Page 181 - Single-line automatic lubrication systems

Pressure sensor

234-11272-4

Pressure sensors

Description
Technical data
The electronic pressure switch with internal stainless steel
diaphragm, suits for pressure control in automatic single-line Order number 234-11272-4
lubrication systems. It has a 4 digit 7 segment digital display, two Function principal electrically operated dual output signal
solid state contacts or two solid state contacts plus one analog analogue/digital pressure switch
Lubricant oil, fluid grease and grease up to NLGI 2
output for switching point and hysteresis. All contacts can be adjusted
Operating temperature –25 to +100 °C ; –13 to +212 °F
via push buttons. The pressure switch is virtually maintenance free. Operating pressure 10 to 600 bar; 145 to 8702 psi
Operating elements 3 easy-response push buttons
Protection class IP 65 with plug
Features and benefits Pressure port G 1 /4 M
Electrical connection M12 × 1; for 4 pin or 5 pin plug
• Alphanumeric 4-digit 7 segment LED display Current output 4-20 mA, apparent ohmic
resistance 600 Ω at 24 V DC
• Microprocessor controlled Power supply 18-32 V DC reversed
polarity protected (SELV, PELV)
• Self monitoring with error display Digital display 4-digit 7 segment LED display
Power consumption approx. 50 mA at 24 V DC
• Scalable analog output without load
Material:
• Programmable parameters via keypad Wetted parts stainless steel 1.4301
Electronics housing aluminum die-cast
• Adjustable password protection
Seals FKM
• Revers polarity and overvoltage protected, short-circuit proof Dimensions 75 × 130 × 55 mm
2.95 × 5.12 × 2.16 in
max 60 VDC temporary Mounting position vertical
• Rugged stainless steel construction
• Vibration and shock-proof, longterm stability

Applications
NOTE
• Machine tools
Further technical information, technical drawings,
• Chemical technics accessories, spare parts or product function descriptions
• Wind, vehicle, steel and heavy industries available on SKF.com/lubrication.
• Automation

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