Gilian Gilibrator 2 – Air Flow Calibration System

WARNINGS!

  • DO NOT pressurize the cell. Pressurizing the cell could cause bodily injury or damage to the cell.
  • Use only approved soap solutions. Non-approved soap solutions may lead to fouling of the cell.
  • DO NOT use gases that may be corrosive the cell, any component of the cell, or may react with the soap solution.
  • DO use clean, filtered air when testing to prevent aerosolized oil droplets from contaminating the cell and soap solution.

Setup

Assembly

  1. Place wet cell on the control unit.
  2. Grip the cell by the base and rotate ¼ turn to lock the cell to the control unit.
  3. Attach the data cable from the back of the control unit. The 9-to-15 pin converter box may be necessary.

Filling

  1. Remove the storage tube from the air outlet barb such that it is only connected to the air inlet barb.
  2. Depress the bubble initiator button.
  3. Using the fill bottle, fill the bubble solution until the liquid level in the cell reaches the top of the straight lip of the bubble generator ring.

Tubing Connections

  1. The top barb on the cell is the air outlet and the storage tube can be left on.
  2. The bottom barb on the cell is the air inlet and should be connected to the outlet of the device or air stream being sampled.

Operation

Start-Up

  1. Turn on the air source.
  2. Depress the bubble initiator several times to “prime” the cell.
  3. The cell is primed when bubbles no longer pop before reaching the top of the cell.
  4. Turn the control unit to “on” and allow the system to run self-tests.

Taking Measurements

  1. Depress the bubble initiator.
  2. If no bubble is formed, release the bubble initiator to form a bubble.
  3. If a bubble is formed, allow the bubble to complete before releasing the bubble initiator and forming another bubble.
  4. The flow rate is determined by the time it takes a bubble to pass two censors in the cell.
  5. The flow rate is displayed along with the average flow rate and the sample size.
  • Press “delete” for 1 second to delete the last reading.
  • Press “delete” for 3 seconds to clear the current batch and start over.

Shut-Down

  1. Turn the unit off by pressing the “off” button.
  2. Turn off the air source.
  3. Disconnect the tubing from the air inlet.
  4. Reconnect the storage tube between the air inlet and outlet barbs.

Storage

  1. Disconnect the data connection cable.
  2. Holding the cell at the base, rotate the cell ¼ turn to unlock the cell from the control unit.
  3. Remove the cell from the control unit.
  4. Disconnect the storage tube from the air outlet barb so that it is only attached to the inlet barb.
  5. Tilt the cell assembly, barbs down, so that the soap solution drains from the air inlet barb.
  6. Reconnect the air inlet and outlet barbs with the storage tube.

Notes

  • The control unit’s battery should be charged for a full 14 hours if the unit is going to be operated without the wall adapter.

Last Revision: December 5, 2005
Aaron Hopkins / Page 1 of 3