Air Meter Replacement Parts Quick Order Guide
Product Code:
air-meter-repair-parts
In stock
PRESS-AIRE™ METER KIT REPLACEMENT PARTS DIAGRAM
MODEL LA-0316
FORNEY'S KIT CONTAINS:
- Syringe
- Tamping Rod
- Strike Off Bar
- Calibration Vessel
- Shipping Weight 39 lb (17.7 kg)
- Calibration Tube, inside
- Calibration Tube, outside
- Carrying Case
- Parts List
- Instructions
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TAP BUTTON FOR ADDITIONAL RESOURCES:
CALIBRATION INSTRUCTIONS
- Screw short piece of tubing tightly into petcock hole on underside of cover (note which petcock). Fill base with water. Clamp cover to base.
- Using syringe, inject water into petcock having short tubing until water is expelled through opposite petcock.
- Pump until gauge reads slightly beyond preestablished initial pressure line (generally 3%). Wait a few seconds. If necessary, pump or bleedoff air to adjust hand to initial pressure line.
- Close petcocks. Press needle valve lever to release air in to base. Wait a few seconds until gauge hand stabilizes. Gauge should read 0% if initial pressure line was correct. If two or more tests produce
consistent variations from 1%, change initial pressure line to compensate for variation. Use new initial pressure line for subsequent tests. - Screw curved tube into petcock having short tubing. Open petcock. Press needle valve lever and fill calibrating vessel.
- Open opposite petcock allowing water in curved pipe to run back into base. Base now contains 5% air.
- Pump up air pressure to initial pressure line (3%). Close petcocks. Press needle valve lever. Wait a few seconds for needle to stabilize. Press lever
again to release any remaining air. Gauge should now read 5%. - If two or more tests show gauge reads incorrectly at 5% air in excess of 0.2%, then reset gauge hand by turning recalibrating screw on gauge hand
(older meters, screw is on dial face). - When gauge hand reads correctly at 5%, additional
water may be withdrawn in the same manner to
check results 10%, 15%, 20%, etc.
OPERATING INSTRUCTIONS
- Fill base with concrete according to ASTM C-231 and strike off. Clean cover and base rim; clamp together.
- Open petcocks. Use syringe to inject water through one petcock until water is expelled from opposite petcock.
- Close air bleeder valve on air chamber. Pump up air initial pressure line gauge. Wait a few seconds, tap gauge lightly. If necessary, add or release air to attain reading at initial pressure line. Close petcocks.
- Press needle valve lever to release air into base. Continue pressing lever and lightly tap gauge. Read direct percentage of air.
- Thoroughly clean base, cover and petcock openings with running water.
