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CFS50-AAZ00S12

The SICK CFS50-AAZ00S12 is a highly compact and versatile electronic flow sensor designed for monitoring liquid coolants and lubricants in machine tools, production equipment, and other industrial systems. It provides reliable detection of flow, no-flow, and low-flow conditions to prevent machine damage and ensure process reliability.

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Key Features:

Technology: Electronic sensing principle (typically thermal differential or mechanical paddle wheel with electronic pickup) designed specifically for liquids.

Application: Monitors the flow of coolants and lubricants (e.g., cutting oils, hydraulic fluids, grinding coolants).

Connection Size: Features M12 x 1.0 male threaded ports (S12) for easy integration into fluid lines. This is a very common size for small coolant lines.

Output Type: PNP normally open (NO) switching output (AA). The switch closes (provides a signal) when the flow rate exceeds a pre-set threshold.

Setting Method: Pre-configured (Z00). The switching point is typically factory-set to a standard value (e.g., 0.25 l/min) and is not field-adjustable. This simplifies installation and use.

Function: Provides a clear digital signal to the machine's PLC or control system to confirm adequate coolant flow. This is essential for protecting expensive spindles and tools from thermal damage.

Housing: Compact, cylindrical brass housing designed for demanding industrial environments.

Primary Application:
The primary use of this sensor is to protect machine tools by verifying that coolant is actually flowing before allowing a machining operation to begin or continue. It is commonly installed on:

CNC machining centers (mills, lathes)

Grinding machines

EDM (Electrical Discharge Machining) equipment

Any system requiring reliable flow monitoring of non-aggressive liquids.