Pressure sensors - Hydrotechnik

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1

For over 40 years, Hydrotechnik is setting milestones for hydraulic measuring
Pressure sensors
The present state-of-the-art industrial technology for pressure measuring is subject to continuous
change. The various needs of the users can no longer be met with standard products alone.
Nowadays, customers specify their particular requirements oriented on special needs.
With this in mind, the new business unit “solutions for pressure sensors” was created, providing
users with pressure sensors for all their applications.
Based on decades of experience in the area of hydraulic measuring technology we have created, in
cooperation with a renowned manufacturer of pressure cells, an efficient production unit for pressure
sensors to satisfy both high volume demand and small quantities for specialist use.
Using the pressure measuring cells-technology proven many million times in the automotive sector we
achieved a considerable know-how which is now available for use in any industry. It allows to satisfy
almost all special requirements fast and at low costs.
Description
Principle
The pressure sensors were conceived to meet the
requirements of most applications in the sector
of industrial measuring technology.
They excel in high precision, robust and compact
design as well as flexibility to adapt to varying
measuring tasks.
An almost limitless combination of the
mechanical and electrical components offers an
impressive width of pressure sensor variations.
Plug
Lid
Filter module
EMV cap
Circuit board
Housing
Pressure port
Technology
The physical characteristics of a measuring cell are defined by membrane thickness, membrane
diameter, layout and adapted full bridge. The stainless steel membrane made of CrNi-steel is absolutely
vacuum-tight, extremely burst-proof and may be used anywhere in hydraulics, pneumatics,
environmental technology, process technology, semi conductors and automotive technology. The simple
and robust construction of the measuring cell, using highly integrated amplifications (ASIC) with
standard-CMOS-technology, the design – measuring cell, connecting frame, circuit board with ASIC and
housing with plug – was optimised with regard to shock and sealing. The ASIC-chip has been designed
for various construction parameters. Thus, in an alignment process the following parameters may be
fully automatically set: offset, offset-temperature range, span, temperature range and linearity.
The result of the combination of measuring cell and signal processing results in a low error tolerance
throughout a high working temperature range.
Modern pressure sensors, subject to automatic balancing, specify their total error rate only via the
operational temperature range, as opposed to earlier individual error specifications. This led to users
considering only the total error for the complete sensoring system.
2

Pressure sensors
Common technical data
Reference of the specified data 23 °C ±3 K
Measuring method:
Measuring signal output:
Input voltage:
High voltage protection:
Piezo resistive
(A poly cristalline silicon film is deposited on a stainless steel diaphragm)
Volt or mA (see order key)
10 to 30 VDC (for output signal 0 to 20 mA /4 to 20 mA)
12 to 32 VDC (for output signal 0 to 10 VDC)
max. 32 VDC
Tolerance: ± 0,5 % of final value (at 23 °C ± 3K)
(Non-linearity, hysteresis) ± 1,0 % of final value in temperature range -15 °C to +85 °C
± 2,5 % of final value in temperature range -40 °C to +100 °C
Reproducibility: ± 0,1 % of final value
Mechanical overload:
1,5 times of nominal pressure
Bursting pressure:
3 of final value
Number of load cycles: > 10 x 10 7
Working temperature range:
-40 °C to +100 °C (temporarly up to +120 °C)
Medium temperature: -40 °C to +120 °C
Storage temperature range: -40 °C to +100 °C
Frequency response (amplifier):
Response time:
from DC to >1 kHz
≥ 1 ms
Isolation resistance:
min. 100 MOhm
Vibration resistance:
20 g (1mm vibration 10 to 2000 Hz)
Shock resistance:
50 g (6 ms half sinus)
Long term stability:
< ± 0,1 % final value/year
Protection (EN 60529/IEC 529):
IP 40 to IP 69K (by specification)
CE-conformity: interference emission acc. to EN 50081-2,
interference resistance acc. to EN 50082-2
Measuring connection (electrical): device plug as specified
Pressure connection G (mechanical): ISO 228-G1/4 A (see order key)
Material: 1.4542
Weight:
see order key
Technical modifications reserved
3

