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Pressure Switches & Sensors

DNS/VNS Pressure 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

DNS/VNS Pressure 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 a robust housing made of seawater resistant die cast aluminium GD Al Si 12. Switching differential is not adjustable with DNS/VNS - 201 types. Switching differential is adjustable with DNS/VNS - 203 types. DNS/VNS - 351 types are chemical versions(switch ing housing with chemical protection) and Hysteresis is not adjustable for these types.

Features & Benefits:
  • The DNS and VNS series are calibrated for falling pressure
  • This means that the adjustable switching pressure on the scale corresponds to the switching point at falling pressure
  • The reset point is higher by the amount of the switching differential.
  • High quality stainless steel components of the sensor system
Certifications:
  • SIL2 according IEC 61508-2
Specifications

Others

  • Overall Width
    • 112 Millimeter-PRD
  • Minimum Operating Ambient Temperature
    • -25 Degrees Celsius
  • Maximum Media Temperature
    • 70 Degrees Celsius
  • Minimum Media Temperature
    • -25 Degrees Celsius
  • Connection Size
    • G 1/2 External; G 1/4 Internal inch
  • Maximum Operating Ambient Temperature
    • 70 Degrees Celsius
  • Switch Configuration
    • SPDT Microswitch 250; Capacity 5 A Inductive, 8 A Resistive
  • Pressure Type
    • Overpressure Relative
    • Overpressure/Relative
    • overdruk relatief
    • sobrepresión relativa
    • surpression relative
    • Überdruck relativ
  • Mounting Type
    • Pressure Gauge Connection inch
  • For Use With
    • Chemical Plants; Process Engineering volt
  • Brand
    • FEMA
    • Honeywell
  • Scale Calibration
    • falling pressure
  • Electrical Connection
    • Plug DIN EN 175301
  • Regulatory Approvals
    • SIL 2 according IEC 61508-2 Watt
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in

Others

  • Overall Width
    • 112 Millimeter-PRD
  • Minimum Operating Ambient Temperature
    • -25 Degrees Celsius
  • Maximum Media Temperature
    • 70 Degrees Celsius
  • Minimum Media Temperature
    • -25 Degrees Celsius
  • Connection Size
    • G 1/2 External; G 1/4 Internal inch
  • Maximum Operating Ambient Temperature
    • 70 Degrees Celsius
  • Switch Configuration
    • SPDT Microswitch 250; Capacity 5 A Inductive, 8 A Resistive
  • Pressure Type
    • Overpressure Relative
    • Overpressure/Relative
    • overdruk relatief
    • sobrepresión relativa
    • surpression relative
    • Überdruck relativ
  • Mounting Type
    • Pressure Gauge Connection inch
  • For Use With
    • Chemical Plants; Process Engineering volt
  • Brand
    • FEMA
    • Honeywell
  • Scale Calibration
    • falling pressure
  • Electrical Connection
    • Plug DIN EN 175301
  • Regulatory Approvals
    • SIL 2 according IEC 61508-2 Watt
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in
  • Overall Width : 112 Millimeter-PRD
  • Minimum Operating Ambient Temperature : -25 Degrees Celsius
  • Maximum Media Temperature : 70 Degrees Celsius
  • Minimum Media Temperature : -25 Degrees Celsius
  • Connection Size : G 1/2 External; G 1/4 Internal inch
  • Maximum Operating Ambient Temperature : 70 Degrees Celsius
  • Switch Configuration : SPDT Microswitch 250; Capacity 5 A Inductive, 8 A Resistive
  • Pressure Type : Overpressure Relative|Overpressure/Relative|overdruk relatief|sobrepresión relativa|surpression relative|Überdruck relativ
  • Mounting Type : Pressure Gauge Connection inch
  • For Use With : Chemical Plants; Process Engineering volt
  • Brand : FEMA|Honeywell
  • Scale Calibration : falling pressure
  • Electrical Connection : Plug DIN EN 175301
  • Regulatory Approvals : SIL 2 according IEC 61508-2 Watt
  • Connection Type : Internal Thread G1/4 in, External Thread G1/2 in
Others
Name
Description
File Size
Date
Size
Pressure switches and vacuum switches with stainless steel sensors
application/pdf 1.1 MB
5/14/2023
1.1 MB
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 (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
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
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
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 (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 (Spanish)
application/pdf 554.73 KB
7/19/2023
554.73 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 (Czech)
application/pdf 1.11 MB
7/19/2023
1.11 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 (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 (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 (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 (Estonian)
application/pdf 561.08 KB
7/19/2023
561.08 KB
DNS-VNS Druck- und Vakuumschalter mit Edelstahl-Sensor (1.4571)
application/pdf 1.24 MB
5/14/2023
1.24 MB
Name
Description
File Size
Date
Size
Pressure switches and vacuum switches with stainless steel sensors
1.1 MB
5/14/2023
1.1 MB
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 (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
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
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
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 (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 (Spanish)
554.73 KB
7/19/2023
554.73 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 (Czech)
1.11 MB
7/19/2023
1.11 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 (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 (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 (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 (Estonian)
561.08 KB
7/19/2023
561.08 KB
DNS-VNS Druck- und Vakuumschalter mit Edelstahl-Sensor (1.4571)
1.24 MB
5/14/2023
1.24 MB
Name
Description
File Size
Date
Size
Pressure switches and vacuum switches with stainless steel sensors
1.1 MB
5/14/2023
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 (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
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
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
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 (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 (Spanish)
554.73 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 (Czech)
1.11 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 (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 (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 (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 (Estonian)
561.08 KB
7/19/2023
DNS-VNS Druck- und Vakuumschalter mit Edelstahl-Sensor (1.4571)
1.24 MB
5/14/2023