DPS40

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WIKA · Pressure measurement · Family DELTA-switch

Differential pressure switch

Name: Differential pressure switch
Brand: WIKA

Differential pressure switch for monitoring and control of filters, compressors and pumps in boilers, pressure vessels, water treatment, heating, and fire-extinguishing systems.

Range

-12.5…1000 kPa

Output

Micro switch

Accuracy

≤ 1.6 % of measuring span

Protection

IP65

RoHSEACCEEx UkraineREACHGas II 2G Ex ia IIC T4/T5/T6 GbDust II 2D Ex ia IIIB T135°C DbIECEx Hazardous areasEx Ukraine Hazardous areasDust II 2D Ex ia IIIB T135℃ DbATEXIECEx

Price

On request

Depends on configuration

Request a quote

+38 (067) 285-77-70·info@avigan.com.uaViberTelegram

Description

The differential pressure gauges of the DELTA-line product family are primarily used for the monitoring and control of low differential pressures where there are high requirements in terms of one-sided overload and static pressure.

Typical markets for these products are the process heating technology, the heating, ventilation and air-conditioning industries, the water/wastewater industry, and machine building and plant construction. For these, the main function of the measuring instruments is the monitoring and control of filters, compressors and pumps.

Wherever circuits need to be switched safely dependent on a defined differential pressure, the DELTA-switch finds its use. As the pressure passes above or below a defined set point, the switching operation is triggered.

Special features

With one or two adjustable micro switches
Shatterproof window and robust aluminium or stainless steel measuring chamber for increased requirements
Optionally with approvals for hazardous areas
High ingress protection, IP65, for outdoor use and processes with high condensation
Low measuring range from 0 ... 250 mbar

Identification

Model	DPS40
Product family	DELTA-switch
Subcategory	Differential pressure switch

Measuring range

Pressure ranges

0…250 mbar · 0…400 mbar · 0…600 mbar · 0…1000 mbar · 0…0.25 bar · 0…0.4 bar · 0…0.6 bar · 0…1 bar · 0…1.6 bar · 0…2.5 bar · 0…4 bar · 0…6 bar · 0…10 bar · -12.5…12.5 kPa · 0…25 kPa · 0…40 kPa · 0…60 kPa · 0…100 kPa · 0…160 kPa · 0…250 kPa · 0…400 kPa · 0…600 kPa · 0…1000 kPa · 0…0.025 MPa · 0…0.04 MPa · 0…0.06 MPa · 0…0.1 MPa · 0…0.16 MPa · 0…0.25 MPa · 0…0.4 MPa · 0…0.6 MPa · 0…1 MPa

Accuracy

Accuracy class	≤ 1.6 % of measuring span
Accuracy standard	EN 837

Process conditions

Process connection

2 x G ¼, female thread, centre distance 26 mm2 x G ¼ B, male thread, centre distance 26 mm2 x compression fitting with ferrule for pipe ∅ 6 mm2 x compression fitting with ferrule for pipe ∅ 8 mm2 x compression fitting with ferrule for pipe ∅ 10 mmG ¼ female thread, centre distance 26 mmG ¼ B male thread, centre distance 26 mmCompression fitting with ferrule for pipe ∅ 6 mmCompression fitting with ferrule for pipe ∅ 8 mmCompression fitting with ferrule for pipe ∅ 10 mmG ¼ female thread

Process temperature

−10…+90 °C

Electrical characteristics

Output signal	Micro switch
Power supply	DC 30 V
Electrical connection	Cable gland M20 x 1.5, with 1 m cable, flying leads
Switching function	Change-over contact
Switching contacts	2

Materials

Case material	aluminium, EN AC-AI Si9Cu3(Fe), black painted, Aluminium, EN AC-Al Si9Cu3(Fe), black painted, aluminium, stainless steel
Wetted parts material	Aluminium, Al Si9Cu3(Fe), black painted, Stainless steel 1.4571, Copper alloy, Steel, Stainless steel, FPM/FKM, NBR, aluminium
Sealing material	FPM/FKM, NBR

