
ED21
EP21
ER21
ET21
EXCITATION VOLTAGE :
Nominal :
Maximum :
(Volt)
(Volt)
10
30
10
30
10
30
10 (3)
10 (3)
10 (3)
10 (3)
BRIDGE IMPEDANCE :
Input :
Ouput :
(kOhm)
30% (kOhm)
15 30%
15
≥ 6
15
≥ 6
10
≥ 6
15
≥ 6
10
TEMPERATURE LIMITS :
Operating :
Compensated :
(°C)
(°C)
-55 to +125 -55 to +125 -55 to +125 -55 to +125 -55 to +125
n.a. n.a. n.a. -10 to +55 -10 to +55
THERMAL DRIFTS : (2)
Zero :
Ouput signal :
(µV / °C)
(% / °C)
≤
30
-0.04
≤
30
-0.04
≤
30
-0.04
≤
0.2 (non cumulative)
≤
≤
6
0.01
≤
≤
6
0.01
≤
≤
LONGTERM ZERO DRIFT :
(% R.R. / year)
(mV)
INITIAL BRIDGE UNBALANCE : (2)
≤
500
≤
2
≤
2
1
1
(2) ꢀnder nominal excitation voltage 10 V
www.baumer.com/process
(3) 5 V optional.
Data sheet A12.20
Page 3
Design and specifications subject to change without notice
Technical Data (20°C)
SERIE 7 - Ø 18 mm - Low, medium and high pressure ranges
SPECIFICATIONS
RANGE IDENTIFICATION :
RATED RANGE : (R.R.)
ED71
FA FB DB FE DE DG CG DL CL CQ CR Cꢀ CZ
(bar)
(≅ psi)
(bar)
2
4
6
10 16 25 40 60 100 160 250 400 600
30 60 90 150 250 350 600 900 500 2500 4000 6000
12 20 32 50 80 120 200 320 500 800 800
12 18 30 48 75 120 180 300 480 600 1000
1
-
Max. admissible pressure, without derating of specs :
Burst pressure : ≥
OUTPUT SIGNAL AT R.R. : (1)
5
7
8
(bar)
-
30%
(mV)
20 20 20 20 22 22 25 22 25 27 25 30 25
GLOBAL ERROR :
(non linearity + hysteresis + repeatability)
(% R.R.)
≤ 0.4
≤ 0.6
EXCITATION
Nominal :
Maximum :
(Volt)
(Volt)
10
20
BRIDGE IMPEDANCE
Input :
Output :
(kOhm)
(kOhm)
Closed bridge : ≥ 6
15 30%
TEMPERATURE LIMITS
Operating :
Compensated :
(°C)
(°C)
-55 to +125
n.a.
THERMAL DRIFTS
Zero :
Output signal :
(µV / °C)
(% / °C)
≤
30
0.01
LONGTERM ZERO DRIFT :
INITIAL ZERO UNBALANCE (1)
DIMENSIONS
(% R.R. / year)
(mV)
≤ 0.2 (non cumulative)
≤
See fig. 3
2
(1) ꢀnder nominal excitation voltage : 10 V
Dimensions
Tightening force loading
area (ø 40)
e
Figure 1
Range identification
Model
identification
e : mm
1 ꢀ
RB
RC
RD
RE
RG
5.30
5.35
5.40
5.45
5.55
Connecting pads
2.54 mm pitch
Option : ZITEX humidity protector
(gauge pressure measurement only)
Ventilation hole (gauge
pressure measurement)
Series 1
e
Tightening force
loading area (ø 30)
Figure 2
Range identification
Model
Identification
e : mm
1 ꢀ
MB
6.30
6.35
6.45
6.625
6.85
7.30
8.05
8.55
Connecting pads
2.54 mm pitch
MC LC
LE
LI
LL
LR HR ER
EZ
Option : ZITEX humidity
protector (gauge pressure
measurement only)
Ventilation hole (gauge
pressure measurement)
EP
Series 2
Figure 3
Model
Identification
e : mm
1 ꢀ
Tightening force
loading area (ø 15)
FA
FB DB
FE DE
DG CG
DL CL
CQ
6.25
6.30
6.45
6.55
6.85
7.05
7.30
7.65
7.82
Connec
2.54 mm
Option : ZITEX humidity protector
(gauge pressure measurement only)
CR
Ventilation hole (gauge
pressure measurement)
Series 7
Cꢀ
CZ
www.baumer.com/process
Design and specifications subject to change without notice
Data sheet A12.20
Page 4
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