Hypertherm 128933 Coolant Flow Gauge

Description

The Hypertherm 128933 Coolant Flow Gauge is a device used to measure the flow rate of coolant in a water-cooled plasma cutting system. The gauge is installed in the coolant return line, and it provides a visual indication of the flow rate. The gauge is also equipped with a switch that can be used to turn the coolant pump on or off.

Specifications

• Flow rate range: 0 to 5 gallons per minute (GPM)
• Accuracy: ±10% of full scale
• Operating temperature: 32°F to 120°F (0°C to 49°C)
• Maximum pressure: 150 PSI (10.3 bar)
• Electrical rating: 120 VAC, 60 Hz, 1 amp

Installation

The Hypertherm 128933 Coolant Flow Gauge is installed in the coolant return line, between the plasma cutter and the coolant reservoir. The gauge should be installed in a vertical position, with the flow arrow pointing in the direction of flow. The gauge is connected to the coolant lines using 1/2-inch NPT fittings.

Operation

The Hypertherm 128933 Coolant Flow Gauge operates by measuring the pressure drop across a flow restrictor. The pressure drop is proportional to the flow rate, and it is displayed on the gauge dial. The gauge is also equipped with a switch that can be used to turn the coolant pump on or off.

Troubleshooting

If the Hypertherm 128933 Coolant Flow Gauge is not functioning properly, there are a few things that can be checked. First, check the coolant flow rate. The gauge should not be used if the flow rate is less than 0.5 GPM. Second, check the coolant temperature. The gauge should not be used if the coolant temperature is above 120°F (49°C). Third, check the electrical connections. The gauge should be connected to a 120 VAC, 60 Hz, 1 amp power supply.

If the gauge is still not functioning properly, it may need to be replaced.

Conclusion

The Hypertherm 128933 Coolant Flow Gauge is a reliable and accurate device for measuring the flow rate of coolant in a water-cooled plasma cutting system. The gauge is easy to install and operate, and it can help to prevent damage to the plasma cutter by ensuring that the coolant is flowing at the correct rate.