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Pressure Switches & Sensors

Ex-DNS / Ex-VNS Pressure Switches and vacuum switches with stainless steel sensors (14571)

Pressure switches of the DNS series are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored.

Overview

Ex-DNS / Ex-VNS Pressure Switches and vacuum switches with stainless steel sensors (1.4571) are are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored. All components of the sensor system are made from highquality stainless steel (1.4571) and welded using the latest methods without filler metals. The pressure sensor is gasket free plasma welded.It comes with robust housing made of seawaterresistant die cast aluminium GD Al Si 12.The die cast aluminium housing in GD Al Si ischromated and stove enamelled with resistantplastic. Corrosion tests with 3% saline solutionand 30 temperature changes from +10 to+80°C showed no surface changes after 20days.For Ex-DNS /Ex-VNS switching differential is not adjustable.

Features & Benefits:
  • The Ex-DNS and Ex-VNS series are calibrated for falling pressure. This means that the adjustableswitching pressure on the scale corresponds to the switching point at falling pressure. The reset point is higher by the amount of the switching differential.
Certifications:
  • IBExU12ATEX1040 according ATEX 2014/34/EU
  • IECEx IBE 14.0077
  • SIL2 according IEC 61508-2
Specifications

Others

  • Switching Differential
    • 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature
    • 60
  • Minimum Operating Ambient Temperature
    • -20
  • Switch Configuration
    • 3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC
    • 3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC
    • SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive
    • SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive
  • Brand
    • FEMA
    • Honeywell
  • Pressure Type
    • Overpressure Relative
    • overdruk relatief
    • sobrepresión relativa
    • sovrapressione relativa
    • surpression relative
    • Überdruck relativ
  • Scale Calibration
    • falling pressure
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in

