Inline Water Flow Sensor – 2-Wire Chiller Replacement

LASER PARTS | WATER COOLING & CHILLERS

Inline Water Flow Sensor – 2-Wire Chiller Replacement

This inline water flow sensor is a replacement component for compatible CO2 laser water-cooling systems. Installed in the cooling water circuit, it provides a flow-dependent electrical signal that can be used by a compatible monitoring or protection system.

The sensor features a compact black housing, male threaded water connections on opposite ends, and two attached electrical leads. Its inline design allows it to be installed in a matching water line without requiring a separate external sensing assembly.

Proper coolant circulation is essential for water-cooled CO2 laser tubes. When connected to a correctly configured protection circuit, a compatible water flow sensor can help the equipment detect insufficient circulation.

Important: This sensor must match your existing component's electrical operation, connection dimensions, and installation requirements. It is not a universal replacement for every laser chiller.

Key Features

• Inline Water Flow Monitoring: Intended for detecting a flow condition in a compatible water-cooling circuit.
• Two-Wire Connection: Features two attached electrical leads for connection to a matching monitoring circuit.
• Threaded Water Ports: Male threaded inlet and outlet connections for installation with compatible fittings.
• Compact Housing: Black enclosed body designed for integration into a suitable cooling-water assembly.
• Cooling System Application: Intended for compatible laser water chiller and coolant circulation systems.
• Replacement Component: Suitable for replacing an existing sensor when the electrical and mechanical specifications match.

Product Specifications

Product Type	Inline Water Flow Sensor
Connection Style	Male Threaded Inlet and Outlet
Electrical Connection	2 Attached Wire Leads
Housing Color	Black
Installation Style	Inline Water Circuit
Application	Compatible CO2 Laser Water-Cooling and Chiller Systems
Quantity Included	1 Sensor
Rabbit Laser USA SKU	124

Specification Note: The sensor's electrical operating requirements, switching threshold, contact behavior, and exact thread dimensions have not been confirmed. Verify these details against your existing sensor before installation.

Chiller Compatibility

This water flow sensor is listed for replacement applications involving CW-series water chillers, including certain CW-3000 and CW-5000 configurations.

However, sensors and electrical connections can vary between manufacturers and chiller revisions. Compatibility should be established by comparing this component directly with the existing sensor.

Before ordering, verify:

• Existing sensor model and operating characteristics
• Inlet and outlet thread dimensions
• Electrical wiring and signal requirements
• Normal and fault-condition switching behavior
• Required water flow and operating pressure
• Installation orientation and available clearance

Important: A matching thread size or similar housing appearance does not guarantee that the sensor will operate correctly with your chiller's protection circuit.

Installation & Safety

• Turn off and disconnect the chiller and laser machine from electrical power before servicing.
• Drain or isolate the cooling-water circuit as needed before removing the existing sensor.
• Confirm the replacement sensor's dimensions and electrical characteristics before installation.
• Observe any flow-direction markings on the housing and follow the equipment manufacturer's installation requirements.
• Use compatible fittings and seals to prevent leaks without damaging the sensor housing.
• Connect the electrical leads according to the equipment's verified wiring diagram.
• Refill the water circuit and remove trapped air as directed by the chiller manufacturer.
• Check for water leaks, proper circulation, and correct flow-protection operation before using the laser.

Safety Note: Never bypass or disable a laser's water flow protection circuit. Insufficient coolant circulation can cause serious damage to a water-cooled CO2 laser tube.