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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

  • Minimum Operating Ambient Temperature
    • -20
  • Switching Differential
    • 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature
    • 60
  • Pressure Type
    • Overpressure Relative
    • overdruk relatief
    • sobrepresión relativa
    • sovrapressione relativa
    • surpression relative
    • Überdruck relativ
  • Scale Calibration
    • falling pressure
  • 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
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in
  • Brand
    • FEMA
    • Honeywell

Others

  • Minimum Operating Ambient Temperature
    • -20
  • Switching Differential
    • 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature
    • 60
  • Pressure Type
    • Overpressure Relative
    • overdruk relatief
    • sobrepresión relativa
    • sovrapressione relativa
    • surpression relative
    • Überdruck relativ
  • Scale Calibration
    • falling pressure
  • 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
  • Connection Type
    • Internal Thread G1/4 in, External Thread G1/2 in
  • Brand
    • FEMA
    • Honeywell
  • Minimum Operating Ambient Temperature : -20
  • Switching Differential : 0.002 bar (air pressure)
  • Maximum Operating Ambient Temperature : 60
  • Pressure Type : Overpressure Relative|overdruk relatief|sobrepresión relativa|sovrapressione relativa|surpression relative|Überdruck relativ
  • Scale Calibration : falling pressure
  • 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
  • Connection Type : Internal Thread G1/4 in, External Thread G1/2 in
  • Brand : FEMA|Honeywell
Sort
Others
Document Title
Document Type
File Size
Document Title
Document Type
File Size
Product Number
Image
SKU
Description
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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