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Introduction
The Flex-Pro® A3 Peristaltic Metering Pump features a patented Tube Failure Detection (TFD) system that automatically shuts down the pump if the pump tube ruptures and chemicals are detected in the pump head. The system is designed to react to most chemicals while disregarding water, preventing false triggering due to rain, condensation, or wash-down maintenance procedures. This guide will help you test the TFD system with your specific chemical and adjust the sensitivity if needed.
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Testing the TFD System
Step 1: Remove Pump Tube and Roller Assembly
Step 1: Remove Pump Tube and Roller Assembly
Remove the pump tube and roller assembly to expose the TFD sensors.
Step 2: Simulate a Leak
Step 2: Simulate a Leak
Place a small amount of the chemical inside the bottom of the pump head to simulate a leak. Ensure that the chemical completely covers both sensors, creating a closed circuit.
Step 4: Check for Alarm Icon
Step 4: Check for Alarm Icon
The TFD system should activate within 2 seconds, displaying an alarm icon.
Step 5: Clear the Alarm and Clean the Pump Head
Step 5: Clear the Alarm and Clean the Pump Head
Remove the pump head cover and press the stop button to clear the TFD alarm. Wipe clean any chemical from inside the pump head and the TFD sensor pins.
Adjusting the TFD Sensitivity
Step 6: Access the Input Setup Menu
Step 6: Access the Input Setup Menu
Press the menu button, then press and release the down arrow to highlight the input setup selection and press Enter.
Step 7: Select Set TFD
Step 7: Select Set TFD
Press and release the down arrow until the "Set TFD" selection is highlighted, and press Enter.
Step 8: Adjust the Sensitivity
Step 8: Adjust the Sensitivity
To increase sensitivity, press the up arrow. To decrease, press the down arrow. The default setting is 75% sensitivity, and the TFD range goes from 75% to 100%.
Step 9: Save and Exit
Step 9: Save and Exit
Once the sensitivity is set, press Enter. To back out of the previous menu, press and release the down arrow to highlight the "Escape" selection and press Enter.
Sensitivity Recommendations
Sensitivity Recommendations
It is recommended that the pump be left at the default setting of 75% sensitivity, as this will reduce the chance of false triggers. Only increase sensitivity if the solution you are pumping does not trigger the TFD alarm at 75%.
✅ Following these steps will help you test and set up the patented Tube Failure Detection system on the Flex-Pro® A3 Peristaltic Metering Pump. This ensures a safe chemical injection environment for both the operator and the facility.
Still have Questions?
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