Others

  • Switching Differential
    • 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature
    • 60
  • Minimum Operating Ambient Temperature
    • -20
  • Switch Configuration
    • 3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC
    • 3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC
    • SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive
    • SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive
  • Brand
    • FEMA
    • Honeywell
  • Pressure Type
    • Overpressure Relative
    • overdruk relatief
    • sobrepresión relativa
    • sovrapressione relativa
    • surpression relative
    • Überdruck relativ
  • Scale Calibration
    • falling pressure
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in
  • Switching Differential : 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature : 60
  • Minimum Operating Ambient Temperature : -20
  • Switch Configuration : 3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC|3 A bei 250 , 2 A bei 250 induktiv, 3 A bei 24 V DC, 0,03 A bei 250 V DC|SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive|SPDT Microswitch; Capacity 2 A Inductive, 3 A Resistive
  • Brand : FEMA|Honeywell
  • Pressure Type : Overpressure Relative|overdruk relatief|sobrepresión relativa|sovrapressione relativa|surpression relative|Überdruck relativ
  • Scale Calibration : falling pressure
  • Connection Type : Internal Thread G1/4 in, External Thread G1/2 in
Others
Name
Description
File Size
Date
Size
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (German)
application/pdf 706.68 KB
7/19/2023
706.68 KB
FEMA Pressure Switch and thermostat type range
application/pdf 250.54 KB
9/20/2023
250.54 KB
Safety Manual - DWAM,DWAMV,SDBAM,FD (German and English)
application/pdf 652.71 KB
9/19/2023
652.71 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Hungarian)
application/pdf 628.13 KB
7/19/2023
628.13 KB
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (English)
application/pdf 656.75 KB
7/19/2023
656.75 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Danish)
application/pdf 556.92 KB
7/19/2023
556.92 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Polish)
application/pdf 641.86 KB
7/19/2023
641.86 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Norwegian)
application/pdf 549.86 KB
7/19/2023
549.86 KB
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (English)
application/pdf 661.46 KB
7/19/2023
661.46 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Russian)
application/pdf 660.12 KB
7/19/2023
660.12 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Chinese)
application/pdf 740.25 KB
7/19/2023
740.25 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (French)
application/pdf 571.56 KB
7/19/2023
571.56 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM(Danish)
application/pdf 550.91 KB
7/19/2023
550.91 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
application/pdf 1.9 MB
7/19/2023
1.9 MB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Estonian)
application/pdf 561.08 KB
7/19/2023
561.08 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Spanish)
application/pdf 554.73 KB
7/19/2023
554.73 KB
SIL 2 Assessment Report
application/pdf 1.46 MB
7/27/2023
1.46 MB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Czech)
application/pdf 1.11 MB
7/19/2023
1.11 MB
Safety Manual - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
application/pdf 612.55 KB
7/19/2023
612.55 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Italian)
application/pdf 560.06 KB
7/19/2023
560.06 KB
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (German)
application/pdf 705.23 KB
7/19/2023
705.23 KB
Name
Description
File Size
Date
Size
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (German)
706.68 KB
7/19/2023
706.68 KB
FEMA Pressure Switch and thermostat type range
250.54 KB
9/20/2023
250.54 KB
Safety Manual - DWAM,DWAMV,SDBAM,FD (German and English)
652.71 KB
9/19/2023
652.71 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Hungarian)
628.13 KB
7/19/2023
628.13 KB
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (English)
656.75 KB
7/19/2023
656.75 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Danish)
556.92 KB
7/19/2023
556.92 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Polish)
641.86 KB
7/19/2023
641.86 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Norwegian)
549.86 KB
7/19/2023
549.86 KB
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (English)
661.46 KB
7/19/2023
661.46 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Russian)
660.12 KB
7/19/2023
660.12 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Chinese)
740.25 KB
7/19/2023
740.25 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (French)
571.56 KB
7/19/2023
571.56 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM(Danish)
550.91 KB
7/19/2023
550.91 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
1.9 MB
7/19/2023
1.9 MB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Estonian)
561.08 KB
7/19/2023
561.08 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Spanish)
554.73 KB
7/19/2023
554.73 KB
SIL 2 Assessment Report
1.46 MB
7/27/2023
1.46 MB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Czech)
1.11 MB
7/19/2023
1.11 MB
Safety Manual - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
612.55 KB
7/19/2023
612.55 KB
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Italian)
560.06 KB
7/19/2023
560.06 KB
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (German)
705.23 KB
7/19/2023
705.23 KB
Name
Description
File Size
Date
Size
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (German)
706.68 KB
7/19/2023
FEMA Pressure Switch and thermostat type range
250.54 KB
9/20/2023
Safety Manual - DWAM,DWAMV,SDBAM,FD (German and English)
652.71 KB
9/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Hungarian)
628.13 KB
7/19/2023
Technical Datasheet - EX-DCM/EX-DNM Pressure switches and pressure monitors for overpressure (English)
656.75 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Danish)
556.92 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Polish)
641.86 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Norwegian)
549.86 KB
7/19/2023
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (English)
661.46 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Russian)
660.12 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Chinese)
740.25 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (French)
571.56 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM(Danish)
550.91 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
1.9 MB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Estonian)
561.08 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Spanish)
554.73 KB
7/19/2023
SIL 2 Assessment Report
1.46 MB
7/27/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Czech)
1.11 MB
7/19/2023
Safety Manual - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (German and English)
612.55 KB
7/19/2023
Installation and Operating Instructions - DCM,DNM,DNS,VCM,VNM,VNS,DDCM,EX-DCM,EX-DNM,EX-DNS,EX-VNS,EX-DDCM,EX-VCM,EX-VNM (Italian)
560.06 KB
7/19/2023
Technical Datasheet - EX-DNS/EX-VNS Pressure switches and vacuum switches with stainless steel sensors (1.4571) (German)
705.23 KB
7/19/2023
Product Number
Image
SKU
Description
alt
EX-DNS025
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar
alt
EX-DNS025-S
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar, with service function
alt
EX-DNS06
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,1…0,6 bar; switching differential: 10 ... 35 mbar; max pressure: 6 bar
alt
EX-DNS1
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,2…1,6 bar; switching differential: 10 ... 40 mbar; max pressure: 6 bar
alt
EX-DNS10
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 1…10 bar; switching differential: 0,05 ... 0,3 bar; max pressure: 16 bar
alt
EX-DNS16
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 3…16 bar; switching differential: 0,05 ... 0,3 bar; max pressure: 25 bar
alt
EX-DNS16-S
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar; with service function
alt
EX-DNS3
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,2…2,5 bar; switching differential: 10 ... 90 mbar; max pressure: 16 bar
alt
EX-DNS6
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,5…6 bar; switching differential: 0,05 ... 0,2 bar; max pressure: 16 bar
alt
EX-VNS111
Vacuum Pressure Switch to ATEX 201434EU, SPCO; differential not adjustable; setting range: –1 …+0,1 bar; switching differential: 10 ... 65 mbar; max pressure: 6 bar
Image
SKU
Description
alt
EX-DNS025
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar
alt
EX-DNS025-S
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar, with service function
alt
EX-DNS06
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,1…0,6 bar; switching differential: 10 ... 35 mbar; max pressure: 6 bar
alt
EX-DNS1
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,2…1,6 bar; switching differential: 10 ... 40 mbar; max pressure: 6 bar
alt
EX-DNS10
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 1…10 bar; switching differential: 0,05 ... 0,3 bar; max pressure: 16 bar
alt
EX-DNS16
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 3…16 bar; switching differential: 0,05 ... 0,3 bar; max pressure: 25 bar
alt
EX-DNS16-S
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,04…0,25 bar; switching differential: 20 ... 37 mbar; max pressure: 6 bar; with service function
alt
EX-DNS3
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,2…2,5 bar; switching differential: 10 ... 90 mbar; max pressure: 16 bar
alt
EX-DNS6
Pressure Switch with Stainless Steel Sensor to ATEX 201434EU, SPCO; differential not adjustable; setting range: 0,5…6 bar; switching differential: 0,05 ... 0,2 bar; max pressure: 16 bar
alt
EX-VNS111
Vacuum Pressure Switch to ATEX 201434EU, SPCO; differential not adjustable; setting range: –1 …+0,1 bar; switching differential: 10 ... 65 mbar; max pressure: 6 bar