Pressure sensors
Features:
Relative pressure sensors
type R- ...
Absolute pressure sensors from
1 to 10 bar on request
Mechanical connection:
ISO 228-G1/4 A, starting torque
40+5 Nm
1
) Profile seal acc. to DIN 3869
FKM (Viton)
2
) integrated throttle insert
ø 0,6 for measuring ranges
≥ 0 to 60 bar
AMP-round plug 3poles,
acc. to DIN 72585, IP 69 K
Weight approx. 99 g
Type R-G6
4poles round plug
M 12 x 1
IP 67
Weight approx. 87 g
Type R-I5
Plug connections:
2-wire-technique: 4 to 20 mA
Pin 1 = -U b
/ I- / (out)/black
Pin 3 = +U b
/ green
3-wire-technique: 0 to 20 mA
and all voltage outputs
Pin 1 = signal+ (out) / red
Pin 2 = -U b
/ signal- / GND /
black
Pin 3 = +U b
/ green
3-poles
male plug
ca.77,5
12
14,5
ca.42
2
ISO 228-G1/4 A
2
ø 26,6
ø 23,6
sensor/pressure
reich/range:
ngssignal/output signal
ungsspannung/voltage
ll-Nr./part-no.: 34
-Nr./serial-no.:
ø18,9
SW22
1) profile washer
2) throttle inset
4-poles
male plug
11,5
10
12
ca. 32
2 9
ISO 228-G1/4 A
M12x1
sensor/pressure
reich/range:
ngssignal/output signal
ungsspannung/voltage
ll-Nr./part-no.: 34
-Nr./serial-no.:
ø 18,9
4 3
ø 22
SW22
1) profile washer
2) throttle inset
3
1
1
2
Order key
3403 - XX - XX . XX
Pressure ranges:
XX
0 to 6 bar = 28
0 to 10 bar = 26
0 to 25 bar = 40
0 to 60 bar = 21
0 to 100 bar = 16
0 to 250 bar = 17
0 to 400 bar = 15
0 to 600 bar = 18
0 to 1000 bar = 29
4

Pressure sensors
4poles plug acc. to
DIN EN 175301-803, design A
IP 65
Weight approx. 118 g
4poles plug acc. to
DIN EN 175301-803, design C
IP 65
Weight approx. 107 g
Open cable end
1,5 metres long
Weight approx.
106 g
Type R-D1 Type R-D5 Type R-D6
45max.
4-poles
ca. 28
female plug
male plug
male plug
SW 33.5
40max.
27,5
ca.
gasket
ø 22
10,3
12
2 9 ca.38
sensor/pressure
reich/range:
ngssignal/output signal
ungsspannung/voltage
ll-Nr./part-no.: 34
-Nr./serial-no.:
contoured seal
ø22
SW22
1) profile washer
12
2 9
ca. 36
sensor/pressure
reich/range:
ngssignal/output signal
ungsspannung/voltage
ll-Nr./part-no.: 34
-Nr./serial-no.:
ø 22
SW22
1) profile washer
9
ca. 36
sensor/pressure
reich/range:
ngssignal/output signal
ungsspannung/voltage
ll-Nr./part-no.: 34
-Nr./serial-no.:
ca. 35
white
SW22
green
black
red
ISO 228-G1/4 A
ø18,9
2) throttle inset
ISO 228-G1/4 A
2) throttle inset
12
2
1) profile washer
ø 18,9
ISO 228-G1/4 A
2) throttle inset
1
3
2
2
3
1
ø 18,9
Signal output:
XX
0 to 5 V = 38 (3-wire)
0 to 10 V = 39 (3-wire)
0 to 20 mA = 33 (3-wire)
Sample order:
Data of required sensor
Pressure range 0 to 600 bar, plug type R-D1,
Signal 4 to 20 mA.
The appropriate order number = 3403-18-D1.37
4 to 20 mA = 37 (2-wire)
Types:
XX
Type R-G6 = G6
Type R-I 5 = I 5
Type R-D1 = D1
Type R-D5 = D5
Type R-D6 = D6
5

From standard to
Pressure sensors
custom-made pressure sensor
For every application we offer an optimal solution and respond to
the requests and wishes of our customers:
Choice of different connections,
direct cable terminal/connections, etc.
Choice of signal output
voltage or current
Pressure port connection
ISO 228-G 1/4 A – M 14x1,5 – 1/4 NPT
and high pressure connection
(high pressure cone and thread connections)
Choice of the pressure
ranges: -1 to 2500 bar
Whatever is possible,
will be realised for the user
6

Applications
Pressure sensors
Mechanical engineering Mobile hydraulics Process control
Construction machines Machine tools Test technology
Communal vehicles Industrial hydraulics Quality control
Pneumatics Industrial robots Service
Our quality standard
Test and calibration technology
Kalibrierdienst
K - 05101 - 03
DIN EN ISO 9001
12 100 7292 DIN EN 45001
The Hydrotechnik Quality management
system has been certified according to
DIN EN ISO 9001 since 1994.
Hydrotechnik is member of the German
Calibration Service (DKD) since 1986,
accredited for pressure and volume flow rate
in liquids.
State of the art in sensor technology for the benefits of the user
Hydrotechnik offers you:
❏
❏
❏
❏
❏
Realisation of your requirements
and their implementation
Technical advice in your location
Flexible and speedy sampling
Quality products
Optimal value for your money
7

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p1 120.4
( bar)
p2 210.6
( bar)
p3 360.2
( bar)
Q1 160.7
(l/min)
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HYDROTECHNIK GmbH
Holzheimer Strasse 94 - 96
D-65549 Limburg
Tel.: 06431 - 4004 0 • Fax 4 53 08
www. hydrotechnik.com
info@hydrotechnik.com
8
07/2007 - 8898-01-00.56