Calibration and Operation of a High Volume Mass Flow Controlled Ambient Particulate Sampler

Summary

This video tutorial outlines the step-by-step process for calibrating a mass flow control air sampler. It covers the installation of various components, such as the TE 5035 adapter plate and the TE 5028 calibrator, along with detailed instructions for setting up and adjusting the manometer, recorder, and mass flow controller. The calibration process includes taking multiple readings to ensure accuracy, followed by setting up the sampler for operation. After sampling, the video explains how to replace filters, collect data, and prepare for the next cycle, ensuring the equipment runs effectively throughout the process.

Takeaways

• 😀 Ensure proper installation of the TE-5035 top loading adapter plate with snug plastic nuts.
• 😀 Use the TE-5028 calibrator and the TE-5030 manometer to measure flow during calibration.
• 😀 Let the motor warm up for approximately five minutes before calibration starts.
• 😀 Zero the manometer and connect the black tubing to the manometer for accurate readings.
• 😀 Adjust the knob on the calibrator clockwise to mark the chart with corresponding flow values.
• 😀 Take multiple calibration points (e.g., five or more) for accurate results, though five are required.
• 😀 After calibration, reconnect the motor to the mass flow controller and close the recorder door.
• 😀 Record the calibration data in the provided spreadsheet, including site details, temperature, and pressure.
• 😀 Use the calculated slope and intercept to ensure calibration is within the required range for TSP (39-60 CFM).
• 😀 Install a new filter with the rough side up, ensuring it's centered on the filter holder and secured with the frame.
• 😀 Set the sampler's timer to the correct on/off times, adjust the mass flow controller, and tap the recorder for accurate chart readings.

Q & A

What is the first step in setting up the calibration of the mass flow control air sampler?

The first step is to open the lid, loosen the four plastic nuts, and remove the frame.

What needs to be installed after removing the frame?

After removing the frame, install the TE-5035 top-loading adapter plate, ensuring that the plastic washers are on top.

How should the plastic nuts be secured during installation?

The plastic nuts should be tightened until they are snug, ensuring that all four nuts are securely fastened.

What should be done before using the mass flow controller?

Unplug the motor from the mass flow controller and plug it directly into the line circuit. Let the motor warm up for approximately five minutes.

How should the manometer be prepared for calibration?

Loosen the valves on the manometer, remove the valve completely, and screw it back on with one thread. One valve will connect to the black tubing, and the other will be open to the atmosphere.

What is the purpose of tapping the front of the door during calibration?

Tapping the front of the door helps settle the pen on the chart to ensure accurate readings.

How is the chart marking made during calibration?

Use a straight-edge screwdriver to turn the chart drive clockwise and make a mark on the chart based on the manometer readings.

What is the significance of the correlation coefficient during calibration?

The correlation coefficient must be greater than 0.99 to indicate that the calibration is accurate and within the acceptable range.

How should the mass flow controller be set for a specific flow rate?

To set the mass flow controller, use the adjustment screw inside the controller to either increase or decrease the flow rate, tapping the side of the recorder to help center the pen.

What should be done after completing the calibration process?

After calibration, the motor should be plugged back into the mass flow controller, the pen cap should be put back on, and the sampler door should be closed to finish the process.