Calibration, Maintenance – Humboldt H-4133 Acme Penetrometer User Manual
Page 6
Calibration
• Obtain a force-measuring gauge appropriate for measuring compressive
force from 20 to 200 lbf and acceptable as reference standard.
• If the measurement standard will not fit under the Penetrometer’s needle
adapter, remove the breather plug, H-4133.8.4 from the cylinder, and the
needle adapter, H-4133.8.9, from the piston stem.
• Remove the gauge & cylinder assembly, H-4133.7A, by taking off the lock
nut, H-4133.8.5.
• Install the cylinder assembly into the measurement standard test frame and
secure with the lock nut and check in 20 lbf steps from 20 to 200 lbf.
• Apply force and check in 20 lbf steps from 20 to 200lbf.
• If the readings depart from the standard more the ± 2 lbf return the gauge
& cylinder assembly to the factory for service.
Maintenance
Keep the units clean at all times. If re-lubrication is necessary, use Teflon based
grease to avoid particulate accumulations.
- H-4040 Series Water Level Indicators (4 pages)
- H-4114SD.3F Electrical Density Gauge (44 pages)
- 4000 USB Light Weight Deflectometer (96 pages)
- H-4120H Corps of Engineers Cone Penetrometer (8 pages)
- H-4137 Proctor Penetrometer Set (4 pages)
- H-4140 GeoGauge (42 pages)
- H-4166 Voluvessel (8 pages)
- H-4195 Soil Penetrometer, Pocket Style (4 pages)
- H-4200 Soil Penetrometer (4 pages)
- H-4202A Dynamic Cone Penetrometer Set (8 pages)
- H-4204 Proving Ring Penetrometer (8 pages)
- H-4210A Portable, Static Cone Penetrometer (8 pages)
- H-4212MH — Pocket Shear Vane, Metal (2 pages)
- H-4227 Vane Inspection Kit (4 pages)
- H-4385 Resistivity Meter (12 pages)
- H-4386 Soil Box (8 pages)
- HM-4502 Double-Ring Infiltrometer (4 pages)
- HS-4210 Digital Static Cone Penetrometer (8 pages)
- H-1322B Marshall and TSR Compression Machine (12 pages)
- H-9340 Ball & Ring Demonstration (4 pages)
- H-9650 Cork Borer (4 pages)
- H-2790 Hi-Low Detector (4 pages)
- H-3220A Benkelman Beam (8 pages)
- H-1684 Flakiness Gauge for Classification of Aggregate (4 pages)
- H-1686 Void Content Apparatus for Coarse Aggregate (4 pages)
- H-2713A Specific Gravity Bench Set (8 pages)
- H-3383F Humboldt Specific Gravity Flask (Phunque Flask) (8 pages)
- H-3860A Los Angeles Abrasion Machine (8 pages)
- H-4288 Universal Sample Splitter (4 pages)
- H-4325 Sieve Shaker (4 pages)
- HP-1160 Falling Sand Abrasion Tester (4 pages)
- H-3050 Humboldt Vicat Tester (8 pages)
- H-3150 Gilmore Apparatus (4 pages)
- H-3248 Length Comparators (12 pages)
- H-3492A Organic Impurties Test Set (2 pages)
- H-3600 Cement Bleeding Apparatus (4 pages)
- H-3620 Flow Table with Mold (8 pages)
- H-3630A Water Retention Apparatus (4 pages)
- H-1021 Force Determination Adapter (12 pages)
- H-1050 Ductility Machine (8 pages)
- H-1068 Series Ductility Testing Machines (8 pages)
- H-1200 Universal and Portable Penetrometers (8 pages)
- H-1240 Electric Penetrometer with Digital Automatic Timer (8 pages)
- H-1240D Digital Penetrometer with Digital Automatic Timer (8 pages)
- H-1336D Marshall Mechanical Compactors (8 pages)