How to Pressurize the Super Air Meter (HM-345) with the CAPE Tank (HMA-482G)
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- เผยแพร่เมื่อ 5 ก.พ. 2025
- The Gilson HM-345 Super Air Meter (SAM) is a modified version of a conventional Type B Concrete Air Meter. That can determine both the total air content and air void spacing factor of fresh concrete specimens in under 10 minutes.
The Gilson HM-345G CAPE tank is a pressurized air tank fitted with three inflation chucks and regulators, and when used with the Super Air Meter, can eliminate the need to manually pump the Super Air Meter during operation.
Let’s demonstrate how to pressurize your Super air meter using the HM-345G CAPE Tank.
The CAPE Tank consists of an air storage tank three regulators, three pressure gauges and three different colored air hoses. The gray hose is used to pressurize the Super Air meter to 14.5 psi, the blue hose use for 30 psi and the yellow hose used for 45 psi.
To start, be sure the cap is off the Super Air Meter’s air inlet, and the petcocks and release valve are also closed. Also, on the CAPE Tank be sure the valve in the back of the unit is open., as well as the gray, blue and yellow regulators are set to the proper pressure of 14.5, 30, and 45 psi.
Now, make sure the meter is in the SAM Test mode by pressing Enter and moving through the selections until TEST is flashing. Preform
Next, Press Enter until SAM is flashing, and press Enter. DONE will now appear on the display which indicates you are ready to start a SAM test.
Now, pressurize the unit by taking the gray hose and add air to the super air meter until you just exceed the 14.5 psi requirement.
Give the gauge a moment to stabilize. The pressure in the unit can be adjusted by turning the large air pressure release valve slowly until the correct pressure of 14.5 +/- 0.05 psi is maintained. Now tighten the release valve and press Enter.
If a "High" or "Low" Error message appear, then repeat previous pressurization steps.
If pressure is within the limit, an OK will appear on the display.
Now, the display will prompt the user to hold down the lever and hit the base of the unit with the mallet, applying the air to the sample.
Next, pressurize the unit by taking the blue hose and add air to the super air meter until you just exceed the 30-psi requirement.
Give the gauge a moment to stabilize. The pressure in the unit can be adjusted by turning the large air pressure release valve slowly until the correct pressure of 30 +/- 0.05 psi is maintained. Now tighten the release valve.
If pressure is within the limit, an OK will appear on the display. Now, the display will prompt the user to hold down the lever and hit the base of the unit with the mallet, applying the air to the sample.
Next, pressurize the unit by taking the yellow hose and add air to the super air meter until you just exceed the 45-psi requirement.
Give the gauge a moment to stabilize. The pressure in the unit can be adjusted by turning the large air pressure release valve slowly until the correct pressure of 45 +/- 0.05 psi is maintained. Now tighten the release valve.
If pressure is within the limit, an OK will appear on the display. Now, the display will prompt the user to hold down the lever and hit the base of the unit with the mallet, applying the air to the sample.
Now the HM-345 Super Air Meter is properly pressurized, and you can continue with the test.
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