Pressure switch 234-11272-4

For single-line lubrication systems

An electronic pressure switch with a stainless steel internal diaphragm for monitoring pressure in automatic single-line lubrication systems. It features a 4-digit, 7-segment digital display, two solid-state contacts, or two solid-state contacts with an analog output for the switch point and hysteresis. All contacts can be adjusted via the keypad. The pressure switch is virtually maintenance-free.

Technical characteristics and advantages

  • Alphanumeric 4-digit 7-segment LED display
  • Microprocessor controlled
  • Automatic monitoring with error display
  • Scalable analog output
  • Programming parameters using the keyboard
  • Adjustable password protection
  • Overload and reverse polarity protection, short circuit protection max 60 VDC, temporary
  • Durable stainless steel construction
  • Shock and vibration resistance, long-term stability

Application areas

  • Machine tools
  • Chemical engineering processes
  • Wind energy, automotive, metallurgy and heavy industry
  • Process automation

Documentation

Category:

Description

Technical specifications
Operating principle Electric analog/digital pressure switch with dual output signal
Lubricant oil and liquid lubricant: NLGI 000, 00, 0
plastic grease: NLGI 1, 2
Operating temperature from −25 to +100 °C from −13 to +212 °F
Working pressure 10–600 bar 145–8702 psi
Working elements 3 quick-release buttons
Operating voltage 18–36 VDC
Output current 4–20 mA, full active
resistance 600 ohms at 24 VDC
power unit 18-32 VDC with protection
from reverse polarity (SELV, PELV)
Digital display 4-digit 7-segment LED display
Energy consumption approx. 50 mA at 24 V DC. current
without load
Material
Parts in contact with the measured medium stainless steel 1.4301
Electronics enclosure cast aluminum
Seals Fluororubber (FKM)
Electrical connection M12×1; for 4- or 5-pin connector
Pressure tapping hole G 1/4 M
Protection class IP 65, including connector
Dimensions 75 × 130 × 55 mm 2.95 x 5.12 x 2.16 inches
Installation position vertical
Ordering information
Part number Description
234-11272-4 electronic pressure switch with stainless steel internal diaphragm