Pressure sensors and pressure switches - SIKA USA · 280 Our pressure sensors are high-precision,...

279

PRESSURE SENSORS AND PRESSURE SWITCHES

J Relative pressure

J Absolute pressure

J Difference pressure

J Level measurement

J Pressure switches

DS_Pressure_sensors_and_pressure_switches 05/2014

280

Our pressure sensors are high-precision, thermally stable instruments that are designed for the measurement of pressure in liquids and gases. The functionality and sensor style are determined by the specific operating conditions. Thanks to the ease at which these reliable sensors can be installed, commissioned and operated, they are suitable for use in a wide variety of applications.

The in-depth knowledge and extensive expertise of our product specialists in both the field-sales and internal-sales teams translates to top-quality sensor solutions that are perfectly tailored to your measurement task. Furthermore, we also have a global network of hand-picked representatives.

Areas of application • Mechanical engineering

• Machine tools

• Measuring / control engineering

• Hydraulics / pneumatics

• Refrigeration technology

• Food industry

• Medical technology

• Filter control

• Automation

High-precision pressure measurement with SIKA

-281-281

By constantly examining technologies that can be applied to pressure measurement, we are committed to the continued refinement and development of our products.

Over the following pages you can get an insight into our extensive sensor portfolio, ranging from vacuum and pressure switches for liquids and gases, OEM pressure sensors for relative pressure measurement, sensors with a ceramic element for gauge pressure and differential pressure measurement, or piezoresistive solutions for absolute pressure, differential pressure or level measurement. Added to this, a wide range of bespoke special versions are also in use the world over.

282

Series DSW

Advantages

• Easy installation and commissioning

• Excellent value for money

• Short delivery times

• Linearity < 0.5 % of full scale value

• 2-fold overpressure-safe

Type DSW

Functional description

With this new pressure sensor, SIKA is ushering in a new generation of pressure measuring instruments for general industrial applications.

The DSW not only impresses users with its compact design, it also offers excellent quality at a very low price.

And with a range of international approvals, the DSW can be used worldwide. The various pressure ranges and process connections that are needed for the individual operating conditions are readily available.

Areas of application

• Mechanical engineering

• Machine tools

• Measuring / control engineering

• Hydraulics / pneumatics

• Pumps / compressors

Relative pressure

283

Technical data and dimensions

Technical data

General

Accuracy, linearity, hysteresis < ±0.5 % full scale

Temperature influence ≤ 1.0 % typ., ≤ 2.5 % max.

Response time < 4 msec

Medium temperature 0...80 °C (others on request)

Ambient temperature 0...80 °C (others on request)

Overpressure safety 2-fold full scale value

Fitting position Any

Connection G¼ A, ¼ NPT

Degree of protection IP65

Electrical data

Output / supply 4...20 mA, 8...30 VDC; 2-wire

Connection Angle plug DIN EN 175301-803 A

Load 2-wire: ≤ (Ub-8 V) / 0.02 A

Material

Housing Stainless steel 1.4404

Diaphragm NBR (nitrile butadiene)

Connection Stainless steel 1.4404

≈48

≈6114

SW27

∅28,5

G¼A

284

Order code

Order example DSW 43 1 H 1H 025Diaphragm

NBR (nitrile butadiene) 43Output

4...20 mAOthers

1X

SealingBack sealed H

Process connectionG¼ A¼ NPT

1H2H

Measuring range [bar]0...10...1.60...2.50...40...6

025035045055065

0...100...160...250...400...60

075085095105115

0...1000...1600...2500...4000...600

125135145155165

Other specifications on request

285

Advantages

• Good value



• High temperature resistance

• No mechanical ageing or creepage

• No filling liquid necessary

Type DSK


A new type of ceramic sensor forms the core of these units.

It consists of a thin aluminium oxide diaphragm, on the rear side of which thick-film resistors are fitted in a Wheatstone bridge circuit.

For stabilisation purpose, this diaphragm is connected to a thickaluminium oxide baseplate and is mounted in an appropriate casing with threated connections.

If the diaphragm is subjected to pressure, it bends slightly and therby changing the resistance of the thick-film resistors.

A downstream electronic converts the resistance into an analog signal.


