About Pocket Pentrometer
Specification:
It consists of a light weight barrel assembly with a polished and ground steel loading piston plunger. A direct reading scale is engraved on the piston barrel and indicates load in kg. / sq. cm. A maximum load indicator ring is provided on the penetration plunger. The calibrated spring is heat treated and plated for rust resistance. The barrel diameter is 20mm and the length 150mm. Supplied with carrying case.
A typical pocket penetrometer spec includes a 1/4-inch (6.4 mm) diameter spring-loaded piston, a direct-reading scale for unconfined compressive strength in tons/sq. ft. and kg/cm, and a slip ring indicator to hold the reading. Key specifications also include a calibrated depth groove, rust-resistant construction, a carrying case, and an optional adapter foot to increase the piston area for testing very soft soils.
Key Components & Specifications
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Loading Piston:
A calibrated 1/4-inch (6.4 mm) diameter piston, often made of stainless steel, that is pushed into the soil.
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Calibration Groove:
A marking on the piston that serves as a guide for insertion depth, indicating when the 1/4-inch penetration has been achieved.
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Direct-Reading Scale:
Located on the piston's barrel, this scale provides an approximate measurement of the soil's unconfined compressive strength.
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Indicator Sleeve:
A slip ring that travels with the piston and remains in place after the piston is withdrawn, displaying the peak load reading.
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Calibrated Spring:
A spring mechanism within the penetrometer that compresses under the force exerted by the soil.
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Optional Adapter Foot:
A larger accessory that increases the effective piston area by 16 times, allowing for more accurate readings in very soft or fluid soils.
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Construction:
The device is typically made of stainless steel or features plating to resist rust and ensure durability.
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Soil Classification:
Used in geotechnical engineering to quickly classify the consistency and strength of cohesive soils in the field.
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Field and Lab Use:
Suitable for both rapid field testing and laboratory analysis of soil samples.
Reliable Soil Testing in Your HandDesigned for both field and laboratory conditions, the Pocket Penetrometer allows quick determination of unconfined compressive strength for cohesive soils. Manual operation and robust stainless steel construction make it suitable for rugged use, while its compact design ensures portability. This tool is indispensable for soil engineers, geotechnicians, and inspectors conducting on-site tests or sample evaluations.
Precision Engineering for Accurate MeasurementsThe device boasts a stainless steel piston with a 6.4 mm diameter, engraved depth graduation marks, and a high-contrast analog scale for direct readings. With an accuracy of 0.1 TSF and a resolution of 0.1 TSF, it guarantees dependable results. The ergonomic design and mechanical operation eliminate the need for batteries, ensuring consistent performance wherever you need reliable soil assessment.
FAQ's of Pocket Pentrometer:
Q: How is the Pocket Penetrometer used for soil testing?
A: To use the Pocket Penetrometer, press the stainless steel piston perpendicularly against the soil sample surface until it penetrates to the engraved depth mark (standard depth). The analog scale displays the unconfined compressive strength of the soil directly in tons per square foot (TSF) or kilopascals (kPa).
Q: What soil types can be tested with this instrument?
A: This pocket penetrometer is specifically designed for assessing the unconfined compressive strength of cohesive soils, such as clays, by measuring the resistance offered when the piston is pressed into the soil sample.
Q: When should I use a pocket penetrometer during a soil investigation?
A: Utilize the Pocket Penetrometer during site investigations, quality control in field and laboratory testing, excavation planning, and when quick strength estimations of cohesive soils are required on-site.
Q: Where can the Pocket Penetrometer be effectively utilized?
A: The device can be used in the field for on-site assessments or in laboratories for sample analysis. Its wide operating temperature (0C to 50C) and humidity tolerance make it suitable for various environmental conditions found in India and beyond.
Q: What is the process for reading measurements on the penetrometer?
A: Press the piston into the soil until it reaches the engraved depth indicator; then, read the value shown on the analog scale. Ensure you are operating on a smooth soil surface and using the device on a single specimen at a time for best accuracy.
Q: What are the main benefits of the Pocket Penetrometer?
A: Key benefits include immediate readings, compact design for portability, ease of use, robust stainless steel construction for corrosion resistance, and suitability for both field and laboratory environments. No power supply is needed, ensuring reliability in all settings.
Q: Is training required to operate the Pocket Penetrometer?
A: Minimal training is needed. Clear instructions are provided in the manual. Following the recommended procedure ensures accurate and reproducible results for soil compressive strength estimation.