Page 186 - Single-line automatic lubrication systems

Flow sensor
Flow monitors and sensors

GS304P

Description
Technical data
Flow sensors keep an eye on the flow of oil from a metering point
to the lubrication point, metering out a small amount of oil for only a Order number GS304P
short period of time. They are suitable for intermittent, centralized
Function principle flow sensor
lubrication systems e. g. with piston metering devices, metering Measuring principle calorimetrical
elements, injection oilers, oil and air centralized lubrication systems. Lubricant 1 ) oil (10 to 2 000 mm 2 /s)
Metering quantity 0,01 - 0,6 cm 3 /pulse
0.0006 - 0.03 in 3 /pulse
Features and benefits Clock frequency 2) max. 4 pulse/min
Operating temperature +10 to +50 °C, +50 to +122 °F
Operating pressure max. 40 bar; 580 psi
• Provide simple control Rated voltage 24 V DC
• Monitor flow of lubricant from the metering point Residual ripple 10%
18 to 30 V DC
Working range UA
to the lubrication point Max. power consumption IE 25 mA
Pulse output 3 s
• Meter out a small amount of oil for only Load current IA for GS300 max. 10 mA
a short period of time for GS304 max. 500 mA per output
Output protection short-circuit protection
Built-in plug circular connector with
Applications M12×1 screw plug
Fluid connection M 8x1 mm, port tapped for
solderless ∅ 4 mm tube
• Machine tools
connection
• Automotive manufacturing Dimensions 95 × 50 × 20 mm
3.74 × 1.96 × 0.78 in
• Industrial assembly and automation Mounting position directly upstream of lubrication point
Vibration resistance 20 g
(DIN / IEC 68-2-27, 10-2000 Hz)
Impact resistance 50 g
(DIN / IEC 68-2-27, 11 ms)

NOTE
Further technical information, technical drawings,
accessories, spare parts or product function descriptions
available on SKF.com/lubrication:
1-1704-EN
3D
skf-lubrication partcommunity com/3d-cad-models 1) Sensor needs 30 sec. of warm-up time
2) The use of oils containing corrosive and/or abrasive additives may impair
sensor function and possibly damage the sensor
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