GS300 Flow Sensor

For single-line lubrication systems

Flow sensors monitor the oil flow from the dosing point to the lubrication point, dispensing small amounts of oil over short periods of time. They are suitable for centralized intermittent lubrication systems, such as those with piston dosing devices, dosing elements, and oil nozzles, as well as for centralized oil-air lubrication systems.

Technical characteristics and advantages

  • Simple control
  • Monitoring lubricant consumption from the dosing point to the lubrication point
  • Dosing a small amount of oil for only a short period of time

Application areas

  • Machine tools
  • Automotive industry
  • Industrial assembly and automation
Category:

Description

Technical specifications
Operating principle flow sensor
Measurement principle calorimetric
Lubricant oil (10–2000 mm²/s)
Dosage volume 0.01–0.6 cm³/pulse 0.0006–0.03 in³/pulse
Clock frequency max. 4 pulses/min
Operating temperature from +10 to +50 °C from +50 to +122 °F
Working pressure max 40 bar 580 psi
Supply voltage 24 VDC
Residual pulsation 10 %
Operating range UA 18–30 VDC
Max. power consumption IE 25 mA
Pulse output 3 s
Load current IA
GS300 max 10 mA
GS304 max 500 mA per output
Exit protection short circuit protection
Built-in connector Round connector with threaded plug M12×1
Liquid port M8x1 mm, threaded channel for solderless connection with Ø 4 mm tube
Installation position immediately before the lubrication point
Dimensions 95 × 50 × 20 mm 3.74 x 1.96 x 0.78 inches
Vibration resistance 20 g (DIN / IEC 68-2-27, 10–2000 Hz)
Impact resistance 50 g (DIN / IEC 68-2-27, 11 ms)
Ordering information
Part number Switching function
GS300 Contact 1 (BN - brown): + 24 V
Pin 3 (BU - blue): 0 V
Pin 4 (BK - Black): PNP / Normally Open - Closes when flow > 0
GS304P Contact 1 (BN - brown): + 24 V
Contact 2 (WH - White): PNP / Normally Closed - Opens when flow > 0
Pin 3 (BU - blue): 0 V
Pin 4 (BK - Black): PNP / Normally Open - Closes when flow > 0