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Home  >>  Products  >>  Viscosity  >>  Digital Penetrometers

Digital Penetrometers

Microprocessor Based

Conforms to the following specifications: ASTM D5, D217, D937, Dl321, Dl403, D2884, D4950; IP 49, 50, 179, 310; ISo 2137; DIN 51804, 51580, 51579; FTM 791-311,791-312, 791-313; AOCS Cc 16-60; AACC 58-14

A new microprocessor based penetrometer loaded with advanced features to provide ease of operation and highly reproducible consistency measurements of solid to semisolid products.

Microprocessor control provides a full range of measurement and reporting options, and operation is simplified by four user programmable presets that facilitate lowering the penetrator tip to the sample surface.

Digital Penetrometers




  • Tests the consistency of lubricating greases, petroleum waxes, bitumens, and other solid to semi-solid products.
  • Automatically timed operator programmable penetration measurements
  • Motorized placement of penetrator on sample surface
  • Large LCD to display all functions
  • RS232 port for data transfer
  • Full measurement range of 0-620 in 1/10mm scale or 1/100mm scale
  • Rechargeable battery or AC operation
  • Large, detachable base accommodates grease worker cups and a wide range of sample containers. Removable head assembly permits use with a constant temperature bath.
  • Complete selection of penetrometer cones, needles and accessories for petroleum products testing and for a wide range of other applications
  • Conforms to all ASTM, IP, ISO 9001 and related specifications for penetrometers


Technical Data

Technical Data
Penetration Range: 0 - 62.0mm (0-620 penetration scale) in 1/10mm or 1/100mm
Penetration Interval: Operator variable from 0.1 to 9999.9 seconds with automatic
repeat function and 5.0 second default.
Dimensions LxWxH, in (cm): Base: 12-1/2" x 14" (31.7 x35.6 cm)
Overall: 12-1/2" x 14" x 18" (31.7 x 35.6 x 45.7cm)
Net Weight: 21 lbs (9.5 kg)
Shipping Weight: 27 lbs (12.3 kg)
Shipping Dimensions: 2 Cu. ft.


Automatically Time Penetrations

The penetrometer defaults to the standard ASTM interval of 5.0 seconds, or the operator may conveniently program a different interval in the range between 0.1 and 9999.9 seconds (in 0.1 second increments). A curing or temperature stabilization period may also be programmed by the operator (to delay the release of the penetrator into the sample) and for added convenience all selected parameters are retained in memory and automatically repeated in subsequent tests until changed by the operator. Separate keypad controls for each parameter simplify operation. Penetration and delay intervals count down on a large, easy to read LCD on the head of the unit.


Convenient Measurement and Reporting Options

Penetration measurements in the full range of 0 - 620 in 1/10 mm scale are reported in either 1/10 mm or 1/100 mm increments at the operator's option. For quality control testing, a penetration range can be entered into memory prior to testing. If a test result falls outside of the programmed range, an audible signal and visual error message alert the operator of a failed sample. Test results are displayed in digital format on a large LCD readout on the head of the penetrometer and can be communicated to a printer or computer via a built-in RS232 interface.


Simplified Penetrator Tip Replacement

Correct placement of the penetrater tip on the sample surface is essential for accurate penetration test results. The Digital Penetrometer has four operator programmable presets that lower the penetrater to the sample surface height at the touch of a button, greatly simplifying the process to ensure reproducibility. A fine adjustment button permits slight adjustments as needed. Full manual operation is also available with the use of coarse and fine push button controls and built-in magnifier and illuminator arms. When testing electrically conductive samples, a built-in circuit senses the sample surface for automatic placement. After testing, the penetrometer head returns to a raised position at the touch of a button to facilitate cleaning of the penetrometer and changing of the sample.


Detachable Machined Base

The detachable machined base provides a large platform to accommodate a wide range of sample containers and constant temperature cylinders. It removes easily to permit the head assembly to be reversed (for use with a constant temperature bath) or mounted directly to a bath housing or other location. A built-in rechargeable battery pack permits field operation and provides back-up in the event of power interruption. Battery recharges automatically during operation of the penetrometer on standard AC electrical service.


Digital Penetrometer Software Details:

  • RS232 Communication
  • Windows platform (98SE, 2000, NT, ME, XP)
  • Minimal memory (RAM) use-limits draw on windows resources
  • Real-time, automatic data acquisition
  • Timer/stopwatch available for any lab purposes needed. 
  • Default values auto filled for each chosen ASTM method.
  • View saved test results and recalculate if desired
  • Calculations
    • Average, standard deviation, and ASTM repeatability on current and previous result
    • Yield stress as per ASTM D2884
    • For ASTM D1403, automatically calculates full penetration values (ASTM D217 value) from 1/4 and 1/2 scale tests.
  • Print test results to a printer directly with ISO format of test results
  • Flexibility in data collection method


Cones, Needles and Accessories

Use with Digital Penetrometer to determine the consistency of petroleum products. A wide range of penetrometer types are available for non-petroleum samples (see below).

Cones, Needles and Accessories



Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices
Penetration of Lubricating Greases
Test Method Standards: ASTM D217; IP 50; ISO 2137; DIN 51804; FTM 791 -311, FTM 791-313
PE-2141 Cone, Magnesium with hardened stainless steel tip, 102.5g. Standard cone per ASTM D217 $995.00


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