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Pulse Generator 

Productseries SP/SFE 30/3003

compliant with ATEX Directive 94/9/EC

for oil and grease lubrication systems 
designed to consume 0,1 to 50 cm³/min

General remarks

Group SP/SFE 30/3003 pulse generators 
are used to monitor oil and grease volumet-
ric flow rates of 0,1 to 50 cm³/min at a 
maximum permissible operating pressure of 
600 bars.

Group SP/SFE 30/3003 pulse generators 
are mainly used on metal-forming machines 
and for the lubrication of cylinders and 
compressors.

The pulse generator, a mechanical device, 
does not have any potential ignition source. 
The built-in floating contact can be used as 
a simple electrical device in intrinsically safe 
circuits in accordance with DIN EN 60079-
11, Section 5.7. 

The pulse generator can be used in zone 1 
and 21 (intrinsically safe) with an Ex i  
certificated electric power supply.

The limit values for the switching contact 
can be found on page 3 in “Technical Data 
=> Electrical System” and must not be 
exceeded.

Pulse Generator SP/SFE 30/3003

Summary of Contents for SP/SFE 30/3003

Page 1: ...ly used on metal forming machines and for the lubrication of cylinders and compressors The pulse generator a mechanical device does not have any potential ignition source The built in floating contact can be used as a simple electrical device in intrinsically safe circuits in accordance with DIN EN 60079 11 Section 5 7 The pulse generator can be used in zone 1 and 21 intrinsically safe with an Ex ...

Page 2: ...oove of piston K2 to the outlet port When piston K1 reaches the end position on the right the locking of piston K2 is terminated The lubricant flows from the inlet port through duct KMR into outlet chamber D3 Fig 1 K1 position right Piston K2 moves to the left The control bolt with balls E1 locks piston K1 The lubricant in outlet chamber D2 is pressed through the lefthand annular groove of piston ...

Page 3: ...act Designation Order No SP SFE 30 3003 pulse generator 24 2583 2526 Designation Order No Straight connector 406 411 G 1 4 for Ø 6 mm tubing Straight connector 96 1108 0058 G 1 4 for Ø 8 mm tubing Note The customer must comply with the specific requirements for the necessary cable section area 4 mm2 and the kind and length of the grounding cable to be connected to the pulse generator For the conne...

Page 4: ...pplied lubricant to determine if it can be used in a central ized system SKF lubrication systems or their components are not approved for use with gases liquefied gases pressurized gases in solution and fluids with a vapor pressure exceeding normal atmospheric pressure 1 013 mbar by more than 0 5 bar at their maximum permissible temperature Hazardous materials of any kind especially the materials ...

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