Page 168 - Single-line automatic lubrication systems

Pressure sensor

DSA

Pressure sensors

Description
Technical data
SKF pressure switches of the DSA series monitor the pressure of a
centralized lubrication system to assess and help to ensure its proper Function principle digital pressure switch
oil and fluid grease NLGI 000, 00, 0
Lubricant
function. Important monitoring parameters in an intermittently oiled compressed air
operated centralized lubrication system with single-line metering Operating temperature +10 to +60 °C; +50 to +140 °F
Operating pressure 1) max. 45 bar; max. 650 psi
devices are pressure buildup, pressure head and pressure reduction.
Switching pressure range 1 to 30 bar; 14.5 to 435 psi
Switch type micro switch
Features and benefits Contact type change-over
Contact rating max. 125 VA
Switch current min. 2 mA , max. 300 mA
• Inexpensive mechanical diaphragm pressure switches Switching rate max. 30 per min
• Micro switch is designed as a change-over switch and can Switching voltage max. 250 V AC / 30 V DC
be used as both a normally closed contact (NC) and a normally Electrical connection 2) DIN EN 175301-803, plug
∅ 6 mm; connector DIN 3862,
Connection fitting
open contact (NO) for solderless pipe union,
• Switches are available for rising and falling pressures from plug connector for pipe
1 to 30 bar (14.5 to 435 psi) and have non-adjustable increments Materials:
Housing PA6 6GF30
Contact AuAg25Pt6
Applications Membrane FKM (FPM)
Protection class with cable box IP 65
Safety class II
• Machine tools
Dimensions min. 76 × 120 × 41 mm
• Printing machines max. 83 × 129 × 41 mm
• Wind min. 3.0 × 4.7 × 1.6 in
• Vehicle Mounting position max. 3.3 × 5.1 × 1.6 in
any
• Steel and heavy industries

NOTE
Further technical information, technical drawings,
accessories, spare parts or product function descriptions
available on SKF.com/lubrication:
1-1701-EN
3D
skf-lubrication partcommunity com/3d-cad-models 1) A pressure-regulating valve must be installed in the system to prevent operating
pressure from exceeding the permissible level
2) M 12x1 circular plug, only for design with electrical connection center
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