Compact differential pressure switch

Name: Compact differential pressure switch
Brand: WIKA

Compact differential pressure switch with flameproof enclosure Ex d for safety-critical applications in process industries

Range

-12.5…40 bar

Accuracy

≤ 1 % of span

Protection

IP66

RoHSCEEACCCCKOSHAATEXIECExNACEEx d I MbEx d IIC T6/T4 Ga/GbEx d IIIC T85/T135 Da/Db

Price

On request

Depends on configuration

Request a quote

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Description

These high-quality pressure switches have been developed especially for safety-critical applications. The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.

In order to ensure as flexible operation as possible, the pressure switches are fitted with micro switches, which enable the switching of an electrical load of up to AC 250 V, 20 A directly.

For lower switching power ratings, such as for PLC applications, argon gas-filled micro switches with gold-plated contacts can be selected.

Special features

No power supply needed for switching of electrical loads
Robust switch enclosure from aluminium alloy or stainless steel 316L, IP66, NEMA 4X
Setting ranges from 0 ... 160 mbar to 0 ... 40 bar with high static and high one-sided pressure up to 250 bar
Repeatability: ≤ 1 % of span
1 set point, SPDT or DPDT, high switching power up to AC 250 V, 15 A

Identification

Model	DE, DEC
Product family	DE
Subcategory	Differential pressure switch

Measuring range

Pressure ranges

0…40 bar · -1.25…1.25 bar · -2…2 bar · -3…3 bar · -5…5 bar · -8…8 bar · -12.5…12.5 bar · 0…0.16 bar · 0…0.25 bar · 0…0.4 bar · 0…0.6 bar · 0…1 bar · 0…2.5 bar · 0…4 bar · 0…6 bar · 0…10 bar · 0…16 bar · 0…25 bar · -0.04…0.12 bar · -0.06…0.19 bar · -0.2…0.2 bar · -0.3…0.3 bar · -0.5…0.5 bar · 0…1.6 bar · 0…160 mbar · -40…120 mbar · -60…190 mbar · -200…200 mbar · -300…300 mbar · -500…500 mbar

Accuracy

Accuracy class	≤ 1 % of span
Accuracy standard	IEC 61298-2:2008
Safety integrity level (SIL)	SIL 2 per IEC 61508

Process conditions

Process connection	½ NPT¼ NPT femaleG ½ AG ¼ AM20 x 1.5G ¼ A maleG ¼ femaleM20 x 1.5 maleG ¼ A male via adapterG ¼ female via adapterM20 x 1.5 male via adapter
Process temperature	−30…+85 °C

Electrical characteristics

Electrical connection	½ NPT female
Switching function	SPDT or DPDT
Switching contacts	1

Materials

Case material	aluminium alloy, stainless steel 316L
Wetted parts material	AISI 316, AISI 304, AISI 316L, Monel 400, Inconel 718, aluminium alloy (EN AW-5082), Monel®400, Inconel®718
Sealing material	NBR

Operating environment

Ambient temperature	−30…+85 °C
IP rating	IP66
Weight	5.4 kg

Certifications and approvals

Certifications	RoHSCEEACCCCKOSHAATEXIECExNACE
Explosion protection	Ex d I MbEx d IIC T6/T4 Ga/GbEx d IIIC T85/T135 Da/Db

Additional details

Datasheet languages

EN, DE

Tables from datasheet

Contact version	Electrical rating (resistive load)
		AC	DC
A	1 x SPDT, silver	250 V, 15 A	24 V, 2 A, 125 V, 0.5 A, 220 V, 0.25 A
B	1 x SPDT, silver, hermetically sealed, argon gas filling 2)	250 V, 15 A	24 V, 2 A, 220 V, 0.5 A
C	1 x SPDT, gold-plated, hermetically sealed, argon gas filling 2)	125 V, 1 A	24 V, 0.5 A
G	1 x DPDT, silver	250 V, 1 A	24 V, 0.5 A

Setting range	Stainless steel version	NACE version 1)	Monel version
Diaphragm	Process connection	Diaphragm	Process connection	Diaphragm	Process connection
0 ... 160 mbar	AISI 316	AISI 316L	Monel ® 400	AISI 316L	Monel ® 400
0 ... 250 mbar
0 ... 400 mbar
0 ... 600 mbar
0 ... 1 bar
0 ... 2.5 bar
0 ... 4 bar	AISI 304
0 ... 6 bar
0 ... 10 bar
0 ... 16 bar	Inconel ® 718		Inconel ® 718		-
0 ... 25 bar
0 ... 40 bar

Setting range	Diaphragm	Process connection
0 ... 160 mbar	Inconel ® 718	Aluminium alloy (EN AW-5082 per EN 573-3)
0 ... 250 mbar
0 ... 400 mbar
0 ... 600 mbar
0 ... 1 bar
0 ... 1.6 bar
0 ... 2.5 bar
0 ... 4 bar
0 ... 6 bar

Δp-cell	Setting range	Fixed dead band for contact version	Static / One-sided pressure
	in bar	1 contact A, B, C in mbar	1 contact G in mbar	in bar
L	0 ... 0.16	≤ 6	≤ 12	≤ 40, ≤ 100 or ≤ 160
	0 ...0.25	≤ 8	≤ 20
H	0 ... 0.4	≤ 20	≤ 40
	0 ... 0.6	≤ 25	≤ 50
	0 ... 1	≤ 40	≤ 80
	0 ... 2.5	≤ 70	≤ 170	≤ 40, ≤ 100, ≤ 160 or ≤ 250
	0 ... 4	≤ 120	≤ 200
	0 ... 6	≤ 180	≤ 250
	0 ... 10	≤ 300	≤ 400
	0 ... 16	≤ 480	≤ 600
	0 ... 25	≤ 700	≤ 1,000
V	0 ... 40	≤ 1,200	≤ 1,800	≤ 40, ≤ 100 or ≤ 160

View all (6)

Δp-cell	Setting range	Fixed dead band for contact version	Static / One-sided pressure
	in bar	1 contact A, B, C in mbar	1 contact G in mbar	in bar
L	0 ... 0.25	≤ 5	≤ 10	≤ 25
H	0 ... 1	≤ 30	≤ 50
	0 ... 1.6	≤ 50	≤ 110
	0 ... 2.5	≤ 80	≤ 170
	0 ... 4	≤ 120	≤ 200
	0 ... 6	≤ 120	≤ 200

Logo	Description	Country
	EU declaration of conformity ■ Pressure equipment directive ■ Low voltage directive ■ RoHS directive ■ ATEX directive 1) I M2(only available with stainless steel 316L switch enclosure) II 1/2GD	European Community
	IECEx 1) Ex d I Mb (only available with stainless steel 316L switch enclosure) Ex d IIC T6/T4 2) Ga/Gb Ex d IIIC T85/T135 2) Da/Db	IECEx member states
	EAC (option) Hazardous areas	Eurasian Economic Community
	Ex-Ukraine (option) Hazardous areas	Ukraine
	CCC (option) Hazardous areas	China
	KOSHA (option) Hazardous areas	South Korea