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Humboldt H-2783 Product Manual
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Humboldt H-2783 Product Manual

Pressure meter
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03.18
H-2783

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Summary of Contents for Humboldt H-2783

  • Page 1 03.18 H-2783...
  • Page 2 Humboldt Pressure Meter— H-2783 Easy-to-use stainless clamping system employs four, one-piece, self-locking clamps to seal lid to base with proper tension. O-ring assures watertight seal. Easy-to-read (to nearest 1/10th %) 4-inch diam- eter direct percentage gauge with calibration adjustments. Features all-brass H-2785.DB super pump for reliability and faster opera- tion.
  • Page 3 Operation Instructions 1. Fill the base with a sample of fresh concrete according to ASTM C231 specifications. Next, strike off the base level full with the strike off bar that is furnished with the instrument. Wipe top of base and cover clean.

  • Page 4: Maintenance Tips

    5. Close both petcocks and immediately press down on the thumb le- ver exhausting air into the base. Wait a few seconds until the hand is stabilized. If all of the air was eliminated and the initial pressure line was correctly selected, the gauge should read zero. If two or more tests show a consistent variation from +/- 0.1% in the result, then change the initial pressure line to compensate for the variation.
  • Page 5 H-2783.3 H-2785.13 H-2785.14 H-2783.2 H-2785.15 H-2783.19 H-2783.17 H-2783.21 H-2785.4 H-2783.12 H-2783.25 H-2785.DB H-2785.18 H-2785.41 H-2783 Air Meter Replacement Items Part No. Description Part No. Description H-2785.1 Pressure chamber H-2785.18 Needle valve seat assembly H-2783.2 Pressure chamber cap H-2783.19 Cover H-2783.3 Pressure chamber elbow H-2785.20...
  • Page 6 Set the specially-designed canister upright at the bottom of the water-filled base, and the meter should read 5% air by volume. H-2783.30 Two calibrators are used for a 10% air reading. Air Meter Calibrator, Brass H-2789...
  • Page 7 CLEAN,REPAIR CALIBRATE Call: 1.800.544.7220...

  • Page 8: Warranty

    Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg.