Test Method

Penetration tests are performed on petroleum products to determineconsistency and shear stability (lubricating greases) for design‚quality control and identification purposes. A standard cone or needleis released from a penetrometer and allowed to drop freely into thesample for 5 seconds (or a different specified interval) at constanttemperature. The depth of penetration of the cone or needle into thesample is measured in tenths of a millimeter by the penetrometer.
Features and Benefits
• Tests the consistency of lubricating greases‚ petroleum waxes‚ bitumens‚ pastes‚ creams 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‚ removable base accommodates grease worker cups and other ASTM and non-standard sample containers

• Complete selection of penetrometer cones‚ needles and accessories forpetroleum products testing and for a wide range of other applications

• Conforms to all ASTM‚ IP‚ ISO 9001 and related specifications for penetrometers

Click on the image to view a larger photo of the instrument.

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K95500 Microprocessor-Based Digital Penetrometer

A new microprocessor based penetrometer loaded with advanced featuresto provide ease of operation and highly reproducible consistencymeasurements of petroleum products. Microprocessor control provides afull range of measurement and reporting options‚ and operation issimplified by four user programmable presets that facilitate loweringthe penetrator tip to the sample surface.
Automatically timed penetrations. The penetrometer defaults to thestandard ASTM interval of 5.0 seconds‚ or the operator may convenientlyprogram a different interval in the range between 0.1 and 9999.9seconds (in 0.1 second increments). A curing or temperaturestabilization period may also be programmed by the operator (to delaythe release of the penetrator into the sample) and for addedconvenience all selected parameters are retained in memory andautomatically repeated in subsequent tests until changed by theoperator. Separate keypad controls for each parameter simplifyoperation. Penetration and delay intervals count down on a large‚ easyto read LCD on the head of the unit.

Convenient measurement and reporting optionsPenetration measure-mentsin the full range of 0 - 620 in 1/10mm scale are reported in either1/10mm or 1/100mm increments at the operator's option. For qualitycontrol testing‚ a penetration range can be entered into memory priorto testing. If a test result falls outside of the programmed range‚ anaudible signal and visual error message alert the operator of a failedsample. Test results are displayed in digital format on a large LCDreadout on the head of the penetrometer and can be communicated to aprinter or computer via a built-in RS232 interface.

Simplified penetrator tip placement, Correct placement of the penetratortip on the sample surface is essential for accurate penetration testresults. The Koehler Digital Penetrometer has four operatorprogrammable presets that lower the penetrator to the sample surfaceheight at the touch of a button‚ greatly simplifying the process toensure reproducibility. A fine adjustment button permits slightadjustments as needed. Full manual operation is also available with theuse of coarse and fine push button controls and built-in magnifier andilluminator arms. When testing electrically conductive samples‚ abuilt-in circuit senses the sample surface for automatic placement.After testing‚ the penetrometer head returns to a raised position atthe touch of a button to facilitate cleaning of the penetrator andchanging of the sample.

More convenience features, The detachable machined base provides a largeplatform to accommodate a wide range of sample containers and constanttemperature cylinders. It removes easily to permit the head assembly tobe reversed (for use with a constant temperature bath) or mounteddirectly to a bath housing or other location. A built-in rechargeablebattery pack permits field operation and provides back-up in the eventof power interruption. Battery recharges automatically during operationof the penetrometer on standard AC electrical service.

Specifications

Conforms to the specifications of: ASTM D5‚ D217‚ D937‚ D1321‚ D1403‚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; NF T 60-119;60-123; 60-132; 66-004

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

Included Accessories

Standard Plunger‚ 47.5g
Weights‚ 50 and 100g

Dimensions lxwxh‚in.(cm)
Base: 12.5x14 (31.7x35.6)
Overall: 12.5x14x18 (31.7x35.6x45.7)
Net Weight: 35 lbs (15.9kg)

Shipping Information

Shipping Weight: 27 lbs (12.3kg)
Dimensions: 2 Cu. ft.