• Refrigeration technology


• Process engineering

• Hydraulics

Series DSK

286

Technical data

General

Accuracy, linearity, hysteresis < ±0.3 % full scale

Temperature influence < ±0.04 % full scale/K

Response time < 5 ms

Medium temperature -15...80 °C

Ambient temperature -15...80 °C

Overpressure safety 2-fold full scale value

Fitting position Any

Connection G¼ A, G½ A


Electrical data

Output / supply 4...20 mA, 11...33 VDC; 2-wire 0...5 V, 11...33 VDC; 3-wire0...10 V, 18...33 VDC; 3-wire

Connection Spark plug, DIN EN 175301-803 A

Load 2-wire: < (Ub-11 V) / 0.02 A 3-wire: > 10 kΩ / < 100 nF

Material

Housing Aluminium, anodised

Diaphragm FPM, NBR or EPDM



to 40 bar to 60 bar

G G¼ A G½ A G¼ A G½ A

l 16 20 12 16

s 3 5 10≥100 bar = 69≤60 bar = 59

Ø 4

0

G

10

SW27

l

s

≥ 100 bar ~ 140 (mounted)≤ 60 bar ~ 94 (mounted)

287

Order code

* Only possible with Viton seal

Order example DSK 33 0 A 1H 315 ÖFDiaphragm

FKM (fluro-elastomer)NBR (nitrile butadiene)EPDM (ethylene butadiene)

334353

Output4...20 mA0...10 V0...5 V

123

SealingFront sealedBack sealed

AH

Process connectionG¼ AG½ A

1H3H

Measuring range [bar]-1...0-1...0.6-1...1.5-1...3-1...5

315505515525535

-1...90...0.30...0.60...10...1.6

545005015025035

0...2.50...40...60...100...16

045055065075085

0...250...400...600...1000...160

095105115125135

0...2500...400*0...600

145155165

OptionsOil and grease-free ÖF

288

Series DSA / DSP

Advantages

• High linearity < 0.5 % (0.25 %) of full scale value

• Good reproducibility

• Inside, front or front-flush diaphragm

• 3-fold overpressure-safe (max. bursting pressure)

• Robust design

Relative and absolute pressure

Type DSA


Series DSA / DSP pressure sensors are used to measure relative pressure, overpressure or absolute pressure.

High-quality stainless steel and front-flush diaphragm also allow these sensors to be used in viscous or contaminated media.

The measuring element is a silicon chip, out of which a diaphragm has been etched. A Wheatstone bridge circuit is formed by the apllication of foreign ions to the silicon diaphragm.When the diaphragm bends, a resistance change results which is a measurement of the pressure. If the rear side of the chip is prestressed with a reference vaccum, absolute pressure can also be measured.

Since silicon chips are very sensitive, the entire chip is enclosed in a measurering element chamber. This is for reasons of media compatibility. The chamber is separated from the medium by a stainless steel diaphragm. The pressure is transmitted with neutral oil.



• Hydraulics

• Medical technology

289

Technical data

General

Accuracy, linearity, hysteresis ≤ ±0.25 % full scale

Temperature influence

0...70 °C (typical / max.)> 0.1...0.5 bar> 0.5...2 bar> 2...100 bar> 100...600 bar

≤ 1.0 % / 1.5 % full scale≤ 0.7 % / 1.0 % full scale≤ 0.7 % / 1.0 % full scale≤ 0.7 % / 1.0 % full scale

-25...100 °C (typical / max.)> 0.1...0.5 bar> 0.5...2 bar> 2...100 bar> 100...600 bar

≤ 2.0 % / 2.5 % full scale≤ 1.0 % / 1.5 % full scale≤ 1.0 % / 1.5 % full scale≤ 1.0 % / 1.5 % full scale

Response time < 1 ms / 10...90 % full scale

Medium temperature 0...70 °C-25...100 °C

Ambient temperature -40...100 °C

Overpressure safety 3-fold (min. 3 bar, max. burst pressure)

Connection G¼ A, G½ A, DIN and flange


Electrical data

Output / supply 4...20 mA, 11...33 VDC; 2-wire0...5 V, 15...33 VDC; 3-wire0...10 V, 15...33 VDC; 3-wire

Connection Angle plug, DIN EN 175301-803 A

Load 2-wire: (Ub-9 V) / 0.02 A3-wire: > 10 kΩ

Material


Diaphragm FKM (Fluro-elastomer)


Type DSA / DSP...A1H Type DSA / DSP...A3H


13,5

12

32,5

Ø27

Ø19

Ø24

Ø24

G 1

/2G

1/4

25

32,5 25

SW27

SW27

13,5

12

32,5

Ø27

Ø19

Ø24

Ø24

G 1

/2G

1/4

25

32,5 25

SW27

SW27

290

Order code

Order example DSA 24 1 A 1H 126Accuracy

0.25 % 24Output

4...20 mA0...10 V0...5 V

123

DiaphragmInsideFront (only G½ A possible)