Operating environment

Ambient temperature	−10…+70 °C
IP rating	IP65
Weight	1.4 kg

Certifications and approvals

Certifications	RoHSEACCEEx UkraineREACH
Explosion protection	Gas II 2G Ex ia IIC T4/T5/T6 GbDust II 2D Ex ia IIIB T135°C DbATEX directive Hazardous areas Gas II 2G Ex ia IIC T4/T5/T6 Gb Dust II 2D Ex ia IIIB T135°C DbIECEx Hazardous areasEx Ukraine Hazardous areasDust II 2D Ex ia IIIB T135℃ DbATEXIECExEACEx Ukraine

Additional details

Dial size	100 mm
Datasheet languages	EN, DE

Tables from datasheet

Basic information

Nominal size	Ø100mm
Window	Plastic, with plug screw for switch point setting
Case version	Display case, aluminium, EN AC-AI Si9Cu3(Fe); black painted
	→Measuring chamber, see table 'Measuring element'

Measuring element

Type of measuring element	Measuring chamber with diaphragm and media chambers⊕and⊖
Material
Measuring chamber	■ Aluminium, EN AC-Al Si9Cu3(Fe), black painted ■ Stainless steel 1.4571
Diaphragm, sealings	■ FPM/FKM ■ NBR

Accuracy specifications

Repeatability	≤ 1.6 %of measuring span
Temperature error	On deviation from the reference conditions at the measuring system: Max. ±0.8 %/10 K of end value of measuring range
Reference conditions
Ambient temperature	+20 °C [+68 °F]

Measuring range mbar	psi
0 ... 250	0 ... 15
0 ... 400	0 ... 25
0 ... 600	0 ... 40
0 ... 1,000	0 ... 60
bar	kg/cm 2
0 ... 0.25	0 ... 0.25
0 ... 0.4	0 ... 0.4
0 ... 0.6	0 ... 0.6
0 ... 1	0 ... 1
0 ... 1.6	0 ... 1.6
0 ... 2.5	0 ... 2.5
0 ... 4	0 ... 4
0 ... 6	0 ... 6
0 ... 10	0 ... 10
kPa	MPa
-12.5 ... +12.5	0 ... 0.025
0 ... 25	0 ... 0.04
0 ... 40	0 ... 0.06
0 ... 60	0 ... 0.1
0 ... 100	0 ... 0.16
0 ... 160	0 ... 0.25
0 ... 250	0 ... 0.4
0 ... 400	0 ... 0.6
0 ... 600	0 ... 1
0 ... 1,000

View all (9)

Further information on: Measuring ranges

Type of pressure	Differential pressure
Special measuring ranges	Other measuring ranges on request
Unit	■ bar ■ psi ■ mbar ■ kg/cm² ■ MPa ■ kPa

Logo	Description	Country
	EU declaration of conformity	European Union

Logo	Description	Country
	EU declaration of conformity	European Union
	ATEX directive Hazardous areas Gas II 2G Ex ia IIC T4/T5/T6 Gb Dust II 2D Ex ia IIIB T135°C Db
	IECEx Hazardous areas	International
	EAC ■ EMCdirective ■ Low voltage directive ■ Hazardous areas	Eurasian Economic Community
	Ex Ukraine Hazardous areas	Ukraine

Safety-related characteristic values (Ex)

Terminals
Switch A	'1' / '4' / '2'
Switch B	'3' / '6' / '5'
Maximum voltage U i	DC 30V
Maximum current l i	100mA
Maximum power P i (gas)	1W
Maximum power Pi (dust)
Ta ≤ +40 °C	≤ 750mW
Ta ≤ +60 °C	≤ 650mW
Effective internal capacitance C i	Negligible
Effective internal inductance L i	Negligible

	Description	Order number
-	Panel mounting flange, aluminium	14074004
Panel mounting flange, stainless steel	14075088
910.17	Sealings →see data sheet AC 09.08	-
910.15	Syphons →see data sheet AC 09.06	-
IV3x	4-way valve block, stainless steel →For dimensions see page 8	2043559
4-way valve block, brass →For dimensions see page 8	2043567
-	Compression fittings with ferrule or clamp ring for pipe diameters 6, 8 and10mm	On request