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Mobile OEM - Differential Pressure Switches

Deltadyne®® Differential Pressure Switches
Differential pressure switches are used to indicate® when the filter element is becoming blocked and needs to be changed.
Pall has developed a series of mechanical and electrical indicators for use with the Industrial and transportation range of oil filters.

Features
A range of switches are available with standard pressure settings ranging from 1.1 to 5 bar (16 to 73 psi).® There are Deutsch and AMP IP67 electrical switches for easy and robust installation.

How it Works
Deltadyne® differential pressure devices operate by sensing the differential pressure between ports upstream and downstream of the filter element. The differential pressure acts on a piston/magnet assembly that is contained in the indicator device.
®When the differential pressure across the internal piston/magnet assembly reaches a preset value, determined by the range spring, the piston assembly moves downward sufficiently to reduce the attractive force between the magnet and switch, which actuates the switch to signal the need to change the element.


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Description
Deltadyne®® Differential Pressure Switches
Differential pressure switches are used to indicate® when the filter element is becoming blocked and needs to be changed.
Pall has developed a series of mechanical and electrical indicators for use with the Industrial and transportation range of oil filters.

Features
A range of switches are available with standard pressure settings ranging from 1.1 to 5 bar (16 to 73 psi).® There are Deutsch and AMP IP67 electrical switches for easy and robust installation.

How it Works
Deltadyne® differential pressure devices operate by sensing the differential pressure between ports upstream and downstream of the filter element. The differential pressure acts on a piston/magnet assembly that is contained in the indicator device.
®When the differential pressure across the internal piston/magnet assembly reaches a preset value, determined by the range spring, the piston assembly moves downward sufficiently to reduce the attractive force between the magnet and switch, which actuates the switch to signal the need to change the element.
Specifications
  • Switch: Normally closed single pole contacts open on differential pressure exceeding set point
  • Switching Power: 10W Maximum, any combination of V and A not to exceed their individual max.
  • Switching Voltage: 50V DC Maximum
  • Switching Current: 0.5 A Maximum
  • Carry Current: 1.5 A Maximum
  • Fatigue Test Pressure:
    • > 1 Million cycles at 240 Bar (3480 psi)
    • > 2 Million cycles at 220 Bar (3190 psi)
  • Operating Temperature:
    • Maximum Operating Temperature 120 ®C (250 ®F)
    • Minimum Operating Temperature -20 ®C (-4 ®F)
  • Fluid Compatibility: Standard mineral oils and hydrocarbon-based synthetic Hydraulic and Lubrication fluids and Fuels
  • Materials of Construction: Aluminum alloy body
  • Seal Materials: Nitrile or Flurocarbon
  • Environmental: IP67 to IEC 60529 - connected or unconnected Electrical Connectors: RCA 168 - Connector AMP Junior timer to mate with AMP junior timer receptacle 827551-3 and contacts 925596-1 RCA 169 - Connector Deustch DT04-2P to mate with Deutsch DT06-2S receptacle.
  • System Interface: To fit all standard Pall threaded indicator ports
Type
Testing and Monitoring Equipment
Ordering Information
Pressure Switch P/N: RCA16 [1] C [2] [3] [4]

Table 1 - Connector Option

Code Connector
8 AMP Junior Timer
9 Deutsch DT04-2P

Table 2 - Internal Seal Option

Code Seal
H Nitrile
Z Fluorocarbon

Table 3 - Pressure Setting

Code Pressure Availability
085 1.4 ® 0.2 bard (20 ® 3 psid) 169 only
090 2.4 ® 0.3 bard (35 ® 4 psid) 168 & 169
091 3.4 ® 0.4 bard (50 ® 6 psid) 168 & 169

Table 4 - External Seal Option

Code Seal
H Nitrile
Z Fluorocarbon
Application
Heavy Hydraulic, Heavy Lubrication, Medium & Light Fuel, Medium & Light Hydraulic, Medium & Light Lubrication