AV


1H3H

Measuring range [bar]0...0.10...0.160...0.250...0.40...0.6

126136146156015

0...10...1.60...2.50...40...6

025035045055065

0...100...16

075085

291

Order code

* nur mit G½ A möglich

Order example DSP 34 1 A 1H 126Accuracy

0.25 % 34Output

4...20 mA0...10 V0...5 V

123

DiaphragmInsideFront

AV


1H3H


126136146156015

0...10...1.60...2.50...40...6

025035045055065

0...100...160...250...400...60

075085095105115

0...1000...1600...2500...4000...600

125135145155165

292

Series DDS

Advantages

• Good value


• High temperature resistance

• No mechanical ageing

• Very low temperature sensitivity

• Protected against polarity change and short-circuit strength

• One-sided overload max. 2-folded pressure range

Difference pressure

Type DDS


The structure of the difference pressure transmitter, series DDS, is based upon a new ceramic technology and is remarkable of a high temperature resistance and a special longterm stability.The thick-film resistors on the ceramic diaphragm form a Wheatstone bridge circuit.

The bridge circuit amplifier supplies the calibrated voltage or current signal as a standard signal.

The output signal is protected against polarity change and shortcircuit strength.


• Gaseous and liquid medium

• Heating technique

• Filter control


293

Technical data

General

Accuracy, linearity, hysteresis < 0.5 % full scale

Temperature influence < 0.06 % full scale

Response time < 5 msec

Medium temperature -15...80 °C

Overpressure safety Max. 2-folded pressure range

Connection NozzleScrewed pipe joint

Degree of protection IP65With cable socket IP67

Static pressure Max. 25 bar

Electrical data

Output / supply 4...20 mA, 11...33 VDC; 2-wire0...10 V, 18...33 VDC; 3-wire0...5 V, 11...33 VDC; 3-wire

Connection Angle plug, DIN EN 175301-803 APlug DIN EN 60130-91.5 m cable with PG screwing

Load 2-wire: (Ub-11 V) / 0.02 A3-wire: >10 kΩ

Material


Diaphragm FPM, EPDM, NBR, MVQ, CR



SteckdoseDIN EN 175301-803-A

Stai

nles

s st

eel ~

136

/ PVD

F ~1

30 (m

ount

ed)

294

Order code

Order example DDS 33 1 H1 1 100Sealing material

FPM (fluro-elastomer)EPDM (ethylene butadiene)MVQ (silicone polymer)NBR (nitrile butadiene)CR (chloropren-butadiene)

3353634373

Output4...20 mA0...10 V0...5 V

2-wire3-wire3-wire

123

Process connectionTube connectionScrewed pipe joint

CuZn, 6 mm1.4305, 6 mm1.4305, 8 mm

H1H3H4

Electr. connectionAngle plug, DIN EN 175301-803 ACable 1.5 m with PG screwingPlug DIN EN 60130-9

123


110120125130140

0...0.50...0.60...10...1.60...2.5

150160200216225

0...40...60...100...160...25

240260300316325

295

Series DSN / DSL

Advantages

• Linearity < 0.5 % (0.25 %) of full scale value


• Mechanically protected diaphragm

• 100 % leak-proof by virtue of being

• Fully welded

Level measurement

Type DSN


Series DSN / DSL pressure sensors are mainly used to measure liquid filling levels.

The measuring element is a silicon chip, out of wich a diaphragm has been etched. A Wheatsone bridge circuit is formed by application of foreign ions to the silicon diaphragm.

When the diaphragm bends, a resistance change results which is a measurement of the pressure. In the level probe design the rear side of the diaphragm is connected to the surrounding air pressure by a compensating line.

The units can also be used in troubled media.


