Page 170 - Single-line automatic lubrication systems

Pressure sensor

DSD

Pressure sensors

Description
Technical data
DSD sensors are single, mechanical-diaphragm pressure switches.
They are used for pressure monitoring and are dependent upon the Function principle digital pressure switch
mechanical design of resulting pressure and preloaded spring force Lubricant oil and fluid grease NLGI 000, 00, 0
Operating temperature -30 to +100 °C; -22 to +212 °F
of the pressure spring. Under pressure, a pressure plunger carries Operating pressure static:
the contact washer and moves it to the opposing contact and closes max. 300 bar; max. 4 350 psi
dynamic:
the electrical circuit. If the pressure is reduced by the amount of hys- max. 150 bar; max. 2 175 psi
teresis, the switch opens again. On an NC contact, contacts are made Switching pressure 0,5 to 45 bar; 7.25 to 653 psi
in the opposite way. In single-line systems, it can be integrated into Switch type mechanical diaphragm pressure
metering devices at the end of the lubrication line. Contact type switch
NO, NC (change-over with
rectangular plug connector only)
Features and benefits Contact rating max. 18 VA, 90 VA, 100 VA
Switching voltage/current 36 V DC / 2,5 A / 0,5 A
• Available for a pressure rating from 0 to 45 bar 250 V AC / 5 A
in fixed increments Electrical connection M 3 or M 12×1 or
DIN EN 175301-803-A
• Electrical connection is established via screwed contacts, Pressure port M 10×1 tapered
tab connectors, circular connectors or G 1 /8 on request
Materials:
rectangular plug connectors Housing steel, galvanized, Cr6-free
Contact silver plated
• Pressure monitoring, dependent upon the mechanical design Membrane NBR or FKM
of resulting pressure and preloaded spring force of Protection class IP 65
the pressure spring Dimensions depending on model, ∅ × h
26,75 × 50 mm; 1.05 × 1.97 in
• Mechanical switch can be used as both a normally closed 26,75 × 49 mm; 1.05 × 1.93 in
contact (NC) and a normally open contact (NO) Mounting position any

Applications
• Machine tools NOTE
• Printing machines Further technical information, technical drawings,
accessories, spare parts or product function descriptions
• Vehicles
available on SKF.com/lubrication:
1-1701-EN
3D
skf-lubrication partcommunity com/3d-cad-models

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