• Wells

• Open containers

• Bodies of water

296


Technical data

General

Accuracy, linearity ≤ ±0.25 % full scale

Temperature influence

-5...50 °C (typical / max.)> 1...5 bar> 5...20 bar

≤ 1 % / 1.5 % full scale≤ 0,7 % / 1 % full scale

-5...80 °C (typical / max.)> 1...5 bar> 5...20 bar

≤ 2 % / 2.5 % full scale≤ 1 % / 1.5 % full scale

Response time < 1 msec / 10...90 % full scale

Medium temperature -5...50 °C (-5...80 °C on request)

Overpressure safety 3-fold full scale value (min. 3 bar)


Electrical data

Output / supply 4...20 mA, 9...33 VDC; 2-wire0...5 V, 12...30 VDC; 3-wire0...10 V, 12...30 VDC; 3-wire0...20 mA, 18...33 VDC; 3-wire

Connection Cable with air pressure compensating tube

Load 2-wire: < (Ub-11V) / 0,02 A 3-wire: < 250 Ω

Material


Diaphragm Viton (Standard), EPDM

Cabel PUR, FEP* or PE*

* On request

Ø6 P

E-/PU

R cable

Ø5 Teflon cable

DSN - without ballast weight 88DSL - with ballast weight 175

A [mm]

297

Order code

Order example DS N 23 000K 126 010Construction

ShortLong

NL

Accuracy0.25 % 24

Output4...20 mA0...10 V0...5 V

100K200K300K


126136146156015

0...10...1.60...2.50...40...6

025035045055065

0...100...16

075085

Cable length [m]P. e. 10 m cable PUR XXX

298

Series DSU / DSV

Advantages

• Pressure range 2...6000 mbar

• Reproducibility 5 %

• Temperature range -40...80 °C

• High operation safety because of robust mechanics

• Switching difference adjustable

• Changeable as contact

• Maximum overpressure 1.5-fold operating pressure

Vacuum and pressure switches for liquids and gases

Type DSU 620

Type DSV 625


Series DSU / DSV vacuum and pressure switches are used for surveilllance of liquids and gas in industrial applications.

The robust mechanics guarantees a highly operation safety, even in case of vibrations.

The units posses a highly long-term stability of the adjusted switch points.

They are especially remarkable of a standard program with many different versions and an ideal cost effectiveness.



• Automation

• Heating, climate, ventilation

299

Technical data

General

Smallest cutting-in pressure 2 mbar

Smallest switching difference 1 mbar

ReproducibilityDiaphragm NBR or siliconDiaphragm FPM and EPDM

5 %10 %

Medium temperatureDiaphragm NBRDiaphragm FPM und EPDMDiaphragm silicon

0...80 °C-10...80 °C-40...80 °C

Connection Nozzle 6 mm or female thread M5Thread: G⅛ A, G¼ A, M12 x 1

Degree of protection IP54 with covering hoodIP00 without covering hood

General technical data

Connections AMP plug 6.3 mm

Contact system Switch 250 DAC 1 A or 6 A

Cable screw Screwing PG 9


Type DSU 620 Type DSU 625 Type DSV 625

300

Order code

Order example DSU 620 1 1H 008

Diaphragm

NBRFPMEPDMMVQ

nitrile butadienefluro-elastomerethylene butadienesilicone polymer

1234

Connection

TubeFemale thread

1H2H

Measuring range Max. operation pressure Contact rating 250 V

2...8 mbar6...75 mbar12...80 mbar12...200 mbar25...220 mbar

50 mbar500 mbar500 mbar500 mbar500 mbar

1 A1 A6 A1 A6 A

008075080200220

Accessories

Covering hood made of plastic DSU 620625000

Order example DSU 625 1 1H 008

Diaphragm

NBRFPMEPDMMVQ


1234

Connection

G⅛ AM12 x 1G¼ AG¼ A

AluminiumAluminiumAluminiumBrass

1H2H3H4H

Measuring range pressure Max. operation pressure Contact rating 250 V

2...8 mbar6...75 mbar12...80 mbar12...200 mbar25...220 mbar80...2000 mbar120...2200 mbar1000...6000 mbar

50 mbar500 mbar500 mbar500 mbar500 mbar10000 mbar10000 mbar10000 mbar

1 A1 A6 A1 A6 A1 A6 A6 A

008075080200220020022060

Accessories


301

Order example DSV 625 1 1H 030

Membran

NBRFPMEPDMMVQ


1234

Connection

G⅛ AM12 x 1G¼ AG¼ A

AluminiumAluminiumAluminiumBrass

1H2H3H4H

Measuring range vacuum Max. operation pressure Contact rating 250 V

-4...-30 mbar-15...-80 mbar-30...-150 mbar-50...-600 mbar-100...-900 mbar

100 mbar500 mbar500 mbar10000 mbar10000 mbar

1 A6 A6 A6 A6 A

030080150600900

Accessories


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Pressure sensors and pressure switches - SIKA USA · 280 Our pressure sensors are high-precision,...

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